Square D HDL36150U44X Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Quantity
Square D HDL36150U44X 3 Pole Circuit Breaker
New
Quantity
Description
Square D HDL36150U44X 3 Pole Circuit Breaker
The Square D HDL36150U44X is a 3 Pole solid state molded case circuit breaker with a current rating of 150 Amps and a voltage rating of 600VAC, 250VDC. It has an interrupting rating of 25kAIC at 240VAC, 18kAIC at 480VAC. The HDL36150U44X has a feed-thru connection type and includes long time, short time, instantaneous and ground fault trip functions.
Specifications
| Brand | Square D |
|---|---|
| Series | PowerPacT H |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC |
| Frame Type | H |
|---|---|
| Terminal Type | Lugs |
| Wire Gauge | 14-3/0 AWG |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSIG |
| Trip Function | Long-Time, Short-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Standards | RoHS, REACh, HACR |
|---|---|
| Approval | CE, UL, CSA, NEMA, NOM, IEC |
| Temp Rating | -25 to 70 °C |
Product FAQs
9 answersWhat does the U44X suffix indicate on this circuit breaker?
The U44X suffix indicates the breaker is equipped with a Micrologic Ammeter electronic trip unit featuring LSIG (Long-time, Short-time, Instantaneous, and Ground Fault) protection functions.
Does the HDL36150U44X include equipment ground fault protection?
Yes, the G in the LSIG trip function stands for equipment ground fault protection, which is integrated directly into the Micrologic trip unit on this model.
Is this breaker suitable for use in an I-Line panelboard?
No, the HDL36150U44X is a unit-mount circuit breaker designed with feed-thru lug connections. For I-Line panelboard installations, an I-Line specific breaker with a plug-on connection is required.
Can I mount this H-frame breaker on a DIN rail?
Yes, PowerPact H-frame unit-mount circuit breakers can be installed on a standard 35mm DIN rail by using a separate DIN rail mounting adapter kit.
Are the line and load lugs on this breaker removable?
Yes, the factory-installed lugs on PowerPact H-frame unit-mount breakers are removable. This allows for the installation of alternative termination options such as compression lugs or power distribution blocks.
Does this breaker provide full energy management monitoring?
No, the U44X trip unit includes an integrated ammeter for current monitoring only. For full energy management and power quality capabilities, a trip unit with the U54X suffix is required.
How do I manually test the tripping mechanism on this breaker?
The breaker features an integral push-to-trip button located on the front cover. Pressing this button allows you to manually trip the mechanism to verify proper mechanical operation before commissioning.
Can I field-install accessories like a shunt trip or auxiliary switch in this breaker?
Yes, PowerPact H-frame breakers feature a modular design with accessory compartments behind the front cover. This allows for the field installation of internal accessories like auxiliary switches, shunt trips, and undervoltage releases.
Is the electronic trip unit on the HDL36150U44X interchangeable?
No, the Micrologic electronic trip units on PowerPact H-frame circuit breakers are factory-sealed and non-interchangeable. The entire breaker must be replaced if a different trip unit configuration is needed.
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