Square D QDM22150TN Molded Case Circuit Breaker
- 150A
- 2 Pole
- Unit Mount
Square D
QDM22150TN
Molded Case Circuit Breaker
Brand
Square D
SKU
QDM22150TN
Quantity
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Square D QDM22150TN - 150A 2 Pole Molded Case Circuit Breaker
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150A 2 Pole Molded Case Circuit Breaker
150A 2 Pole Molded Case Circuit Breaker
Description
Built for industrial environments, the QDM22150TN delivers 150A of thermal-magnetic protection within the Q-Frame architecture. It utilizes fixed LI trip functions to safeguard critical infrastructure against overloads and short circuits. The unit-mount configuration allows for versatile integration into EZ Meter-Pak centers and switchboards. It effectively replaces the older Q22150 breaker. Operating with a 25 kAIC capacity at 240VAC, this two-pole breaker features a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | QDM22150TN |
| Series | QDM |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC |
| Frame Type | QDM |
|---|---|
| Terminal Type | Stud/Tapped Pad |
| For Use With | EZ Meter-Pak Meter Centers, Metering Equipment, Panelboards, Switchboards |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs Included, Mounting Hardware |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, 80% Rated |
Product FAQs
7 answersWhere is the QDM22150TN typically installed?
This unit-mount PowerPacT Q-frame breaker is commonly installed in Square D EZ Meter-Pak meter centers, panelboards, and switchboards. It is designed for individual unit mounting rather than I-Line group mounting.
Can the QDM22150TN replace older Square D circuit breakers?
Yes, Square D PowerPacT Q-frame circuit breakers serve as direct replacements for legacy Q2 series devices with matching pole and amperage configurations.
What does the TN suffix indicate on the QDM22150TN catalog number?
The TN suffix specifies the terminal arrangement. It indicates the breaker is equipped with a standard box lug on the ON (line) end and a stud on the OFF (load) end without nuts or washers.
What type of protection does the QDM22150TN trip unit provide?
It features a non-interchangeable thermal-magnetic trip unit with fixed long-time (L) and instantaneous (I) functions to protect against overloads and short circuits.
What is the UL interrupting rating for the QDM22150TN?
This QD-type Q-frame breaker carries a UL-listed interrupting rating of 25kA at 240VAC. The D in the catalog number designates this 25kA rating, distinguishing it from 10kA QB-type breakers.
What are the wire size requirements for the line-side lug on this breaker?
The factory-installed box lug accepts 4 AWG to 300 kcmil aluminum or copper conductors. Ensure proper torque specifications are followed during installation.
Is the QDM22150TN a bolt-on or plug-on breaker?
This is a unit-mount, bolt-on circuit breaker. It uses threaded fasteners for secure installation in compatible enclosures, meter centers, and panelboards.
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