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Square D QOB1202100 Circuit Breaker

  • 20A
  • 1 Pole
  • Bolt-On
Square D QOB1202100
Circuit Breaker
Brand Square D
SKU QOB1202100
Select Item Condition
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  • 20A
  • 1 Pole
  • Bolt-On

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Square D QOB1202100 1 Pole Circuit Breaker

New

$290.00 In Stock

Quantity

Description

Square D QOB1202100 1 Pole Circuit Breaker

The Square D QOB1202100 is a 1 Pole thermal magnetic molded case circuit breaker with a current rating of 20 Amps and a voltage rating of 120/240VAC. It has an interrupting rating of 10kAIC at 120/240VAC. The QOB1202100 has a bolt-on connection type and includes long time and instantaneous trip functions.

Specifications

Key specifications
Brand Square D
Series QOB
Amperage 20A
Poles 1
Mounting Style Bolt-On
Voltage 120/240VAC, 48VDC
Phase 1
AIC Rating 10kA @ 120/240VAC, 5kA @ 48VDC
Fit and installation
Frame Type QOB
Terminal Type Pressure Plate
For Use With Square D NQ and NQOD Panelboards
Wire Gauge 14-8 AWG
Max Wire 8 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Standards RoHS, REACh, HACR
Approval UL, CSA
Temp Rating 40 °C

Product FAQs

6 answers
What panelboards accept the Square D QOB1202100 circuit breaker?

The QOB1202100 is a bolt-on breaker designed for use in Square D NQ and NQOD panelboards. It cannot be installed in standard QO load centers, which require plug-on breakers.

What does the 2100 suffix mean on the QOB1202100?

The 2100 suffix indicates that this circuit breaker includes a factory-installed alarm switch. This switch provides remote indication when the breaker trips due to a fault.

How does the QOB1202100 mount into the panel?

This breaker features a bolt-on connection. It secures directly to the panel bus bar with a screw, providing a robust connection commonly required in commercial and industrial applications.

What wire sizes are accepted by the terminals on the QOB1202100?

The terminals on this 20-amp breaker accept wire gauges from 14 AWG to 8 AWG for both copper and aluminum conductors.

Does the QOB1202100 provide ground fault or arc fault protection?

No, this is a standard thermal-magnetic circuit breaker. It provides overload and short-circuit protection but does not include GFCI or AFCI capabilities.

Can I use a standard QO120 in place of the QOB1202100?

No. The QO120 is a plug-on breaker, while the QOB1202100 is a bolt-on breaker with a factory-installed alarm switch. They mount differently and have different features, so they are not interchangeable.

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