Square D HDA260452 Molded Case Circuit Breaker
- 45A
- 2 Pole
- I-Line
Square D
HDA260452
Molded Case Circuit Breaker
Brand
Square D
SKU
HDA260452
Quantity
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Square D HDA260452 - 45A 2 Pole Molded Case Circuit Breaker
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Quantity
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Description
Providing robust circuit protection, the Square D HDA260452 serves as a 2-pole, 45A molded case circuit breaker from the PowerPacT H-Frame lineup. It features a thermal-magnetic trip unit configured for long-time and instantaneous (LI) fault response. This breaker is engineered to mount into Square D I-Line panelboards and switchboards. Equipped with an AC phase connection, it acts as the recommended substitute for the obsolete FA26045AC, ensuring a perfect fit for existing infrastructure.Specifications
| Brand | Square D |
|---|---|
| Series | HDA |
| Amperage | 45A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HDA |
|---|---|
| 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 | 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, Rotary Handle, Lug Kits, Terminal Shields |
|---|---|
| Accessories | Phase Connection AC |
| 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, Non-Interchangeable Trip, 80% Rated, Phase Connection AC |
Product FAQs
5 answersCan the HDA260452 replace older Square D I-Line circuit breakers?
Yes, the PowerPacT H-frame is the direct modern replacement for legacy Square D FA and FH frame I-Line circuit breakers. It mounts into the same I-Line panelboards and switchboards.
What does the D in the HDA260452 catalog number signify?
The D indicates the interrupting capacity tier of the breaker. This specific model provides 25 kAIC at 240VAC, 18 kAIC at 480VAC, and 14 kAIC at 600VAC.
What phase connection does the HDA260452 use?
The 2 at the end of the catalog number indicates this 2-pole breaker is factory-configured for an A and C phase connection on the I-Line bus.
What are the load lug torque specifications for the HDA260452?
The load-side lugs require a tightening torque of 44.3 lbf-in for 14 to 10 AWG wire, and 123.9 lbf-in for 8 to 3/0 AWG wire.
Can the HDA260452 be installed in standard Square D load centers?
No. This breaker is equipped with an I-Line plug-on bracket and is only compatible with commercial and industrial Square D I-Line panelboards and switchboards. It will not fit QO or Homeline load centers.
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