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Square D BDA160505 Molded Case Circuit Breaker
- 50A
- 1 Pole
- I-Line
Square D
BDA160505
Molded Case Circuit Breaker
Brand
Square D
SKU
BDA160505
Quantity
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Square D BDA160505 - 50A 1 Pole Molded Case Circuit Breaker
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Description
The BDA160505 is a commercial molded case circuit breaker from Square D's PowerPacT B-frame family. It provides long-time and instantaneous (LI) thermal-magnetic trip functions for 50A circuits. Featuring an I-Line mounting configuration with a phase C connection, it installs into Square D I-Line panelboards and replaces legacy FA14050C breakers. Rated for 25kAIC at 240VAC, this HACR-rated unit includes a visual trip indicator for quick status identification.Specifications
| Brand | Square D |
|---|---|
| Series | BDA |
| Amperage | 50A |
| 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 |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-2/0 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 |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No 5, EN/IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
9 answersWhat does the 5 at the end of the BDA160505 catalog number indicate?
The 5 suffix designates a C phase connection for the I-Line plug-on jaw. This allows the single-pole breaker to connect specifically to the C phase bus in Square D I-Line panelboards and switchboards.
Can I use the BDA160505 in a standard QO or NF series panelboard?
No, this breaker features an I-Line style plug-in connection. It is exclusively designed for use in Square D I-Line panelboards and switchboards, and will not fit QO, NF, or NQ panels.
What wire sizes and materials are accepted by the load side lugs on this breaker?
The load side mechanical lugs accept 14 AWG to 2/0 AWG wire and are rated for both copper (Cu) and aluminum (Al) conductors. The line side connects directly to the panelboard bus via the I-Line jaw.
Is the trip unit on the BDA160505 adjustable?
No, this breaker features a fixed thermal and fixed magnetic trip unit. It provides standard long time and instantaneous protection without field-adjustable settings.
Does this breaker support reverse feeding?
I-Line breakers are generally not designed for reverse feeding due to their plug-on jaw line connection. The jaw must connect to the panelboard bus, while the load side utilizes mechanical lugs.
How does the I-Line connection handle high fault currents?
The I-Line plug-on design features blow-on type connections. During high-level short circuits, the magnetic forces generated draw the connector jaws tighter, gripping the bus bar more firmly for a secure connection.
Does the BDA160505 include a push-to-trip feature?
Yes, PowerPacT B-Frame circuit breakers include an integral push-to-trip button on the front cover. This allows you to manually trip the breaker to verify the mechanical operation of the trip mechanism and auxiliary devices.
Is the BDA160505 rated for 100 percent continuous operation?
No, this is a standard-rated breaker. Per the National Electrical Code, it is designed to be applied continuously at up to 80 percent of its 50A rating.
What internal mechanism does the PowerPacT B-Frame use to clear faults?
All PowerPacT B-Frame circuit breakers are equipped with dual-break rotating contacts. This design reduces the amount of peak current and let-through energy during a short circuit fault.
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