445009, Samara region, mountains. Tolyatti st.
Novozavodskaya 2a, building 309
Novozavodskaya 2a, building 309
Explosion-proof boxes, models: KVMK 1.0 Exd-A-ХХХ… Х, KVMK 1.0 Exd-Н-ХХХ… Х, are designed to connect (branch) general-purpose and special-purpose electrical circuits (power circuits, control circuits, signaling circuits, etc.) in hazardous areas. These boxes are used for the entry of armored and unarmored round or flat electrical cables, as well as cables in metal sleeves.
The material used for the production of boxes and Ex components is aluminum alloy or stainless steel.
The boxes 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 boxes have various options for explosion-proof connections in accordance with the requirements of GOST IEC 60079-1-2013, and are manufactured both by welding for stainless steel and by casting for aluminum alloy.
These boxes are classified as electrical equipment of groups I, II, and III according to GOST 31610.0-2014 and are intended for use in hazardous areas of indoor and outdoor installations in accordance with explosion protection markings. 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, IIB+H2, IIC, and dust IIIC.
| Junction box of the KVMK series, model range: KVMK 1.0 Exd-A-ХХХ… Х, KVMK 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 IIB T6… T3 Gb X / Ex tb IIIС T80°C… T190°C Db X AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAElkSpMAAABRdFJOUwABAgMEBQcICQoLDBIWFxgZGiQpKyw1PT5JTlFSW2NkZXFyc4KDhIWGh4m Ki42Oj5CRkpOen6OoqrG1tre6vsHDy87Q0dXX2Ojt8fLz9Pj5/RV09LwAAAAJcEhZcwAAFxEAABcRAcom8z8AAAC1 SURBVChTTdDVDgJBDAXQiy/u7rLI4u62uNP//xkamEno20lz27TQtUpZrTZ+pelowWRTIKuJNlaX18gk3GefaJk3/v l48wlJe4Sk/ULCV7vQz4dnMYZALoh0Al32nmiGME1iNETn2y/FgcV994iKvI2TUaK54W++c0sZuc/Ldh2pIO1mp4j WytcnGmdh2Z+nlESPvbm/x4hce6HbgPe1YFbsBsABKFa+n/+j8n80tVZXK5r+AYieIFLyjtoyAAAAAElFTkSuQmCC" /> 1Ex db IIB+H 2 T6… T3 Gb X / Ex tb IIIС T80°C… T190°C Db X 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 | flat connection (flanged) |
| Internal volume, cm 3 | more than 2000 |
| Degree of protection of the shell according to GOST 14254-2015 | IP66/IP67 |
| 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 | Body weight, no more than |
| Aluminum alloy | ||||
| KVMK 1.0 Exd-A-281812 | 284x184x117 mm | 205x100x78 mm | 171x160 mm | 10 kg |
| KVMK 1.0 Exd-A-302021 | 304x204x204 mm | 220x120x158 mm | 204x230 mm | 10 kg |
| KVMK 1.0 Exd-A-362821 | 365x285x209 mm | 275x195x155 mm | 209x260 mm | 16 kg |
| KVMK 1.0 Exd-A-423222 | 427x327x225 mm | 333x233x169 mm | 225x320 mm | 22 kg |
| KVMK 1.0 Exd-A-573926 | 575x395x260 mm | 460x280x196 mm | 260x460 mm | 40 kg |
| KVMK 1.0 Exd-A-725235 | 725x525x353 mm | 597x397x277 mm | 600x500 mm | 88 kg |
| KVMK 1.0 Exd-A-896745 | 890x670x445 mm | 720x500x344 mm | 670x616 mm | 165 kg |
| Stainless steel | ||||
| KVMK 1.0 Exd-N-281811 | 284x184x117 mm | 205x100x78 mm | 171x160 mm | |
| KVMK 1.0 Exd-N-302021 | 304x204x211 mm | 220x120x158 mm | 204x230 mm | |
| KVMK 1.0 Exd-N-333321 | 335x335x210 mm | 245x245x162 mm | 230x325 mm | |
| KVMK 1.0 Exd-N-422221 | 425x225x210 mm | 140x340x165 mm | 350x230 mm | |
| KVMK 1.0 Exd-N-362827 | 364x284x275 mm | 200x280x155 mm | 260x280 mm | |
| KVMK 1.0 Exd-N-362821 | 364x284x215 mm | 275x195x155 mm | 209x260 mm | |
| KVMK 1.0 Exd-N-423229 | 420x320x295 mm | 240x340x236 mm | 320x316 mm | |
| KVMK 1.0 Exd-N-423222 | 420x320x220 mm | 333x233x169 mm | 225x320 mm | |
| KVMK 1.0 Exd-N-464621 | 460x460x213 mm | 360x360x152 mm | 355x446 mm | |
| KVMK 1.0 Exd-N-464626 | 465x465x265 mm | 360x360x202 mm | 355x450 mm | |
| KVMK 1.0 Exd-N-573926 | 576x396x268 mm | 460x280x196 mm | 260x460 mm | |
| KVMK 1.0 Exd-N-573931 | 576x396x315 mm | 460x280x196 mm | 460x380 mm | |
| KVMK 1.0 Exd-N-654533 | 650x450x335 mm | 540x340x270 mm | 530x435 mm | |
| KVMK 1.0 Exd-N-654526 | 650x450x265 mm | 540x340x200 mm | 530x435 mm | |
| KVMK 1.0 Exd-N-725235 | 723x523x359 mm | 597x397x277 mm | 600x500 mm | |
| KVMK 1.0 Exd-N-725224 | 723x523x249 mm | 597x397x169 mm | 600x504 mm | |
| KVMK 1.0 Exd-N-896745 | 891x671x455 mm | 720x500x344 mm | 670x616 mm | |
| KVMK 1.0 Exd-N-896735 | 891x671x355 mm | 720x500x245 mm | 670x620 mm | |
| KVMK 1.0 Exd-N-1045839 | 1045x588x389 mm | 850x400x315 mm | 710x530 mm | |
| KVMK 1.0 Exd-N-1077740 | 1070x770x404 mm | 850x550x314 mm | 810x700 mm | |
22.44.01.02993.141. Type Approval Certificate of the Russian Maritime Register of Shipping EAEU No. RU D-RU.PA03.B.09487/25. Declaration of Conformity to TR CU 004/2011 "On the Safety of Low-Voltage Equipment" EAEU No. RU D-RU.PA03.B.09487/25. Declaration of Conformity to TR CU 020/2011 "Electromagnetic Compatibility of Technical Equipment" EAEU RU C-RU.AZh58.B.02767/22. Certificate of Conformity to TR CU 012/2011 "On the Safety of Equipment for Operation in Explosive Environments" Questionnaire for ordering KVMK junction boxes 
