Square D HLL36060U31X Molded Case Circuit Breaker
- 60A
- 3 Pole
- Unit Mount
Quantity
Square D HLL36060U31X - 60A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Delivering precise microprocessor-based protection, this 60-amp PowerPacT H-Frame breaker is engineered for demanding commercial environments. As a unit-mount device equipped with line and load lugs, it fastens securely into control panels, switchboards, and standalone enclosures. It features a Micrologic 3.2 electronic trip unit with adjustable long-time and instantaneous functions (LI). This advanced sensing technology ensures superior coordination and current-limiting performance.Specifications
| Brand | Square D |
|---|---|
| Part Number | HLL36060U31X |
| Series | HLL |
| Amperage | 60A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 125kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC |
| Amperage Range | 15-60A |
|---|
| Frame Type | HLL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Control Panels, Switchboards, Industrial Enclosures |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL, UKCA |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, True RMS Sensing, 80% Rated |
Product FAQs
7 answersWhat does the U31X suffix mean in the HLL36060U31X catalog number?
The U31X suffix indicates the breaker is equipped with a Micrologic 3.2 electronic trip unit. This provides adjustable Long-Time and Instantaneous (LI) protection functions, offering more precise coordination than standard thermal-magnetic trip units.
What does the first L in the HLL frame designation stand for?
The first L indicates the interrupting rating tier within the PowerPacT H-Frame family. L-interrupting breakers are rated for up to 125kA at 240V AC, 100kA at 480V AC, and 50kA at 600V AC.
How does the HLL36060U31X mount inside a panel?
This is a unit-mount circuit breaker. It installs using standard mounting hardware and features feed-thru line and load lugs rather than plugging into an I-Line busway.
Can I use this breaker in an I-Line panelboard?
No. The HLL36060U31X is a unit-mount breaker with line and load lugs. For an I-Line panelboard, you need an I-Line version of the PowerPacT H-Frame breaker, which typically has an A in the third position of the catalog number (such as HLA).
Is the HLL36060U31X a 100% rated circuit breaker?
No, this is a standard 80% rated circuit breaker. Continuous loads should not exceed 80% of its 60A nominal rating (48A) unless specifically applied in an assembly listed for 100% continuous operation.
Does this breaker include a push-to-trip button?
Yes, PowerPacT H-Frame circuit breakers feature an integral push-to-trip button on the cover. This allows you to manually trip the breaker to verify the mechanical operation of the trip mechanism.
What accessories are compatible with the HLL36060U31X?
PowerPacT H-Frame breakers accept a wide range of field-installable accessories, including shunt trips, undervoltage releases, auxiliary switches, and alarm switches. These install into dedicated accessory compartments behind the front cover.
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