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Square D QO160 single-pole circuit breaker, grey plastic body with black paddle actuator

SQUARE D

SQUARE D QO160 Circuit Breaker 60A 1 Pole 120/240V AC

SKU CH-J0NZ-AHSWR

A 60 A, single-pole miniature circuit breaker rated 120/240 V AC and 48 V DC with a 10 kA interrupting rating for QO load centres

  • Protects circuits up to 60 A single-pole
  • Withstands 10 kA interrupting at 120/240 V AC
  • Plug-in mounting fits QO load centres and NQ panelboards
  • Operates down to 77 °F ambient temperature
  • Compact 3.1 in × .8 in × 2.9 in frame

What this breaker is and who uses it

The Square D QO160 is a 60 A single-pole miniature circuit breaker rated for 120/240 V AC and 48 V DC. It belongs to the QO series and carries a 10 kA interrupting rating at 120/240 V AC. The paddle actuator and plug-in mounting suit QO load centres and NQ panelboards. It is not for installations that require a two-pole breaker or a higher ampere rating.

How it fits into a panel

The unit mounts directly into compatible QO or NQ panelboards using the plug-in style, freeing a single pole position for branch-circuit protection. A lug terminal accepts the conductor, and the 100 A frame size matches the bus rating of standard QO load centres. Builders needing a double-pole device or a different frame size must select another model.

Thermals, noise and power draw

The breaker operates within a minimum ambient temperature of 77 °F and dissipates heat through its moulded case without active cooling. No fan or moving parts are present, so acoustic output is negligible during normal operation. Power consumption is limited to the internal trip mechanism and contact resistance.

How it compares

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

Price $16.99
Cheaper than about 83% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameSQUARE D

Questions about this item

At what current does the 60 A rating trip during continuous load?

The breaker is rated 60 A; sustained currents above this level will cause it to open per its standard trip curve.

How much heat does the QO160 produce when carrying full load all day?

At 60 A the device dissipates heat within its 3.1 in by .8 in by 2.9 in frame; normal panel ventilation handles the temperature rise.

Which load center series must I already have for this breaker to plug in?

It mounts only in Square D QO load centers or NQ panelboards that accept the QO plug-in frame.

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