1423674-5

## **POTTER & BRUMFIELD W54 SERIES** 

## PUSH TO RESET ONLY P&B THERMAL CIRCUIT BREAKER 

## FEATURES 

- 5 to 40 amp ratings. 

- Push button to reset breaker. Cannot be manually tripped. 

- Button extends for visual trip indication. 

- Numerous mounting and termination options. 

- Optional bottom marking of amperage rating. 

## APPROVALS 

- UL/cUL: Recognized with UL 1077 (Supplementary Protectors for Use in Electrical Equipment), File E69543 (excludes models rated >35A). 

- VDE: Approved to DIN EN IEC 60934/VDE 0642 (Circuit Breaker for Equipment), Certificate No. 40059799 and 40007877 (for AC loads only). 

- CCC: Approved to GB/T 17701, Certificate No. 2024010307738240 and 2004010307123217 (for AC loads only). 

## Z 

## **ELECTRICAL DATA @ 25°C** 

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1000<br>Will continuously carry 100% of  Overload Trip Times<br>Calibration rating. May trip between 101% and  900 OE) | 100%135% Trip in 1 hourNo Trip<br>134%, but must trip at 135% of  800 ee 200% 5.0 - 30.0 Sec.<br>rating within one hour at +25°C. 300%  1.8 - 7.6 Sec.<br>400%  1.0 - 4.5 Sec.<br>700 ALA<br>Dielectric Strength 1,500VAC (60 seconds) 500% 0.6 - 3.0 Sec.<br>Insulation Resistance 100 megohms 600 a CT ETT 600%800% 0.4 - 2.2 Sec.0.2 - 1.2 Sec.<br>1000% 0.15 - 0.8 Sec.<br>Maximum Operating  500 | SN<br>50VDC; 250VAC<br>Voltages 400<br>Eh,SO<br>Interrupt Capacity 1,000 amps in accordance  300 PIE ETE<br>with UL standard 1077<br>200 TIETSTTIE TU<br>Resettable Overload  135 ee<br>Ten times rated current 100 TT [TTT] nT Seeaia eeerr SS |<br>Capacity a<br>Reset Time 60 seconds 0 .1 1 1 0 100 1000 10,000<br>Time In Seconds<br>Of Breaker Rating<br>Load Current As A Percent<br>**----- End of picture text -----**<br>


**Note:** 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. 

**POTTER & BRUMFIELD W54 SERIES** Thermal Circuit Breaker 

## **TYPICAL RESISTANCE VS. CURRENT RATING @25°C** 

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Current  Typical  Current  Typical<br>Rating in  Resistance  Rating  Resistance<br>Amps in Ohms in Amps in Ohms<br>**----- End of picture text -----**<br>


|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|



## **MECHANICAL/ENVIRONMENTAL DATA** 

|Operating Temperature Range|0°C to +60°C|
|---|---|
|Termination|.250in (6.35mm) quick<br>connects or #8-32 screws|
|Mounting Various options.|See Ordering Information<br>and drawings|
|Approximate Weight|0.9 oz. (25.0g)|



## **AMBIENT COMPENSATION TABLE** 

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Ambient  Rating Correction Factor<br>Temperature<br>in °C 5-8A Models 9-30A Models<br>**----- End of picture text -----**<br>


|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|



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. 

## **OUTLINE DIMENSIONS** 

## **OPTIONAL PROTECTIVE BOOT** 

Silicone rubber boot is bonded to integral metal nut. 

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1-1423696-5<br>Black boot for W54 with<br>3/8inch-24 bushing.<br>1-1423696-6<br>Clear boot for W54 with<br>M11 X 1.0 bushing.<br>1-1423000-1<br>Clear boot for W54 with<br>M11 X 1.0 bushing.<br>**----- End of picture text -----**<br>


## **MOUNTING BUSHINGS AND RECOMMENDED PANEL CUTOUTS** 

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.338<br>.441+.008, -.0 (8.6) .346 +.008, -.0 .441+.008, -.0<br>(11.2+.2, -.0) (8.8 +.2, -.0) (11.2+.2, -.0)<br>.047 .043 .157<br>(1.2) (1.1) (4.0)<br>.386 .394+.008, -.0 .382 +.008, -.0 .386 .394+.008, -.0<br>(9.8) (10.0+.2, -.0) (9.7 +.2, -.0) (9.8) (10.0+.2, -.0)<br>.496 .394 .496<br>(12.6) (10.0) (12.6)<br>Option 1  – M11 X 1.0 Thread Option 2 & 7 – 3/8in - 24UNF Thread Option 3 & 6 – M11 X 1.0 Thread<br>.480 +.008, -.0<br>(12.2 +.2, -.0) .630.005<br>.157 (16.13)<br>(4.0)<br>.543.005<br>.413 .421 +.008, -.0 (13.8.13)<br>(10.5) (10.7 +.2, -.0)<br>.496<br>(12.6)<br>Option 4  – M12 X 1.0 Thread Option 8 – Snap In<br>**----- End of picture text -----**<br>


INDUSTRIAL AUTOMATION AND ELECTRIFICATION / W54 SERIES 

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**POTTER & BRUMFIELD W54 SERIES** Thermal Circuit Breaker 

## **TERMINATION OPTIONS** 

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.098 ± .01<br>.181<br>(2.5± 0.3) .181<br>(4.6)<br>(4.6)<br>Option A  Option B Option C Option D Option E Option F<br>Standard .250 QC #8-32 Screw Special .250 QC/ #8-32 Screw<br>.250 QC 90° 90° .250 QC PCB 45°<br>Straight 45° 270°<br>MOUNTING HARDWARE OPTIONS  NAMEPLATES<br>ALTERNATE TEETH TWISTED<br>A A A IN OPPOSITE DIRECTIONS (21.7) (24.0)<br> 2 X .059 DIA.<br> (1.5)<br>A<br>B B 84° 56° B B .016 (.4) THICK .016 (.4) THICK<br>Embossed Imprinted Aluminum<br>Knurled Nut Hex Nut Integrated Knurled Nut Lockwasher Aluminum (Either Silver on Black<br>with Small Holes or Black on Silver)<br>**----- End of picture text -----**<br>


## **MOUNTING HARDWARE DIMENSIONS** 

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Integrated Plastic<br>Dimension  Bushing  Plastic Knurled  Metal Knurled<br>Knurled Nut w/ Metal Hex Nut Lockwasher<br>Code Diameter Nut Nut<br>Holes<br>**----- End of picture text -----**<br>


|**Dimension**<br>**Code**|**Bushing**<br>**Diameter**|**Plastic Knurled**<br>**Nut**<br>|**Integrated Plastic**<br>**Knurled Nut w/**<br>**Holes**|**Metal Knurled**<br>**Nut**|**Metal Hex Nut**|**Lockwasher**|
|---|---|---|---|---|---|---|
||||||||
|A|3/8in|.74 (18.8)|–|.56 (14.2)|.55 (14.0)|.49 (12.5)|
||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)|
|B|3/8in|.126 (3.2)|–|.079 (2.0)|.079 (2.0)|.02 (.5)|
||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 HARDWARE ORDERING INFORMATION** 

|**Dimension**<br>**Code**|**Bushing**<br>**Diameter**|**Plastic Knurled**<br>**Nut**<br>|**Integrated Plastic**<br>**Knurled Nut w/**<br>**Holes**|**Metal Knurled**<br>**Nut**|**Metal Hex Nut**|**Lockwasher**|
|---|---|---|---|---|---|---|
|Metal|1 (M11)|–|–|6-1423730-3|6-1423730-7|1-1423696-2|
||2 (3/8in)|–|–|6-1423730-4|6-1423730-6|1-1423696-1|
||4 (M12)|–|–|6-1423730-5|6-1423730-8|1-1423696-3|
|Plastic|6 (M11)|1423696-8|2-1423696-2|–|–|–|
||8 (3/8in)|1423696-2|–|–|–|–|



ORDERING NOTE: 

Mounting hardware can be ordered separately. Some options are subject to extended leadtimes and significant minimum order quantities. 

INDUSTRIAL AUTOMATION AND ELECTRIFICATION / W54 SERIES 

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## **PRODUCT CODE STRUCTURE** 

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Typical product code<br>W  54  -X  B  1  A  4  A  1  0  -5<br>Designator Specify Amp Rating<br>W Circuit breaker 5 10 25†<br>6 12 30†<br>Series Number 7 15 35†<br>54 Single pole, push-to-reset, thermal model 8 20 40†<br>† not UL/cUL<br>Nameplate<br>Circuit Function & Contact Material<br>0 None<br>Series trip, silver-cadmium oxide contacts<br>X 1 Embossed aluminum<br>(VDE covers up to 20A, CCC covers up to 30A)<br>F Series trip, silver-tin oxide contacts 2 Silver color printing on black<br>3 Black printing on silver color<br>Number of NC contact configurations  Maximum Operating Voltage<br>A White, plain, no rate marking 1 250VAC / 50VDC*<br>B White with rate marking (vertical) 2 125VAC / 50VDC*<br>D Black, plain, no rate marking *DC rating apply to UL only<br>E Black with rate marking (horizontal)<br>F White with rate marking (horizontal) Mounting Hardware Packaging<br>H Black with rate marking (vertical) A Assembled to bushing<br>I Red, plain, no rate marking B Bulk unassembled<br>C No mounting hardware<br>Mounting Bushing<br>Mounting Hardware<br>Metal<br>9.8mm (double D) x 12.6mm long, M11x1  Metal<br>1<br>threads, hex base 4 Knurled nut/hex nut<br>3/8in (single D) x 10mm long, 3/8inx24  6 Hex nut<br>2<br>threads, hex base 12 Knurled nut<br>9.8mm (double D) x 12.6mm long, M11x1  15 Two hex nuts and one lockwasher<br>3<br>threads, round base 18 One hex nut and one lockwasher<br>4 10.5mm (double D) x 12.6mm long, M12x1  Plastic<br>threads, round base 7 Knurled nut<br>Plastic 8 Knurled nut with small hole<br>6 9.8mm (double D) x 12.6mm long, M11x1  22 Knurled nut, metal lockwasher<br>threads, round base 99 None<br>3/8in (single D) x 10mm long, 3/8inx24<br>7<br>threads, hex base Terminals<br>8 Snap-in type<br>A Quick connect .250in (6.35mm), straight<br>Codes 1, 3 and 5 are similar in size to 7/16in bushings (not exact  B Quick connect .250in (6.35mm), bent<br>equivalent). 90°<br>Code 4 is similar in size to a 15/32in bushing (not exact  C #8-32 screw, bent 90° (screws installed)<br>equivalent)<br>Quick connect .250in (6.35mm), bent<br>D<br>45°<br>Quick connect .250in (6.35mm), bent<br>E<br>90° opposite<br>F #8-32 screw, bent 45° (screws installed)<br>**----- End of picture text -----**<br>


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07/25   ED 

INDUSTRIAL AUTOMATION AND ELECTRIFICATION / W54 SERIES