Square D HDL36100U44X Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Quantity
Square D HDL36100U44X - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Square D HDL36100U44X molded case circuit breaker is a 100A, 3-pole PowerPacT H-Frame breaker with an 80% continuous load rating. It has an adjustable electronic LSIG trip and a MicroLogic 6.2 A trip unit. Interrupting ratings are 25kA at 240VAC (UL 489), 18kA at 480VAC, 14kA at 600VAC and 20kA at 250VDC. This HACR rated breaker has unit mounting, line and load side lug connections, and a 14-3/0 AWG Cu/Al conductor range.Specifications
| Brand | Square D |
|---|---|
| Part Number | HDL36100U44X |
| Series | HDL |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 480Y/277VAC, 600VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Amperage Range | 35-100A |
|---|
| Frame Type | HDL |
|---|---|
| Terminal Type | Lugs |
| Wire Gauge | 14-3/0 AWG (Cu/Al) |
| 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 |
| Available Options | Alarm Switch, Auxiliary Switch, Motor Operator, Padlock Attachment, Rotary Handle, Undervoltage Release |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
9 answersHow should I size a continuous load for the Square D HDL36100U44X?
Use the 80% continuous load rating when sizing a continuous load against the 100A rated current. Do not treat the full 100A rating as the continuous-load allowance.
How do I select this breaker for AC voltage and available fault current?
The AC voltage ratings are 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC and 600VAC. Interrupting ratings are 25kA at 240VAC under UL 489, 18kA at 480VAC and 14kA at 600VAC. Select for the system voltage and ensure available fault current does not exceed the corresponding interrupting rating.
What protection does the MicroLogic 6.2 A electronic trip unit offer?
Its LSIG functions provide long-time, short-time, instantaneous and ground-fault protection. These functions address sustained overloads, short-circuit conditions and ground faults, guiding protection coordination for the circuit.
What current adjustment range can I use for protection settings?
The adjustable electronic trip range is 35-100A. Select a setting within that range based on conductor ampacity, load requirements and protection coordination, while keeping the 80% continuous load rating in the sizing calculation.
What conductors can I terminate, and how are the connections made?
The conductor range is 14-3/0 AWG for copper or aluminum, with lug connections on both the line and load sides. Select conductor material and size within that range, then verify ampacity separately for the circuit load and installation conditions.
What mounting method and dimensions should I plan around?
This unit-mount breaker measures 4.09 in wide, 6.4 in high and 3.4 in deep. Use those dimensions to plan the mounting layout and account separately for conductor routing and termination access.
What phase and frequency requirements should I check?
This is a 3-pole breaker rated for 3-phase service at 50/60Hz. Check phase configuration and operating frequency along with voltage and interrupting ratings during selection.
What does the HACR rating mean for equipment selection?
HACR refers to heating, air-conditioning and refrigeration applications. The HACR rating is relevant when equipment requirements call for a HACR-rated breaker; also check the required current, voltage and interrupting ratings.
What operating temperature range should I account for?
The operating temperature range is -25 to 70 °C. Evaluate the temperature at the breaker location, including heat from surrounding equipment, to keep operation within that range.
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