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S7N(YDZ30-32) Mini Circuit Breaker

Applications

S7N(YDZ30-32) series miniature circuit breaker is reliable in feature, precise in protective
characteristics, high in breaking capacity, small in size. It is suitable for the protection against over
current of the electric line and electric equipment in the construction building and similar place with
AC 50/60Hz, rated voltage 240V, and rated working current up to 32A. In addition, it is used for the
infrequent on off of the line.

Basic Specification and Main Parameters

Rated current of frame 32A
Rated voltage 50/60Hz, 240V~
Rated current 6, 10, 16, 20, 25, 32A
Rated breaking capacity (A) 6~20A 6000A 25A 32A 4500A
Pole 1P+N
Width 18mm
Mechanical lifes (times) 8000
Electrical lifes (times) 4000

Construction Characteristics
The width of this circuit breaker shell is not bigger than 18mm. It has small size and compact
structure, sound current limiting effect, high breaking capacity. It has 1P+N double breaking
point and the two poles are separated without insulation. Under the precondition of simultaneous
connection and breaking, N pole is always kept as connection first then breaking, which guarantees
not only pole breaking electric arc but also effective protection to the controlled line and electric
equipment. This circuit breaker adopts lifting type connection terminals which offers easy
connection and convenient installation with 35mm din rail.

Dimensions

The tripping feature of thecircuit breaker is shown as the following drawing
Tripping device type B C Tripping time
T.trpping I1 1.13In 1.13In 1h
I2 1.45In 1.45In < 1h
Type 7 M.trpping I3 3In 5In 0.1s
10In
< 0.1s
5In
I4
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