114
P&B
Dimensions are shown for
reference purposes only.
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Catalog 1308242
Issued 3-03 (PDF Rev. 9-05)
Specifications and availability
subject to change.
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
W33 series
One- and Two-Pole, Switchable
Thermal Circuit Breaker / Power Switch
With Optional Indicator Lamp
Time vs. Current Trip Curve @ +25°C Ambient Compensation Chart
All Models
Overload Trip Times
100%
135%
200%
400%
600%
800%
1000%
No Trip
Trip in 1 hour
3.0 - 33 Sec.
0.6 - 10 Sec.
0.34 - 5 Sec.
0.25 - 2.2 Sec.
0.20 - 0.6 Sec.
1000
900
800
700
600
500
400
300
200
100
0.1 1 10 100 1000
Load Current As A Percent
Of Breaker Rating
Time In Seconds
–20 –100 102030405060
1.40
1.30
1.20
1.10
1.00
0.90
0.80
0.70
0.60
Correction Factor
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.
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 @ 25°C
Calibration: Breaker will continuously carry 100% of rated load. It may trip
between 101% and 135%, 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, 60 Hz. and
125/250VAC, 400 Hz.
1,500 amps at 125/250VAC, 60 Hz.
Resettable Overload Capacity: Ten times rated current.
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.
Switch Endurance Cycling: 50,000 operations at rated load.
1,000 operations at 200% rated load.
Agency Approvals
W33 series is UL 1077 Recognized as Supplementary Protectors, File
E69543, and CSA Accepted as Supplementary Protectors (Appliance
Component Protectors), File LR15734.
Users should thoroughly review the technical data before selecting a product part
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.
115
P&B
Dimensions are shown for
reference purposes only.
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Catalog 1308242
Issued 3-03 (PDF Rev. 9-05)
Specifications and availability
subject to change.
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
W33-S1N1Q-5
W33-S1N1Q-15
W33-S1N1Q-20
W33-S4B1Q-10
W33-S4B1Q-15
W33-T2N1Q-20
W33-T4B1Q-5
W33-T4B1Q-10
W33-T4B1Q-15
Outline Dimensions
.850
(21.59)
1.724
(43.79)
.980
(24.89)
1.1 2 0
(28.45)
1.690
(42.93)
1.890
(48.01)
.250
(6.35)
.412
(10.46)
PANEL CLAMPING
ARRANGEMENT
ROCKER
FITS .875 x 1.750 (22.22 x 44.45) PANEL OPENING
FROM .032” - .250”(.813mm - 6.35mm) THICK
I
0
POLE
1
POLE
2
LOAD SIDE
LINE SIDE
NEON - AC
INCANDESCENT - DC
Stock Items – Authorized distributors are more likely to stock the following items.
Ordering Information
Typical Part No. BW33-S1N1Q-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
Schematic
