Square D Q2M2125VH Molded Case Circuit Breaker
- 125A
- 2 Pole
- Bolt-On
Quantity
Square D Q2M2125VH - 125A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of the legacy Q-Frame lineup, this 125-amp bolt-on molded case circuit breaker provides reliable overcurrent protection for commercial and industrial applications. It installs into Square D Meter-Pak, EZM metering centers, and NQOD panelboards. Featuring a high interrupting capacity of 22kA at 120/240VAC, it utilizes fixed thermal-magnetic trip technology. Note that this specific unit has been superseded by the QDM22125TN for newer installations.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q2M2125VH |
| Series | Q2M |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | Q2M |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Meter-Pak, EZM Metering, NQOD Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Non-Interchangeable Trip, Main Breaker |
Product FAQs
9 answersWhat equipment is the Q2M2125VH designed to be installed in?
This breaker is compatible with Square D Meter-Pak metering centers, EZM (EZ Meter-Pak) metering equipment, and legacy NQOD panelboards.
What does the VH suffix indicate on the Q2M2125VH catalog number?
The VH suffix designates a Very High interrupting rating. For this specific Q-frame breaker, it indicates an interrupting capacity of 22kAIC at 240V, compared to standard 10kAIC versions.
Are the lugs on the Q2M2125VH rated for both aluminum and copper wire?
Yes, the factory-installed lugs are AL/CU rated. They safely accept both aluminum and copper conductors ranging from 4 AWG to 300 kcmil.
Can the Q2M2125VH be reverse fed?
Yes. Standard thermal-magnetic Q-frame breakers like the Q2M2125VH do not have Line and Load markings, making them suitable for reverse feeding in back-fed main breaker applications.
Can I use the Q2M2125VH as a main breaker?
Yes, the Q2M frame is frequently utilized as a main circuit breaker in Square D EZM metering centers and Meter-Pak enclosures.
What type of trip mechanism does the Q2M2125VH utilize?
It features a fixed thermal-magnetic trip unit. The thermal element provides long-time overload protection, while the magnetic element provides instantaneous short-circuit protection.
How does the Q2M2125VH connect to the busbar?
It uses a bolt-on connection, which provides a secure, vibration-resistant mechanical and electrical connection to the busbar in NQOD panelboards and EZM metering centers.
Is the Q2M2125VH interchangeable with standard QO breakers?
No, the Q2M2125VH is part of the legacy Q-Frame molded case circuit breaker family. It is physically larger and has different mounting requirements than standard QO miniature circuit breakers.
Will the Q2M2125VH fit in an I-Line panelboard?
No, Q2M breakers are bolt-on units designed for NQOD panels and Meter-Pak or EZM metering centers. They do not have the plug-on jaw connections required for I-Line panelboards.
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