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Circuit Breakers

Relays, Contactors & Circuit Breakers

Key Features

Typical Applications

HVAC (Transformers), General Aviation, Medical, Marine

Power Supplies, Lighting, Surge Protection

Audio, Pool and Spa, Appliances, Industrial Controls

Generators, General Aviation, Medical, Marine

Power Supplies, Lighting, Surge Protection

Audio, Pool and Spa, Appliances,

Industrial Controls

Operational Data

Type

Number of Poles

Circuit function

Ambient temperature (max.)

Terminal type

Mounting

Manual operation Actuator

Dimension L*W*H

Thermal

1

Series trip

-20 to +60 °C

Standard quick connect .250in x .032in

Snap-in

Push-to-reset

39.0 x 15.9 x 13.7mm

Thermal

1

Series trip

-20 to +65°C

#8-32 screw

Thru-hole 3/8"-24 threaded bushing

Push/pull W23 and toggle W31

40.6x17.5x35.2mm

Electrical Data

Dielectric strength

Insulation Resistance

Max Operating Voltages

Rated current

Interrupt capacity

Calibration

Resetable Overload Capacity

Reset Time

1500Vrms

32VDC 250VAC, 50/60Hz

0.5A to 20A

1,000 amps at 250VAC, 50/60 Hz. and 32VDC in

accordance with UL standard 1077.

Will continuously carry 100% of rating. 3-20 amp

models – may trip between 101% and 134%, but must

trip at 135% of rating within one hour at +25°C.

0.25-2 amp models – may trip between 101% and

174%, but must trip at 175% of rating within one hour

at +25°C.

Six times rated current for 0.25 through 2 amp

models. Ten times rated current for 3 through 20

amp models.

180 seconds max. for 0.25 through 2 amp models.

5 to 30 seconds for 3 through 20 amp models.

1500Vrms

50VDC 240VAC to (400Hz)

1A to 50A

With 4X Max. Series Fuse Protectio

n

0.5-50 amp models — 1000 amps at 240VAC.

30-50 amp models — 1000 amps at 50VDC.

Without 4X Max. Series Fuse Protection

0.5-25 amp models — 2000 amps at 50VDC.

10-20 amp models — 2000 amps at 120VAC

Continuously carry 100% of rating, may

trip between 101% and 134% of rating at

25°C. Must trip at 135% in one hour.

Ten times rated current.

Accessories

Protective boot, push-on lockwasher

Hex nut, lockwasher, knurl nut

Link to datasheet

Potter & Brumfield W28

Potter & Brumfield W23/W31

Potter & Brumfield W28

Thermal Overload / Trip Free Operation

Replaces slow blow glass cartridge fuse and holder

Button provides visible trip indication

Push-to-reset

Snap-in mounting

UL 1077, CSA, VDE, CCC (16A/20A not VDE)

PCB mount not applicable.

Visit

TE.com for more information

PCB mount not applicable.

Visit

TE.com for more information

Potter & Brumfield W23/W31

Thermal Overload / Trip Free Operation

Toggle or Push/Pull Actuation

Cannot be reset against overload

On/Off switching option

UL 1077, CSA

1) Recommended minimum load indication for contact material: AU and gold plated: 1mA at 6VDC; AgNi0.15 and AgNi90/10:

10mA at 12VDC: AgCdO and AgSnO

2: 100mA at 12VDC. Please contact technical support for detailed technical data.

2) Footprint images are representative. For a complete selection, refer to the TE

data sheet via the link above.