Specifications:
Rated operational current:DC250A
operational voltage:DC 12-750V
Maximum switching current: 2000A(more than once)
Maximum switching voltage:DC 1000V
Contact form: 1H
Contact load rating:DC 30V 2A / AC 125V 3A
Minimum contact load:DC 8V 100mA
Mechanical life (3600 cycles/hour):More than a million times
250A High Voltage DC Contactor Features:
| Products comply with GB/T 14048.4-2020 standard | |||||
| Main contact | Rated operational current | DC 250A | |||
| Rated operational voltage | DC 12-750V | ||||
| Contact structure | 1H | ||||
| Contact resistance | <0.3mΩ | ||||
| Contact pressure drop (Load rated operating current) | DC 0.1V below | ||||
| Maximum switching current | 2000A(more than once) | ||||
| Maximum switching voltage | DC 1000V | ||||
| Auxiliary contact | Contact form | nothing | |||
| Contact load rating | nothing | ||||
| Minimum contact load | nothing | ||||
| coil | Rated control supply voltage | DC 12~24V | |||
| Rated control power current | Starting/Hold DC12V:2.4A/462mA DC 24V:1.2A/231mA (Turn-on time <0.2s) | ||||
| Coil resistance | Starting/Hold DC12V:5.1Ω/26Ω DC 24V:20.4Ω/104Ω | ||||
| Consumed power | Start/Hold ≈28W/5.5W | ||||
| Pull-in voltage | Less than 75% of rated control supply voltage | ||||
| Release voltage | More than 10% of rated control power supply voltage | ||||
| action | response time | 50ms below | |||
| release time | 30ms below | ||||
| Dielectric properties | Insulation resistance (DC 1000V megohmmeter measurement) | Between coil and contact | 1000mΩ above | ||
| Between polar contacts | 1000mΩ above | ||||
| Withstand pressure | Between coil and contact | AC 4000V 1minute | |||
| Between polar contacts | AC 3000V 1minute | ||||
| Shock resistance voltage [Measured at pulse voltage wave (1.2×50μs)] | 4800V | ||||
| Mechanical property | Impact resistance | misoperation | excitation | 490m/s² | |
| No excitation | 196m/s² | ||||
| durability | 490m/s² | ||||
| Vibration resistance | misoperation | 10~55~10Hz single amplitude 0.75mm (2.94~88.9m/s²) | |||
| durability | 10~55~10Hz single amplitude 0.75mm (2.94~88.9m/s²) | ||||
| Life | Electrical life | Resistive load (360 cycles/hour) | More than 10000 times (DC 450V 250A) More than 6000 times (DC 750V 250A) More than 50 times (DC 750V 375A) | ||
| Capacitive load | Connect more than 20,000 times (DC 37.5V,t=1ms, impact 375A, steady state 250A) | ||||
| Mechanical life (3600 cycles/hour) | More than a million times | ||||
| Ambient temperature | -40~+85°C No icing, no condensation | ||||
| Ambient humidity | 5-85%RH | ||||
