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Siemens Q335H Miniature Circuit Breaker
- 35A
- 3 Pole
- Plug-On
Siemens
Q335H
Miniature Circuit Breaker
Brand
Siemens
SKU
Q335H
Quantity
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Siemens Q335H - 35A 3 Pole Miniature Circuit Breaker
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Description
Engineered for demanding electrical systems, the Siemens Q335H provides 35 amps of three-pole protection within the QPH series. It utilizes thermal-magnetic trip technology to protect against overloads and short circuits. The unit installs into Siemens EQ, PL, ES, and Ultimate load centers using a standard plug-on connection. It serves as an upgraded replacement for older MP335 breakers. Rated at 22 kAIC at 240VAC, this high-interrupting capacity breaker provides superior fault clearance.Specifications
| Brand | Siemens |
|---|---|
| Series | QPH |
| Amperage | 35A |
| 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, EQ, PL, ES, Ultimate Load Centers |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 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 | HACR Rated, Common Trip, High Interrupting Capacity |
Product FAQs
8 answersWhat panels are compatible with the Q335H circuit breaker?
The Q335H is UL listed for use in Siemens EQ, PL, ES, and Ultimate load centers. Because it is a 3-pole breaker, it requires three available spaces on a 3-phase bus bar.
Can the Siemens Q335H be installed in Eaton or Square D load centers?
No. Siemens QPH series breakers are not UL listed for use in competitor panels like Eaton, Square D, or GE. Using mismatched breakers can lead to poor bus bar contact and potential thermal damage.
What is the difference between the Siemens Q335 and the Q335H?
The H in the Q335H part number indicates a high interrupting capacity. The Q335H is rated for 22kAIC at 240VAC, whereas the standard Q335 is rated for 10kAIC.
Can I use the 22kAIC Q335H in a panel that only requires a 10kAIC rating?
Yes. A breaker with a 22kAIC rating safely exceeds the requirements of a 10kAIC system. However, you cannot use a standard 10kAIC breaker in a system that requires a 22kAIC rating.
Is the Q335H a direct replacement for older ITE breakers?
Yes. Siemens acquired ITE, and the Q335H serves as a direct, UL listed replacement for older ITE Q335H breakers. It can also replace equivalent Murray MP335H models.
Is the Siemens Q335H HACR rated for HVAC equipment?
Yes, this breaker is HACR rated. This makes it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific protection standard.
What is the recommended terminal torque for the Q335H?
For the lug terminals on this breaker, the recommended torque is 25 lb-in for 14 to 10 AWG wire, 40 lb-in for 8 AWG wire, and 45 lb-in for 6 AWG wire.
Does the Q335H provide ground fault or arc fault protection?
No. This is a standard thermal-magnetic breaker that provides long-time and instantaneous trip functions for overload and short-circuit protection. It does not contain GFCI or AFCI technology.
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