Junction Cabinets.
Underground sectionalizing and junction enclosures for medium-voltage distribution — pad-mounted and below-grade, single- and three-phase, with dead-front 200 A and 600 A bushings for looping, tapping, and sectionalizing in utility, commercial, and renewable systems.
- Voltage class
- 15–35kV
- Manufacturers
- 5
- Connector class
- 200A / 600A
Manufacturers.
How junction cabinets are configured.
A junction cabinet houses a junction bar — an insulated bus fitted with bushings — that lets separable connectors land, loop, tap, and sectionalize an underground circuit without splicing. It is configured by voltage class, way count, connector interface, and mounting.
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Looping / tapping / sectionalizing
Junction bars are used to loop, tap, and sectionalize underground circuits — extending a run, branching a tap, and isolating a segment for maintenance and rapid restoration, all without cutting and splicing the cable.
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Single- & three-phase
Sectionalizing enclosures are offered in single-phase and three-phase configurations for sectionalizing, tapping, or terminating underground cable on 15, 25, and 35 kV class systems.
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200 A loadbreak / 600 A deadbreak
Dead-front bushings are built for the 200 A loadbreak and 600 A deadbreak separable-connector classes. The connectors that land on them are covered under Elbow Connectors. Way count and bushing rating match the cable count and conductor size.
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Pad-mounted / below-grade
Cabinets are built in pad-mounted construction, set on a concrete pad above grade, and below-grade subsurface construction, installed in a vault or concrete box. Both provide accessible, dead-front connection points.
FAQ.
What is a junction cabinet?
A junction cabinet is an enclosure housing an insulated junction bar or bus fitted with bushings, used to loop, tap, and sectionalize medium-voltage underground distribution circuits.
Separable insulated connectors on the incoming and outgoing cables land on the bushings, so circuits can be reconfigured without splicing.
What is a sectionalizing enclosure?
A sectionalizing enclosure is a junction cabinet built for sectionalizing, tapping, or terminating underground cable. It is offered in single-phase and three-phase configurations for 15, 25, and 35 kV class systems, providing accessible connection points where an underground circuit is sectioned, branched, or terminated.
What is the difference between a live-front and a dead-front junction cabinet?
A dead-front cabinet uses fully shielded, insulated separable connectors so no energized metal is exposed at the interface — the standard for underground distribution. A live-front cabinet uses exposed bushings and connections behind a barrier.
Dead-front construction is built around the 200 A loadbreak and 600 A deadbreak separable-connector interfaces.
What do 200 A and 600 A mean for a junction cabinet?
They are the standard separable-connector classes the cabinet's bushings are built for. The 200 A class is loadbreak, operated with the circuit energized using a hot stick; the 600 A class is deadbreak, requiring the circuit to be de-energized before operation.
The connectors that land on these bushings are covered under elbow connectors.
What is the difference between a pad-mounted and a below-grade junction cabinet?
A pad-mounted cabinet sits above grade on a concrete pad. A below-grade, or subsurface, unit is installed in a vault or concrete box below grade. Both house a junction bar, but enclosure construction and access differ.
Which manufacturers does Hawk carry for junction cabinets?
Hawk carries junction cabinets and sectionalizing enclosures from Aluma-Form, Eaton, Cooper Power Series, Hubbell Power Systems, and G&W Electric.
Does Hawk publish junction cabinet pricing or lead times?
No. Junction cabinets are configured and priced per project.
Send the voltage class, number of ways, separable-connector interface, and mounting type through Contact, and pricing and availability are confirmed once those are defined.
Sourcing junction cabinets?
Send the voltage class, number of ways, separable-connector interface, and pad or vault mounting — Hawk MV Supply will fill in the rest.
Junction cabinets and sectionalizing enclosures for underground MV distribution.
Hawk MV Supply sources junction cabinets and sectionalizing enclosures for medium-voltage underground distribution — the enclosures that house an insulated junction bar used to loop, tap, and sectionalize a circuit without splicing. Separable insulated connectors land on the bar's bushings, so segments of an underground network can be isolated, switched, and reconfigured for routine maintenance and rapid restoration. Cabinets are built in pad-mounted construction, set on a concrete pad above grade, and below-grade subsurface construction, installed in a vault or concrete box. Dead-front designs are built around the 200 A loadbreak and 600 A deadbreak separable-connector interfaces; the connectors that land on them are covered under Elbow Connectors. Sectionalizing enclosures are offered in single-phase and three-phase configurations for 15, 25, and 35 kV class systems. A cabinet is specified by voltage class, number of ways, connector interface, mounting type, and size envelope; exact values are confirmed per project.
Junction cabinets are used in utility, commercial, and renewable underground distribution wherever circuits must be looped, tapped, or sectionalized. Hawk carries junction cabinets and sectionalizing enclosures from Aluma-Form, Eaton, Cooper Power Series, Hubbell Power Systems, and G&W Electric. Brand names and logos are the property of their respective owners; specifications shown are typical industry ranges, with product availability and exact values confirmed at quote.