3P 200A Molded Case Circuit Breaker MCCB

In complex distribution networks, 200A current nodes often connect the main distribution cabinet with multiple large branch loads, or directly guard critical production equipment. SPX factory's high quality 3P 200A Molded Case Circuit Breaker MCCB is designed to undertake this responsibility. It is not only the on-off switch of the circuit, but also the core execution unit for implementing graded and selective protection strategies in the distribution system. With its superior performance and adjustability compared to miniature circuit breakers, as well as more favorable characteristics than frame circuit breakers, it has successfully achieved a balance between protection performance, system coordination, and cost, and is an indispensable backbone component in modern distribution design.

Advantage

The model of 3P 200A Molded Case Circuit Breaker MCCB equipped with electronic release supports long delay, short delay, and instantaneous three-stage protection. By precisely setting the short delay time and current value, it is possible to ensure complete selective cooperation with the lower level circuit breaker, isolate only the faulty circuit in case of a fault, and ensure continuous power supply to other parts of the system.

Both thermal magnetic and electronic overload protection settings can be adjusted, allowing engineers to accurately match the actual cable current carrying capacity and load characteristics, avoiding misoperation and optimizing protection effects.

The customized 3P 200A Molded Case Circuit Breaker MCCB provides a maximum short-circuit breaking capacity of up to 35kA to 50kA, which can reliably cut off potential short-circuit faults in medium-sized distribution systems and effectively protect upstream and downstream electrical equipment.

It is convenient to install auxiliary contacts, alarm contacts, shunt release, undervoltage release, etc., to meet various needs such as status indication, remote control, and system interlocking.

Application

In the factory workshop distribution cabinet, the 3P 200A Molded Case Circuit Breaker MCCB serves as the main distribution switch for a certain area or production line. 
3P 200A Molded Case Circuit Breaker MCCB is used for grid connection and protection of water treatment, communication base stations, and output terminals of medium-sized photovoltaic inverters.

The SPX SM50-250 Series Of Moulded Case Circuit Breaker MCCB Parameter

Frame(A)		SM50-250(NF-CV)
Rated current In(A)		100、125、140、150、160、175、200、225、250
Rated voltage(V)		AC 400V
Rated insulation voltage(V)		AC 690V
Number of poles		3			4
Limited breaking capacity		C	S	H	C	S	H
Short circuit interrupting capacity(kA) AC400V		18	30	50	18	30	50
Operate short circuit(kA) AC400V		9	15	25	9	15	25
Profile picture
	a	165			165
	b	105			140
	c	90			90
Mounting picture
	d	126			126
	e	35			35
	f	5			5
Machine life		4000
Electrical life		2000
Electrical-operation device(MD)		●
Extemal rotary handle		●
Automatic tripping device		Thermal-magnetic