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CNS Moulded Case Circuit Breaker

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Yueqing Shendian Electrical Co., Ltd

China

Recommended by CCCME

Product Details
Company Profile

With 30 years experience, we produce quality MCCB with moderate price. Looking for dealer, wholesaler and other type of clients for further cooperation.

Functions and characteristics

Item No.		CNS 800-1600
Number of poles		3P, 4P
Control	Manual	with toggle with direct or extended rotary handle
Connections	Fixed	front connections
Connections	Plug-in	front connections/rear connections
Electrical characteristics as per IEC60947 and EN60947-2
Rated current(A) In	In	800, 1000, 1250, 1600
Rated insulation voltage(V)	Ui	800
Rated impulse withstand voltage(kV)	Uimp	8
Rated operational voltage(V)	Ue	AC 50/60Hz,690
Breaking capacity levels		N H
Utilization category	AC	220/240V 85 85
		380/415V 50 70
		440V 50 65
		500/525V 40 50
		660/690V 30 42
Operation performance	Mechanical	10000
Operation performance	Electrical 440V	5000
Protection Chart C-1
Overload protection	long-time delay	Ir (In x......)
Short-circuit protection	short-time delay	Isd (Ir x......)
Short-circuit protection	Instantaneous	Ii (In x......)
Indication and control auxiliaries
Auxiliary switch		��
MX Shunt coil		��
MN under-voltage coil		��

Protection

Chart C-1

Protection thresholds and delays are set using the adjustment dials.
Offer standard long time delay setting module.

overload protection

True rms long-time protection.
Thermal memory: thermal image before and after tripping.

Short-circuit protection

Short-time(rms) and instantaneous protection.
Selection of l't type(ON or OFF)for short-time delay.

Neutral protection

On 3-pole circuit breakers, neutral protection is not possible.
On 4-pole circuit breakers, neutral protection may be set using a three-position switch: neutral unprotected (4P 3d), neutral protection at 0.5lr (4P 3d +N/2) or neutralprotection at lr (4P 4d).

lndications

Overload indication by alarm LED on the front; the LED goes on when the current exceeds the long-time trip threshold.

Test

A mini test kit or a portable test kit may be connected to the test connector on the front to check circuit-breaker operation after installing the trip unit or accessories.

1.long-time threshold and trpping delay,2.overload alarm(LED),3.short-time pick-up and tripping delay,4.instantaneous pick-up,5.fixing screw for long-time rating plug,6.test connector

Micrologic name codes

Current protection,Micrologic 2:basic protection;Micrologic 5:selective protection;Micrologic 6:sekectuve + earth-fault protection,Micrologic 7:selective + earth - leakage