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Square D BJA260704 Molded Case Circuit Breaker
- 70A
- 2 Pole
- I-Line
Square D
BJA260704
Molded Case Circuit Breaker
Brand
Square D
SKU
BJA260704
Quantity
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Square D BJA260704 - 70A 2 Pole Molded Case Circuit Breaker
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Description
Built for robust power distribution, the Square D BJA260704 is a 70A, 2-pole molded case circuit breaker within the PowerPacT B-Frame series. It is designed to handle demanding commercial and industrial electrical loads. Featuring a plug-on I-Line mounting style with a BC phase connection, this unit installs into Square D panelboards and switchboards. It replaces the older FH26070BC model. The breaker delivers a 65kAIC rating at 480V and includes fixed thermal-magnetic trip functions.Specifications
| Brand | Square D |
|---|---|
| Series | BJA |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 50kA @ 250VDC |
| Frame Type | BJA |
|---|---|
| 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 |
|---|---|
| Accessories | BC Phase Connection |
| Standards | CSA C22.2 No 5, EN/IEC 60947-2, 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, Current Limiting, Non-Interchangeable Trip, Reverse Feed, 80% Rated |
Product FAQs
7 answersWhat legacy Square D circuit breaker does the BJA260704 replace?
The PowerPacT B-frame BJA260704 is the modern replacement for the legacy F-frame FH26070BC circuit breaker. It maintains the same I-Line mounting space dimensions to easily retrofit into existing panels.
What phase connection does the BJA260704 use?
The 4 at the end of the BJA260704 catalog number indicates it is configured for a BC phase connection in I-Line panelboards.
What does the J in the BJA260704 catalog number signify?
The J designates the interrupting rating class. For this PowerPacT B-frame breaker, the J-class provides a 65kA interrupting rating at 480/277VAC and a 100kA rating at 240VAC.
Are the trip settings adjustable on the BJA260704?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip points are factory-calibrated and cannot be adjusted in the field.
How does the BJA260704 mount into a panel?
This breaker features an I-Line style plug-in mounting design. It stabs directly into the busbar of compatible Square D I-Line panelboards and switchboards, allowing for quick installation without the need for bolt-on connections.
What internal contact design does the BJA260704 use?
Like all PowerPacT B-frame breakers, it is equipped with dual-break rotating contacts. This design reduces the amount of peak current during a short circuit fault, lowering let-through currents and enhancing equipment protection.
Can the BJA260704 be used in DC applications?
Yes, this thermal-magnetic circuit breaker is rated for DC systems, providing a 50kA interrupting rating at 250VDC.
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