Electronics Catalog 1309286 W54 Series Thermal Circuit Breakers Issued 4-02 Economical, Push-to-Reset Only Thermal Circuit Breaker Agency Approvals W54 series (except 35A and 40A models) is UL 1077 Recognized as Supplementary Protectors, File E69543, for Canada and the United States. Users should thoroughly review the technical data before selecting a product part number. It is recommended that users also sek out the pertinent approvals files of the agencies/laboratories and review them to ensure the product meets the requirements for a given application. Typical Resistance vs. Current Rating @ +25 C Features * New, economical design. * 5 to 40 amp ratings. (35A and 40A models will not be submitted for UL/CSA). * Cannot be manually tripped. * Button extends for visual trip indication. * Push button to reset breaker. * Numerous mounting and termination options. Current Rating in Amps Typical Resistance in Ohms Current Rating in Amps Typical Resistance in Ohms 5.0 6.0 7.0 8.0 10.0 12.0 0.050 0.042 0.036 0.031 0.025 0.021 15.0 20.0 25.0 30.0 35.0 40.0 0.017 0.012 0.010 0.008 0.007 0.006 Electrical Data @ 25C Calibration: Will continuously carry 100% of rating. May trip between 101% and 134%, but must trip at 135% of rating within one hour at +25C. Dielectric Strength: 1,500VAC (60 seconds). Insulation Resistance: 100 megohms. Maximum Operating Voltages: 50VDC; 125 or 250VAC (model dependent). Interrupt Capacity: 1,000 amps in accordance with UL standard 1077. Resettable Overload Capacity: Ten times rated current. Reset Time: 60 seconds. Mechanical/Environmental Data Operating Temperature Range: 0C to +60C. Termination: .250" (6.35mm) quick connects or #8-32 screws. Mounting: Various options. See Ordering Infomation and drawings. Approximate Weight: 0.9 oz. (25.0g). Outline Dimensions Time vs. Current Trip Curve @ +25C 1000 Overload Trip Times 100% No Trip 135% Trip in 1 hour 200% 5.0 - 40.0 Sec. 300% 1.8 - 7.6 Sec. 400% 1.0 - 4.5 Sec. 500% 0.6 - 3.0 Sec. 600% 0.4 - 2.2 Sec. 900 Load Current As A Percent Of Breaker Rating 800 700 600 .118 DIA (3.0) 1.378 (35.0) .465 (11.8) .846 (21.5) 500 SEE TERMINAL DRAWINGS FOR DETAIL .031 .102 (.8) (2.6) 400 300 1.22 (31.0) .638 (16.2) .303 (7.7) SEE MOUNTING BUSHING AND MOUNTING HARDWARE DRAWINGS FOR DETAIL .575 (14.6) 200 135 100 0 .1 1 10 100 1000 10,000 Time In Seconds Ambient Compensation Table Ambient Temperature in C 10 20 25 30 40 50 60 Rating Correction Factor .90 .98 1.00 1.10 1.25 1.61 2.00 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. 1 Dimensions are shown for reference purposes only. Dimensions are in inches over (millimeters) unless otherwise specified. Specifications subject to change. Technical support: 1-800-522-6752 http://relays.tycoelectronics.com Catalog 1309286 W54 Series Thermal Circuit Breakers Electronics Issued 4-02 Ordering Information Typical Part No. B W 54 -X B 1 A 4 A 1 0 -5 1. Designator: W = Circuit breaker 2. Series Number: 54 = Economical, Single Pole, Push-to-Reset, Thermal Model 3. Circuit Function: X = Series Trip 4. Button: A = White, plain, no rate marking C = White with black rate marking (vertical) B = White with red rate marking (vertical) 5. Mounting Bushing: 1 = 9.8mm x 12.6mm long, metal 2 = 3/8" (one side flat) x 10mm) long, metal 7 = 3/8" (one side flat) x 10mm) long, plastic 6. Terminals: A = Quick connect .250" (6.35mm) straight B = Quick connect .250" (6.35mm) bent 90 C = #8-32 screw 90 (screws installed) 7. Mounting Hardware: 4 = Metal knurled nut/hex nut 5 = Plastic knurled nut 8. Mounting Hardware Packaging: A = Assembled to bushing 12 = Metal knurled nut B = Bulk unassembled 99 = None C = No mounting hardware 9. Maximum AC Operating Voltage: 1 = 250VAC 10. Nameplate: 0 = None 11. Specify Amp Rating: 5 7 10 6 8 12 15 20 25 30 35* 40* *Not UL or CSA We recommend that our authorized distributors stock the following items for immediate delivery. W54-XB1A4A10-5 W54-XB1A4A10-6 W54-XB1A4A10-7 W54-XB1A4A10-15 W54-XB1A4A10-20 W54-XB1A4A10-25 W54-XB1A4A10-8 W54-XB1A4A10-10 W54-XB1A4A10-12 W54-XB1A4A10-30 W54-XC4C12A10-5 W54-XC4C12A10-10 W54-XC4C12A10-30 W54-XC4C12A10-15 W54-XC4C12A10-20 W54-XC4C12A10-25 Mounting Bushings and Recommended Panel Cutouts .630.005 (16.13) .441+.008, -.0 (11.2+.2, -.0) .157 (4.0) .543.005 (13.8.13) .059 (1.5) .382 +.008, -.0 (9.7 +.2, -.0) .496 (12.6) .394 (10.0) Standard Option 2 - 3/8" - 24UNF Thread Special Order - M11 X 1.0 Thread .630.005 (16.13) .441+.008, -.0 (11.2+.2, -.0) .059 (1.5) .543.005 (13.8.13) .425 (10.8) .496 (12.6) Optional Nameplates .098 .01 (2.5 0.3) Standard .250 QC 90 Special .250 QC 270 .551 DIA. (14.0) Special Standard #8-32 Screw #8-32 Screw 45 90 .740 DIA. (18.8) .740 DIA. (18.8) 2 X .059 DIA. (1.5) 2 .102 (2.6) .079 (2.0) .126 (3.2) Standard Knurled Nut Standard Hex Nut Special Integrated Knurled Nut Specifications and availability subject to change without notice. 1309286 - 5M - XXX - DSP - 4/02 Printed in U.S.A. .854 DIA. (21.7) .945 DIA. (24.0) .016 (.4) THICK .016 (.4) THICK Special Embossed Aluminum Special Silver Printing On Black .181 (4.6) Mounting Hardware Options .590 DIA. (15.0) Special Order - M12 X 1.0 Thread Standard Option 1 - M11 X 1.0 Thread .181 (4.6) Special .250 QC 45 .433 +.008, -.0 (11.0 +.2, -.0) .496 (12.6) Termination Options Standard .250 QC Straight .480 +.008, -.0 (12.2 +.2, -.0) .157 (4.0) .394+.008, -.0 (10.0+.2, -.0) .386 (9.8) Special Order - Snap In Option II .346 +.008, -.0 (8.8 +.2, -.0) .394+.008, -.0 (10.0+.2, -.0) .386 (9.8) Special Order - Snap In Option I .346 (8.8) 84 56 .126 (3.2) Special Integrated Knurled Nut with Small Holes ORDERING NOTE: Many options illustrated here are not listed in the "Ordering Information" chart above. Options denoted by "Special" or "Special Order" in their descriptions are only offered on a special order basis. They are subject to extended leadtimes and significant minimum order quantities. Your Tyco Electronics sales engineer must consult with the factory before providing price and availability information regarding items with these options. (c) 2002 by Tyco Electronics Corporation. All Rights Reserved. P&B and TYCO are trademarks. Tyco Electronics Corporation Harrisburg, PA 17105