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Siemens Q3100H Miniature Circuit Breaker
- 100A
- 3 Pole
- Plug-On
Siemens
Q3100H
Miniature Circuit Breaker
Brand
Siemens
SKU
Q3100H
Quantity
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Siemens Q3100H - 100A 3 Pole Miniature Circuit Breaker
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Description
Built for high-capacity protection, the Siemens Q3100H is a 100A, three-pole miniature circuit breaker with a 22kAIC interrupt rating at 240VAC. It utilizes thermal-magnetic trip technology to safeguard commercial and industrial circuits against overloads and short circuits. This QPH series plug-on breaker mounts into Siemens, Murray, EQ, PL, and ES load centers. It serves as a direct replacement for the legacy MP3100H. The unit features common trip functionality and is HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Series | QPH |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Murray Load Centers, EQ Load Centers, PL Load Centers, ES Load Centers, Ultimate 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, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Common Trip, HACR Rated |
Product FAQs
6 answersIs the Siemens Q3100H a suitable replacement for a Murray 100A 3-pole breaker?
Yes. Siemens has phased out the Murray brand and officially designates the QP and QPH series as the UL-listed replacement for Murray MP-T breakers. Always verify your specific panel's wiring diagram for compatibility.
What is the difference between the Siemens Q3100 and the Q3100H?
The Q3100H features a higher interrupting rating of 22kAIC, whereas the standard Q3100 is rated for 10kAIC. Both are 100A, 3-pole thermal-magnetic breakers that share the same physical footprint.
Will the Q3100H fit in an older ITE load center?
Yes, Siemens QP and QPH breakers are the direct descendants of the ITE EQ-P line. The Q3100H is backward compatible and UL-listed for use in older ITE load centers that accept EQ-P breakers.
What hold-down kit is required to back-feed the Q3100H as a main breaker?
To use this 3-pole breaker as a back-fed main, you must install a retainer clip to secure it to the bus bar. For 3-phase PL, ES, and Ultimate load centers, the Siemens ECMBR3 hold-down kit is required to meet NEC standards.
How many panel spaces does the Q3100H require?
As a 3-pole QP-frame breaker, the Q3100H requires three standard 1-inch spaces in a 3-phase load center.
Can the Q3100H be used on a 208Y/120V system?
Yes, with a maximum voltage rating of 240VAC, the Q3100H is fully compatible with 208Y/120V 3-phase, 4-wire systems, as well as standard 240V 3-phase systems.
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