The products are mainly used to control switching on/off of power supply of storage battery car, electric forklift, electric winch, electric car, excavator, air conditioner in vehicle
Application
ZJQ 300A DC Contactor is used to control the power on and off of battery trucks, electric forklifts, electric winches, electric vehicles, excavators, and in-car air conditioners.
Ordering Notice
For example: ZJQ300A/12V The DC contactor of main contact is NO, rated voltage not more than DC80V, current 300A, coil
| Basic Technical Parameters (at normal conditions) | |||
| Electric Parameters | |||
| Contact type | A set of NO | Instantaneous maxi (closing) current | 7Ie,≤1s |
| Rated voltage of contacts (DC) | ≤80V | Insulation resistance(MΩ) | ≥100 |
| Rated current of contacts (A) | 300 | Dielectric withstand voltage | 1500V,p.f. 1min, no breakdown |
| Voltage drop on contacts(mV) | ≤80 | Electric cycles (104) | ≥2 |
| Coil voltage specification(DC) | 12V, 24V, 48V, 72V etc | Mechanical cycles (104) | ≥30 |
| DC power consumption of coil (W) | ≤38 | Temperature rise on outgoing terminal | ≤65 |
| Pickup voltage(DC) | ≤70%Us | Temperature rise of coil(K) | ≤85 |
| Release voltage(DC) | ≥5%Us;≤40%Us | Insulation grade of enameled wire | Class B (130°C) |
| Pickup time(ms) | ≤50 | Material of contact | AgCuO(10)/Cu |
| Release time(ms) | ≤50 | Working duty | Continuous operating duty |
| Mechanical/Ambient Conditions | |||
| Torque of outgoing terminal on contact M8(N.m) |
≯7.0N appropriate | Protection grade | IP50 |
| Torque of outgoing terminal on coil M5(N.m) |
≯2.5N appropriate | Mounting methods | Freely |
| Working temperature | (-25~+55)°C | Vibration | Sine shock: 2.5g, (5~50) Hz |
| Mounting altitude | ≤2Km | Impact | 50g,11ms(Half sine) |
| Conversion Table for Coil Specification(20°C) | |||
| Voltage(V) | Coil resistance(1±10%)Ω | Voltage(V) | Coil resistance(1±10%)Ω |
| 12 | 3.8 | 60 | 95.6 |
| 24 | 17.4 | 72 | 152.5 |
| 48 | 69.5 | 80 | 186.7 |
Outline and Mounting Picture
The products are mainly used to control switching on/off of power sup
The products are mainly used to control switching on/off of power sup