RDX6-63/DC MCB is suitable for the DC distribution circuit of AC 50/60Hz, rated voltage up to 400V, rated current up to 63A, rated short-circuit breaking capacity does not exceed 6000A, as the use of circuit's infrequently connecting, breaking and switching, with the functions of over-load, short-circuit protection. Meanwhile, it has strong auxiliary function modules, such as auxiliary contacts, contacts with alarming indication, shunt releasing, under-voltage releasing, and remote release control etc. modules. This product confirms to GB10963.1 and IEC60898-1 standards.
Model No.
Main technique parameter
Over-current releasing characteristics should confirm to table 1 when the circuit breaker is at normal installation condition and basic temperature of 30-35℃.
| No. | Tripping type | Rated current In | Test current A | Approximate time | Expected result | Starting state | |||
| 1 | C | All values | 1.13In | t≤1h | Not releasing | cold state | |||
| 2 | C | All values | 1.45In | t≤1h | Releasing | immediately after the serial number 1 test | |||
| 3 | C | ≤32A | 2.55In | 1s＜t＜60s | Releasing | cold state | |||
| 32A＜In≤63A | 1s＜t＜120s | ||||||||
| 4 | C | All values | 5In(AC) | t≤0.1s | Not releasing | cold state | |||
| 7In(DC) | |||||||||
| 5 | C | All values | 10In(AC) | t≤0.1s | Releasing | cold state | |||
| 15In(DC) | |||||||||
| Tripping type | Rated current A | Rated short-circuit breaking capacity A | Time constant T | ||||||
| C | 1≤In≤63 | 6 000 | 4ms | ||||||
Shape and installation dimensions
