Square D MHBC220 Miniature Circuit Breaker
- 20A
- 2 Pole
- Plug-On
Quantity
Square D MHBC220 - 20A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
Description
Built for residential electrical systems, this 20-amp Square D breaker offers dependable thermal-magnetic protection for standard 240V applications. The one-inch plug-on design ensures broad compatibility, allowing it to mount seamlessly into Siemens, Murray, Eaton BR, and Square D mobile home panels. It is an excellent substitute for Q220, MP220, and BR220 breakers. With a quick-make/quick-break mechanism and HACR rating, it safely handles demanding HVAC and refrigeration loads.Specifications
| Brand | Square D |
|---|---|
| Part Number | MHBC220-R |
| Series | MHBC |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Mobile Home Panels, Siemens Load Centers, Murray Load Centers, Eaton BR Load Centers |
| Wire Gauge | 14-8 AWG (Al/Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40°C |
| Construction Features | Quick-Make/Quick-Break |
Product FAQs
7 answersWhat load centers are compatible with the MHBC220 circuit breaker?
The MHBC220 is designed for use in Square D Mobile Home Panels. It is also compatible with Siemens, Murray, and Eaton BR load centers that accept 1-inch interchangeable breakers.
Can I install the MHBC220 in a standard Square D QO or Homeline panel?
No. The MHBC series is specifically designed for Square D Mobile Home Panels and select interchangeable load centers. It is not compatible with standard Square D QO or Homeline load centers.
What type of wiring is supported by the MHBC220 terminals?
The breaker features standard lug terminals that accept 14 to 8 AWG wire. It is rated for use with both aluminum and copper conductors, making it versatile for older mobile home wiring upgrades.
What applications is the 2-pole 20A MHBC220 typically used for?
A 2-pole 20A breaker like the MHBC220 is commonly used for 240V residential circuits, such as baseboard heaters, small air conditioners, or well pumps in mobile home applications.
Is the 10kAIC rating sufficient for mobile home applications?
Yes, the 10kAIC interrupting rating at 120/240V AC is standard for most residential and mobile home load centers, provided the available fault current at the panel does not exceed 10,000 amps.
What does the LI trip function code mean on the MHBC220?
The LI designation indicates that the breaker provides Long-Time (thermal) protection for overloads and Instantaneous (magnetic) protection for short circuits. This is a fixed thermal-magnetic trip mechanism.
Is the MHBC220 a direct replacement for older mobile home panel breakers?
Yes, the MHBC series is commonly used as a replacement breaker for older Square D mobile home panels that require 1-inch interchangeable breakers.
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