Square D HRA36060U31X Molded Case Circuit Breaker
- 60A
- 3 Pole
- I-Line
Quantity
Square D HRA36060U31X - 60A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of the PowerPacT H-Frame series, the Square D HRA36060U31X delivers advanced protection for commercial and industrial environments. This 60A, 3-pole MCCB features a Micrologic 3.2 electronic trip unit for precise coordination via adjustable long-time and instantaneous settings. It utilizes an I-Line mounting style that installs into compatible Square D panelboards and switchboards. Rated 200kAIC at 480V, this current-limiting device offers true RMS sensing and is HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | HRA36060U31X |
| Series | HRA |
| Amperage | 60A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC, 100kA @ 600VAC |
| Amperage Range | 15-60A |
|---|
| Frame Type | HRA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 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 |
| Trip Unit Model | MicroLogic 3.2 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Micrologic 3.2 Trip Unit |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL |
| Temp Rating | -2C to 70C |
| Construction Features | HACR Rated, Current Limiting, True RMS Sensing, 80% Rated, RoHS Compliant |
Product FAQs
8 answersWhich panelboards are compatible with the HRA36060U31X?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features a plug-in jaw on the line side that connects directly to the I-Line bus stack and is not compatible with NQ, NF, or QO load centers.
What advantages does the Micrologic 3.2 trip unit offer over standard thermal-magnetic breakers?
The Micrologic 3.2 is an electronic trip unit that provides adjustable Long-Time (L) and Instantaneous (I) settings. This allows electricians and panel builders to precisely tune the trip curve for better system coordination, which is not possible with fixed thermal-magnetic breakers.
How does the I-Line mounting system work on the HRA36060U31X?
The breaker features integrated plug-in jaws on the line side that push directly onto the panelboard bus stack. This eliminates the need for line-side cabling, significantly reducing installation time compared to traditional unit-mount breakers. The load side utilizes standard mechanical lugs.
What does the R in the HRA36060U31X catalog number indicate?
The R designates the interrupting rating tier within the PowerPact H-Frame series. It signifies an ultra-high interrupting capacity, providing up to 200 kA at 480 V AC and 100 kA at 600 V AC for systems with extremely high available fault currents.
Can the HRA36060U31X be reverse fed?
No. Because this breaker uses an I-Line plug-in connection on the line side and mechanical lugs on the load side, it is strictly directional and cannot be reverse fed.
Can I upgrade an existing thermal-magnetic H-Frame breaker to this electronic trip model?
Yes. The HRA36060U31X shares the exact same physical dimensions and I-Line mounting footprint as thermal-magnetic PowerPact H-Frame breakers. It can serve as a direct drop-in replacement when adjustable electronic trip functions are required.
Does this breaker require a separate mounting bracket for installation?
No. The HRA36060U31X is a self-contained I-Line breaker. The mounting bracket and line-side plug-in jaws are integrated into the breaker frame, allowing it to mount directly to the I-Line bus stack without additional hardware.
What is the maximum frame capacity of the HRA36060U31X?
This breaker is built on the PowerPact H-Frame platform, which has a maximum capacity of 150 amps. However, this specific model is factory-equipped with a 60-amp sensor and Micrologic 3.2 trip unit.
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