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Square D BDL36040 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Unit Mount
Square D
BDL36040
Molded Case Circuit Breaker
Brand
Square D
SKU
BDL36040
Quantity
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Square D BDL36040 - 40A 3 Pole Molded Case Circuit Breaker
New
Quantity
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Description
Built for demanding commercial applications, the 40A Square D BDL36040 provides robust thermal-magnetic protection. As part of the PowerPacT B-Frame series, it delivers consistent performance for motor control centers. The breaker mounts onto 35mm DIN rails or standard back pans. It serves as an exact replacement for older FAL36040 units, fitting perfectly into compatible switchboards. Featuring a 14kAIC rating at 600Y/347VAC, it includes a double-break rotary contact structure.Specifications
| Brand | Square D |
|---|---|
| Series | BDL |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 10kA @ 250VDC |
| Frame Type | B Frame |
|---|---|
| Terminal Type | Lugs |
| For Use With | Industrial Control Panels, Switchboards, Motor Control Centers |
| 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, Alarm Switch, Undervoltage Release, Rotary Handle, Motor Operator, Padlock Attachment, Terminal Shields |
|---|---|
| Accessories | EverLink Lugs |
| 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, Double-Break Rotary Contact Structure, 80% Rated |
Product FAQs
7 answersWhat do the letters in the BDL36040 catalog number mean?
In the Square D PowerPacT series, the "B" stands for the B-Frame size. The "D" denotes the interrupt rating class, providing 25 kA at 240V AC and 18 kA at 480V AC. The "L" indicates the termination type, which for this unit-mount model is factory-installed EverLink lugs on both ends.
Can I install this circuit breaker in a Square D I-Line panelboard?
No. The BDL36040 is a unit-mount circuit breaker meant for standard back-pan or DIN rail mounting. If your application requires an I-Line plug-in connection, you will need the I-Line version of this breaker, catalog number BDA36040.
What does the LI trip function code mean for this breaker?
The LI code indicates the breaker provides Long-Time (L) and Instantaneous (I) protection. Long-Time protection safeguards against persistent overloads, while Instantaneous protection trips immediately during severe short circuits. Both the thermal and magnetic trip thresholds on this model are fixed.
What type of lugs come standard with the BDL36040?
This unit-mount circuit breaker comes factory-installed with Square D EverLink lugs on both the line and load sides. EverLink lugs feature a creep-compensation design that helps prevent wire connections from loosening over time due to thermal cycling, vibration, or shock.
Can the BDL36040 be mounted on a DIN rail?
Yes. The unit-mount design of this PowerPacT B-Frame circuit breaker includes built-in mounting capability for standard 35x15mm symmetrical DIN rails. It can also be conventionally back-pan mounted using standard mounting screws.
What types of equipment typically use this B-Frame breaker?
This unit-mount molded case breaker is commonly integrated into industrial control panels, switchboards, and motor control centers (MCCs). It offers a compact footprint for OEM builders and facility maintenance upgrades.
Is the BDL36040 rated for use on direct current (DC) systems?
Yes. The BDL36040 is rated for use on 250V DC systems with a 10 kA maximum interrupting capacity. It can be applied in grounded negative, grounded middle point, and ungrounded DC configurations, making it suitable for specialized DC control applications.
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