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Grey rectangular bolt-on circuit breaker, two poles, 100A rating, lug terminals visible

SQUARE D

SQUARE D QOB2100H circuit breaker, bolt-on, 2 pole, 100A

SKU CH-44PS-72GTP

A bolt-on, two-pole breaker rated 100 A with 10 kA interrupting capacity for Square D NQOD panelboards

  • TypeCircuit Breakers
  • Bolt-on design enables quick installation in compatible panels
  • Two-pole 100 A rating protects 120/240 VAC circuits
  • High interrupting capacity rated at 10 kA for fault protection
  • UL Listed and CSA Certified for code compliance
  • Accepts 4 AWG to 2/0 AWG conductors with lug terminals

Bolt-on two-pole breaker for NQOD panels

The Square D QOB2100H is a bolt-on circuit breaker rated at 100 amps with two poles. It is designed for use with Square D NQOD panelboards and carries a high interrupting capacity rating. The unit is UL listed and CSA certified for compliance.

Interrupting capacity and voltage limits

The breaker provides a maximum AIR rating of 10 kA at 120/240 VAC and has no DC voltage rating. It accepts wire sizes from 4 AWG up to 2/0 AWG using lug terminals. These electrical limits define the fault-current and voltage environments it can safely protect.

Compact frame with lug terminals

The frame measures 3.50 inches long, 1.50 inches wide and 2.91 inches deep, fitting the standard 100A QO footprint. Bolt-on mounting secures the breaker directly to the panelboard bus. Lug terminals accommodate a range of conductor sizes for straightforward installation.

Highlights

  • Bolt-on design enables quick installation in compatible panels
  • Two-pole 100 A rating protects 120/240 VAC circuits
  • High interrupting capacity rated at 10 kA for fault protection
  • UL Listed and CSA Certified for code compliance
  • Accepts 4 AWG to 2/0 AWG conductors with lug terminals

Specifications

BrandSquare D
ModelQOB2100H
TypeCircuit Breakers

Questions about this item

Should I choose the 100 A two-pole version or a different amperage for my panel?

Select the 100 A two-pole breaker when your branch circuit requires 100 A at 120/240 VAC and the panel accepts Square D QOB bolt-on devices.

What does the 10 kA interrupting rating mean once the breaker is installed?

It means the breaker can safely interrupt fault currents up to 10 kA at 120/240 VAC, protecting downstream wiring and equipment during a short circuit.

Does the bolt-on QOB interface limit the wire sizes I can use?

The lug terminals accept copper conductors from 4 AWG up to 2/0 AWG, so size your wires within that range for a secure connection.

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