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Grey powder-coated steel panel with three outlets and surface mounting lugs

SIEMENS

SIEMENS TL37US Temporary GFCI Outlet Panel 50A 120/240V 1 Phase NEMA

SKU CH-ENPR-6ZJ69

Temporary GFCI panel delivers 50 A at 120/240 V single phase with two NEMA 5-20R GFCI outlets and one TT-30R outlet in a NEMA 3R powder-coated steel enclosure

  • TypeWiring Devices
  • Manual-reset GFCI protection cuts power fast on fault
  • 50 A 120/240 V single-phase supply runs high-draw tools
  • Three outlets include two 20 A GFCI and one 30 A twist-lock
  • Powder-coated steel NEMA 3R enclosure resists rain and dust
  • Surface-mount design installs quickly on job-site walls

Temporary GFCI Panel

The SIEMENS TL37US is a temporary GFCI outlet panel rated for 50 A at 120/240 V AC single phase. It provides three protected receptacles for job-site or event power distribution. The unit is built for professional electricians and contractors who need code-compliant ground-fault protection on temporary circuits. Its powder-coated steel enclosure carries a 3R rating for outdoor use.

Surface-Mount Integration

The panel mounts directly to a flat surface and accepts supply conductors through an inlet lug; no factory lead is included so the installer provides the feed. Two NEMA 5-20R GFCI outlets and one TT-30R outlet free the builder from wiring individual GFCI devices. A manual reset button restores power after a fault without needing a tool. The 3R enclosure sheds rain and sleet in exposed locations.

Thermal and Power Behaviour

Under normal load the panel operates at the rated 50 A without active cooling; the steel housing dissipates heat passively. No audible alert sounds during standard operation, so the unit adds no noise to the site. Power draw is limited to the connected loads up to the 50 A maximum. The manual reset ensures the circuit stays open until deliberately re-energised.

Highlights

  • Manual-reset GFCI protection cuts power fast on fault
  • 50 A 120/240 V single-phase supply runs high-draw tools
  • Three outlets include two 20 A GFCI and one 30 A twist-lock
  • Powder-coated steel NEMA 3R enclosure resists rain and dust
  • Surface-mount design installs quickly on job-site walls

Specifications

BrandSIEMENS
TypeWiring Devices

Questions about this item

At what current does the GFCI protection trip on the two 20 A receptacles?

The two NEMA 5-20R outlets each provide 20 A GFCI protection, so the built-in device will trip at 20 A on those circuits.

How loud is the panel and does it run hot during continuous 50 A operation?

The unit has no audible alert and no fan; heat rise depends on the 50 A load and the powder-coated steel enclosure rating 3R.

What inlet connection must already be on site for this panel to work?

The panel requires a 50 A, 120/240 V single-phase supply wired to its inlet lug; no lead or plug is included.

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