Square D QDM32150TN Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Square D
QDM32150TN
Molded Case Circuit Breaker
Brand
Square D
SKU
QDM32150TN
Quantity
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Square D QDM32150TN - 150A 3 Pole Molded Case Circuit Breaker
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Description
A high-capacity solution for power distribution, the QDM32150TN is a 150A molded case circuit breaker from the PowerPacT Q-Frame family. It offers fixed thermal and magnetic trip settings to safeguard against overloads and short circuits. The breaker utilizes a unit mount style with stud and tapped pad terminals, making it ideal for EZ Meter-Pak centers and standard panelboards. Rated at 25 kAIC, it is fully HACR rated and seamlessly replaces the older Q23150 model.Specifications
| Brand | Square D |
|---|---|
| Part Number | QDM32150TN |
| Series | QDM |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 3 |
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Mounting Nuts, Washers |
| Standards | CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
8 answersWhat equipment is the Square D QDM32150TN compatible with?
This 3-pole Q-Frame breaker is designed for use in Square D EZ Meter-Pak meter centers, metering equipment, panelboards, and switchboards.
How is the QDM32150TN circuit breaker mounted?
It features a unit-mount, bolt-on design utilizing stud or tapped pad connections. It is intended for individual unit mounting on a backpan or within compatible Square D distribution equipment.
What type of trip unit is installed in the QDM32150TN?
It is equipped with a non-interchangeable, fixed thermal-magnetic trip unit providing long-time (L) overload and instantaneous (I) short-circuit protection functions.
What are the magnetic trip settings for the QDM32150TN?
This thermal-magnetic breaker features fixed trip settings, with a magnetic hold current of 1200A and a magnetic trip current of 2400A.
What wire sizes and materials are accepted by the terminals on this breaker?
The terminals accept aluminum or copper conductors ranging from 4 AWG to 300 kcmil. Ensure proper torque is applied during installation as specified by the manufacturer.
Can this breaker replace older Square D Q-frame breakers?
Yes, the PowerPacT QDM32150TN serves as a direct replacement for legacy 150A, 3-pole Q-frame breakers in existing Square D systems, allowing for seamless facility upgrades without replacing the entire enclosure.
Is the QDM32150TN rated for 100 percent continuous current?
No, this breaker is standard-rated at 80 percent continuous current. Continuous loads should not exceed 120A (80 percent of its 150A rating) in accordance with standard electrical codes.
Does this breaker include a push-to-trip feature?
Yes, PowerPacT Q-frame circuit breakers include an integral push-to-trip button on the cover. This allows electricians to manually trip the breaker to verify the mechanical operation of the trip mechanism during maintenance.
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