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 |