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Siemens Q2100HH Miniature Circuit Breaker
- 100A
- 2 Pole
- Plug-On
Siemens
Q2100HH
Miniature Circuit Breaker
Brand
Siemens
SKU
Q2100HH
Quantity
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Siemens Q2100HH - 100A 2 Pole Miniature Circuit Breaker
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Description
Rated 65 kAIC at 240V, this two-pole miniature circuit breaker delivers extra-high interrupting capacity for demanding commercial and industrial applications. It is designed to provide reliable thermal-magnetic protection for 100A circuits. The unit mounts into Siemens P1 panelboards and standard load centers using a simple plug-on connection. It features Insta-Wire technology for faster installation, common trip functionality, and carries an HACR rating for HVAC equipment.Specifications
| Brand | Siemens |
|---|---|
| Part Number | Q2100HH |
| Series | Q |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1 Panelboards, Siemens Load Centers |
| Wire Gauge | 4-1/0 AWG (Cu), 2-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Extra High Interrupting Capacity, Common Trip, HACR Rated |
Product FAQs
6 answersWhich panelboards and load centers are compatible with the Q2100HH breaker?
This breaker is designed for use in Siemens P1 panelboards and standard Siemens load centers, including PL and ES series enclosures, that accept Type HQP plug-in circuit breakers.
What does the HH suffix in the Q2100HH catalog number indicate?
The HH designates this as a Type HQP breaker with an ultra-high interrupting rating of 65kAIC at 240V. This provides a higher fault current withstand capability compared to standard 10kAIC or 22kAIC versions.
What wire sizes and materials are accepted by the lugs on this 100A breaker?
The terminals accept 4 AWG to 1/0 AWG copper wire, or 2 AWG to 1/0 AWG aluminum wire. Ensure the connections are torqued to the manufacturer specifications printed directly on the breaker label.
Does the Q2100HH use a plug-in or bolt-on mounting connection?
The Q2100HH is a Type HQP breaker, which utilizes a plug-in connection for Siemens load centers. If you need a bolt-on breaker for a commercial panelboard, you will need the B2100HH instead.
Can the Q2100HH be used to replace a standard Q2100 or Q2100H breaker?
Yes. The Q2100HH shares the exact same physical dimensions and plug-in mounting style as the standard Q2100 and Q2100H. It serves as a direct drop-in replacement while upgrading the short-circuit interrupting rating to 65kAIC.
Is the Q2100HH suitable for protecting HVAC equipment?
Yes, this breaker is HACR rated. It is fully approved to provide branch circuit protection for heating, air conditioning, and refrigeration equipment requiring a 100A, 2-pole disconnect.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 47 reviews.
Reviews Summary
Generated by AI from 91 most recent customer reviews
Last updated 8/1/25
Customers say these circuit breakers arrive quickly and match their specifications perfectly. Many reviews mention success finding hard-to-locate specialty breakers through this supplier. Common feedback includes praise for the accurate product descriptions, reliable shipping, and competitive pricing. While some note occasional stock limitations, users consistently report the breakers fit and function as intended.
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47 reviews
- CGCrocefissa G.Verified BuyerReviewingSiemens Q115 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Quick delivery and great price.
The circuit breakers are at a great cost.
- JBJason B.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Great experience
The product was exactly what I needed and it arrived on time.
- DQDon Q.Verified BuyerReviewingSiemens Q3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/14/26Siemens breaker
Great customer experience, great prices and fast shipping... Definitely will be buying her again.
- CSChristopher S.Verified BuyerRated 5 out of 5 stars8/12/26Siemens 60
Perfect new condition
- GSGeorge S.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/4/26Great service
Every time I call or go online you have the parts I'm looking for.