Jining Donghong Machinery Co., Ltd
Quality supplier of drilling rig parts for Bomco,Lanzhou LS, Honghua, Sj petro, Rg Petro, Beijing BPM, Shenkai, Kingdream, CCDC

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CONTACTOR DC CCZ38–1250Q/10 
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DC contactor CCZ38–1250Q/10 is mainly used for frequent start,dynamic breaking, jogging, reverse rotation and reversal connection braking, also for making and breaking DC circuit in a far distance.



Ue V:1000

1e A:1250

1th A:1250


Normal working & installation conditions

1. Ambient air temperature: - 25℃~+40℃

2. Altitude of installation site:≤2500m;

3. Relative humidity should not exceed 90% ( average temperature in the wettest month should not exceed +25℃);

4. Pollution degree of contactor: 3

5. Installation category of contactor: II

6. Inclination between installation plane and vertical plane:≤10° ;

7. Vibration: Can bear vibration of frequency 10~ 50Hz and acceleration 1g in the vertical, horizontal and longitudinal direction for 2hours; and can bear the impact and vibration of 10Hz and 3g in the longitudinal direction for 2mins.


Product structure and performance features

1. Simple and reasonable structure, small volume, light weight, convenient installation;

2. Arc chute adopts the combined structure of labyrinth porcelain arc extinguishing chamber and anti- arc plastic housing, with perfect arc striking and arc extinguishing, light burning loss of contact,short arcing time, small flashover distance, firmness, convenience in assembling and disassemblingfor maintenance;

3. The contactors are designed into the composite structure of main contact and arc contact, provided with the arc strike angle, presents perfect in arc extinguishing;

4. Pull-in coil is made with the most advanced international plastic encapsulation technology, with ideal insulation strength and mechanical strength, not easy to be damaged. The contactors are provide with additional electronic adapter that is connected with the encapsulated coil, can bring large electromagnetic attraction. The temperature rise is low with the coil passing voltage, therefore, it hardly takes external electromagnetic interference, with high reliability.

5. Perfect flame retardant performance

6. Reliable vibration resistance


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