Explosion-proof junction box RIZUR-KC-A Exe (made of aluminium alloy)

The housing of RIZUR-KC-A is made of aluminium alloy resistant to the negative impact of the environment and various chemicals, including hydrochloric acid and hydrogen sulphide vapor. The box consists of a body and a lid, connected with the screws. RIZUR-KC sealing system has a labyrinth form and provides protection of more than IP66. Inside the boxes, there're explosion-proof spring clips\terminal screws with either "e" or "ia" protection marking (depending on the design version). The boxes' walls have cable glands for different types of cables, sockets, plugs, valves, etc.
All the fastenings are made of corrosion-resisting steel.


Explosion-proof junction boxes RIZUR-KC are manufactured according to TU-3442-001-12189681-2014 and are designed for the connection and fan-out of the power cables in the AC and DC networks of the automation and telemechanics systems. Operational safety of RIZUR-KC junction boxes at the hazardous objects is confirmed by the conformity certificates of the Customs Union "Safety of equipment intended for use in explosive atmospheres" №ТS RU C-RU.ME92.B.00219 and №ТS RU CRU.ME92.B.00658 and a Certificate of conformity to industrial safety requirements № С-RТE.002.ТU.00198.

Design description

Explosion-proof junction boxes RIZUR-KC have a body and a lid made of materials resistant to the negative impact of the environment and various chemicals, including hydrochloric acid and hydrogen sulphide vapor. RIZUR-KC sealing system has a labyrinth form and provides protection of more than IP66.

Inside the boxes, there're explosion-proof spring clips\terminal screws with either "e" or "ia" protection marking (depending on the design version). The boxes' walls have cable glands for different types of cables that secure the cable and prevent moisture and dust from getting inside.

The number of cable glands and terminal blocks, their dimensions and location are chosen by the Customer.

Application area

Junction boxes RIZUR-KC are installed in the hazardous areas of inside and outside facilities in accordance with the markings, industry safety requirements, and recommendations of the manufacturer. The material and special coatings allow RIZUR-KC to be used in wet and dust-filled rooms with a highly aggressive environment, off-shore facilities, and watercraft.

Junction boxes RIZUR-KC have a wide range of applications:

  • crude-oil production and transportation,
  • natural gas production and transportation,
  • oil refineries,
  • chemical plants,
  • ferrous and non-ferrous industry,
  • pulp and paper industry,
  • food industry,
  • power industry (TPP, HEP, SDPP, boiler systems),
  • maritime and river transport,
  • waste disposal,
  • sewerage system,
  • water supply system.
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Dimensional specifications

Design variant KС Dimensions (A x B x C), mm    Mounting dimensions (D x E x ø d), mm   
RIZUR-KC-A-090907 90 х 90 х 70 73 х 73 х 6.3
RIZUR-KC-A-111109 112 х 112 х 91 94 х 94 х 6.3
RIZUR-KC-A-151511 150 х 150 х 107 131 х 131 х 6.3
RIZUR-KC-A-1711091 172 х 112 х 91 154 х 94 х 6.3
RIZUR-KC-A-181810 180 х 180 х 100 160 х 130 х 7
RIZUR-KC-A-221505 222 х 146 х 55 210 х 134 х 3.2
RIZUR-KC-A-232011 230 х 200 х 110 180 х 180 х 7
RIZUR-KC-A-232018 230 х 200 х 180 180 х 180 х 7
RIZUR-KC-A-261609 260 х 160 х 90 240 х 140 х 3.2
RIZUR-KC-A-281810 280 х 180 х 100 260 х 130 х 7
RIZUR-KC-A-361609 360 х 160 х 90 340 х 110 х 7

Explosion protection marking

1Ех e IIС Т6 Gb/Ex tb IIIC Т80 °С Db

or 1Ех e IIС Т5 Gb/Ex tb IIIC Т95 °С Db

or 1Ех e IIС Т4 Gb/Ex tb IIIC Т130 °С Db

or 1Ex d IIC Т6 Gb/Ex tb IIIC Т80 °СDb

or 1Ех d IIС Т5 Gb/Ex tb IIIC Т95 °С Db

or 1Ех d IIС Т4 Gb/Ex tb IIIC Т130 °С Db

or 1Ex d IIВ Т6 Gb/Ex tb IIIC Т80 °С Db

or 1Ех d IIВ Т5 Gb/Ex tb IIIC Т95 °С Db

or 1Ех d IIВ Т4 Gb/Ex tb IIIC Т130 °С Db

or 0Ex ia IIC T6 Ga X, 1Ex ib IIC T6 Gb X,

2Ex ic IIC T6 Gc X

Ingress protection, IP

IP65 or IP66 or IP67 or IP68

Nominal voltage, V

380 V (can be different on request)

Nominal current, А (for a group of terminal blocks)

24 А (can be different on request)

Operating position

any kind

Ambient temperature, °С

-60 °С….+85°С

Cable glands placement

upon the customer's specification (it's possible to supply just the housing without cable glands or terminal blocks)

Housing dimensions

depending on the design version of the junction box and the number of cable glands and terminal blocks

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