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Siemens MP230 Miniature Circuit Breaker
- 30A
- 2 Pole
- Plug-On
Siemens
MP230
Miniature Circuit Breaker
Brand
Siemens
SKU
MP230
Quantity
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Siemens MP230 - 30A 2 Pole Miniature Circuit Breaker
Re-Certified
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Siemens MP230 - 30A 2 Pole Miniature Circuit Breaker
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| Brand | Siemens |
|---|---|
| Part Number | MP230 |
| Series | MP |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | MP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Murray Load Centers, Siemens Load Centers |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Insta-Wire |
Sold out
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Siemens MP230 - 30A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | MP230-R |
| Series | MP |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | MP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Murray Load Centers, Siemens Load Centers |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Insta-Wire |
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Description
Built for residential and commercial loads, this 30A breaker provides robust thermal-magnetic protection. The two-pole design is ideal for dedicated appliance circuits. The unit installs into Murray and Siemens load centers via a simple plug-on connection. The Siemens QP230 serves as the exact modern substitute for this component. With a 10 kAIC interrupt capacity, it ensures reliable safety. The common trip mechanism and HACR certification make it suitable for HVAC applications.Specifications
| Brand | Siemens |
|---|---|
| Part Number | MP230-R |
| Series | MP |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | MP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Murray Load Centers, Siemens Load Centers |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Insta-Wire |
Product FAQs
5 answersIs the Siemens MP230 the same as the Murray MP230?
Yes. Siemens acquired the Murray brand and manufactured these Type MP-T breakers. An older Murray MP230 and a Siemens MP230 are the exact same breaker. Siemens has since transitioned this line to the QP series, making the Siemens QP230 the modern UL-listed replacement.
Can I install the MP230 in a Siemens load center?
Yes, the MP230 is a plug-on breaker compatible with both Murray and Siemens load centers that accept Type MP-T or Type QP breakers. Always check your specific panel's wiring diagram to confirm accepted breaker types.
What wire size should be used with this 30-amp breaker?
While the MP230 lugs accept 14 to 6 AWG copper or 12 to 6 AWG aluminum wire, standard 30-amp branch circuits typically require 10 AWG copper wire. Always size your conductors according to the National Electrical Code (NEC) for your specific application.
Is the MP230 suitable for HVAC applications?
Yes, the MP230 is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires a 30-amp, 2-pole circuit.
Does the MP230 provide ground fault or arc fault protection?
No. The MP230 is a standard thermal-magnetic breaker featuring long-time and instantaneous trip functions for overload and short-circuit protection. It does not contain GFCI or AFCI circuitry.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.
Total 5 star reviews: 4 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
4 reviews
- JVJulie V.Verified BuyerReviewingSiemens / Murray MP2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars3/5/26on breaker
so far so good on the refurbished breaker
- JFJon F.ReviewingSiemens / Murray MP250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars12/17/20Sales
Fantastic group to work with...
- DSDavid S.ReviewingSiemens / Murray MP2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars1/5/20Thank you so much for
Thank you so much for sending me a 100 amp breaker that was in the condition that you said it would be in.With out your breaker I would still be in the dark Thank you David
- RARichard A.ReviewingSiemens / Murray MP2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/13/19Awesome!
Your prices and number of available items to choose from is Awesome!