Newly Designed Mini Circuit Breaker Gkb-63 4 Phase

• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Manual Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Rail Mounted
• Structure: MCB
• Model NO.: GKB-63 4 PHASE
• Poles Number: 4
• Type: Circuit Breaker
• Function: Overcurrent Protection
• Certification: ISO9001-2000, CE, CCC
• Transport Package: Standard Export Package
• Specification: 220/240V AC
• Trademark: TTT
• Origin: China
• HS Code: 85362000
• Production Capacity: 5000000 Pieces/Year

Product Description

                                           Newly  designed  Mini  Circuit  Breaker 
                                                       GKB-63 4P






GKB-63 three-phase unbalanced treatment circuit breaker is suitable for AC 50/60Hz, rated voltage does not exceed 415V, rated
current to 63A circuit overload and short-circuit protection. Each phase of three-phase and four-wire has its own dedicated connection
channel, which is non-interference with each other.

Technial Parameters
• Standard: GB10963.1 iec60898-1
• Rated voltage: 1P, 1P+N: 220/240v AC; 2P, 3P, 3P+N, 4P: 380/415v AC
• Poles: 1P, 1P+N, 2P, 3P, 3P+N, 4P
• Pollution level: level 2
• Protection level: IP20
• Installation category: class II, III
• Working environment temperature: -35°C to +70°C, average temperature is less than 24h +35°C. Circuit breaker of the reference
temperature of 30°C, when the environment temperature changes, the rated current value should be amended, revised coeffcient
see table 1.
• Elevation: the elevation of the installation site shall not exceed 2000m.

Table 1 temperature correction factor table of rated current value
 

Rated Current	Compensation Factor
	-35 ºC	-20 ºC	-10 ºC	-0 ºC	10 ºC	20 ºC	30ºC	40 ºC	50 ºC	60 ºC	70 ºC
1-6A	1.28	1.25	1.18	1.13	1.08	1.03	1	0.96	0.91	0.87	0.82
10-25A	1.27	1.24	1.19	1.13	1.07	1.02	1	0.9	0.91	0.87	0.82
32-40A	1.27	1.24	1.19	1.13	1.08	1.04	1	0.97	0.92	0.88	0.83
50-63A	1.28	1.25	1.18	1.13	1.08	1.03	1	0.96	0.91	0.87	0.82

Installation and maintenance

• Check whether the circuit breaker mark is consistent with the normal working conditions before installation;
• Before power on, manually operate the circuit breaker for several times, the mechanism action should be flexible, reliable, no blocking
phenomenon;
• Circuit breaker should be checked periodically during operation;
• After breaking the overload or short circuit current, the circuit breaker shall frst remove the fault and then restore the closing;
• Circuit breaker shall not fall or be affected by rain during use, storage and transportation