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Square D QO115 miniature circuit breaker, single pole, light grey plastic housing, toggle switch, plug-in base

SQUARE D

SQUARE D QO115 Circuit Breaker 15A 1 Pole 120/240V AC

SKU CH-BYKX-VVQAH

Single-pole thermal-magnetic breaker rated 15 A at 120/240 V AC with VisiTrip indication and 10 kA interrupting capacity

  • 15 A single-pole protection for 120/240 V AC circuits
  • 10 kA breaking capacity handles high fault currents safely
  • VisiTrip indicator shows instantly when the breaker has tripped
  • Plug-in mounting allows quick installation in QO load centres
  • UL listed and CSA certified for code-compliant use

15A single-pole circuit protection

The Square D QO115 is a miniature thermal-magnetic circuit breaker rated at 15A for 120/240V AC systems. It provides overcurrent protection and switching for residential and light-commercial panels. The one-pole design fits standard QO load centres and is UL Listed under file E84967 with CSA certification.

Plug-in mounting with visual trip indicator

The breaker uses a plug-in mounting method for quick installation in compatible panels. A trip-free toggle mechanism delivers quick-make, quick-break action with positive handle indication. VisiTrip technology shows a clear visual flag when the device has tripped, simplifying fault identification. Factory-installed accessory options such as shunt trips and auxiliary switches are also supported.

10kA interrupting capacity for reliable interruption

The unit carries a 10kA breaking capacity, allowing it to safely interrupt high fault currents on AC and DC systems. Thermal-magnetic operation responds to both sustained overloads and short circuits without nuisance tripping. The over-centre toggle mechanism ensures consistent performance through repeated operations. No active cooling or external power is required for normal use.

How it compares

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

Price $11.99
Cheaper than about 91% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameSQUARE D

Questions about this item

What voltage does the QO115's 120/240V AC rating actually protect?

It protects single-pole circuits at 120V and two-pole circuits at 240V, interrupting up to 10kA.

What panel space and mounting style does the QO115 require?

It needs one QO plug-on slot and mounts by plugging directly onto the panel bus.

Which installation step causes the VisiTrip indicator to misread?

Seating the breaker fully until it clicks ensures the VisiTrip window shows the true trip state.

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