1. For the dangerous sites with explosive air mixture: 1 division、2 division; 2. Flammable gas, steam class:ⅡA、ⅡB; 3. Temperatures classification:T1~T4; 4. Indoor and outdoor(IP54).
1. Apply to 50Hz、380V,13~125KW 3-Phase asynchro- nous motors infrequently start and stop; 2. Al-alloy diecasted or steelplate welded shell with plastic-sprayed surface; 3. Inside mounted breaker, AC contactor, thermal-relay, time relay, changeover switch and indicator, etc; 4. Delay automatic time-control relay can be set within 0.4~60 seconds; 5. Apply to 8 hours work system, continuity work system and continuous period work system the operation cyclic per hour. The interval time of twice continuously sarts is not less than 90 seconds; 6. Possessing the guarding function against overload and phase failure, etc; 7. Steelpipe and cable wiring. 8. Can be customized according to users requirements. 9. Suitable for GB3836-2000、IEC60079, GB12476.1-2000、 IEC61241 standard request.