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.
Mechanical/Environmental Data
Agency Approvals
W33 series is UL1077 Recognized as Supplementary Protectors, File
E69543 and CSA Certified as Appliance Component Protectors, File
LR15734.
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
Ambient Compensation Chart
1.40
1000
900
1.30
Load Current As A Percent
Of Breaker Rating
800
700
600
500
400
300
200
100
0
.1
1
10
All Models
Overload
Trip Times
No Trip
100%
Trip in 1 hour
135%
3.0 - 33 Sec.
200%
0.6 - 10 Sec.
400%
0.34 - 5 Sec.
600%
0.25 - 2.2 Sec.
800%
0.20 - 0.6 Sec.
1000%
Correction Factor
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)
100
1000
Time In Seconds
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.
Ordering Information
Typical Part Number
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.
B
W
33
-S
1
N
1
Q
-20
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).
6. Marking:
1 = International I/O.
N = No light.
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 – The following items are normally maintained in stock for immediate delivery.
Not presently a distributor stock item.
Outline Dimensions
ROCKER
.980
(24.89)
1.724
(43.79)
POLE
2
.850
(21.59)
POLE
1
Schematic
LINE SIDE
I
1.890
(48.01)
1.690
(42.93)
1.120
(28.45)
0
PANEL CLAMPING
ARRANGEMENT
.412
(10.46)
.250
(6.35)
LOAD SIDE
NEON - AC
INCANDESCENT - DC
FITS .875 x 1.750 (22.22 x 44.45) PANEL OPENING
FROM .032” - .250”(.813mm - 6.35mm) THICK
Tyco Electronics Corporation - P&B, Winston-Salem, NC 27102
Technical Support Center: 1-800-522-6752, www.pandbrelays.com
Specifications and availability subject to change without notice.
13C9330
Printed in U.S.A.
IH/12-00
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