Toroidal transformer
RKD
General Data
Rated input voltage 2 x 115 Vac
Rated output voltage 2 x 12 - 2 x 115 Vac
Power 15 - 3000 VA
Insulation class B
Maximum ambient temperature 40 °C
Efficiency up to 98 %
Degree of protection IP 00
Advantages
Minimum size at high output
Low weight
Double input voltage for series or parallel connection
Double output voltage for series or parallel connection
Minimal no-load losses
Outstanding temperature behaviour thanks to low magnetic leakage field
Very low noise field
Applications
As a mains transformer for adjustment of the voltage and simple electrical
isolation.
As an isolating transformer for the safe electrical isolation of the input and
output sides. The transformer may be used to set up protective separation as
a protective measure in accordance with VDE 0100.
As a safety isolating transformer for the safe electrical isolation of the input
and output sides. The transformer is suitable for creating SELV and PELV
circuits because of the limit on the output voltage.
Standards / 2 "
Certifications W
Mains transformer
to: VDE 0570 Teil 2-1, DIN EN 61558-2-1, EN 61558-2-1, IEC 61558-2-1, UL
5085-1/-2, CSA 22.2 No.66
Isolating transformer
to: VDE 0570 Part 2-4, DIN EN 61558-2-4, EN 61558-2-4, IEC 61558-2-4,
UL 5085-1/-2, CSA 22.2 No.66
Safety isolating transformer
to: VDE 0570 Part 2-6, DIN EN 61558-2-6, EN 61558-2-6, IEC 61558-2-6,
UL 5085-1/-2, CSA 22.2 No.66
UL 5085-1/-2, CSA 22.2 No.66
Toroidal transformer
RKD
Type RKD 15/.. RKD 20/.. RKD 30/.. RKD 40/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x12 Vac: RKD 15/2x12
2x15 Vac: RKD 15/2x15
2x18 Vac: RKD 15/2x18
2x12 Vac: RKD 20/2x12
2x15 Vac: RKD 20/2x15
2x18 Vac: RKD 20/2x18
2x24 Vac: RKD 20/2x24**
2x12 Vac: RKD 30/2x12
2x15 Vac: RKD 30/2x15
2x18 Vac: RKD 30/2x18
2x24 Vac: RKD 30/2x24*
2x12 Vac: RKD 40/2x12
2x15 Vac: RKD 40/2x15
2x18 Vac: RKD 40/2x18
2x24 Vac: RKD 40/2x24*
Rated Power 15 VA 20 VA 30 VA 40 VA
No-load voltage (app. x factor) 1.15 1.30 1.16 1.18
No-load loss (typ.) 0.30 W 0.20 W 0.45 W 0.40 W
Efficiency 83 % 74 % 82 % 84 %
Standards
Classification Safety isolating transformer Safety isolating transformer
**Mains transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
TRANSFORMERS
146 Subject to change
Toroidal transformer
RKD
General Data
Rated input voltage 2 x 115 Vac
Rated output voltage 2 x 12 - 2 x 115 Vac
Power 15 - 3000 VA
Insulation class B
Maximum ambient temperature 40 °C
Efficiency up to 98 %
Degree of protection IP 00
Advantages
Minimum size at high output
Low weight
Double input voltage for series or parallel connection
Double output voltage for series or parallel connection
Minimal no-load losses
Outstanding temperature behaviour thanks to low magnetic leakage field
Very low noise field
Applications
As a mains transformer for adjustment of the voltage and simple electrical
isolation.
As an isolating transformer for the safe electrical isolation of the input and
output sides. The transformer may be used to set up protective separation as
a protective measure in accordance with VDE 0100.
As a safety isolating transformer for the safe electrical isolation of the input
and output sides. The transformer is suitable for creating SELV and PELV
circuits because of the limit on the output voltage.
Standards / 2 "
Certifications W
Mains transformer
to: VDE 0570 Teil 2-1, DIN EN 61558-2-1, EN 61558-2-1, IEC 61558-2-1, UL
5085-1/-2, CSA 22.2 No.66
Isolating transformer
to: VDE 0570 Part 2-4, DIN EN 61558-2-4, EN 61558-2-4, IEC 61558-2-4,
UL 5085-1/-2, CSA 22.2 No.66
Safety isolating transformer
to: VDE 0570 Part 2-6, DIN EN 61558-2-6, EN 61558-2-6, IEC 61558-2-6,
UL 5085-1/-2, CSA 22.2 No.66
UL 5085-1/-2, CSA 22.2 No.66
Toroidal transformer
RKD
Type RKD 15/.. RKD 20/.. RKD 30/.. RKD 40/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x12 Vac: RKD 15/2x12
2x15 Vac: RKD 15/2x15
2x18 Vac: RKD 15/2x18
2x12 Vac: RKD 20/2x12
2x15 Vac: RKD 20/2x15
2x18 Vac: RKD 20/2x18
2x24 Vac: RKD 20/2x24**
2x12 Vac: RKD 30/2x12
2x15 Vac: RKD 30/2x15
2x18 Vac: RKD 30/2x18
2x24 Vac: RKD 30/2x24*
2x12 Vac: RKD 40/2x12
2x15 Vac: RKD 40/2x15
2x18 Vac: RKD 40/2x18
2x24 Vac: RKD 40/2x24*
Rated Power 15 VA 20 VA 30 VA 40 VA
No-load voltage (app. x factor) 1.15 1.30 1.16 1.18
No-load loss (typ.) 0.30 W 0.20 W 0.45 W 0.40 W
Efficiency 83 % 74 % 82 % 84 %
Standards
Classification Safety isolating transformer Safety isolating transformer
**Mains transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
TRANSFORMERS
147
Subject to change
1.1
1.2
1.4
1.3
1.5
1.1
Toroidal transformer
RKD
Type RKD 50/.. RKD 60/.. RKD 80/.. RKD 100/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x12 Vac: RKD 50/2x12
2x15 Vac: RKD 50/2x15
2x18 Vac: RKD 50/2x18
2x24 Vac: RKD 50/2x24*
2x12 Vac: RKD 60/2x12
2x15 Vac: RKD 60/2x15
2x18 Vac: RKD 60/2x18
2x24 Vac: RKD 60/2x24*
2x12 Vac: RKD 80/2x12
2x15 Vac: RKD 80/2x15
2x18 Vac: RKD 80/2x18
2x24 Vac: RKD 80/2x24*
2x12 Vac: RKD 100/2x12
2x15 Vac: RKD 100/2x15
2x18 Vac: RKD 100/2x18
2x24 Vac: RKD 100/2x24*
Rated Power 50 VA 60 VA 80 VA 100 VA
No-load voltage (app. x factor) 1.18 1.14 1.12 1.10
No-load loss (typ.) 0.40 W 0.70 W 0.90 W 0.90 W
Efficiency 83 % 86 % 88 % 89 %
Standards
Classification Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
Toroidal transformer
RKD
Type RKD 120/.. RKD 160/.. RKD 200/.. RKD 225/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x12 Vac: RKD 120/2x12
2x15 Vac: RKD 120/2x15
2x18 Vac: RKD 120/2x18
2x24 Vac: RKD 120/2x24*
2x12 Vac: RKD 160/2x12
2x15 Vac: RKD 160/2x15
2x18 Vac: RKD 160/2x18
2x24 Vac: RKD 160/2x24*
2x12 Vac: RKD 200/2x12
2x15 Vac: RKD 200/2x15
2x18 Vac: RKD 200/2x18
2x24 Vac: RKD 200/2x24*
2x12 Vac: RKD 225/2x12
2x15 Vac: RKD 225/2x15
2x18 Vac: RKD 225/2x18
2x24 Vac: RKD 225/2x24*
Rated Power 120 VA 160 VA 200 VA 225 VA
No-load voltage (app. x factor) 1.09 1.08 1.07 1.07
No-load loss (typ.) 0.90 W 1.10 W 1.50 W 1.50 W
Efficiency 91 % 91 % 92 % 93 %
Standards
Classification Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
TRANSFORMERS
148 Subject to change
Toroidal transformer
RKD
Type RKD 50/.. RKD 60/.. RKD 80/.. RKD 100/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x12 Vac: RKD 50/2x12
2x15 Vac: RKD 50/2x15
2x18 Vac: RKD 50/2x18
2x24 Vac: RKD 50/2x24*
2x12 Vac: RKD 60/2x12
2x15 Vac: RKD 60/2x15
2x18 Vac: RKD 60/2x18
2x24 Vac: RKD 60/2x24*
2x12 Vac: RKD 80/2x12
2x15 Vac: RKD 80/2x15
2x18 Vac: RKD 80/2x18
2x24 Vac: RKD 80/2x24*
2x12 Vac: RKD 100/2x12
2x15 Vac: RKD 100/2x15
2x18 Vac: RKD 100/2x18
2x24 Vac: RKD 100/2x24*
Rated Power 50 VA 60 VA 80 VA 100 VA
No-load voltage (app. x factor) 1.18 1.14 1.12 1.10
No-load loss (typ.) 0.40 W 0.70 W 0.90 W 0.90 W
Efficiency 83 % 86 % 88 % 89 %
Standards
Classification Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
Toroidal transformer
RKD
Type RKD 120/.. RKD 160/.. RKD 200/.. RKD 225/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x12 Vac: RKD 120/2x12
2x15 Vac: RKD 120/2x15
2x18 Vac: RKD 120/2x18
2x24 Vac: RKD 120/2x24*
2x12 Vac: RKD 160/2x12
2x15 Vac: RKD 160/2x15
2x18 Vac: RKD 160/2x18
2x24 Vac: RKD 160/2x24*
2x12 Vac: RKD 200/2x12
2x15 Vac: RKD 200/2x15
2x18 Vac: RKD 200/2x18
2x24 Vac: RKD 200/2x24*
2x12 Vac: RKD 225/2x12
2x15 Vac: RKD 225/2x15
2x18 Vac: RKD 225/2x18
2x24 Vac: RKD 225/2x24*
Rated Power 120 VA 160 VA 200 VA 225 VA
No-load voltage (app. x factor) 1.09 1.08 1.07 1.07
No-load loss (typ.) 0.90 W 1.10 W 1.50 W 1.50 W
Efficiency 91 % 91 % 92 % 93 %
Standards
Classification Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
TRANSFORMERS
149
Subject to change
1.1
1.2
1.4
1.3
1.5
1.1
Toroidal transformer
RKD
Type RKD 250/.. RKD 300/.. RKD 330/.. RKD 400/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x12 Vac: RKD 250/2x12
2x18 Vac: RKD 250/2x18
2x24 Vac: RKD 250/2x24*
2x30 Vac: RKD 250/2x30*
2x12 Vac: RKD 300/2x12
2x18 Vac: RKD 300/2x18
2x24 Vac: RKD 300/2x24*
2x18 Vac: RKD 330/2x18 2x18 Vac: RKD 400/2x18
2x24 Vac: RKD 400/2x24*
2x30 Vac: RKD 400/2x30*
Rated Power 250 VA 300 VA 330 VA 400 VA
No-load voltage (app. x factor) 1.05 1.06 1.05 1.05
No-load loss (typ.) 2.10 W 2.80 W 2.80 W 3.10 W
Efficiency 93 % 93 % 94 % 94 %
Standards
Classification Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer Safety isolating transformer
*Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
Toroidal transformer
RKD
Type RKD 500/.. RKD 625/.. RKD 800/.. RKD 1000/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x24 Vac: RKD 500/2x24
2x30 Vac: RKD 500/2x30
2x35 Vac: RKD 500/2x35
2x30 Vac: RKD 625/2x30
2x115 Vac: RKD 625/2x115 2x40 Vac: RKD 800/2x40
2x115 Vac: RKD 800/2x115 2x50 Vac: RKD 1000/2x50
2x115 Vac: RKD 1000/2x115
Rated Power 500 VA 625 VA 800 VA 1000 VA
No-load voltage (app. x factor) 1.04 1.04 1.04 1.02
No-load loss (typ.) 3.40 W 4.90 W 5.30 W 6.50 W
Efficiency 95 % 95 % 96 % 96 %
Standards
Classification Isolating transformer Isolating transformer Isolating transformer Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
TRANSFORMERS
150 Subject to change
Toroidal transformer
RKD
Type RKD 250/.. RKD 300/.. RKD 330/.. RKD 400/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x12 Vac: RKD 250/2x12
2x18 Vac: RKD 250/2x18
2x24 Vac: RKD 250/2x24*
2x30 Vac: RKD 250/2x30*
2x12 Vac: RKD 300/2x12
2x18 Vac: RKD 300/2x18
2x24 Vac: RKD 300/2x24*
2x18 Vac: RKD 330/2x18 2x18 Vac: RKD 400/2x18
2x24 Vac: RKD 400/2x24*
2x30 Vac: RKD 400/2x30*
Rated Power 250 VA 300 VA 330 VA 400 VA
No-load voltage (app. x factor) 1.05 1.06 1.05 1.05
No-load loss (typ.) 2.10 W 2.80 W 2.80 W 3.10 W
Efficiency 93 % 93 % 94 % 94 %
Standards
Classification Safety isolating transformer
*Isolating transformer Safety isolating transformer
*Isolating transformer Safety isolating transformer Safety isolating transformer
*Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
Toroidal transformer
RKD
Type RKD 500/.. RKD 625/.. RKD 800/.. RKD 1000/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x24 Vac: RKD 500/2x24
2x30 Vac: RKD 500/2x30
2x35 Vac: RKD 500/2x35
2x30 Vac: RKD 625/2x30
2x115 Vac: RKD 625/2x115 2x40 Vac: RKD 800/2x40
2x115 Vac: RKD 800/2x115 2x50 Vac: RKD 1000/2x50
2x115 Vac: RKD 1000/2x115
Rated Power 500 VA 625 VA 800 VA 1000 VA
No-load voltage (app. x factor) 1.04 1.04 1.04 1.02
No-load loss (typ.) 3.40 W 4.90 W 5.30 W 6.50 W
Efficiency 95 % 95 % 96 % 96 %
Standards
Classification Isolating transformer Isolating transformer Isolating transformer Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
TRANSFORMERS
151
Subject to change
1.1
1.2
1.4
1.3
1.5
1.1
Toroidal transformer
RKD
Type RKD 1200/.. RKD 1600/.. RKD 2000/.. RKD 3000/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x115 Vac: RKD 1200/2x115 2x115 Vac: RKD 1600/2x115 2x115 Vac: RKD 2000/2x115 2x115 Vac: RKD 3000/2x115
Rated Power 1200 VA 1600 VA 2000 VA 3000 VA
No-load voltage (app. x factor) 1.03 1.02 1.02 1.01
No-load loss (typ.) 7.50 W 9.60 W 10.40 W 12.60 W
Efficiency 96 % 97 % 97 % 98 %
Standards
Classification Isolating transformer Isolating transformer Isolating transformer Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
Toroidal transformer
RKD
Typ
Fixing method
Terminals
Weight
Major diameter Ø
Outside diameter in the area$br
$of the wire lead
RKD 15/.. Mounting kit, M5 bolt Connecting leads, 200 mm 0.32 kg 59 mm 62 mm 30 mm
RKD 20/.. Mounting kit, M5 bolt Connecting leads, 200 mm 0.35 kg 61 mm 63 mm 32 mm
RKD 30/.. Mounting kit, M5 bolt Connecting leads, 200 mm 0.47 kg 68 mm 70 mm 31 mm
RKD 40/.. Mounting kit, M6 bolt Connecting leads, 200 mm 0.56 kg 75 mm 77 mm 34 mm
RKD 50/.. Mounting kit, M6 bolt Connecting leads, 200 mm 0.70 kg 77 mm 79 mm 39 mm
RKD 60/.. Mounting kit, M6 bolt Connecting leads, 200 mm 0.75 kg 80 mm 83 mm 38 mm
RKD 80/.. Mounting kit, M6 bolt Connecting leads, 200 mm 1.08 kg 88 mm 91 mm 43 mm
RKD 100/.. Mounting kit, M6 bolt Connecting leads, 200 mm 1.19 kg 92 mm 94 mm 45 mm
RKD 120/.. Mounting kit, M6 bolt Connecting leads, 200 mm 1.41 kg 94 mm 96 mm 45 mm
RKD 160/.. Mounting kit, M6 bolt Connecting leads, 200 mm 1.73 kg 105 mm 107 mm 50 mm
RKD 200/.. Mounting kit, M8 bolt Connecting leads, 200 mm 2.16 kg 114 mm 116 mm 53 mm
RKD 225/.. Mounting kit, M8 bolt Connecting leads, 200 mm 2.35 kg 115 mm 117 mm 54 mm
RKD 250/.. Mounting kit, M8 bolt Connecting leads, 200 mm 2.52 kg 114 mm 117 mm 54 mm
RKD 300/.. Mounting kit, M8 bolt Connecting leads, 200 mm 3.01 kg 125 mm 127 mm 64 mm
RKD 330/.. Mounting kit, M8 bolt Connecting leads, 200 mm 3.30 kg 124 mm 127 mm 65 mm
RKD 400/.. Mounting kit, M8 bolt Connecting leads, 200 mm 4.05 kg 128 mm 131 mm 75 mm
RKD 500/.. Mounting kit, M8 bolt Connecting leads, 200 mm 4.80 kg 140 mm 143 mm 66 mm
RKD 625/.. Mounting kit, M8 bolt Connecting leads, 200 mm 6.10 kg 152 mm 154 mm 74 mm
RKD 800/.. Mounting kit, M8 bolt Connecting leads, 200 mm 7.00 kg 170 mm 172 mm 72 mm
RKD 1000/.. Mounting kit, M8 bolt Connecting leads, 200 mm 8.25 kg 168 mm 170 mm 85 mm
RKD 1200/.. Remaining hole casting,
with integrated mounting holes Connecting leads, 200 mm 9.80 kg 167 mm 170 mm 100 mm
RKD 1600/.. Remaining hole casting,
with integrated mounting holes Connecting leads, 200 mm 13.50 kg 202 mm 205 mm 100 mm
RKD 2000/.. Remaining hole casting,
with integrated mounting holes Connecting leads, 200 mm 15.00 kg 206 mm 209 mm 108 mm
RKD 3000/.. Remaining hole casting,
with integrated mounting holes Connecting leads, 200 mm 21.00 kg 215 mm 225 mm 130 mm
30
TRANSFORMERS
152 Subject to change
Toroidal transformer
RKD
Type RKD 1200/.. RKD 1600/.. RKD 2000/.. RKD 3000/..
Input
Rated input Voltage 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac 2 x 115 Vac
Rated frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage: Order no. 2x115 Vac: RKD 1200/2x115 2x115 Vac: RKD 1600/2x115 2x115 Vac: RKD 2000/2x115 2x115 Vac: RKD 3000/2x115
Rated Power 1200 VA 1600 VA 2000 VA 3000 VA
No-load voltage (app. x factor) 1.03 1.02 1.02 1.01
No-load loss (typ.) 7.50 W 9.60 W 10.40 W 12.60 W
Efficiency 96 % 97 % 97 % 98 %
Standards
Classification Isolating transformer Isolating transformer Isolating transformer Isolating transformer
Approvals
Approvals cURus cURus cURus cURus
Environment
Ambient temperature max. 40 °C 40 °C 40 °C 40 °C
Safety and protection
Type open type open type open type open type
Class of Insulation System VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105 VDE=B, UL=class 105
Protection index IP 00 IP 00 IP 00 IP 00
Safety class (prepared) II II II II
Short circuit strength non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Test voltage 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz 4000 Vac, 50 Hz
Order numbers
Order Number refer to rated output voltage refer to rated output voltage refer to rated output voltage refer to rated output voltage
+
-
Toroidal transformer
RKD
Typ
Fixing method
Terminals
Weight
Major diameter Ø
Outside diameter in the area$br
$of the wire lead
RKD 15/.. Mounting kit, M5 bolt Connecting leads, 200 mm 0.32 kg 59 mm 62 mm 30 mm
RKD 20/.. Mounting kit, M5 bolt Connecting leads, 200 mm 0.35 kg 61 mm 63 mm 32 mm
RKD 30/.. Mounting kit, M5 bolt Connecting leads, 200 mm 0.47 kg 68 mm 70 mm 31 mm
RKD 40/.. Mounting kit, M6 bolt Connecting leads, 200 mm 0.56 kg 75 mm 77 mm 34 mm
RKD 50/.. Mounting kit, M6 bolt Connecting leads, 200 mm 0.70 kg 77 mm 79 mm 39 mm
RKD 60/.. Mounting kit, M6 bolt Connecting leads, 200 mm 0.75 kg 80 mm 83 mm 38 mm
RKD 80/.. Mounting kit, M6 bolt Connecting leads, 200 mm 1.08 kg 88 mm 91 mm 43 mm
RKD 100/.. Mounting kit, M6 bolt Connecting leads, 200 mm 1.19 kg 92 mm 94 mm 45 mm
RKD 120/.. Mounting kit, M6 bolt Connecting leads, 200 mm 1.41 kg 94 mm 96 mm 45 mm
RKD 160/.. Mounting kit, M6 bolt Connecting leads, 200 mm 1.73 kg 105 mm 107 mm 50 mm
RKD 200/.. Mounting kit, M8 bolt Connecting leads, 200 mm 2.16 kg 114 mm 116 mm 53 mm
RKD 225/.. Mounting kit, M8 bolt Connecting leads, 200 mm 2.35 kg 115 mm 117 mm 54 mm
RKD 250/.. Mounting kit, M8 bolt Connecting leads, 200 mm 2.52 kg 114 mm 117 mm 54 mm
RKD 300/.. Mounting kit, M8 bolt Connecting leads, 200 mm 3.01 kg 125 mm 127 mm 64 mm
RKD 330/.. Mounting kit, M8 bolt Connecting leads, 200 mm 3.30 kg 124 mm 127 mm 65 mm
RKD 400/.. Mounting kit, M8 bolt Connecting leads, 200 mm 4.05 kg 128 mm 131 mm 75 mm
RKD 500/.. Mounting kit, M8 bolt Connecting leads, 200 mm 4.80 kg 140 mm 143 mm 66 mm
RKD 625/.. Mounting kit, M8 bolt Connecting leads, 200 mm 6.10 kg 152 mm 154 mm 74 mm
RKD 800/.. Mounting kit, M8 bolt Connecting leads, 200 mm 7.00 kg 170 mm 172 mm 72 mm
RKD 1000/.. Mounting kit, M8 bolt Connecting leads, 200 mm 8.25 kg 168 mm 170 mm 85 mm
RKD 1200/.. Remaining hole casting,
with integrated mounting holes Connecting leads, 200 mm 9.80 kg 167 mm 170 mm 100 mm
RKD 1600/.. Remaining hole casting,
with integrated mounting holes Connecting leads, 200 mm 13.50 kg 202 mm 205 mm 100 mm
RKD 2000/.. Remaining hole casting,
with integrated mounting holes Connecting leads, 200 mm 15.00 kg 206 mm 209 mm 108 mm
RKD 3000/.. Remaining hole casting,
with integrated mounting holes Connecting leads, 200 mm 21.00 kg 215 mm 225 mm 130 mm
30
TRANSFORMERS
153
Subject to change
1.1
1.2
1.4
1.3
1.5
1.1