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EKM1-63DC is a non-polarized DC miniature circuit breaker designed for photovoltaic, energy storage, and other high-voltage DC applic-ations. Supporting 6-63A at up to 1200VDC and available in 1P/2P/3P/4P configurations, its polarity-free design simplifies installation, eliminates wiring errors, and enables fast, efficient field deployment.
With high-voltage capability, dependable arc suppression, and precise tripping, it ensures reliable performance and enhanced safety for modern systems.
Note: Configure the external bridging busbars as required by the circuit diagram.
| Standard | IEC/EN 60947-2 | ||||
| Protection | Overcurrent and short circuit | ||||
| Type of trip | Thermal-magnetic | ||||
| No.of poles | 1P | 2P | 3P | 4P | |
| Rated voltage(Ue) | 300VDC | 600VDC | 900VDC | 1200VDC | |
| Rated currents (In) | 6,10,16,20,25,32,40,50,63A | ||||
| Rated insulation voltage(Ui) | 1200V | ||||
| Rated impulse withstand voltage(Uimp)(1.2/50μs) | 6kV | ||||
| Rated service short circuit breaking capacity (cs) | 6kA | ||||
| Rated ultimate short circuit breaking capacity (lcu) | 6kA | ||||
| Thermal tripping characteristics | 1.05×In No tripping within an hour; 1.3×In Tripping within an hour |
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| Instantaneous tripping characteristics | B:4In±20%,C:8ln±20%,K:10ln±20% | ||||
| Electrical life | Actual value | >1,000 Cycles | |||
| Standard value | 1,000 Cycles | ||||
| Mechanical life | Actual value | >20,000 Cycles | |||
| Standard value | 8500 Cycles | ||||
| Contact position indicator | green OFF/red ON | ||||
| Overvoltage category | 3 | ||||
| Pollution degree | 3 | ||||
| Ingress protection | IP40,Wiring port IP20 | ||||
| Resistance to humidity and heat | Class 2 | ||||
| Reference temperature | -30℃ | ||||
| Operating ambient temperature(with daily average≤35℃) | -25℃~+55℃ | ||||
| Ambient temperature | -30℃~+70℃ | ||||
| Terminal connection type | Cable | ||||
| Max.terminal size for cable | 16mm²flexible/25mm²rigid | ||||
| Max.tightening torque | 2.5N.m | ||||
| Installation | Mounting on 35mm DIN rail | ||||
| Incoming method | According to the wiring diagram | ||||
