Catalog 1308242 Potter & Brumfield Issued 3-03 (PDF Rev. 08-13) W51 series Rocker-Actuated Thermal Circuit Breaker/Power Switch With Optional Indicator Lamp Interrupt Capacity: 1,000 amps in accordance with UL standard 1077. Features Resettable Overload Capacity: Ten times rated current. • Compact, trip-free, rocker-actuated design. Switch Endurance Cycling: Typically 6,000 operations at 100% of rating. • 5 to 20 amp ratings. Reset Time: 60 seconds. • Provides circuit protection and power switching in a single unit. • Available with optional indicator lamp. • Snaps into the same cutout as many common power switches. • Various color, marking and termination options. Typical Resistance vs. Current Rating @ +25°C Agency Approvals W51 series is UL 1077 Recognized as Supplementary Protectors, Current Typical Current Typical File E69543, for Canada and the United States. Approved to VDE Rating Resistance Rating Resistance 0642/EN60934 (Circuit Breakers for Equipment) License Number in Amps in Ohms in Amps in Ohms 40017023 (for AC loads only). CCC mark compliant, certificate 5.0 0.050 10.0 0.025 2004010307123223. 6.0 0.042 15.0 0.017 7.0 0.036 20.0 0.0125 Users should thoroughly review the technical data before selecting a product part 8.0 0.031 number. It is recommended that users also seek out the pertinent approvals files of the agencies/laboratories and review them to ensure the product meets the requirements for a given application. Electrical Data @ 25°C Mechanical/Environmental Data Calibration: Will continuously carry 100% of rating. Operating Temperature Range: 0°C to +60°C for 10-20A models May trip between 101% and 134%, but must trip at 135%* of rating 0°C to +50°C for 5-8A models within one hour at +25°C. * 150% for 5-8A models Termination: .250” (6.35mm) quick connects, solder terminals or right angle PC Dielectric Strength: 1,500VAC (60 seconds). terminals. Insulation Resistance: 100 megohms. Mounting: Snaps into 1.122 x .531 (28.5 x 13.5) panel cutout. Maximum Operating Voltages: 50VDC; 125 or 250VAC, 50/60 Hz. (model Approximate Weight: 0.37 oz. (10.5g). dependent). Time vs. Current Trip Curve @ +25°C Outline Dimensions 1000 Overload Trip Times 100% No Trip 900 135% Trip in 1 hour 200% 4.0 - 40.0 Sec. 800 300% 1.2 - 12.0 Sec. 400% 0.6 - 5.0 Sec. 700 500% 0.4 - 2.8 Sec. 600% 0.3 - 1.8 Sec. 600 500 400 300 200 135 100        0 .1 1 10 100 1000 10,000 Time In Seconds Ambient Compensation Table Recommended Panel Cutout Ambient Rating Correction Factor To use this chart: Divide the Temperature SUGGESTED .531 breaker rating by the correction in °C 5-8A Models 10-20A Models PANEL CUTOUT (13.5) factor to determine the 10 .80 .80 compensated rating. Calculate 20 .90 .90 the overloads in terms of the 1.122 25 1.00 1.00 compensated rating to use the (28.5) 30 1.10 1.05 published trip curve. 40 1.25 1.15 Panel Thickness Do not use these devices 50 1.61 1.25 W51 series circuit breakers accommodate panel thicknesses outside their specified operating 60 1.40 from 0.030 in. to 0.118 in. (0.75 mm - 3.0 mm). temperature ranges. Revised 04-17 Dimensions are in inches over Dimensions are shown for reference USA: 1-800-522-6752South America: 55-11-2103-6000 www.te.com(millimeters) unless otherwise purposes only. Specifications and Canada: 1-905-470-4425 Hong Kong: 852-2735-1628 112 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 Load Current As A Percent Of Breaker Rating Catalog 1308242 Potter & Brumfield Issued 3-03 (PDF Rev. 08-13) Ordering Information Typical Part No. > W 51 -A 1 2 1 B 1 -5 1. Designator: W = Circuit breaker 2. Series Number: 51 = Switchable, Single Pole, Rocker-Actuated Thermal Model 3. Terminals: A = Quick connect .250” (6.35mm) straight C = Printed Circuit - right angle 4. Breaker Style & Base Color: 1 = Angular button design (see drawing below), black base color B = Countoured button design (see drawing below), black base color 5. Rocker Color: 1 = Amber (translucent) 2 = Red (translucent) 3 = Green (translucent) 4 = White (opaque - for use on non-illuminated models) 5 = Black (opaque - for use on non-illuminated models) 6 = Red (opaque - for use on non-illuminated models) 7 = Gray (opaque - for use on non-illuminated models) 8 = Black (opaque) with red (translucent) indicator (only available on model with contoured button) 9 = Black (opaque) with green (translucent) indicator (only available on model with contoured button) 6. Maximum Operating Voltage (AC): 1 = 125VAC 2 = 250VAC 7. Light: A = Non-illuminated B = Illuminated 8. Marking option: 0 = No marking 2 = RESET/OFF molded (only available on model with contoured button) 1 = RESET/OFF printed 9. Specify Amp Rating: 5 6 7 8 10 15 20 Our authorized distributors are more likely to stock the following items for immediate delivery. W51-A121B1-5 W51-A121B1-15 W51-A122B1-5 W51-A122B1-15 W51-A152A1-5 W51-A152A1-15 W51-A121B1-10 W51-A121B1-20 W51-A122B1-10 W51-A122B1-20 W51-A152A1-10 W51-A152A1-20 ORDERING NOTE: Some options illustrated below 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. Other base and button colors and intermediate amp ratings are also available on a special order basis. All special order items are subject to extended leadtimes and significant minimum order quantities. Your TE sales engineer must consult with the factory before providing price and availability information regarding items with these options. Case Styles Marking Options For Contoured For Angular Button Design Button Design (Printed) (Molded) Standard - Standard - Standard - Standard - Standard - RESET/OFF RESET/OFF No Marking RESET/OFF RESET/OFF Printed on Molded into Bezel bezel Angular Button Contoured Button Design Design Terminal Types .205 .298 .374 (5.2) .250 (7.55) (9.5) (6.35) .25 (6.35) .504 .157 X .098 .25 .393 (12.8) (4.0 x 2.5) (6.35) .098 X .157 (10.0) .601 .156  (2.5 x 4.0) .393 (15.26) (3.95) .66 (10.0) TERMINAL THICKNESS.032 (16.76) FOR ALL TYPES (.81) Standard – Special Order - Standard – .250 Quick Connect Solder Right Angle PC Terminal Terminal Terminal Revised 04-17 Dimensions are in inches over Dimensions are shown for reference USA: 1-800-522-6752South America: 55-11-2103-6000 www.te.com(millimeters) unless otherwise purposes only. Specifications and Canada: 1-905-470-4425 Hong Kong: 852-2735-1628 113 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