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Grey rectangular molded-case breaker with bolt-on lugs, one pole, 20 A rating

GE

GE TEY120 Circuit Breaker 20A 1 Pole 277/480V AC

SKU CH-A3KN-1N2QA

A 20 A single-pole molded-case breaker rated 277/480 V AC with a 14 kA interrupting capacity at 277 V, thermal-magnetic trip and bolt-on mounting for GE AE lighting panels

  • 20 A single-pole protection for 277/480 V AC lighting panels
  • 14 kA interrupting rating at 277 V AC handles fault currents
  • Thermal-magnetic trip with fixed 575 A instantaneous setting
  • Bolt-on mounting fits GE AE panelboards directly
  • Compact 5.25 in height by 1 in width saves panel space

GE TEY120 Circuit Breaker Specifications

The GE TEY120 is a molded case circuit breaker rated at 20 amps with a 277/480V AC voltage rating. It features a thermal magnetic trip mechanism with a fixed instantaneous trip setting. This single pole device carries a 14kA interrupting rating at 277V AC and a high amp trip setting of 575 amps.

Installation Requirements

The breaker uses a bolt on panelboard mounting style designed for GE AE lighting panels. It measures 5.25 inches in height, 1 inch in width, and 3.06 inches in depth. Terminal connection is via lug type connectors. Installation requires a compatible panelboard and proper torque on the lug connections to ensure reliable contact.

Suitable Applications

This breaker suits commercial and industrial electrical systems requiring 20 amp single pole protection at 277/480V AC. It is not suited for applications needing multi pole configurations or higher interrupting ratings beyond 14kA. Buyers needing different voltage ratings or frame sizes should look at alternative series.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $114.99
Pricier than about 72% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameGE

Questions about this item

How can I confirm the GE TEY120 breaker is operating correctly after installation?

Verify the breaker holds its 20 A rating under load, trips at the fixed instantaneous setting of 575 A, and shows no overheating at the lug terminals during normal operation.

What comes with the GE TEY120 and what must be purchased separately?

The breaker includes the bolt-on panelboard mounting hardware and lug terminals; compatible GE AE lighting panelboard and branch-circuit conductors must be sourced separately.

Which GE TEY120 version should I select for a 277 V single-phase lighting circuit?

Choose the 1-pole, 20 A TEY model rated 277/480 V AC with a 14 kA interrupting rating at 277 V and thermal-magnetic trip for standard lighting-panel protection.

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