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2-1393248-9 Datasheet, PDF (1/2 Pages) Tyco Electronics – One- and Two-Pole Thermal Circuit Breaker
W33 series
One- and Two-Pole
Thermal Circuit Breaker
Features
• Combines on/off switch and circuit protection in a single unit.
• 2 to 20 amp ratings (<2A types available as special order).
• One or two pole sensing.
• Lighted or non-lighted rocker actuator in various colors.
• Convenient, snap-in mounting.
• Optional auxiliary switch available.
• Trip-free operation.
Electrical Data
Calibration: Breaker will continuously carry 100% of rated load. It may trip
between 101% and 135% of rated load, but must trip at
135% within one hour at +25°C.
Dielectric Strength: Over 2,000 volts rms.
Maximum Operating Voltages: 50VDC; 250VAC to 400 Hz..
Interrupt Capacity: 1,000 amps at 50VDC; 250VAC, 60Hz.; 125/250VAC,
400 Hz.
1,500 amps at 125/250VAC, 60 Hz.
Resettable Overload Capacity: Ten times rated current.
Agency Approvals
W33 series is UL1077 Recognized as Supplementary Protectors, File
E69543 and CSA Certified as Appliance Component Protectors, File
LR15734.
Mechanical/Environmental Data
Termination: Poles 1&2: .250” (6.35mm) quick connect/solder terminals.
Opt. Aux. Sw.: .110”(2.79mm) quick connect terminals.
Mounting: Snaps into panel from front.
Actuator: Rocker or lighted rocker.
Shock: 30g tested to IEC 68-2-27, test Ea.
Vibration: 8g tested to IEC 68-2-6, test Fc.
Endurance Cycling: 50,000 operations at rated load.
1,000 operations at 200% rated load.
Time vs. Current Trip Values @ 25°C
1000
900
800
700
600
500
400
300
200
100
0
.1
All Models
Overload
Trip Times
100%
No Trip
135%
Trip in 1 hour
200%
3.0 - 33 Sec.
400%
0.6 - 10 Sec.
600%
0.34 - 5 Sec.
800%
0.25 - 2.2 Sec.
1000%
0.20 - 0.6 Sec.
1
10
100
Time In Seconds
1000
Ambient Compensation Chart
1.40
1.30
1.20
1.10
1.00
0.90
0.80
0.70
0.60
–20 –10 0 10 20 30 40 50 60
Ambient Temperature In Degrees Centigrade (°C)
To use this chart: Read up from the ambient
temperature to the curve, and across to find a
correction factor. Multiply 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.