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
300A/12V DC Contactor ZJQ 300H is designed to adopt standard modularity and uses minimal parts to assemble the contactor. The rated voltage is not greater than DC80V, and the current is 300A.
Ordering Notice
For example: ZJQ300H/12V The DC contactor of main contact is NO+NC, rated voltage not more than DC80V, current 300A, coil
| Basic Technical Parameters (at normal conditions) | |||
| Electric Parameters | |||
| Contact type | A set of NO+NC | 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) |
≯8.5N appropriate | Protection grade | IP50 |
| Coil wiring screw M5 | M5 | 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 supp
The products are mainly used to control switching on/off of power sup