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Square D BDA160405 Molded Case Circuit Breaker
- 40A
- 1 Pole
- I-Line
Square D
BDA160405
Molded Case Circuit Breaker
Brand
Square D
SKU
BDA160405
Quantity
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Square D BDA160405 - 40A 1 Pole Molded Case Circuit Breaker
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Description
Built for commercial distribution, the Square D BDA160405 is a 40A, 1-pole molded case circuit breaker from the PowerPacT B-Frame family. It delivers reliable thermal-magnetic (LI) protection for demanding electrical systems. This unit installs into Square D I-Line panelboards and switchboards. Featuring a Phase C connection, it serves as a drop-in replacement for the legacy FA16040 breaker.Specifications
| Brand | Square D |
|---|---|
| Series | BDA |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 600Y/347VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 10kA @ 125VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Rotary Handle, Motor Operator |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No 5, EN/IEC 60947-2, EN/IEC 60947-5-1, GB 14048.2, NEMA AB 1, NMX J-266, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, Reverse Feed |
Product FAQs
9 answersWhat panelboards are compatible with the BDA160405 circuit breaker?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. Its I-Line plug-in connection allows it to mount directly onto the panel's busbar system without the need for additional mounting brackets.
How much mounting space does this 1-pole B-frame breaker occupy in an I-Line panel?
The PowerPacT B-frame 1-pole circuit breaker occupies 1.06 inches (27 mm) of mounting space on the I-Line bus.
Does the PowerPacT B-frame replace older Square D breakers?
Yes, the PowerPacT B-frame series is the designated modern replacement for legacy Square D F-frame circuit breakers, including the FA and FH series, offering updated technology in a compact footprint.
What does the "D" in the BDA160405 part number signify?
In the PowerPacT B-frame nomenclature, the "D" indicates the interrupting rating tier. For this breaker, it signifies a maximum capacity of 25kA at 240VAC, 18kA at 480Y/277VAC, and 14kA at 600Y/347VAC.
What wire sizes are accepted by the lugs on the BDA160405?
The factory-installed mechanical lugs accept 14 AWG through 2/0 AWG aluminum or copper conductors.
Can the BDA160405 be used in DC electrical systems?
Yes, this thermal-magnetic breaker is dual-rated for AC and DC systems. It supports DC applications up to 125VDC with a 10kA interrupting rating.
Does this breaker include a manual testing feature?
Yes, all PowerPacT B-frame circuit breakers feature an integral push-to-trip button on the front cover, allowing you to manually trip the breaker to verify the mechanical operation of the trip mechanism.
What internal contact design does the PowerPacT B-frame use?
It utilizes dual-break rotating contacts. This design helps reduce the amount of peak let-through current during a short circuit fault, enhancing overall equipment protection.
Can I use this 1-pole breaker on an ungrounded 480V or 600V delta system?
No. The 480Y/277VAC and 600Y/347VAC slash ratings mean this breaker is only suitable for use on solidly grounded wye systems where the voltage to ground does not exceed 277V or 347V, respectively. It is not rated for ungrounded or corner-grounded delta systems at those voltages.
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