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Siemens QRH22B100L Molded Case Circuit Breaker

  • 100A
  • 2 Pole
  • Unit Mount
Siemens QRH22B100L
Molded Case Circuit Breaker
Brand Siemens
SKU QRH22B100L
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  • 100A
  • 2 Pole
  • Unit Mount

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Siemens QRH22B100L - 100A 2 Pole Molded Case Circuit Breaker

Siemens QRH22B100L - 100A 2 Pole Molded Case Circuit Breaker

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$637.50 No Stock

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Description

Featuring a trip-free mechanism, the Siemens QRH22B100L is a 2-pole, 100A MCCB. It utilizes a thermal-magnetic trip unit for long-time and instantaneous (LI) protection in commercial systems. This unit mount breaker includes line and load side lugs for feed-thru applications. It installs into Siemens enclosures and replaces legacy QJ22B100L and QJ22B100 breakers. Rated for 25kAIC at 240VAC, it offers high interrupting capacity, supports reverse feed configurations, and is HACR rated.

Specifications

Key specifications
Brand Siemens
Part Number QRH22B100L
Series QRH
Amperage 100A
Poles 2
Mounting Style Unit Mount
Voltage 240VAC
Phase 1
AIC Rating 25kA @ 240VAC
Fit and installation
Frame Type QR
Terminal Type Lugs
For Use With Siemens Enclosures, Individual Mount
Wire Gauge 3 AWG - 300 kcmil (Al/Cu)
Max Wire 300 kcmil
Min Wire 3 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 Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment
Accessories Line & Load Side Lugs
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism, High Interrupting Capacity

Product FAQs

6 answers
What does the "L" at the end of the QRH22B100L catalog number indicate?

The "L" suffix indicates that the circuit breaker is supplied with both line and load side lugs installed from the factory. Standard QR breakers without this suffix only include load side lugs.

What are the lug torque specifications for the QRH22B100L circuit breaker?

For the standard TA1QR300 lugs, torque 3 AWG to 1/0 AWG conductors to 100 in-lb. For larger 2/0 AWG to 300 kcmil conductors, torque to 225 in-lb.

Which Siemens panelboards accept QR frame circuit breakers?

QR frame breakers are compatible with Siemens P1, P2, P3, P4, and P5 panelboards. Note that installing this breaker as a main or subfeed in a P1 panel requires a dedicated mounting kit, such as the MBKQR1.

Can the QRH22B100L replace older Siemens QJ frame breakers?

Yes, the Siemens QR frame shares the exact same form factor and mounting footprint as the legacy QJ frame. It serves as a direct drop-in replacement for obsolete models like the QJ22B100L.

What is the standard ambient temperature calibration for this breaker?

Siemens QR frame circuit breakers are calibrated for use in 40 degrees Celsius (104 degrees Fahrenheit) ambient temperatures. Continuous operation in environments exceeding this temperature requires derating.

Is the QRH22B100L suitable for reverse feed applications?

Yes, this breaker features a cable-in, cable-out design and is approved for reverse feed configurations.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
1 review
  • CM
    Chani M.
    Verified Buyer
    Reviewing
    Siemens QRH23B150 - 150A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/11/25
    Worked just as we needed it to.

    Great buy.