Square D FH360701021 Molded Case Circuit Breaker
- 70A
- 3 Pole
- I-Line
Quantity
Square D FH360701021 - 70A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for remote operation, the Square D FH360701021 includes a factory-installed 120-240VAC shunt trip. This 70A thermal-magnetic breaker delivers essential long-time and instantaneous (LI) defense for industrial networks. The 3-pole unit is designed to plug into Square D I-Line panelboards. It functions as an exact replacement for legacy F-Frame installations and crosses over to the modern HGA36070 series. Capable of handling 65kAIC at 240VAC, it ensures robust fault clearing.Specifications
| Brand | Square D |
|---|---|
| Part Number | FH360701021 |
| Series | FH |
| Amperage | 70A |
| 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), 12-1/0 AWG (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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Shunt Trip 120-240VAC (Factory Installed) |
| Standards | CSA C22.2 No. 5, HACR, 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 |
Product FAQs
7 answersWhat does the 1021 suffix indicate on the FH360701021 catalog number?
The 1021 suffix designates that this breaker includes a factory-installed 120/240VAC shunt trip accessory. This allows the breaker to be opened remotely via a control voltage signal, which is commonly required for emergency shutdown or fire alarm integration.
What is the modern replacement for the legacy FH360701021 circuit breaker?
The Square D F-Frame series is a legacy product. The direct modern equivalent is the PowerPact H-Frame series, specifically the HGA36070. To match the exact functionality of the FH360701021, the replacement H-Frame breaker must be equipped with a compatible 120/240VAC shunt trip accessory.
Which panelboards are compatible with the FH360701021?
This breaker features an I-Line plug-in mounting design and is exclusively compatible with Square D I-Line panelboards and switchboards. It cannot be used in standard unit-mount or load center applications.
How does the I-Line mounting system connect to the panelboard?
The I-Line design utilizes plug-on jaws that grip the panelboard bus bars directly. This establishes the line-side electrical connection and mechanical mounting simultaneously, eliminating the need for separate line-side cables or mounting hardware.
What wire sizes are accepted by the load side terminals?
The standard load lugs on this breaker accept 14 to 1/0 AWG copper wire or 12 to 1/0 AWG aluminum wire.
Are the trip settings adjustable on this F-Frame breaker?
No, the FH360701021 features a fixed thermal and fixed magnetic trip unit. It provides standard long-time and instantaneous (LI) protection without adjustable dials for the trip curve.
Can the FH360701021 be used in direct current (DC) systems?
Yes, this thermal-magnetic breaker is rated for DC applications up to 250VDC, where it provides a 10kA interrupting capacity.
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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