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Siemens Q28000S01 Miniature Circuit Breaker
- 80A
- 2 Pole
- Plug-On
Siemens
Q28000S01
Miniature Circuit Breaker
Brand
Siemens
SKU
Q28000S01
Quantity
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Siemens Q28000S01 - 80A 2 Pole Miniature Circuit Breaker
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Description
Built for specialized control, the Siemens Q28000S01 is a 2-pole, 80-amp miniature circuit breaker. It includes a factory-installed 120VAC shunt trip mechanism, allowing facility managers and electricians to remotely disconnect power during emergencies or automated shutdowns. This Type QP breaker installs into standard Siemens load centers and panelboards. Because of the attached shunt trip coil, it requires three panel spaces despite being a 2-pole device. Rated for 10 kAIC at 120/240V.Specifications
| Brand | Siemens |
|---|---|
| Series | QP |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Siemens Panelboards |
| 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 |
|---|---|
| Accessories | Factory Installed Shunt Trip (120VAC) |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Product FAQs
8 answersWhat does the 00S01 suffix mean on the Q28000S01 catalog number?
The 00S01 suffix indicates that this 80A breaker comes with a factory-installed 120VAC shunt trip mechanism. This allows the breaker to be tripped remotely via an external control signal.
How many panel spaces does the Q28000S01 require?
Although it is a 2-pole breaker, the Q28000S01 requires three standard 1-inch panel spaces. The factory-installed shunt trip module occupies the third space on the busbar.
How does the shunt trip feature on the Q28000S01 operate?
The integrated shunt trip coil requires a 120VAC external control signal. When voltage is applied to the shunt trip leads, it mechanically trips the breaker to the off position, making it ideal for emergency power-off (EPO) systems or automated safety disconnects.
What wire sizes and materials are compatible with the Q28000S01 lugs?
The breaker's lugs accept 4 AWG to 1/0 AWG copper conductors or 2 AWG to 1/0 AWG aluminum conductors. Always torque the terminal screws to the manufacturer's specifications printed on the breaker label to ensure a secure connection.
Can the Q28000S01 be used in older ITE load centers?
Yes, Siemens Type QP breakers are backward compatible with legacy ITE load centers that accept plug-on QP breakers. You must ensure the panel has three available 1-inch spaces to accommodate the breaker and the attached shunt trip module.
How is the Q28000S01 installed in a Siemens panel?
This Type QP breaker utilizes a plug-on connection that snaps directly onto the panel's busbar. Because of the attached shunt trip module, you must verify that the panel has three continuous 1-inch spaces available on the busbar before installation.
What type of trip technology does the Q28000S01 use?
It utilizes fixed thermal-magnetic trip technology with long-time and instantaneous (LI) trip functions to protect against overloads and short circuits, in addition to the remote shunt trip capability.
Can the Q28000S01 be used in systems requiring a 22kAIC or 65kAIC rating?
No, the Q28000S01 has a maximum interrupting rating of 10kAIC at 120/240VAC. Systems requiring higher interrupting capacities will need a fully rated QPH (22kAIC) or HQP (65kAIC) series breaker.
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