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GRM3DC 630A Molded Case Circuit Breaker

Through many years of dedicated research on the actual system operation situation and customer needs for new energy at home and abroad, UNITE Electric has developed the GRM3 (DC)-(HU) series of AC and DC Molded Circuit Breakers for New Energy.

Description

Product Characteristic
– for the GRM3-(HU) series Molded Circuit Breaker, The maximum rated voltage is 1140V, and the maximum current is 400A.
– for GRM3-(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 GRM3DC-(HU) series Molded Circuit Breaker, The maximum rated voltage is 1500V, and the maximum current is 400A.
– for GRM3DC-(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
GRM3(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.

ModelGRM3DC-250HUGRM3DC-320HUGRM3DC-40OHUGRM3DC-50OHUGRM3DC-630HUGRM3DC-80OHU
Rated current of shell frame grade Inm(A)250320400500630800
Rated current In(A)63,80,100,125,140,160,180,200,225,250,280,315,32063,80,100,125,140,160,180,200,225,250,280,315,320225,250,280,300,315,350,400500500,630700,800
Pole Number2/32/324222
Rated working voltage Ue(V)DC50010001500500100015001500/16001000125015001500/16001500/16001500/1600
Rated insulation voltage Ui (V)DC2300DC2300DC2300DC2300DC2300DC2300
Rated impulse withstand voltage Uimp (kV)121212121212
Extreme short-circuit breaking capacity Icu (kA)50202050202020402510204025102040251020402510
Running short-circuit breaking capacity lcs (kA)Ics=100%Icu
Wiring modeUpper 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)200002000010000500050005000
Electrica life(Total times)300020001500300020001500100010007005001000100070050010001000700500100010001700500
Insolation featureyes
StandardIEC 60947-2、GB/T14048.2
Allowable ambient temperature-35℃~+70°C
Levels of protectionIP20
Quality certificateCCC、CB、TUV、CE certificate
With accessoriesAuxiliary,alarm,off load, Hand operation, Electric operation
Arcing distance (mm)≤50 (Zero arc,with arcing cover)
Transient Action value1O ln
Overall dimensions LxWxH(mm)L180180(3P)258250250250
W76(2P)/107(3P)76(2P)/107(3P)198124(2P)/182(3P)124(2P)/182(3P)124(2P)/182(3P)
H105105107165165165
Installation wayfixed type,plug-in type
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