Yueqing Yijin Electronics Co.,Ltd
YJB1Z-63 Small DC Circuit Breaker
This product complies with the requirements of GB10963.2 and IEC60898-2 standards.
Scope of use
YJB1Z-63 series DC miniature circuit breaker (hereinafter referred to as circuit breaker) is suitable for circuits with rated current of 63A and below, and DC rated voltage of 250V and 440V. Used for overload and short circuit protection of facilities and electrical equipment in DC distribution systems, it can be widely used in industries such as power, postal and telecommunications, transportation, and industrial and mining enterprises.
This product complies with the requirements of GB10963.2 and IEC60898-2 standards.
Model meaning and classification
Product Features
The YJB1Z-63 DC circuit breaker consists of a housing, operating mechanism, thermal release, electromagnetic release contact system, arc extinguishing system, etc. It has overload and short circuit protection functions. The unique design of the structure and strong permanent magnet arc extinguishing system make the product have a short circuit capacity of 10KA and a mechanical life of more than 20000 times. The product has a beautiful appearance and the installation guide rail is made of TH35-7.5 standard steel. It has the following characteristics: the handle is designed above the front end face for safe and comfortable operation, and attention must be paid to the polarity of "+" and "-" when wiring. The power supply enters and exits, which conforms to the characteristics of power supply entering and exiting. It is easy to install and saves wires.
Technical Parameter
| Shell level rating Constant current 1mm (A) | number of poles | Width/Position (18mm Multiple) | rated voltage (V) | Rated current In (A) | Rated ultimate short-circuit capacity | Instantly detached Buckle type | |
| Breaking current Icu(A) | time constant T(ms) | ||||||
| sixty-three | one | one | DC125V/220V | 1. 2, 3, 4, 5 6. 10, 15, 16 20. 25, 32 40, 50, 63A | ten thousand six thousand | ten | B、C |
| two | two | DC250V/440V | |||||
Note: 1P DC220V, 2P DC440V need to be customized
Standard Time - Current
| test | Instantly detached Buckle type | DC test Test current | Initial state | Tripping or non tripping time limit | Expected results | notes |
| a | B、C| | 1.13In | cold state | t≥1h(ln≤63A) | Do not release | |
| b | B、C | 1.45In | Immediately after Experiment A | t<1h(ln≤63A) | trip | Current at 5 seconds Internally stable increase |
| C | B、C | 2.55In | cold state | 1s<t<60s(In≤32A) 1s<t<120s(In>32A) | trip | |
| d | B、C | 4In | cold state | 0.1s≤t≤45s(In≤32A) 0.1s≤t≤90s(In>32A) | trip | Closing assistance switch on power supply |
| 7In | 0.1s≤t≤15s(In≤32A) 0.1s≤t≤30s(In>32A) | |||||
| e | B、C | 7In | cold state | t<0.1s | trip | |
| 15In |
Wiring diagram
Installation and overall dimensions
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