Cut Sheet

Edition: 12 / 00

Thermal Circuit Breaker W58

Electrical data

Calibration will continuously carry 100% of rating

may trip at 101...144%, but must trip at 145% of rating at +25°C

Maximum operating voltage 50 Vdc; 250 Vac 50/60Hz

Interrupt capacity 2000 A at 50 Vdc

1000 A at 250 Vac 50/60Hz

Resettable overload capacity 10x rated current

Dielectric strength > 1500 Vrms

· 0.5...25 A ratings

· Cannot be manually tripped

· Push button to reset breaker

UC Recognized as supplementary protectors

Technical data of approved types on request

F0215-A

Typical resistance vs. current rating

Current rating Max. resistance Current rating Max. resistance Current rating Max. resistance

A c A c A c

0.5 5.0 5.0 0.026 10.0 0.014

1.0 1.35 6.0 0.026 12.0 0.010

2.0 0.32 7.0 0.020 15.0 0.010

3.0 0.18 8.0 0.020 20.0 0.006

4.0 0.10 9.0 0.020 25.0 0.005

Data for

ambient temperature +25°C

How to use the correction: Multiply the breaker

rating by correction factor to determine the compen-

sated rating. Calculate the overloads in terms of the

compensated rating to use the published trip curve.

PAGE 1
Thermal Circuit Breaker W58 · 0.5...25 A ratings · Cannot be manually tripped · Push button to reset breaker F0215-A U C Recognized as supplementary protectors Technical data of approved types on request Electrical data Calibration Maximum operating voltage Interrupt capacity Resettable overload capacity Dielectric strength Typical resistance vs. current rating Current rating Max. resistance A c 0.5 5.0 1.0 1.35 2.0 0.32 3.0 0.18 4.0 0.
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Thermal Circuit Breaker W58 Other data Ambient temperature Endurance cycling Vibration resistance Weight Packaging unit Mounting Hardware -20...+60°C > 1000 operations at 200% of rating 10g at 10...55 Hz 42 g 100 pcs.