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Siemens QN2150R Molded Case Circuit Breaker

  • 150A
  • 2 Pole
  • Plug-On
Siemens QN2150R
Molded Case Circuit Breaker
Brand Siemens
SKU QN2150R
Select Item Condition
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  • 150A
  • 2 Pole
  • Plug-On

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Siemens QN2150R - 150A 2 Pole Molded Case Circuit Breaker

Siemens QN2150R - 150A 2 Pole Molded Case Circuit Breaker

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$214.60 In Stock

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Description

Engineered for residential and commercial applications, the 150A QN2150R provides reliable thermal-magnetic protection for 120/240V systems. It mounts into Siemens load centers and meter combinations, requiring four total panel spaces for installation. The unit serves as an exact replacement for the legacy MPD2150R. Featuring a factory-installed reverse handle, this two-pole plug-on breaker delivers a 10kAIC rating. It accepts 4 AWG to 300 kcmil wire via standard lug terminals.

Specifications

Key specifications
Brand Siemens
Part Number QN2150R
Series QN
Amperage 150A
Poles 2
Mounting Style Plug-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Frame Type Q
Terminal Type Lugs
For Use With Siemens Load Centers, Meter Combinations
Wire Gauge 4 AWG - 300 kcmil (Cu/Al)
Max Wire 300 kcmil
Min Wire 4 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Padlock Attachment, Shunt Trip
Accessories Reverse Handle (Factory Installed)
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features Common Trip, HACR Rated, Reverse Feed, Requires 4 Panel Spaces, Reverse Handle

Product FAQs

4 answers
How many panel spaces are needed to install the QN2150R?

Although it is a two-pole breaker, the QN frame design requires four total panel spaces for proper installation in compatible Siemens load centers and meter combinations.

What does the R suffix indicate on this Siemens breaker?

The R signifies a factory-installed reverse handle. This configuration is typically required when the unit is installed as a main breaker in specific panel orientations to ensure proper handle operation.

Is the QN2150R a suitable replacement for legacy MPD series breakers?

Yes, this Siemens breaker serves as an exact replacement for the legacy MPD2150R circuit breaker.

Can this breaker be used as a main breaker?

Yes, the QN2150R is frequently installed as a main breaker in residential electrical distribution systems and meter combinations that accept QNR type breakers.

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