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
NR500A DC Contactor for the generator has silver alloy contacts, all-copper coils, and is compact in size. It is used in generators of electric vehicles. The main contact DC contactor is a normally open one.
Ordering Notice
For example: NR500A/12V
The DC contactor of main contact is one NO, rated voltage not more than DC 80V, current 500A, coil
| Basic Technical Parameters (at normal conditions) | |||
| Electric Parameters | |||
| Contact type | One pair of bridge type moving open (NO) contacts |
Instantaneous maxi (closing) current | 2000A, ≤1s |
| Rated voltage of contacts (DC) | ≤80V | Insulation resistance(MΩ) | ≥100 |
| Rated current of contacts (A) | 500 | 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) | 15V | Mechanical cycles (104) | ≥30 |
| DC power consumption of coil (W) | ≤10.5 | Temperature rise on outgoing terminal | ≤65 |
| Pickup voltage(DC) | ≤70%Ue(Positive power up) | Temperature rise of coil(K) | ≤85 |
| Release voltage(DC) | ≥5%Ue;≤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 M8(N.m) |
≯8.5N appropriate | Protection grade | IP50 |
| Coil lead end thickness(mm) | ≯1.2 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 | 14.1 | 36 | 136.5 |
| 15 | 22 | 48 | 235.5 |
| 24 | 60.5 | 72 | 516 |
Outline and Mounting Picture
| Basic size(mm) | Tolerance size(mm) |
| 0～30 | ±0.2 |
| 30～60 | ±0.3 |
| 60～100 | ±0.5 |
| ＞100 | ±0.1 |
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