Square D FH360351021 Molded Case Circuit Breaker
- 35A
- 3 Pole
- I-Line
Quantity
Square D FH360351021 - 35A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for advanced control applications, this 3-pole, 35A MCCB features a factory-installed shunt trip. It provides essential thermal-magnetic protection for commercial systems. The breaker utilizes an I-Line mounting style for installation into Square D I-Line panelboards. When replacing this legacy unit, the BGA36035 can be used with a shunt trip accessory. It delivers a 65kAIC capacity at 240VAC with fixed LI trip functions. The unit is HACR rated and features a visual trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | FH360351021 |
| Series | FH |
| Amperage | 35A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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 | Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (Factory Installed) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Visual Trip Indicator, Non-Interchangeable Trip |
Product FAQs
6 answersWhat does the 1021 suffix indicate on the FH360351021 catalog number?
The 1021 suffix denotes a factory-installed 120/240V AC shunt trip. This accessory allows the breaker to be opened remotely via an external control signal. It is commonly used for emergency power-off (EPO) systems, fire alarm integrations, or automated safety shutdowns.
Is the FH360351021 a direct replacement for older F-frame breakers?
Yes, this breaker serves as a direct, drop-in replacement for older Square D F-frame breakers with matching specifications. It fits into existing I-Line panelboards without requiring busbar modifications or adapter kits, making it ideal for maintaining legacy systems.
How does the I-Line mounting system work for this breaker?
The I-Line plug-in design allows the breaker to snap directly onto the busbar stack of a Square D I-Line panelboard or switchboard. This eliminates the need for individual cable connections on the line side, significantly reducing installation time and ensuring a secure, phase-balanced connection.
Can the FH360351021 be installed in standard residential load centers?
No. This breaker is built with an I-Line plug-in mounting configuration, which is exclusively designed for Square D I-Line industrial panelboards and switchboards. It is not compatible with QO, Homeline, or standard unit-mount enclosures.
Are the trip settings on the FH360351021 adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the Long-Time (overload) and Instantaneous (short-circuit) trip functions are factory-set and cannot be adjusted in the field. For adjustable trip settings, a modern electronic trip breaker like the PowerPact series would be required.
Can this breaker be used in DC applications?
Yes, the FH360351021 is rated for use in DC circuits up to 250V DC, where it provides an interrupting capacity of 10kA. This makes it suitable for specific industrial control and battery backup applications that fall within these voltage and current limits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 10 reviews.
- DMDonald M.Verified BuyerReviewingSquare D FH36030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Excellent Service
The support team with Super Breakers went over and beyond in ensuring the breakers were on site for an emergency repair…
CAVA Construction Manager very pleased!
Donald Mayo
Mayo Electric
- PHpayton h.Verified BuyerReviewingSquare D FH36090 - 90A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/17/26great
great straightforward company has almost everything you could ever need in stock
- SGShawn G.Verified BuyerReviewingSquare D FH36020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/20/26Thanks !
Excellent service & gear per usual !
Thanks !
- EEarnestVerified BuyerReviewingSquare D FH36060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/3/25Fast delivery and quality
The breaker was in great condition.
- JPJason P.Verified BuyerReviewingSquare D FH36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/5/25Breakers
Order was placed and they came in on time in good condition