Catalog 1308242
Issued 3-03 (PDF Revised 3-09)
W54 series
Push To Reset Only
P&B Thermal Circuit Breaker
Insulation Resistance: 100 megohms.
Features
Maximum Operating Voltages: 50VDC; 250VAC .
5 to 40 amp ratings.
Interrupt Capacity: 1,000 amps in accordance with UL standard 1077.
Cannot be manually tripped.
Resettable Overload Capacity: Ten times rated current.
Button extends for visual trip indication.
Reset Time: 60 seconds.
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.
Typical Resistance vs. Current Rating @25C
Agency Approvals
Current Typical Current Typical
W54 series is UL 1077 Recognized as Supplementary Protectors, File
Rating Resistance Rating Resistance
E69543, for Canada and the United States. Available models meet
in Amps in Ohms in Amps in Ohms
Ignition Protection requirements in accordance with UL 1500
(excludes models rated >30A). CSA Accepted as Supplementary 5.0 0.050 15.0 0.017
Protectors (Appliance Component Protectors), File 240027 (to 6.0 0.042 20.0 0.012
125VAC, excludes models rated >30A). Approved to VDE 7.0 0.036 25.0 0.010
0642/EN60934 (Circuit Breakers for Equipment) License Number 8.0 0.031 30.0 0.008
40007877 (excludes models rated >20A, models with screw terminals, 10.0 0.025 35.0 0.007
models with silver-tin oxide contacts). CCC mark compliant, 12.0 0.021 40.0 0.006
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
Mechanical/Environmental Data
requirements for a given application.
Operating Temperature Range: 0C to +60C.
Termination: .250 (6.35mm) quick connects or #8-32 screws.
Electrical Data @ 25C
Mounting: Various options. See Ordering Information and drawings.
Calibration: Will continuously carry 100% of rating.
Approximate Weight: 0.9 oz. (25.0g).
May trip between 101% and 134%, but must trip at 135% of
rating within one hour at +25C.
Dielectric Strength: 1,500VAC (60 seconds).
Time vs. Current Trip Curve @ +25C
Outline Dimensions
1000 .118 DIA
.465 1.22 .157 MAX.
Overload Trip Times (3.0)
(11.8) (31.0)
(4.0)
CLOSED
100% No Trip
900
POSITION
135% Trip in 1 hour
200% 5.0 - 30.0 Sec.
800
300% 1.8 - 7.6 Sec.
.303
.846
1.378
400% 1.0 - 4.5 Sec.
(7.7)
(35.0) (21.5)
700
500% 0.6 - 3.0 Sec.
600% 0.4 - 2.2 Sec.
600
800% 0.2 - 1.2 Sec.
1000% 0.15 - 0.8 Sec.
SEE MOUNTING
500 SEE TERMINAL DRAWINGS
BUSHING AND
FOR DETAIL
MOUNTING HARDWARE
.031 .102
DRAWINGS FOR DETAIL
400
(.8) (2.6)
300
.575
(14.6)
200
135
100
Optional Protective Boot
0
.1 1 10 100 1000 10,000 Silicone rubber boot is bonded to integral alumimum nut.
Time In Seconds
1-1423696-5
.63 DIA.
Ambient Compensation Table Black boot for W54 with
(16.0)
3/8-24 bushing.
Ambient Rating Correction Factor
To use this chart: Divide the breaker .622
Temperature
(15.8)
rating by the correction factor to
in C 5-8A Models 9-30A Models
determine the compensated rating.
10 .90 .80
Calculate the overloads in terms of
20 .98 .90
the compensated rating to use the
1-1423696-6
.70 DIA.
25 1.00 1.00
published trip curve.
Clear boot for W54 with
(17.8)
30 1.10 1.05
Do not use these devices outside
M11 X 1.0 bushing.
40 1.25 1.15
their specified operating temperature
.799
50 1.61 1.31
ranges.
(20.3)
60 2.00 1.55
Revised 3-09 Dimensions are in inches over Dimensions are shown for reference USA: 1-800-522-6752 South America: 55-11-2103-6000
www.tycoelectronics.com (millimeters) unless otherwise purposes only. Specifications and Hong Kong: 852-2735-1628
Canada: 1-905-470-4425
1
specified. availability subject to change. Mexico: 01-800-733-8926 Japan: 81-44-844-8013
UK: 44-8706-080208
C. America: 52-55-1106-0803
Load Current As A Percent
Of Breaker RatingCatalog 1308242
Issued 3-03 (PDF Revised 3-09)
Ordering Information
Typical Part No. > W 54 -X B 1A4A1 0 -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, 3/8x24 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, 3/8x24 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.
Our authorized distributors are more likely to stock the following items for immediate delivery.
W54-XB1A4A10-5 W54-XB1A4A10-15 W54-XB1A4A10-25
W54-XB1A4A10-10 W54-XB1A4A10-20 W54-XB1A4A10-30
ORDERING NOTE:
Mounting hardware can be ordered separately. Some options are subject to extended leadtimes and significant minimum order quantities.
Termination Options
.098 .01
.181
(2.5 0.3) .181
(4.6)
(4.6)
Option H
Option A Option B Option C Option D Option E Option F
.250 QC Straight
Standard .250 QC #8-32 Screw Special .250 #8-32 Screw
with #8-32 Load
.250 QC 90 90 .250 QC QC/PCB 45
Straight 45 270 Term. Bent 90
Revised 3-09 Dimensions are in inches over Dimensions are shown for reference USA: 1-800-522-6752 South America: 55-11-2103-6000
www.tycoelectronics.com (millimeters) unless otherwise purposes only. Specifications and Canada: 1-905-470-4425 Hong Kong: 852-2735-1628
2
specified. availability subject to change. Mexico: 01-800-733-8926 Japan: 81-44-844-8013
C. America: 52-55-1106-0803 UK: 44-8706-080208