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Square D HJA36100SA Molded Case Circuit Breaker
- 100A
- 3 Pole
- I-Line
Square D
HJA36100SA
Molded Case Circuit Breaker
Brand
Square D
SKU
HJA36100SA
Quantity
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Square D HJA36100SA - 100A 3 Pole Molded Case Circuit Breaker
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Description
Providing advanced control for industrial systems, the Square D HJA36100SA is a 3-pole, 100A molded case circuit breaker. It includes a factory-installed 120VAC shunt trip, enabling remote disconnection for emergency shutdowns. This PowerPact H-Frame breaker utilizes an I-Line mounting configuration, fitting perfectly into Square D I-Line panelboards. It serves as a cross-reference for the legacy FA361001021. The unit delivers a 65 kAIC rating at 480VAC and features a thermal-magnetic trip.Specifications
| Brand | Square D |
|---|---|
| Part Number | HJA36100SA |
| Series | HJA |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line Switchboards |
| Wire Gauge | 14-3/0 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, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Shunt Trip 120VAC (Factory Installed) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed, 80% Rated |
Product FAQs
8 answersWhat does the "SA" suffix indicate on the HJA36100SA?
The "SA" suffix means this breaker comes with a factory-installed 120VAC shunt trip accessory. This allows the breaker to be tripped remotely, which is commonly used for emergency shutdowns or automated control systems.
Which legacy Square D breaker does the HJA36100SA replace?
This PowerPacT H-frame breaker is the direct modern replacement for the legacy FA-frame FA361001021. Both are 100A, 3-pole, 600V I-Line breakers equipped with a 120VAC shunt trip, though the HJA model offers higher interrupting capacities.
Can the HJA36100SA be installed in a standard NEMA enclosure or unit-mount application?
No, this specific catalog number features an I-Line plug-in connection designed exclusively for Square D I-Line panelboards and switchboards. For unit-mount or standard enclosure applications, a unit-mount H-frame breaker with line and load lugs is required.
Are the trip settings adjustable on the HJA36100SA?
This breaker features a thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings. While the continuous current overload protection is fixed at 100A, the instantaneous short-circuit magnetic trip threshold can be adjusted to properly coordinate with downstream devices or motor inrush currents.
What does the "J" in the HJA36100SA catalog number represent?
The "J" designates the interrupting rating tier within the Square D PowerPacT H-frame family. J-tier breakers provide high interrupting capacities, specifically 100kAIC at 240VAC and 65kAIC at 480VAC, making them suitable for systems with high available fault currents.
How is the HJA36100SA secured inside an I-Line panelboard?
As an I-Line style plug-in breaker, it features plug-on jaws that ratchet firmly onto the panel's vertical bus stack. It is then mechanically secured to the panelboard's mounting pan using a captive retaining screw, ensuring a safe and reliable connection without the need for line-side cables.
Can the HJA36100SA be used as a main breaker in an I-Line panel?
Yes, I-Line breakers can be used as either branch breakers or back-fed main breakers in Square D I-Line panelboards, provided the panel is configured to accept a back-fed main.
How can I manually test the mechanical tripping mechanism on the HJA36100SA?
The breaker is equipped with a push-to-trip button on the front face. Pressing this button manually exercises the tripping mechanism, moving the handle to the center tripped position to verify mechanical operation and ensure safety before maintenance.
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