- Heating Cables
- Self-Regulating Heating Cables
- Self-Regulating Heating Cable HTM
- Self-Regulating Heating Cable HTA
- Self-Regulating Heating Cable HTP
- Self-Regulating Heating Cable BTC
- Self-Regulating Heating Cable BTCe
- Self-Regulating Heating Cable BTX
- Self-Regulating Heating Cable BTXe
- Self-Regulating Heating Cable CTE
- Self-Regulating Heating Cable VTM
- Self-Regulating Heating Cable VTL
- Self-Regulating Heating Cable VTR
- Self-Regulating Heating Cable LTM
- Self-Regulating Heating Cable LTL
- Self-Regulating Heating Cable LTR
- Series-Resistance Heating Cables
- Mineral-insulated cables
- Self-Regulating Heating Cables
- Connection Technology
- Junction Boxes
- Explosion Proof Polyester Enclosure
- Junction Box ECO CB
- Junction Box for Heating Cable with Mineral Insulation
- Junction Box for Light Indication
- Junction Box for Power Cables Connection
- Junction Box for Self-Regulating Heating Cables to Power Connection
- Junction Box for Self-Regulating Heating Cables to Power Connection (UVK)
- Junction Box for Series Resistance Heating Cable
- Junction Boxes for Connection of Data, Control and Signal Cables
- Junction Boxes for Connection of Heating Cables with Mineral Insulation
- Junction Boxes for Light Indication and Connection of Heating Cables to Power Supply
- Junction Boxes for Self-Regulating Heating Cables
- Junction Boxes for Self-Regulating Heating Cables (3 and More Circuits)
- Junction Boxes for Series-Resistance Cables
- Junction Boxes for Three-Phase Series-Resistance Heating Cables Connection
- Cable Glands
- Connection Kits & Accessories
- Junction Boxes
- Commercial De-icing Systems
Junction Box for Power Cables Connection
Features
- Efficient solution for power supply cables connection in electrical heating systems
- All required component parts included in the scope of supply
- Wide application range
Application Areas
Approved for installation in explosion hazard areas
Approvals
Junction boxes JB2221-544-2X(11-59) are designed for power distribution during installation, repair and upgrade of power cables and utility networks in explosion hazard areas.
The box is mounted onto a nearby metal structure. The box allows connection of up to six power cables.
The enclosure design ensures moisture and dust ingress protection IP66 and high corrosion stability.
The box has following cable glands:
- up to two glands for unarmored cable with a diameter of 14 to 25 mm or armored cable with a diameter of 17 to 26.3 mm (for models JB2221-544-21(11-38)) or armoured cable with a diameter of 23.5 to 33.6 mm (for models JB2221-544-21(39-59)).
- up to four glands for unarmored cable with a diameter of 7 to 18 mm or armored cable with a diameter of 12 to 20 mm.
The installed terminal blocks allow the connection of multi-core or single-core wires with a cross-section of 2.5 to 35 mm2.
- Efficient solution for power supply cables connection in electrical heating systems
- All required component parts included in the scope of supply
- Wide application range
- Quick and easy installation
- High thermal stability
- Non-corrosive
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 | T6 |
| Operating ambient temperature range | −60 ... +55 °С |
| Operating voltage | max 750 V |
| Operating current | max 109 A |
| Enclosure dimensions | 250×255×120 mm |
| Total weight (maximum) | 5.80 kg |
| Material box | Glass fiber reinforced polyester |
| Color | Black |