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YKDM47-63 series of miniature circuit breaker

   Model

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  YKDM-----------------------------molded case circuit breaker

   47-----------------------------------design No.

LE-----------------------------------special derivative code (electric circuit breaker)

63------------------------------------frame class rated current

□------------------------------------number of poles (A)

□------------------------------------rated surplus action current (mA)

 

 YKDM47-63 high breaking miniature circuit breaker is a current-limit circuit, has the function of overload and short circuit protection. It is used for industrial and commercial lighting distribution system of AC 50 HZ, single pole voltage 230V and below, second, third, and fourth pole volt age 400V and below.

   General

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 The circuit breaker are small-sized, light, high breaking capability, response breaking , guide installation, the shell and the components applies the high fire-retardant and anti-shock material, reliable

   Structure

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The circuit breaker are formed by shell, handle, operating mechanism, contact system, hot release, magnetic release, and arc extinguish cover. Circuit breaker is power on, double metal distorted for hot, when the current is a certain overload, double mental drives the release, when the release is through the short circuit large current, electromagnetic system drive the release, and therefore protect the power equipment.

Maintenance free

 

 

   Technical parameters

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Fixed current A	Number of poles	Rated voltage V	Rated breaking capability	Instantaneous release type
1,3,6,10,16 20,25,32,40	1P	230	6000	B,C,D
	2P,3P,4P	400
50,63	1P	230	4000
	2P,3P,4P	400

 

Serial No.	Release rated current A	Original state	Testing current	Specified Time	Expectation results	Remark
1	6~63	cold state	1.13 ln	T≥1h	Non-release
2	6~63	Follow the former testing	1.45 ln	T＜1h	Release	The current stably to the specified value within 5s
3	In 32	cold state		Is＜t＜60s	Release
	In 32	cold state	2.55 ln	Is＜t＜120s	Release
4	6~63	cold state	5 ln	t ≥0.1s	Non-release
	6~63	cold state	10 ln	T＜0.1s	Release

 

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