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Residual Current Operated Circuit Breaker with Over-current Protection

Basic Info

Model No.: 112

Product Description





1. Application

TFDZ47LE is applicable to a line of AC 50Hz/60Hz, rated voltage 230V for single pole two-wire, 2-pole or 400V for 3-pole, 3-pole 4-wire, and 4-pole and rated current up to 40A. It can protect the line and motor from overload and short circuit. It can also be used for infrequent line conversion and infrequent motor start. It conforms to the standards of IEC61009


2. The over-current protection property

Ambient
Temperature

Initial Status

Test
Current

Expected Result

Expected Result

Note

30±2℃

Cold position

1.13In

t≥1h

Non-release

--

Carried out immediately after

1.45In

t<1h

Release

--

previous test

Release

Cold position

2.55In

1s<t<60s
(In≤32A)

Release

Current smoothly rises to specified
value within 5s

Cold position

2.55In

1s<t<120s
(In>32A)

Release

-5 - +40℃

Cold position

3In

t≥0.1s

Non-release

Type B

Cold position

5In

t≥0.1s

Release

Type B

Cold position

5In

t≥0.1s

Non-release

Type C

Cold position

10In

t≥0.1s

Release

Type C

Cold position

10In

t≥0.1s

Non-release

Type D

Cold position

20In

t≥0.1s

Release

Type D

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