BQC-series explosion-proof control panel are products designed and manufactured in strict accordance with Chinese national standards：
● GB 3836.1－2010 Explosive atmospheres - Part 1: General requirements for equipment
● GB 3836.2-2010 Explosive atmospheres - Part 2: Equipment protected by a flameproof enclosure "D"
● GB 3836.3-2010 Explosive atmospheres - Part 3: Equipment protected by increased safety type "E".
This product is not suitable for coal mines, explosives and places with strong corrosivity.
Working conditions
Model Description
Technical parameters
1.Altitude: no more than 2000 meters;
2.Ambient temperature: -20℃～+40℃；
3.Atmospheric conditions;
●The relative humidity of the surrounding air is not more than 95% (at 25°C);
●Can be used in explosive atmospheres (see scope of application)；
●In gas and vapor environments that do not significantly damage insulation；
●Pollution level: level 3；
4. Installation category: Class II；
5. Where there is no significant shaking and shock vibration.
6. Use in Class II (other explosive environments except coal mines), Zone 1 and Zone 2 hazardous locations of Class IIA and IIB explosive environments,and places below T4 and T4. control the starting of three-phase squirrel cage asynchronous motor,and can also protect the motor and related circuits when at ac 50Hz, rated voltage 380V, rated current 33A, 43A, 60A, 78A, 104A, 148A.
| Model | Maximum power (KW) | Rated voltage（V） | Rated current（A） | Rated phase current（A） | Delay setting delay value(S) |
| BQC-17 | 17 | 380 | 33 | 19 | 11 |
| BQC-22 | 22 | 380 | 43 | 25 | 13 |
| BQC-30 | 30 | 380 | 60 | 35 | 15 |
| BQC-40 | 40 | 380 | 78 | 45 | 16 |
| BQC-55 | 55 | 380 | 104 | 60 | 20 |
| BQC-75 | 75 | 380 | 148 | 85 | 24 |
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