Description

Product Characteristic
– for the IRM3-(HU) series Molded Circuit Breaker, The maximum rated voltage is 1140V, and the maximum current is 400A.
– for IRM3-(HU) series Molded Circuit Breaker, in the voltage of 800V, the maximum breaking capacity is 36.5kA, which can ensure reliable short-circuit protection of the system.
– for IRM3DC-(HU) series Molded Circuit Breaker, The maximum rated voltage is 1500V, and the maximum current is 400A.
– for IRM3DC-(HU) series Molded Circuit Breaker, in the voltage of 1500V, the maximum breaking capacity is 20kA, which can ensure reliable short-circuit protection of the system.

Standard
IRM3(DC)-(HU) series AC/DC molded case circuit breaker meets the following standards IEC60947-1 GB/T14048.1 General Provisions IEC60947-2 GB/T14048.2 circuit breaker

Use and Maintenance
Various characteristics and accessories of the circuit breaker shall be fixed by the manufacturer and shall not be adjusted in the use. Under the compliance with custody and use conditions, from the date of 24 months from the manufacturer delivery and in the situation of the circuit breaker intact seals, if the product is damaged or not used normally due to manufacturing quality problems, the manufacturer shall be responsible for replacement and repair without charge.

Applied Environment
1. The altitude is not higher than 2,000 m;
2. It is resistant to damp air (three-proof type)①
3. It is resistant to the influence of salt fog and oil fog (three-proof type);
4. It is resistant to the influence of mold (three-proof type);
5. In a medium without explosion risk, the medium is not enough to corrode the metal and destroy the insulation of the gas and conductive dust.
Note: the three-prevention products should be specially customized, please indicate TH.

Model		IRM3DC-250HU			IRM3DC-320HU			IRM3DC-40OHU				IRM3DC-50OHU				IRM3DC-630HU				IRM3DC-80OHU
Rated current of shell frame grade Inm(A)		250			320			400				500				630				800
Rated current In(A)		63,80,100,125,140,160,180,200,225,250,280,315,320			63,80,100,125,140,160,180,200,225,250,280,315,320			225,250,280,300,315,350,400				500				500,630				700,800
Pole Number		2/3			2/3			2	4			2				2				2
Rated working voltage Ue(V)DC		500	1000	1500	500	1000	1500	1500/1600	1000	1250	1500	1500/1600				1500/1600				1500/1600
Rated insulation voltage Ui (V)		DC2300			DC2300			DC2300				DC2300				DC2300				DC2300
Rated impulse withstand voltage Uimp (kV)		12			12			12				12				12				12
Extreme short-circuit breaking capacity Icu (kA)		50	20	20	50	20	20	20	40	25	10	20	40	25	10	20	40	25	10	20	40	25	10
Running short-circuit breaking capacity lcs (kA)		Ics=100%Icu
Wiring mode		Upper in and lower out, lower in and upper out (2P, 320/3P) Lower in and lower out, upper in and upper out (3P)
Mechanical life(Total times)		20000			20000			10000				5000				5000				5000
Electrica life(Total times)		3000	2000	1500	3000	2000	1500	1000	1000	700	500	1000	1000	700	500	1000	1000	700	500	1000	1000	1700	500
Insolation feature		yes
Standard		IEC 60947-2、GB/T14048.2
Allowable ambient temperature		-35℃~+70°C
Levels of protection		IP20
Quality certificate		CCC、CB、TUV、CE certificate
With accessories		Auxiliary, alarm,offload, Hand operation, Electric operation
Arcing distance (mm)		≤50 (Zero arcs,with arcing cover)
Transient Action value		1O ln
Overall dimensions LxWxH(mm)	L	180			180(3P)			258				250				250				250
	W	76(2P)/107（3P)			76(2P)/107（3P)			198				124(2P)/182(3P）				124(2P)/182(3P）				124（2P)/182(3P)
	H	105			105			107				165				165				165
Installation way		fixed type,plug-in type

IRM3DC 250A Molded Case Circuit Breaker

Description

Related products

IRM3DC 630A Molded Case Circuit Breaker

IRM3DC 500A Molded Case Circuit Breaker

IRM3DC 400A Molded Case Circuit Breaker

IRM3DC 320A Molded Case Circuit Breaker