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Square D BJL36020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Unit Mount
Square D
BJL36020
Molded Case Circuit Breaker
Brand
Square D
SKU
BJL36020
Quantity
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Square D BJL36020 - 20A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial distribution, the BJL36020 3-pole, 20A molded case circuit breaker belongs to Square D's PowerPacT B-Frame series. It mounts into enclosures and switchboards using a unit mount design with integrated DIN rail compatibility. Serving as a modern upgrade, it replaces legacy FCL34020 and FHL36020 breakers. Rated at 65 kAIC at 480V, it utilizes thermal-magnetic trip technology and patented EverLink lugs to ensure secure, maintenance-free wire terminations.Specifications
| Brand | Square D |
|---|---|
| Part Number | BJL36020 |
| Series | BJL |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 50kA @ 250VDC |
| Frame Type | B Frame |
|---|---|
| Terminal Type | Lugs |
| For Use With | Industrial Control Panels, Enclosures, 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Rotary Handle, Motor Operator |
|---|---|
| Accessories | EverLink Lugs (Line & Load) |
| 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, HACR, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Trip-Free Mechanism, Quick-Make/Quick-Break, Double-Break Rotary Contact Structure, Non-Interchangeable Trip |
Product FAQs
6 answersHow is the BJL36020 mounted in electrical systems?
The BJL36020 is a unit mount, feed-thru circuit breaker. It installs using built-in mounting hardware rather than plugging directly onto a busbar. It is designed for backpan or DIN-rail mounting in industrial control panels, standalone enclosures, and switchboards.
Is the BJL36020 compatible with Square D I-Line distribution panelboards?
No. This is a lug-in/lug-out unit mount breaker, meaning it requires wired connections on both the line and load sides. It lacks the specialized plug-on stab bracket required for use in I-Line panelboards.
Does the BJL36020 feature adjustable trip settings?
No, this thermal-magnetic breaker features fixed thermal (overload) and fixed magnetic (instantaneous short-circuit) trip settings. If your application requires adjustable trip curves, you will need to specify a breaker equipped with an electronic trip unit.
What wire sizes and materials are supported by the factory terminals on the BJL36020?
The factory-installed line and load lug terminals accept both aluminum and copper conductors. The terminals are rated for wire sizes ranging from 14 AWG up to 3/0 AWG.
How does the interrupting capacity of the BJL36020 scale with system voltage?
The short circuit rating scales down as system voltage increases. It provides a 100kA interrupting rating at 240V AC, drops to 65kA at 480V AC, and is rated for 25kA at 600V AC. It also carries a 50kA rating for 250V DC systems.
What protection functions are included with the LI trip unit designation?
The LI designation indicates the breaker provides core thermal-magnetic protective functions. It includes Long-Time (L) protection against sustained overloads and Instantaneous (I) protection which trips the breaker immediately during a severe short-circuit event.
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