Catalog 1308242 Issued 3-03 (PDF Rev. 9-05) P&B W33 series One- and Two-Pole, Switchable Thermal Circuit Breaker / Power Switch With Optional Indicator Lamp Features Electrical Data @ 25°C • Combines on/off switch and circuit protection in a single unit. Calibration: Breaker will continuously carry 100% of rated load. It may trip • 2 to 20 amp ratings (<2A types available as special order). between 101% and 135%, but must trip at 135% within one • One or two pole sensing. hour at +25°C. • Lighted or non-lighted rocker actuator in various colors. Dielectric Strength: Over 2,000 volts RMS. • Convenient, snap-in mounting. Maximum Operating Voltages: 50VDC; 250VAC to 400 Hz. • Optional auxiliary switch available. Interrupt Capacity: 1,000 amps at 50VDC; 250VAC, 60 Hz. and • Trip-free operation. 125/250VAC, 400 Hz. 1,500 amps at 125/250VAC, 60 Hz. Resettable Overload Capacity: Ten times rated current. Agency Approvals Mechanical/Environmental Data W33 series is UL 1077 Recognized as Supplementary Protectors, File Termination: Poles 1&2: .250” (6.35mm) quick connect/solder terminals. E69543, and CSA Accepted as Supplementary Protectors (Appliance Opt. Aux. Sw.: .110”(2.79mm) quick connect terminals. Component Protectors), File LR15734. Mounting: Snaps into panel from front. Actuator: Rocker or lighted rocker. Users should thoroughly review the technical data before selecting a product part Shock: 30g tested to IEC 68-2-27, test Ea. number. It is recommended that users also seek out the pertinent approvals files of Vibration: 8g tested to IEC 68-2-6, test Fc. the agencies/laboratories and review them to ensure the product meets the Switch Endurance Cycling: 50,000 operations at rated load. requirements for a given application. 1,000 operations at 200% rated load. Time vs. Current Trip Curve @ +25°C Ambient Compensation Chart 1.40 1000 All Models 1.30 Overload Trip Times 900 100% No Trip 1.20 135% Trip in 1 hour 800 200% 3.0 - 33 Sec. 1.10 400% 0.6 - 10 Sec. 700 1.00 600% 0.34 - 5 Sec. 800% 0.25 - 2.2 Sec. 600 0.90 1000% 0.20 - 0.6 Sec. 0.80 500 0.70 400 0.60 –20–10 0 102030405060 300 Ambient Temperature In Degrees Centigrade (°C) 200 To use this chart: Read up from the ambient 100 temperature to the curve, and across to find a correction factor. Multiply the breaker rating by the 0 correction factor to determine the compensated .1 1 10 100 1000 rating. Calculate the overloads in terms of the Time In Seconds compensated rating to use the published trip curve. Dimensions are shown for Dimensions are in inches over Specifications and availability www.tycoelectronics.com reference purposes only. (millimeters) unless otherwise subject to change. Technical support: 114 specified. Refer to inside back cover. Load Current As A Percent Of Breaker Rating Correction Factor Catalog 1308242 Issued 3-03 (PDF Rev. 9-05) P&B Ordering Information Typical Part No. B W 33 -S 1N1Q -20 1. Designator: W = Circuit breaker 2. Series Number: 33 = Two pole, rocker actuated 3. Circuit Function: S = Pole 1 – Switch only; Pole 2 – Series trip overload sensing. T = Poles 1 & 2 – Series trip overload sensing. SS = Same as S with auxiliary switch on pole 1. TS = Same as T with auxiliary switch on pole 1. D = 2 Pole switching. 4. Rocker Color: 1 = Black. 2 = White. 3 = Red. 4 = Amber. 5 = Smoke. 5. Light (available only with White, Red, Amber and Smoke rocker colors): A = 24VDC (Incandescent). B = 120VAC (Neon with resistor). C = 240VAC (Neon with resistor). N = No light. 6. Marking: 1 = International I/O. 2 = Contrasting I/O stamp (white toggle with black stamp). 7. Termination: Q = .250” x .032” (6.35 x .813mm) quick connect / solder terminals. 8. Amp Rating: 2 5 7 10 12 15 16 20 Consult factory for availability of ratings <2A Stock Items – Authorized distributors are more likely to stock the following items. W33-S1N1Q-5 W33-S4B1Q-10 W33-T4B1Q-5 W33-S1N1Q-15 W33-S4B1Q-15 W33-T4B1Q-10 W33-S1N1Q-20 W33-T2N1Q-20 W33-T4B1Q-15 Outline Dimensions Schematic LINE SIDE POLE POLE ROCKER 2 1 .980 1.724 .850 (24.89) (43.79) (21.59) I 1.690 (42.93) 1.890 (48.01) 1.120 0 (28.45) .250 PANEL CLAMPING LOAD SIDE (6.35) ARRANGEMENT .412 (10.46) NEON - AC INCANDESCENT - DC FITS .875 x 1.750 (22.22 x 44.45) PANEL OPENING FROM .032” - .250”(.813mm - 6.35mm) THICK Dimensions are shown for Dimensions are in inches over Specifications and availability www.tycoelectronics.com reference purposes only. (millimeters) unless otherwise subject to change. Technical support: 115 specified. Refer to inside back cover.