11kV 33kV Junction Boxes & Electrical Enclosures
11kV 33kV Junction Boxes & Electrical Enclosures
Product Codes: ABTECH HVJB, HVJB125, ABJB, ABJB125, 4TJB & 4TJB125
ABTECH’s high voltage junction boxes and electrical enclosures, including the HVJB, ABJB, HVJB 125, ABJB 125, 4TJB, and 4TJB/125, offer reliable solutions for high-voltage installations up to 45kV. These 11kV junction boxes and 33kV junction boxes are suitable for Zone 1/21 hazardous areas, combining compact, corrosion-resistant designs with versatile mounting options.
Ideal for power generation, distribution, and process facilities, each 11kV junction box and 33kV junction box ensures safe, efficient connection and protection of high-voltage networks. Fully type-tested to meet stringent safety standards, the range delivers long-term performance for indoor and outdoor high-voltage applications.
GO TO DOWNLOADSJunction Boxes 11kV 33kV Overview
ABTECH’s high-voltage junction boxes provide safe and certified termination of 11kV and 33kV power cables in Zone 1 and Zone 21 hazardous areas. Covering the HVJB, ABJB and 4TJB ranges, these stainless-steel enclosures offer reliable high-voltage connection and distribution for both onshore and offshore installations.
Designed for flexibility, the range supports bottom-entry or through-box configurations and can accommodate multiple phase connections. The –125 dual-compartment variants allow separate termination of power, fibre optic and control cables, making them ideal for multi-use and umbilical systems. With IP66 and DTS-01 deluge testing, plus ATEX and IECEx certification, ABTECH’s 11kV junction box and 33kV junction box solutions deliver long-term durability in demanding hazardous area environments.
Contact our experienced team to discuss your requirements or request a quotation for ABTECH 11kV and 33kV junction boxes. Thorne & Derrick International, based in the UK, are trusted suppliers of high-voltage junction boxes and electrical enclosures, providing expert technical advice, competitive pricing, and fast worldwide delivery for both onshore and offshore projects.
High Voltage Junction Box Specifications
Key HV Junction Box Benefits
✔ Stainless Steel : 316L (1.404)
✔ Fault rated 50kA 1.0 sec
✔ IP66 to EN60529
✔ DTA-01 deluge tested
✔ Zone 1 & 21, Gas & Dust
✔ Up to 45kV
✔ Suited to operation in tough offshore conditions
✔ Suitable for heavy industrial use where high levels of ingress & mechanical protection are required
✔ Applications including umbilical connection, water injection and downhole pumps, fire suppression systems and temporary power connections
11kV & 33kV Junction Box Ranges
ABTECH
Thorne & Derrick are a specialist distributor of ABTECH hazardous area enclosures and HV junction boxes, providing expert technical support, competitive pricing and fast worldwide delivery across the full ABTECH product portfolio.
The ABTECH HVJB, ABJB and 4TJB product ranges include specialist 11kV and 33kV high-voltage junction boxes, designed for safe power distribution in Zone 1 and Zone 21 hazardous areas. These stainless-steel enclosures support applications such as power transmission, umbilical systems, pumps, instrumentation and control circuits. All products are certified to ATEX, IECEx and UKCA standards to ensure compliant installation in potentially explosive atmospheres.
Each product range supports specific use cases, from 11kV and 33kV industrial distribution through to 66kV grid infrastructure, high-current busbar systems up to 3000A and submersible or fibre-integrated enclosures for offshore and specialist applications.
| Voltage Range | Typical Applications | Enclosure Type | Product Range |
|---|---|---|---|
| 11kV | Modular power distribution & busbar segregation | HV High-Voltage Busbar Box |  |
| Designed for high-current power distribution where multiple feeders or connections are required within a compact enclosure. These solutions support controlled power routing, fault containment and efficient maintenance access in substations and industrial facilities. | |||
| Up to 45kV | High-current distribution, heavy industrial processes, power plants | High-Power 3kA HV Junction Boxes |  |
| Designed for extreme electrical loads, high-power HV junction boxes support currents up to 3000A (3kA). These enclosures are typically specified for heavy industrial processes, power generation plants and specialist distribution systems where thermal management and fault rating are critical. |
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| 66kV | Grid infrastructure, substations, renewable energy transmission | 66kV HV Junction Boxes |  |
| 66kV junction boxes are engineered for high-voltage transmission and grid-level applications, offering enhanced insulation, creepage distances and fault ratings. These enclosures are commonly used in substations, renewable energy projects and critical infrastructure. |
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| Subsea / Submersible | Offshore energy, marine systems, subsea cable termination | Submersible HV Electrical Enclosures |  |
| Submersible electrical enclosures are designed for underwater and subsea cable termination, offering long-term sealing, corrosion resistance and pressure tolerance. These solutions are ideal for offshore energy, marine infrastructure and subsea power distribution systems. |
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| Fibre Optic Integration | Data transmission, monitoring, control & communications | Fibre Optic Termination Enclosures |  |
| Fibre optic termination enclosures provide secure housing for optical fibre connections within HV and industrial networks. These enclosures protect sensitive fibre systems while supporting data, monitoring and communication integration alongside power infrastructure. |
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11kV Junction Boxes ABTECH HVJBDownload
