Junction boxes for 3 and more self -regulating heating cables connection are designed for connection of self-regulating electrical heating cables to the bower network and for the branching of self-regulating heating cables. The box also supports branching of the power cable in utility networks.

Accessories (to be ordered separately)

Connection kit for self-regulating heating cables is specified depending on the type of cable used.

Brackets PB, KP, PL.JB0606 – for mounting the box onto the pipeline.

Z-profile – for mounting the box onto a metal structure or onto a wall.

Metal pipe strap PFS/3 – for mounting the bracket onto the pipeline.

Technical Data

Dust and moisture protection rating – IP66
Explosion protection marking – Ех еb IIC Т6…Т3 Gb, Ex tb IIIC T85°C…, T165°C Db
Temperature group of the explosion hazard area – Т6
Operating ambient temperature range – -60…+55 °С
Operating voltage – max 550 V
Operating current – max 50 A
Enclosure dimensions – 160×160×94.5 mm
Total weight (maximum) – 2.76 kg
Material Box / Color – Glass fiber reinforced polyester / Black

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Connection kit for self-regulating heating cables is specified depending on the type of cable used.

Brackets PB, KP, PL.JB0606 – for mounting the box onto the pipeline.

Z-profile – for mounting the box onto a metal structure or onto a wall.

Metal pipe strap PFS/3 – for mounting the bracket onto the pipeline.

Cable entry unit LEK/U – for penetrating of thermal insulation.

Features

• Provides light indication of power voltage presence at the end of heating cable section and connection of cables to power network
• Compatible with all types of self-regulating electric heating cables
• High mechanical strength
• Critical component parts are included in the scope of supply. Metal pipe strap PFS/3, cable entry unit.
• Wide application range
• Quick and easy installation
• High thermal stability
• Non-corrosive
• Approved for installation in explosion hazard areas

Technical Data

Dust and moisture protection rating – IP66
Explosion protection marking – Ех db еb IIC Т6…Т3 Gb / Ex tb IIIC T85°C…T165°C Db
Temperature group of the explosion hazard area – Т6
Operating ambient temperature range –  -60…+55 °С
Operating voltage – max 550 V
Operating current – max 50 A
Electric life of the LED – >10 hours
LED power intake –  <1 W
Light source – green LED
View angle – 180°
Enclosure dimensions JB2221-223 – 122×120×91.5 mm
Enclosure dimensions JB2221-333 – 160×160×94.5 mm
Total weight (maximum) JB2221-223 – 1.55 kg
Total weight (maximum) JB2221-333 – 2.44 kg
Material Box / Color  – Glass fiber reinforced polyester / Black

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• Efficient solution for power supply and input of self-regulating heating cables connection through thermal insulation in electric heating cable systems
• Compatible with all types of self-regulating electric heating cables
• Excludes the risk of damage to heating cables at connection points
• Approved for installation in explosion hazard areas
• Critical components are included in the scope of supply. Metal pipe strap PFS/3, cable entry unit and flexible sealed gland FSG to be ordered separately.
• Wide application range
• Quick and easy installation
• High thermal stability
• Non-corrosive

Application Areas

The box allows connection of up to three self-regulating electric heating cables to the power cable and connection of up to three cables for branching.

Technical Data

Dust and moisture protection rating – IP66
Explosion protection marking – Ex eb IIC T6…T3 Gb, Ex tb IIIC T85°C…, T165°C Db
Temperature group of the explosion hazard area – Т6
Operating ambient temperature range - -60…+55 °С
Operating voltage – max 550 V
Operating current – max 50 A
Enclosure dimensions JB 2221-223 – 122×120×91.5 mm
Total weight (maximum) – 1.55 kg
Material Box / Color-  Glass fiber reinforced polyester / Black
Material Pipe installation support / Color – Glass fiber reinforced polyester / Black

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