3P 630A Molded Case Circuit Breaker

SPX's customized 3P 630A Molded Case Circuit Breaker is located in the heart of data centers, heavy industrial plants, and large commercial complexes, where the power distribution system needs to withstand and safely distribute power loads of up to several hundred kilowatts. It adopts a sturdy framework design, not only as a circuit breaker, but also as a comprehensive power management terminal that integrates ultra high current switching, intelligent protection algorithms, panoramic state perception, and networked control. It marks a new level of protection capability and intelligence in the field of molded case circuit breakers, and is a strategic choice to address the most complex and demanding distribution challenges.

Feature

Rated current of 630A, it can safely carry a continuous load of about 350kW (400V three-phase), meeting the main power supply needs of the vast majority of large industries and infrastructure.
The 3P 630A Molded Case Circuit Breaker in stock has a maximum short-circuit breaking capacity of 100kA and above, and can face and safely clear the maximum short-circuit fault that may occur near the transformer. It is the cornerstone of ensuring the stability of the entire low-voltage distribution system architecture.
The strengthened contact system and arc extinguishing chamber design can withstand the huge electric impact force and thermal energy generated by short-circuit current, ensuring that the equipment body is intact after disconnection and can continue to be put into use.
Equipped with advanced digital trip units, users can accurately set the current and time parameters for long delay, short delay, instantaneous, and ground fault protection, achieving complete selective coordination with upper and lower level protection equipment, and completely eliminating over level tripping.
In addition to basic protection, the 3P 630A Molded Case Circuit Breaker provides multiple protections such as load monitoring, thermal memory, phase imbalance, undervoltage/overvoltage, etc. Equipped with warning function, it can alarm before faults occur and record detailed fault waveforms and data, achieving predictive maintenance.

Application

Low voltage main incoming lines or important busbar interconnection switches for data centers, large hospitals, international airports, and rail transit.
The incoming switch of the workshop main distribution cabinet in steel, chemical, and automobile manufacturing factories is equipped with a 3P 630A Molded Case Circuit Breaker to protect large production lines.
Low voltage side main circuit breakers for transformers in super high-rise buildings, large shopping centers, and conference and exhibition centers.
AC combiner or grid connection point circuit breakers for large photovoltaic power plants and energy storage power plants.
The 3P 630A Molded Case Circuit Breaker provides direct protection and intelligent control for large chillers, mining hoists, and giant compressors.

The SPX SM30-800 Series Of Moulded Case Circuit Breaker MCCB Parameter

Frame(A)				SM30-800-CEP	SM30-800-SEP	SM30-800-HEP	SM30-800-REP	Operating characteristics
Rated current In(A)				400~800 adjustable
Number of poles				3
Rated insulation voltage U1(V)			AC	600	690	690	690
Rated breaking capacity (KA)	IEC 60947-2 (lcu/lcs)	AC	690V	-	10/10	15/15	20/15
			500V	18/9	30/30	50/50	70/35
			440V	36/18	42/42	65/65	125/63
			400V	36/18	45/45	70/70	125/63
			230V	50/25	85/85	100/100	150/75
		DC	250V	-	-	-	-
Profile picture
			a	275
			b	210
			c	150
Mounting picture
			d	243
			e	70
			f	8
Machine life				4000
Electrical life				1500
Electrical-operation device(MD)				●
Extemal rotary handle				●
Automatic tripping device				Thermal-magnetic