2-48 Specifications are subject to change without notice (07.05.2002)
Rated opera- Non-rep. Control Rated operational current
tional voltage voltage voltage 25 AACrms 50 AACrms 75 AACrms 100 AACrms
230 VACrms 650 Vp5 to 24 VDC/AC RM1A23M25 RM1A23M50 RM1A23M75 RM1A23M100
400 VACrms 850 Vp5 to 24 VDC/AC RM1A40M25 RM1A40M50 RM1A40M75 RM1A40M100
480 VACrms 1200 Vp5 to 24 VDC/AC RM1A48M25 RM1A48M50 RM1A48M75 RM1A48M100
600 VACrms 1400 Vp5 to 24 VDC/AC RM1A60M25 RM1A60M50 RM1A60M75 RM1A60M100
Zero switching AC Solid State Relay
Low voltage AC/DC control: 5 to 24 V
Direct copper bonding (DCB) technology
LED indication
Built-in varistor
Clip-on IP 20 protection cover
Self-lifting terminals
Housing free of moulding mass
Operational ratings up to 100 AACrms and 600 VAC
Opto-insulation: > 4000 VACrms
Product Description
The industrial, 1-phase relay
with antiparallel thyristor out-
put is the most widely used
SSR due to its multiple appli-
cation possibilities. This relay
has been designed to inter-
face low voltage AC or DC
control systems with high
voltage resistive, inductive
and capacitive loads. The
zero switching relay switches
ON when the sinusoidal
Solid State Relay
Number of poles
Switching mode
Rated operational voltage
Control voltage
Rated operational current
Ordering Key
Solid State Relays
curve crosses zero and
switches OFF when the cur-
rent crosses zero. The built-
in varistor secures transient
protection for the heavy
industrial applications, and
the LED indicates the status
of the control input. The clip-
on cover is securing touch
safety to IP 20. Protected
output terminals can take
cables up to 16 mm2.
Type Selection
Switching mode Rated operational Control voltage Rated operational
voltage current
A: Zero Switching 23: 230 VACrms M: 5 to 24 VDC/AC 25: 25 AACrms
B: Instant-on switching 40: 400 VACrms 50: 50 AACrms
48: 480 VACrms 75: 75 AACrms
60: 600 VACrms 100: 100 AACrms
Selection Guide
Low Voltage AC/DC Control: 5 to 24 V
Types RM 23M, RM 40M, RM 48M, RM 60M
RM 1 A 23 M 25
Specifications are subject to change without notice (07.05.2002) 2-49
Input Specifications
RM23M, RM40M, RM48M, RM60M
General Specifications
Thermal Specifications
RM1...M25 RM1...M50 RM1...M75 RM1...M100
Operating temperature range -20° to 70°C -20° to 70°C -20° to 70°C -20° to 70°C
Storage temperature range -40° to 100°C -40° to 100°C -40° to 100°C -40° to 100°C
Junction temperature 125°C 125°C 125°C 125°C
Rth junction to case 0.80 K/W 0.50 K/W 0.35 K/W 0.30 K/W
Rth junction to ambient 20.0 K/W 20.0 K/W 20.0 K/W 15.0 K/W
Control voltage range 4.25-36 VDC
4.25-27 VAC
Absolute max. input voltage 37 VDC
28 VAC
Pick-up voltage 4.0 VDC
4.0 VAC
Drop out voltage 2.0 VDC
2.0 VAC
Input current
@ 5 VAC 10 mA
@ 24 VAC 18 mA
@ 5 VDC 9 mA
@ 24 VDC 12 mA
Response time pick-up max. 1cycle
Response time drop-out max.
2.5 cycle
RM1A23M RM1A40M RM1A48M RM1A60M
Operational voltage range 24 to 265 VACrms 42 to 440 VACrms 42 to 530 VACrms 42 to 660 VACrms
Non-rep. peak voltage 650 Vp850 Vp1200 Vp1400 Vp
Zero voltage turn-on 15 V 15 V 15 V 15 V
Operational frequency range 45 to 65 Hz 45 to 65 Hz 45 to 65 Hz 45 to 65 Hz
Power factor
> 0.5 @ 230 VACrms > 0.5 @ 400 VACrms > 0.5 @ 480 VACrms > 0.5 @ 600 VACrms
Approvals UL, CSA UL, CSA UL, CSA UL, CSA
CE-marking Yes Yes Yes Yes **
** Heatsink must be connected to ground
Weight
25 A, 50 A Approx. 60 g
75 A, 100 A Approx. 100 g
Housing material Noryl GFN 1, black
Baseplate
25 A, 50 A Aluminium
75 A, 100 A Copper, nickel-plated
Potting compound None
Relay
Mounting screws M5
Mounting torque 1.5-2.0 Nm
Control terminal
Mounting screws M3 x 9
Mounting torque 0.5 Nm
Power terminal
Mounting screws M5 x 9
Mounting torque 2.4 Nm
Housing Specifications
Rated insulation voltage 4000 VACrms
Input to output
Rated insulation voltage 4000 VACrms
Output to case
Insulation
2-50 Specifications are subject to change without notice (07.05.2002)
Output Specifications
RM1A..M25 RM1A..M50 RM1A..M75 RM1A..M100
Rated operational current
AC51 @ Ta=25°C 25 Arms 50 Arms 75 Arms 100 Arms
AC53a @ Ta=25°C 5 Arms 15 Arms 20 Arms 30 Arms
Min. operational current 150 mA 150 mA 150 mA 150 mA
Rep. overload current t=1 s < 55 AACrms < 125 AACrms < 150 AACrms < 200 AACrms
Non-rep. surge current t=10 ms 250 Ap 600 Ap 1000 Ap 1500 Ap
Off-state leakage current @
rated voltage and frequency < 3 mArms < 3 mArms < 3 mArms < 3 mArms
I2t for fusing t=1-10 ms < 310 A2s < 1800 A2s < 6600 A2s < 18000 A2s
Critical dI/dt 100 A/µs 100 A/µs 100 A/µs 100 A/µs
On-state voltage drop @ rated current 1.6 Vrms 1.6 Vrms 1.6 Vrms 1.6 Vrms
Critical dV/dt commutating 500 V/µs 500 V/µs 500 V/µs 500 V/µs
Critical dV/dt off-state min. 500 V/µs 500 V/µs 500 V/µs 500 V/µs
Zero crossing detection Yes Yes Yes Yes
Wiring Diagram
A1(+)
A2( - )
T1
L1
Dimensions
Functional Diagram
A1
++
A2
T1
L1
RM23M, RM40M, RM48M, RM60M
RM1A..M..
Control
input
Mains input/load output
load output/mains input
Specifications are subject to change without notice (07.05.2002) 2-51
Heatsink Dimensions (load current versus ambient temperature)
RM1...M25
2.70 2.34 1.98 1.61 1.25 0.89
3.10 2.69 2.28 1.86 1.45 1.04
3.61 3.13 2.65 2.18 1.70 1.23
4.26 3.70 3.14 2.59 2.03 1.47
5.14 4.47 3.80 3.14 2.47 1.80
6.38 5.56 4.73 3.91 3.09 2.27
8.25 7.19 6.14 5.08 4.02 2.97
11.4 9.94 8.49 7.04 5.59 4.14
17.7 15.4 13.2 11.0 8.74 6.51
- - - - 18.2 13.6
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
Load
current [A] Thermal resistance
[K/W]
TA
Ambient temp. [°C]
Power
dissipation [W]
28
24
21
18
15
12
9
7
4
2
20 30 40 50 60 70
RM1...M50
1.03 0.86 0.70 0.53 0.37 0.20
1.27 1.09 0.90 0.71 0.52 0.33
1.54 1.32 1.10 0.89 0.67 0.45
1.85 1.59 1.34 1.08 0.82 0.57
2.26 1.95 1.65 1.34 1.03 0.72
2.85 2.47 2.08 1.70 1.32 0.94
3.73 3.24 2.75 2.26 1.77 1.27
5.22 4.54 3.86 3.19 2.51 1.83
8.21 7.16 6.11 5.05 4.00 2.95
17.2 15.0 12.9 10.7 8.51 6.33
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
Load
current [A] Thermal resistance
[K/W]
TA
Ambient temp. [°C]
Power
dissipation [W]
61
53
46
39
33
26
20
15
10
5
20 30 40 50 60 70
RM1...M75 RM1...M100.
Junction to ambient thermal resistance, Rth j-a < 20.0 K/W
Junction to case thermal resistance, Rth j-c < 0.80 K/W
Case to heatsink thermal resistance, Rth c-s < 0.20 K/W
Maximum allowable case temperature 100 deg.C
Maximum allowable junction temperature 125 deg.C
Junction to ambient thermal resistance, Rth j-a < 20.0 K/W
Junction to case thermal resistance, Rth j-c < 0.50 K/W
Case to heatsink thermal resistance, Rth c-s < 0.20 K/W
Maximum allowable case temperature 100 deg.C
Maximum allowable junction temperature 125 deg.C
Junction to ambient thermal resistance, Rth j-a < 20.0 K/W
Junction to case thermal resistance, Rth j-c < 0.35 K/W
Case to heatsink thermal resistance, Rth c-s < 0.10 K/W
Maximum allowable heatsink temperature 100 deg.C
Maximum allowable junction temperature 125 deg.C
Junction to ambient thermal resistance, Rth j-a < 20.0 K/W
Junction to case thermal resistance, Rth j-c < 0.30 K/W
Case to heatsink thermal resistance, Rth c-s < 0.10 K/W
Maximum allowable heatsink temperature 100 deg.C
Maximum allowable junction temperature 125 deg.C
0.91 0.78 0.65 0.52 0.39 0.26
1.10 0.96 0.81 0.66 0.51 0.36
1.34 1.17 1.00 0.83 0.66 0.49
1.60 1.40 1.20 1.00 0.80 0.60
1.93 1.68 1.44 1.20 0.96 0.72
2.38 2.08 1.78 1.49 1.19 0.89
3.06 2.68 2.30 1.91 1.53 1.15
4.21 3.68 3.16 2.63 2.10 1.58
6.51 5.70 4.88 4.07 3.26 2.44
13.5 11.77 10.09 8.41 6.73 5.04
75.0
67.5
60.0
52.5
45.0
37.5
30.0
22.5
15.0
7.5
Thermal resistance
[K/W]
Load
current [A] Power
dissipation [W]
TA
Ambient temp. [°C]
77
68
59
50
42
34
26
19
12
6
20 30 40 50 60 70
0.54 0.45 0.36 0.27 0.18 0.09
0.68 0.58 0.47 0.37 0.27 0.17
0.86 0.74 0.62 0.50 0.38 0.26
1.08 0.94 0.80 0.66 0.52 0.38
1.37 1.20 1.03 0.85 0.68 0.51
1.70 1.49 1.28 1.06 0.85 0.64
2.21 1.93 1.66 1.38 1.10 0.83
3.06 2.68 2.30 1.91 1.53 1.15
4.78 4.18 3.59 2.99 2.39 1.79
9.98 8.73 7.49 6.24 4.99 3.74
Thermal resistance
[K/W]
Load
current [A] Power
dissipation [W]
TA
Ambient temp. [°C]
100.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
111
97
84
71
59
47
36
26
17
8
20 30 40 50 60 70
RM23M, RM40M, RM48M, RM60M
2-52 Specifications are subject to change without notice (07.05.2002)
RM23M, RM40M, RM48M, RM60M
Carlo Gavazzi Heatsink Thermal ...for power
(see Accessories) resistance... dissipation
No heatsink required --- N/A
RHS 300 5.00 K/W > 0 W
RHS 100 3.00 K/W > 25 W
RHS 45A 2.70 K/W > 60 W
RHS 45B 2.00 K/W > 60 W
RHS 90 1.35 K/W > 60 W
RHS 45A plus fan 1.25 K/W > 0 W
RHS 45B plus fan 1.20 K/W > 0 W
RHS 112 1.10 K/W > 100 W
RHS 301 0.80 K/W > 70 W
RHS 90 plus fan 0.45 K/W > 0 W
RHS 112 plus fan 0.40 K/W > 0 W
RHS 301 plus fan 0.25 K/W > 0 W
Consult your distribution > 0.25 K/W N/A
Infinite heatsink - No solution
--- N/A
Heatsink Selection
Fast-on terminals
All accessories can be ordered pre-assembled with Solid State Relays.
Other accessories include DIN rail adaptors, fuses, varistors and spacers.
For futher information refer to Accessories datasheets.
Fast-on tabs
Type R..F.
Screw mounted
fast-on terminals
Flat (0°) and angled (45°)
orientation
Input tab width: 4.8mm
• Output tab with: 6.3mm
Tab dimensions accord-
ing to DIN 46342 part 1
Pure tin-plated brass
RS, RM Solid State Relay
Fast-on terminals
Tab orientation
Ordering Key
RM1A48M25 F 4
*
0: Flat (0º)
4: Angled (45º)
*
Other Accessories
Heatsinks and fans
Type RHS....
0.25 to 5.00 k/W
Single and dual
relay types
Touch safety cover
Type RMIP20
IP20 protection degree
Pack size: 20 pieces