Explosion-proof thermoregulators RIZUR-TB-FB and RIZUR-TB-FT

RIZUR-TB explosion-proof thermoregulators are used for control and maintenance of required ambient air temperature in heating/cooling systems that protect the equipment against excessively high/low temperatures and significant fluctuations that are averse to time and stability of performance of such control and measurement equipment.

Intended use and application area

Explosion-proof thermoregulators RIZUR-TB manufactured by OOO «NPO RIZUR» comply with TU-3442-003-12189681-2014, GOST R MEK 60079-0-2011, GOST R MEK 60079-7-2012, GOST R MEK 60079-18-2012 as high-reliability electric equipment with Ex-protection class “compound sealing” (m)», GOST IEC 60079-1-2011 as equipment with Ex-protection "explosion-proof casing "d", intended for use in explosion-hazardous gas areas, and are marked as 1Exmb IIC T6 Gb X, 1 Exd IIC T6 GbХ (depending on the version). According to the Ex-marking, Ch. 7.3 of PUE (Electrical installation code) and other regulatory documents governing the use of electrical equipment in hazardous areas these heaters can be used in explosion-hazardous areas of internal and external facilities.

RIZUR-TB explosion-proof thermoregulators are used for control and maintenance of required ambient air temperature in heating/cooling systems that protect the equipment against excessively high/low temperatures and significant fluctuations that are averse to time and stability of performance of such control and measurement equipment.

RIZUR-TB-F*

Thermoregulator RIZUR-TB-F is an explosion-proof version, based on a bimetallic thermostat. This bimetallic thermostat is used for connecting and disconnecting power and low-signal electric circuits at a set temperature. The base of the thermostat is a bimetallic disc, tightly integrated with a group of electric contacts and undergoing deformation when the temperature changes. All electric elements of the thermostat have a metal housing. The standard version is designed for use in ambient air temperature ranging from 10°С to 20°С. The temperature range can be different upon request.

In a RIZUR-TB-F* thermoregulator with an Ex-protection class explosion-proof housing "d", the metal housing is explosion-proof.

In a RIZUR-TB-F* thermoregulator with an Ex-protection class «compound sealing (m)», all cavities of the thermostat’s housing are filled with thermoresistant heat-conductive compound.

The RIZUR-TB-F* thermoregulator has three design variants.

1. RIZUR-TB-F - Built-in compact design of the thermoregulator based on a bimetallic thermostat. RIZUR-TB-F can help maintain the temperature range of +10°С to +20°С (not including the thermal lag of the thermoregulator’s body). The thermoregulator is shipped with a power cable. Cable length is specified in the ordering code (the standard cable length is 1 m). Such design is possible only with the Ex-marking 1ExmbIICT6GbX.

2. RIZUR-TB-FB - Compact design of the thermoregulator. The thermoregulator is shipped with a power cable. Cable length is specified in the ordering code (the standard cable length is 1 m). If requested, it can also be shipped with a junction box for connection to the heater and power cable. Such design is possible only with the Ex-marking 1ExmbIICT6GbX.

3. RIZUR-TB-FT- Integral design of the thermoregulator. In this design, the thermoregulator is located in/on a metallic housing (depending on the Ex-marking). This housing also performs the function of a junction box, meaning that there's a terminal block inside and Ex-protected cable glands for power cables outside. Such design is possible only with the Ex-markings 1ExmbIICT6GbX and 1ExdIICT6GbX.


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Model

 RIZUR-TB-FB 

      RIZUR-TB-FT

Installation area

General industrial areas

Explosion hazard zones V-1а and V-1g acc. to Ch. 7.3 of PUE

Explosion-proof marking

1ExmbllCT6GbX

1ExdllCT6GbX, 1ExmbllCT6GbX

Temperature control

bimetallic thermostat

Heating element power

up to 1000 W

Supply voltage

220 (±15%)V, 24,36-48 V AC/DC

(upon an agreement with the manufacturer)

Temperature maintained on the surface

+90°С (others are available upon an agreement with the manufacturer)

Temperature maintained inside

+10°С/+20°С (others are available upon an agreement with the manufacturer)

Ingress protection

IP54

IP54/IP67 (RIZUR-КС)

Preset temperature limit alarm

without

Warranty period

24 months

Average operation time

over 10 years

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