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GE TEY350 three-pole molded case circuit breaker in grey plastic housing with lug terminals

GE

GE TEY350 Molded Case Circuit Breaker 50A 3 Pole 277/480V AC

SKU CH-NWVD-B1BM4

Three-pole thermal-magnetic breaker rated 50 A at 277/480 V AC with 14 kA interrupting capacity for GE AE lighting panels

  • 50 A three-pole protection for 277/480 V AC systems
  • 14 kA interrupting rating at 277/480 V AC
  • Thermal-magnetic trip with fixed instantaneous response
  • Bolt-on mounting fits GE AE lighting panels
  • 125 A frame in 5.25 × 3 × 3.06 in housing

GE TEY350 50 A three-pole breaker

The GE TEY350 is a moulded-case circuit breaker rated at 50 A with three poles for 277/480 V AC systems. It uses a thermal-magnetic trip unit with a fixed instantaneous setting and a high amp trip setting of 1. The breaker fits GE AE lighting panels and mounts by bolt-on connection to the panelboard. Frame size is 125 A TEY.

Thermal-magnetic trip with 14 kA interrupting

Thermal-magnetic operation provides overload and short-circuit protection without external power. The breaker carries a maximum AIR rating of 14 kA at 277/480 V AC. Fixed instantaneous trip ensures consistent response under fault conditions. Rated for 250 V DC as well.

Bolt-on mounting and lug terminals simplify install

Bolt-on panelboard mounting secures the breaker directly to the bus without extra hardware. Lug terminals accept cable connections for straightforward wiring. Unit dimensions are 5.25 in high, 3 in wide and 3.06 in deep. No additional accessories or software are bundled.

Highlights

  • 50 A three-pole protection for 277/480 V AC systems
  • 14 kA interrupting rating at 277/480 V AC
  • Thermal-magnetic trip with fixed instantaneous response
  • Bolt-on mounting fits GE AE lighting panels
  • 125 A frame in 5.25 × 3 × 3.06 in housing

Specifications

BrandGE

Questions about this item

How do I bolt the TEY350 into a GE AE lighting panelboard, and what step is often missed?

Align the breaker's bolt-on mounting feet with the panelboard bus stabs, torque the mounting bolts to the panel manufacturer's specification, then secure the line and load lugs; the step often missed is verifying full stab engagement before tightening the lugs.

What maintenance or replacement will the TEY350 need after years of service?

Periodically re-torque the lug connections and inspect for discoloration; the thermal-magnetic trip unit is not field-adjustable, so if nuisance tripping or failure to trip occurs the entire 50 A breaker must be replaced.

At what fault level does the TEY350 reach its interrupting limit?

The breaker's maximum AIR rating is 14 kA at 277/480 V AC; any available fault current above that value exceeds the device's interrupting capacity and requires a higher-rated breaker.

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