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| Contact type | One pair of bridge type Normal open (NO) contacts | Insulation resistance(MΩ) | ≥100 | ||
| Rated voltage of contacts (DC) | 750V,150A | Dielectric withstand voltage | between contacts and coil | 2200VAC, 50Hz, 1min, No breakdown, no flashover. | |
| Voltage drop on contacts(mV) | ≤100 (under 100A current) | Between contacts | |||
| Pickup voltage(DC) | ≤75%Us | Rated load electrical life | 1000V,70A | ≥1000 times | |
| Release voltage(DC) | ≥7.0V | 900V,90A | ≥1000 times | ||
| Pickup time(ms) | ≤30 | 750V,150A | ≥1000 times | ||
| Release time (ms) | ≤20 | 450V,150A | ≥5000 times | ||
| Instantaneous maximum current | 800A，≤1s | Max breaking current (A) | 2000A,(320VDC) 1 times | ||
| Coil voltage specification (DC) | 12V, 24V, etc. | Mechanical life (10k) | ≥30 | ||
| DC power consumption of coil | start current | ≤2.5A | Temperature rise on outgoing terminal (K) | ≤65 | |
| standby power | ≤4.0W | Temperature rise of coil (K) | ≤85 | ||
| Acting frequency | ≤1Hz | Material of contact | AgCuO(10) | ||
| Working duty | Continuous | ||||
| Mechanical/Ambient Conditions | |||||
| Torque of outgoing terminal on contact M5 (N.m) | ≯9.0 | Protection grade | IP67 | ||
| Leading mode of coil | High temperature insulated multiple-stranded CU wire | Mounting methods | Freely | ||
| Working temperature | (-40～＋85)℃ | Vibration | Sine shock, 2.5g, (5～50) Hz | ||
| Mounting altitude | ≤2Km | Impact | 50g，11ms (Half sine) | ||
| Coil Specification (20℃) | |||||
| Coil voltage (V) | Coil resistance (1±10%) Ω | ||||
| 12 | 3.0 | ||||
| 24 | |||||
UKD150H Fully Sealed High Voltage DC Contactor 150A 9-36V
UKD-H series High Voltage DC Contactor is primarily designed for reliable power switching control in critical DC power systems. Its key applications include electric buses, electric vehicles (EVs), EV charging piles, automotive air conditioning units, and telecom power equipment. It serves as a vital component for safely managing high-voltage DC circuits.
Free Quote NowKey Features
- Sealed with high-strength epoxy resin to eliminate arc leakage risk, ensuring no fire or explosion throughout its service life.
- Filled with nitrogen-based gas to prevent contact oxidation and burning, ensuring low and stable contact resistance.
- The contact area meets IP67 protection standard
- Dual coil high voltage DC contactor with Energy-Saving PCB
Applications
- Electric Buses & Electric Vehicles (EVs)
- EV Charging Piles / Stations
- Automotive Air Conditioning Systems
- Telecom Power Supplies
- Power Switching Control in DC Power Systems.
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