Product Sheet Wellhead Junction Box
Vent gas from downhole cables so it does not reach the variable speed drive.
Wellhead junction box
Vent gas that migrates from downhole cables
Overview
Keep gas from reaching variable speed drives
Small amounts of gas can migrate up downhole cables used to power artificial lift equipment in oilfield applications. The wellhead junction box is used for electrical power surface connections, enabling the gas to be vented and preventing it from reaching variable speed drives (VSDs) or switchboards.
Custom-designed for on-land oilfield applications, the high-voltage wellhead junction box features six louvered vents, two drainholes, and three 5-kV insulator standoffs. Three-phase cables are connected at the three sets of 6 AWG to 350-kcmil [185-mm2] double-barrel lugs.
Features
How it works
Custom-designed for oilfield applications, the high-voltage wellhead junction box features six louvered vents, two drainholes, and three 5-kV insulator standoffs. Three-phase cables are connected at the three sets of 6 AWG to 350-kcmil [185-mm2] double-barrel lugs. This replaces junction boxes that do not have relevant ANSI, UL, and CSA safety certifications
Additional features
- One 14 AWG through 2/0 AWG doublebarrel lug inside the enclosure for ground installation
- One 4 AWG through 3/0 AWG singlebarrel lug outside the enclosure for ground installation
- 35-mm rail-mounted provision for anticondensation heater
Tech Specs
| Wellhead Junction Box Standard Specifications | |
| Enclosure type | High voltage, 5-kV AC |
| Ingress protection | CSA Type 3R* |
| Material | 14-gauge [2-mm] cold-rolled steel |
| Ambient temperature rating | –40 to 70 degC [–40 to 158 degF] |
| Maximum terminations | Three conductors for three-phase cables |
| Earthing | Studs on enclosure and gland plates |
| Dimensions, width × height × depth | 520 × 520 × 230 mm [20.5 × 20.5 × 9 in] |
| Area classification | Class 1, Division 2 outdoor nonhazardous |
*Indoor or outdoor use. Provides a degree of protection against rain and snow; undamaged by the external formation of ice on the enclosure.