Square D FH361001021 Molded Case Circuit Breaker
- 100A
- 3 Pole
- I-Line
Quantity
Square D FH361001021 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built to protect circuits against overloads and short circuits, the Square D FH361001021 is a 100A, 600VAC, 3-pole molded case circuit breaker. This FH series breaker has an F frame, I-Line mounting and lug terminals. Its fixed thermal and fixed magnetic trip functions provide long-time and instantaneous protection. Rated for 25kA interrupting capacity at 480VAC, it is HACR rated and has CSA and UL approvals.Specifications
| Brand | Square D |
|---|---|
| Part Number | FH361001021 |
| Series | FH |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 480VAC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG |
| 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 | Alarm Switch, Auxiliary Switch, Shunt Trip, Undervoltage Release |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Product FAQs
8 answersHow should I use the 100A rating when selecting the Square D FH361001021?
Use the 100A rated current to coordinate circuit loading and conductor ampacity. Include the breaker's 40C temperature rating when evaluating installation conditions.
What does the 600VAC voltage rating mean for circuit selection?
The breaker is rated for AC circuits up to 600VAC. Select it for a circuit voltage within that rating, and evaluate interrupting capacity at the circuit's operating voltage.
How do I evaluate its interrupting capacity for a 480VAC installation?
The interrupting rating is 25kA at 480VAC. At that voltage, the available fault current at the installation point must not exceed 25kA.
How does the thermal-magnetic trip work, and can I adjust it?
The thermal element provides long-time overload protection, while the magnetic element provides instantaneous response to short-circuit current. Both elements are fixed, so select the breaker with those fixed trip characteristics in mind.
What conductor sizes can I connect to the lugs?
The lug conductor range is 14-1/0 AWG. Select a conductor within that range whose ampacity meets the circuit requirements; terminal acceptance and conductor ampacity are separate selection checks.
How much physical space should I plan for the breaker?
The breaker measures 6.40 in high, 4.50 in wide, and 4.13 in deep. Use these dimensions when planning installation space and access for conductor routing and termination.
How do the three poles and neutral connection affect circuit planning?
The breaker has three poles for a three-phase circuit. Its neutral connection is not applicable, so plan any required neutral connection separately from the breaker.
When does the HACR rating matter?
HACR refers to heating, air-conditioning, and refrigeration applications. Use this rating as a selection criterion when equipment calls for a HACR-rated circuit breaker.
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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