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
Professional DC contactor manufacturer and supplier from China, providing NF400A DC Contactor with bridge type, double break, silver cadmium oxide contacts, Coil voltage specification is 12V, 24V, 48V, 72V,.etc.
Ordering Notice
For example: NR400A-1/12V
The DC contactor of main contact is Bridge type, rated voltage not more than DC 96V, current 400A,
| Basic Technical Parameters (at normal conditions) | |||||
| Electric Parameters | |||||
| Contact type | One pair of bridge type moving close (NC) contacts |
Instantaneous maxi (closing) current | 7Ie,≤1s | ||
| Rated voltage of contacts (DC) | ≤96V | Insulation resistance(MΩ) | ≥100 | ||
| Rated current of contacts (A) | 400 | Dielectric withstand voltage | 1500V,p.f. 1min, no breakdown | ||
| Voltage drop on contacts(mV) | ≤80 (at 100A) | Electric cycles (104) | ≥2 | ||
| Coil voltage specification(DC) | 12V, 24V, 48V, 72V etc | Mechanical cycles (104) | ≥30 | ||
| DC power consumption of coil (W) | See coil parameter table | Temperature rise on outgoing terminal | ≤65 | ||
| Pickup voltage(DC) | ≤75%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) | ≤30 | Material of contact | AgCuO(10)/Cu | ||
| Release time(ms) | ≤50 | Working duty | Continuous operating duty | ||
| Mechanical/Ambient Conditions | |||||
| Torque of outgoing terminal on contact M10(N.m) |
≯18.0N appropriate | Protection grade | IP67 | ||
| Torque of outgoing terminal on coil M4(N.m) | ≯1.2N 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 | ||
| Start up | Keep | Start up | Keep | ||
| 12 | 3.3 | 24 | 60 | 24.4 | 661.5 |
| 24 | 5.68 | 81.8 | 72 | 33 | 1033 |
| 48 | 18.2 | 362 | 80 | 49.2 | 1066.7 |
Outline and Mounting Picture
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 supp