Square D QDM32100TN Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Square D
QDM32100TN
Molded Case Circuit Breaker
Brand
Square D
SKU
QDM32100TN
Quantity
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Square D QDM32100TN - 100A 3 Pole Molded Case Circuit Breaker
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100A 3 Pole Molded Case Circuit Breaker
100A 3 Pole Molded Case Circuit Breaker
100A 3 Pole Molded Case Circuit Breaker
Description
Designed to secure three-phase electrical systems, the Square D QDM32100TN offers 100A of reliable thermal-magnetic protection. This molded case circuit breaker is engineered for heavy-duty commercial and industrial environments requiring consistent performance. The unit-mount design installs into Square D switchboards, panelboards, and EZ Meter-Pak metering equipment. It provides a seamless upgrade path by replacing legacy Q23100 breakers.Specifications
| Brand | Square D |
|---|---|
| Part Number | QDM32100TN |
| Series | QDM |
| Amperage | 100A |
| 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, 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
6 answersWhat legacy Square D circuit breaker does the QDM32100TN replace?
The QDM32100TN provides a direct upgrade path for discontinued Q2 series devices, replacing legacy Q23100 breakers in existing panelboards and metering equipment.
What does the TN suffix indicate on this Q-frame breaker?
The TN suffix specifies the terminal arrangement. It indicates that the breaker has factory-installed mounting studs on the OFF (load) end without nuts or washers, designed for bus-connected applications.
What does the M in the QDM32100TN catalog number mean for installation?
The M indicates the lug configuration. It means the breaker is equipped with mechanical box lugs on the ON (line) end only, while the OFF end uses stud connections.
Which Square D enclosures and equipment are compatible with this breaker?
This unit-mount breaker is designed for installation in Square D EZ Meter-Pak meter centers, metering equipment, switchboards, and compatible NQ or NQOD panelboards.
Which terminals accept the 4 AWG to 300 kcmil wire range?
Because this breaker features a stud connection on the load side, only the mechanical box lugs on the ON (line) side accept the specified 4 AWG to 300 kcmil aluminum or copper conductors.
Does this breaker provide adjustable trip settings?
No. It features a fixed thermal-magnetic trip unit with non-interchangeable Long-Time and Instantaneous (LI) protection functions.
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