Explosion-proof control stations, models: PKV MK 2.3 Exd-A-ХХХ… Х, PKV MK 2.3 Exd-Н-ХХХ… Х, are designed for switching, control and indication of operating modes of electrical circuits of alternating and direct current of industrial frequency in explosive zones, as well as for connecting armored and unarmored electrical cables of round or flat cross-section in a metal sleeve or pipe.
The material used for the production of control posts is aluminum alloy or stainless steel 12X18H10T.
Control posts are provided with the following types of explosion protection: GOST IEC 60079-1-2013 "flameproof enclosures "d"" and GOST IEC 60079-31-2013 equipment with dust ignition protection by enclosures "t".
The equipment belongs to electrical equipment groups I, II, and III according to GOST 31610.0-2014 and is intended for use in hazardous areas of indoor and outdoor installations in accordance with the explosion protection marking. The equipment can be used in hazardous areas of classes 0, 1, and 2 according to GOST IEC 60079-10-1-2011, as well as in mines and pits according to GOST 31439-2011 (EN 1710:2005). The environment may contain explosive mixtures of gases and vapors with air of categories IIA, IIB, IIC, and dust IIIC.
| Control posts of the PKV series, model range: PKV MK 1.0 Exd-A-ХХХ… Х, PKV MK 1.0 Exd-Н-ХХХ… Х. |
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| Stainless steel marking for group electrical equipment I and III |
 РВ Ex db I Mb X / Ex tb IIIС T80°C… T190°C Db X |
| Marking for stainless steel and aluminum alloy for electrical equipment groups II and III |
1Ex db IIC T6… T3 Gb X / Ex tb IIIС T80°C… T190°C Db X |
| Body material | stainless steel aluminum alloy |
| Housing material for mine applications | stainless steel |
| Type of explosion-proof connection | cylindrical connection |
| Internal volume, cm 3 | more than 2000 |
| Degree of protection of the shell according to GOST 14254-2015 | IP66 |
| Ambient temperature under operating conditions | T6 - from -60°C to +80°C T5 - from -60°C to +95°C T4 – from -60°C to +130°C T3 - from -60°C to +180°C |
| Temperature class according to GOST 31610.0-2014. | T6, T5, T4, T3 |
| Climatic performance | HL (F), UHL (NF), OM (MU) |
| Switching current, A - alternating current - direct current |
no more than 800 no more than 800 |
| Switching voltage, V - alternating current - direct current |
no more than 1000 no more than 1000 |
| Model | Overall dimensions without cable entries and external components |
Internal space according to the mounting panel | Installation dimensions |
| Aluminum alloy | |||
| PKV MK 2.3 Exd-A-121211 | 120x120x107 mm | 94x94x69 mm | 100x145 mm |
| PKV MK 2.3 Exd-A-151512 | 151x151x113 mm | 124x124x78 mm | 126x174 mm |
| PKV MK 2.3 Exd-A-171713 | 175x175x120 mm | 146x146x85 mm | 150x195 mm |
| PKV MK 2.3 Exd-A-232316 | 235x235x146 mm | 203x203x106 mm | 196x267 mm |
| PKV MK 2.3 Exd-A-272722 | 277x277x195 mm | 248x248x152 mm | 236x316 mm |
| PKV MK 2.3 Exd-A-434329 | 430x430x235 mm | 395x395x182 mm | 390x480 mm |
| Stainless steel | |||
| PKV MK 2.3 Exd-N-171713 | 175x175x120 mm | 146x146x85 mm | 150x195 mm |
| PKV MK 2.3 Exd-N-232316 | 235x235x146 mm | 203x203x106 mm | 196x267 mm |
| PKV MK 2.3 Exd-N-272722 | 277x277x195 mm | 248x248x152 mm | 236x316 mm |
| PKV MK 2.3 Exd-N-434329 | 430x430x235 mm | 395x395x182 mm | 390x480 mm |
EAEU No. RU D-RU.PA03.B.11966/25. Declaration of Conformity to TR CU 020/2011 - "Electromagnetic Compatibility of Technical Equipment" EAEU No. RU D-RU.PA03.B.11966/25. Declaration of Conformity to TR CU 004/2011 "On the Safety of Low-Voltage Equipment" EAEU RU C-RU.AZh58.B.03102/22. Certificate of Conformity to TR CU 012/2011 "On the Safety of Equipment for Work in Explosive Environments" 
