Square D MHC215 Miniature Circuit Breaker
- 15A
- 2 Pole
- Bolt-On
Quantity
Square D MHC215 - 15A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
Description
Manufactured for older commercial distribution systems, this legacy 15-amp component provides reliable thermal-magnetic protection for 120/240V circuits. It installs seamlessly into classic Square D NQOD and NQ panelboards using a secure bolt-on connection. While this specific M-frame series has been officially replaced by the modern QOB215, it remains essential for maintaining existing infrastructure. Features include a quick-make/quick-break mechanism and standard 10kAIC interrupting capacity.Specifications
| Brand | Square D |
|---|---|
| Part Number | MHC215-R |
| Series | MHC |
| Amperage | 15A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D NQOD Panelboards, Square D NQ Panelboards |
| 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 Thermal, Fixed Magnetic |
| Accessories | Load Side Lugs Included |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Quick-Make/Quick-Break, Non-Interchangeable Trip |
Product FAQs
5 answersWhich panelboards are compatible with the MHC215 circuit breaker?
This breaker is designed specifically for Square D NQ and legacy NQOD panelboards. It utilizes a bolt-on connection to secure directly to the panel bus bar, ensuring a stable mechanical and electrical connection.
What protection does the thermal-magnetic LI trip unit provide?
The LI designation stands for Long-Time and Instantaneous trip functions. The thermal (Long-Time) component prevents damage from sustained overloads, while the magnetic (Instantaneous) component clears short circuits immediately.
What are the wiring requirements for the lugs on this breaker?
The terminal lugs accept conductor sizes ranging from 14 AWG to 8 AWG. They are dual-rated for both aluminum and copper wire, providing flexibility for various field installations.
Is the MHC series considered a legacy breaker?
Yes, the MHC215 is part of the Square D M Frame group, which is classified as a legacy molded case circuit breaker. It is typically sourced to maintain or expand existing NQ and NQOD panelboard installations.
Does this breaker provide GFCI or AFCI protection?
No, the MHC215 is a standard thermal-magnetic circuit breaker. It does not include ground fault circuit interrupter (GFCI) or arc fault circuit interrupter (AFCI) capabilities.
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