Square D HDA261104 Molded Case Circuit Breaker
- 110A
- 2 Pole
- I-Line
Square D
HDA261104
Molded Case Circuit Breaker
Brand
Square D
SKU
HDA261104
Quantity
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Square D HDA261104 - 110A 2 Pole Molded Case Circuit Breaker
New
Quantity
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Description
Operating as a 2-pole, 110A molded case circuit breaker, the HDA261104 belongs to Square D's PowerPacT H-Frame family. Built for commercial and industrial power distribution, it features a current-limiting design and thermal-magnetic trip technology with long-time and instantaneous (LI) protection. This unit mounts into Square D I-Line panelboards and switchboards, utilizing a BC phase connection. Rated for 25 kAIC at 240VAC, this HACR-rated breaker includes a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Series | HDA |
| Amperage | 110A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HDA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Phase Connection BC |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UKCA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed, 80% Rated, Phase Connection BC |
Product FAQs
8 answersWhat type of panelboards accept the HDA261104 circuit breaker?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features a plug-on jaw connection on the line side that mounts directly to the I-Line bus stack.
What does the "4" suffix in the HDA261104 catalog number indicate?
The "4" at the end of the catalog number specifies a factory-configured BC phase connection. This means the breaker will draw power from the B and C phases when mounted on the I-Line bus.
What is the magnetic trip range for this 110A H-frame breaker?
The HDA261104 features a fixed thermal trip and an adjustable magnetic trip. The magnetic trip range for the 110A model is adjustable from 900A to 1700A.
Can the HDA261104 be used in reverse-feed applications?
No. While many thermal-magnetic PowerPacT H-frame breakers are suitable for reverse feeding, I-Line breakers like the HDA261104 cannot be reverse-fed due to their plug-on jaw connection design.
What is the difference between the HDA261104 and the HGA261104?
The difference is the interrupting rating. The HDA model has a standard interrupting rating of 18kA at 480VAC, while the HGA model has a higher interrupting rating of 35kA at 480VAC. Both share the same physical dimensions and I-Line mounting.
Does this breaker require a separate mounting bracket for installation?
No separate bracket is required. The HDA261104 includes the integral I-Line mounting bracket and plug-on jaws on the line side, allowing it to snap directly onto the panelboard bus.
Is this breaker rated for continuous operation at 100 percent of its 110A rating?
No. Like most standard thermal-magnetic molded case circuit breakers, the HDA261104 is rated for 80 percent continuous load operation per NEC guidelines.
What legacy Square D circuit breaker does the HDA261104 replace?
The HDA261104 is the direct, modern PowerPacT H-frame replacement for the obsolete KA261104 (K-frame) I-Line circuit breaker. It fits into the same panelboard space and offers upgraded thermal-magnetic protection.
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