1
Catalog 1308242
Issued 3-03 (PDF Revised 3-09)
Revised 3-09
www.tycoelectronics.com
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Dimensions are shown for reference
purposes only. Specifications and
availability subject to change.
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080208
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
Agency Approvals
W54 series is UL 1077 Recognized as Supplementary Protectors, File
E69543, for Canada and the United States. Available models meet
Ignition Protection requirements in accordance with UL 1500
(excludes models rated >30A). CSA Accepted as Supplementary
Protectors (Appliance Component Protectors), File 240027 (to
125VAC, excludes models rated >30A). Approved to VDE
0642/EN60934 (Circuit Breakers for Equipment) License Number
40007877 (excludes models rated >20A, models with screw terminals,
models with silver-tin oxide contacts). CCC mark compliant,
certificate 2004010307123217.
Users should thoroughly review the technical data before selecting a product part
number. It is recommended that users also seek out the pertinent approvals files of
the agencies/laboratories and review them to confirm the product meets the
requirements for a given application.
Time vs. Current Trip Curve @ +25°C
Overload Trip Times
100%
135%
200%
300%
400%
500%
600%
800%
1000%
No Trip
Trip in 1 hour
5.0 - 30.0 Sec.
1.8 - 7.6 Sec.
1.0 - 4.5 Sec.
0.6 - 3.0 Sec.
0.4 - 2.2 Sec.
0.2 - 1.2 Sec.
0.15 - 0.8 Sec.
.1 1 10 100 1000
Time In Seconds
1000
900
800
700
600
500
400
300
200
100
0
Load Current As A Percent
Of Breaker Rating
10,000
135
Features
• 5 to 40 amp ratings.
• Cannot be manually tripped.
• Button extends for visual trip indication.
• Push button to reset breaker.
• Numerous mounting and termination options.
• Choice of silver-cadmium oxide or silver-tin oxide contacts.
• Optional bottom marking of amperage rating.
Electrical Data @ 25°C
Calibration: Will continuously carry 100% of rating.
May trip between 101% and 134%, but must trip at 135% of
rating within one hour at +25°C.
Dielectric Strength: 1,500VAC (60 seconds).
Mechanical/Environmental Data
Operating Temperature Range: 0°C to +60°C.
Termination: .250” (6.35mm) quick connects or #8-32 screws.
Mounting: Various options. See Ordering Information and drawings.
Approximate Weight: 0.9 oz. (25.0g).
Current Typical Current Typical
Rating Resistance Rating Resistance
in Amps in Ohms in Amps in Ohms
5.0 0.050 15.0 0.017
6.0 0.042 20.0 0.012
7.0 0.036 25.0 0.010
8.0 0.031 30.0 0.008
10.0 0.025 35.0 0.007
12.0 0.021 40.0 0.006
.465
(11.8)
1.22
(31.0)
.846
(21.5)
SEE TERMINAL DRAWINGS
FOR DETAIL
1.378
(35.0)
.575
(14.6)
.157 MAX.
(4.0)
CLOSED
POSITION
SEE MOUNTING
BUSHING AND
MOUNTING HARDWARE
DRAWINGS FOR DETAIL
.303
(7.7)
.102
(2.6)
.031
(.8)
.118 DIA
(3.0)
Outline Dimensions
Typical Resistance vs. Current Rating @25°C
Insulation Resistance: 100 megohms.
Maximum Operating Voltages: 50VDC; 250VAC .
Interrupt Capacity: 1,000 amps in accordance with UL standard 1077.
Resettable Overload Capacity: Ten times rated current.
Reset Time: 60 seconds.
W54 series
Push To Reset Only
P&B Thermal Circuit Breaker
Ambient Compensation Table
To use this chart: Divide the breaker
rating by the correction factor to
determine the compensated rating.
Calculate the overloads in terms of
the compensated rating to use the
published trip curve.
Do not use these devices outside
their specified operating temperature
ranges.
Ambient Rating Correction Factor
Temperature
in °C 5-8A Models 9-30A Models
10 .90 .80
20 .98 .90
25 1.00 1.00
30 1.10 1.05
40 1.25 1.15
50 1.61 1.31
60 2.00 1.55
Optional Protective Boot
Silicone rubber boot is bonded to integral alumimum nut.
1-1423696-5
Black boot for W54 with
3/8”-24 bushing.
1-1423696-6
Clear boot for W54 with
M11 X 1.0 bushing.
.63 DIA.
(16.0)
.622
(15.8)
.799
(20.3)
.70 DIA.
(17.8)
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Catalog 1308242
Issued 3-03 (PDF Revised 3-09)
Revised 3-09
www.tycoelectronics.com
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Dimensions are shown for reference
purposes only. Specifications and
availability subject to change.
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080208
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
Our authorized distributors are more likely to stock the following items for immediate delivery.
Termination Options
.181
(4.6) .181
(4.6)
.098 ± .01
(2.5 ± 0.3)
Option A
Standard
.250 QC
Straight
Option D
Special
.250 QC
45°
Option B
.250 QC
90°
Option E
.250
QC/PCB
270°
Option F
#8-32 Screw
45°
Option C
#8-32 Screw
90°
Ordering Information
Typical Part No. > W54-XB1A4A10-5
1. Designator:
W = Circuit breaker
2. Series Number:
54 = Single pole, push-to-reset, thermal model
3. Circuit Function & Contact Material:
X = Series trip, silver-cadmium oxide contacts
F = Series trip, silver-tin oxide contacts † †Not VDE
4. Button Color & Rate Marking:
A = White, plain, no rate marking
B = White with red rate marking (vertical)
C = White with black rate marking (vertical)
D = Black, plain, no rate marking
E = Black with white rate marking (horizontal)
F = White with red rate marking (horizontal)
G = White with black rate marking (horizontal)
H = Black with white rate marking (vertical)
I = Red, plain, no rate marking
J = Black, no rate marking on button, white rate marking
on bottom of case between terminals.
5. Mounting Bushing:
1 = Metal, 9.8mm (double D) x 12.6mm long, M11x1 threads, (similar to 7/16”), round base
2 = Metal, 3/8” (single D) x 10mm long, 3/8”x24 threads, hex base
3 = Metal, 9.8mm (double D) x 12.6mm long, M11x1 threads, (similar to 7/16”), hex base
4 = Metal, 10.5mm (double D) x 12.6mm long, M12x1 threads, (similar to 15/32”), round base
6 = Plastic, 9.8mm (double D) x 12.6mm long, M11x1 threads, (similar to 7/16”), round base
7 = Plastic, 3/8” (single D) x 10mm long, 3/8”x24 threads, hex base
8 = Plastic, snap-in type
Notes: Codes 1, 3 and 6 are similar in size to 7/16” bushings (not exact equivalent).
Code 4 is similar in size to a 15/32” bushing (not exact equivalent)
6. Terminals:
A = Quick connect .250” (6.35mm), straight
B = Quick connect .250” (6.35mm), bent 90°
C = #8-32 screw, bent 90° (screws installed) †
D = Quick connect .250” (6.35mm), bent 45°
E = Quick connect .250” (6.35mm), bent 90° opposite
F = #8-32 screw, bent 45° (screws installed)
G = QC .250” (6.35mm) and #8-32 screw, bent 90° (screw installed) †Not VDE
7. Mounting Hardware:
4 = Metal, knurled nut/hex nut 7 = Plastic, knurled nut
6 = Metal, hex nut 8 = Plastic, knurled nut with small hole
12 = Metal, knurled nut 22 = Plastic knurled nut, metal lockwasher
15 = Metal, two hex nuts and one lockwasher
18 = Metal, one hex nut and one lockwasher 99 = None
8. Mounting Hardware Packaging:
A = Assembled to bushing B = Bulk unassembled C = No mounting hardware
9. Maximum Operating Voltage:
1 = 250VAC 2 = 125VAC / 50VDC
10. Nameplate:
0 = None 2 = Silver color printing on black
1 = Embossed aluminum 3 = Black printing on silver color
11. Specify Amp Rating:
5 7 10 15 25† 35*†‡
6 8 12 20 30† 40*†‡ *UL1077, but not UL1500 †Not VDE ‡Not CSA
12. UL Recognition:
Leave Blank = UL1077 recognized breaker
M = Model meeting Ignition Protection requirements in accordance with UL 1500, in addition to UL1077 recognition (not available with models >30A rating.)
Code M breakers are not VDE approved or CSA certified.
W54-XB1A4A10-5
W54-XB1A4A10-10
W54-XB1A4A10-15
W54-XB1A4A10-20
W54-XB1A4A10-25
W54-XB1A4A10-30
ORDERING NOTE:
Mounting hardware can be ordered separately. Some options are subject to extended leadtimes and significant minimum order quantities.
Option H
.250 QC Straight
with #8-32 Load
Term. Bent 90°
Catalog 1308242
Issued 3-03 (PDF Revised 3-09)
.854 DIA.
(21.7)
.945 DIA.
(24.0)
.016 (.4) THICK .016 (.4) THICK
Nameplates
Embossed
Aluminum
Imprinted Aluminum
(Either Silver on Black
or Black on Silver)
Mounting Hardware Dimensions
Mounting Hardware Ordering Information
Dimension Bushing Plastic Integrated Plastic Metal Metal Lockwasher
Code Diameter Knurled Nut Knurled Nut w/Holes Knurled Nut Hex Nut
3/8” .74 (18.8) – .56 (14.2) .55 (14.0) .49 (12.5)
A M11 .74 (18.8) .74 (18.8) .59 (15.0) .55 (14.0) .587 (14.9)
M12 – – .59 (15.0) .55 (14.0) .626 (15.9)
3/8” .126 (3.2) – .079 (2.0) .079 (2.0) .02 (.5)
B M11 .126 (3.2) .13 (3.3) .102 (2.6) .118 (3.0) .02 (.5)
M12 – – .102 (2.6) .079 (2.0) .02 (.5)
Mounting Bushing Mounting Bushing Plastic Integrated Plastic Metal Metal Lockwasher
Material Code Knurled Nut Knurled Nut w/Holes Knurled Nut Hex Nut
1 (M11) – – 1423696-4 1423696-6 1-1423696-2
Metal 2 (3/8”) – – 1-1423696-0 1423696-3 1-1423696-1
3 (M11) – – 1423696-4 1423696-6 1-1423696-2
4 (M12) – – 1423696-5 1423696-7 1-1423696-3
Plastic 6 (M11) 1423696-8 2-1423696-2 – – –
8 (3/8”) 1423696-2 – – – –
A
B
A
B
Mounting Bushings and Recommended Panel Cutouts
Knurled Nut Hex Nut
2 X .059 DIA.
(1.5)
84° 56°
ALTERNATE TEETH TWISTED
IN OPPOSITE DIRECTIONS
B
A
A
B
Integrated Knurled Nut
with Small Holes
Lockwasher
Mounting Hardware Options
.413
(10.5)
.496
(12.6)
.157
(4.0)
.394
(10.0)
.043
(1.1)
.338
(8.6)
.496
(12.6)
.047
(1.2)
.386
(9.8)
.496
(12.6)
.157
(4.0)
.386
(9.8)
.543.005
(13.8.13)
.630.005
(16.13)
.394+.008, -.0
(10.0+.2, -.0)
.441+.008, -.0
(11.2+.2, -.0)
.394+.008, -.0
(10.0+.2, -.0)
.441+.008, -.0
(11.2+.2, -.0)
.382 +.008, -.0
(9.7 +.2, -.0)
.346 +.008, -.0
(8.8 +.2, -.0)
.421 +.008, -.0
(10.7 +.2, -.0)
.480 +.008, -.0
(12.2 +.2, -.0)
Option 3 & 6 – M11 X 1.0 Thread
Option 2 & 7 – 3/8” - 24UNF Thread
Option 8 – Snap In
Option 1 – M11 X 1.0 Thread
Option 4 – M12 X 1.0 Thread
3
Revised 3-09
www.tycoelectronics.com
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Dimensions are shown for reference
purposes only. Specifications and
availability subject to change.
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080208
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
Optional Bottom Marking of Rating
© 2009 by Tyco Electronics Corporation. All Rights Reserved.
P&B, TE logo and Tyco Electronics are trademarks.
