Square D HDM36100U31XSA Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Quantity
Square D HDM36100U31XSA - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for advanced control applications, this 100A, 3-pole PowerPacT HDM breaker integrates seamlessly into Square D switchboards and motor control centers. The unit-mount design includes a factory-installed 120VAC shunt trip, enabling remote disconnection for emergency stops or automated safety systems. Rated for 18kAIC at 480V, it utilizes a Micrologic 3.2 electronic trip unit.Specifications
| Brand | Square D |
|---|---|
| Part Number | HDM36100U31XSA |
| Series | HDM |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Amperage Range | 25-100A |
|---|
| Frame Type | HDL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Switchboards, Motor Control Centers, Industrial Control Panels |
| Wire Gauge | 14-3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Micrologic 3.2 Trip Unit, Shunt Trip 120V AC |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, True RMS Sensing, Visual Trip Indicator, RoHS Compliant, Mercury Free |
Product FAQs
8 answersWhat does the "U31X" suffix indicate on the HDM36100U31XSA?
The U31X suffix designates a Micrologic 3.2 electronic trip unit. This provides standard Long-Time and Instantaneous (LI) protection with adjustable dials for precise system coordination, unlike fixed thermal-magnetic units.
What does the "SA" suffix mean on this Square D circuit breaker?
The SA suffix indicates the breaker is equipped with a factory-installed 120VAC shunt trip accessory. This allows the breaker to be tripped remotely via a control signal for emergency stops or automated safety systems.
Can I install the HDM36100U31XSA in an I-Line panelboard?
No. The "M" in the HDM prefix indicates this is a unit-mount (feed-thru) breaker designed for switchboards, motor control centers, and industrial control panels. It does not have the plug-on jaw connections required for I-Line panelboards.
Does this breaker require a separate control power source for the shunt trip?
Yes, the factory-installed shunt trip (SA suffix) requires a dedicated 120VAC control power source to operate the remote tripping mechanism.
How does the HDM36100U31XSA differ from an HDA-prefix breaker?
The HDM prefix indicates a unit-mount (feed-thru) breaker with lugs on both ends. An HDA prefix indicates an I-Line plug-on breaker designed specifically for Square D I-Line panelboards.
Is the Micrologic 3.2 trip unit interchangeable on the HDM36100U31XSA?
No. Because this specific catalog number lacks a "T" or "R" suffix after the amperage rating, the trip unit is factory-sealed and cannot be field-replaced. If a different trip function is required, the entire breaker must be replaced.
What safety precautions should be taken before wiring the shunt trip on the HDM36100U31XSA?
Ensure all power sources, including the separate 120VAC control power for the shunt trip, are completely de-energized and locked out before making any wiring connections.
Can the HDM36100U31XSA replace older Square D 100A unit-mount breakers?
It can physically replace older 100A unit-mount breakers in compatible Square D switchboards, but because it includes a Micrologic electronic trip unit and a 120VAC shunt trip, you must ensure your control wiring and coordination requirements match these specific features.
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