Square D FC34030-1021 Molded Case Circuit Breaker
- 30A
- 3 Pole
- I-Line
Quantity
Square D FC34030-1021 - 30A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Integrating remote tripping capabilities, this 30A I-Line breaker comes with a factory-installed shunt trip mechanism designated by the 1021 suffix. It fits into Square D I-Line switchboards and panelboards to support complex control schemes. When sourcing a modern equivalent, the HJA36030SA serves as the replacement. The unit provides 65kAIC at 480VAC, fixed thermal-magnetic protection, and a Visi-Trip flag to simplify maintenance in commercial facilities.Specifications
| Brand | Square D |
|---|---|
| Part Number | FC34030-1021 |
| Series | FC |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC |
| Frame Type | FC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 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 | Load Side Lugs Included (AL50FA), Shunt Trip (Factory Installed) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Extra High Interrupting Capacity |
Product FAQs
8 answersWhat does the -1021 suffix indicate on the FC34030-1021?
The -1021 suffix indicates that this circuit breaker comes with a factory-installed 120VAC shunt trip mechanism. This accessory allows the breaker to be tripped remotely via a separate control circuit.
What is the modern replacement for the FC34030-1021?
The modern equivalent for this legacy FC-frame breaker is the PowerPact H-frame HJA36030SA. It provides the same 30A rating, I-Line mounting, and factory-installed shunt trip.
Which panelboards are compatible with the FC34030-1021?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It utilizes an I-Line style plug-in connection and cannot be used in standard load centers or NQ/NF panels.
Can I use aluminum wire with the FC34030-1021 lugs?
Yes, the standard lugs on this breaker are dual-rated for both copper (Cu) and aluminum (Al) conductors. They accept wire sizes ranging from 14 AWG to 4 AWG.
Is the FC34030-1021 suitable for 277V or 240V systems?
Yes, while it has a maximum voltage rating of 480VAC, it is fully rated for use on 277VAC and 240VAC systems. It provides an interrupting capacity of 65kA at 480/277VAC and 100kA at 240VAC.
Are the trip settings adjustable on this breaker?
No, the FC34030-1021 features a thermal-magnetic trip unit with fixed thermal (long-time) and fixed magnetic (instantaneous) settings.
How does the shunt trip mechanism operate on this breaker?
The factory-installed 120V shunt trip requires an external voltage source. When 120VAC is applied to the shunt trip coil terminals, it mechanically trips the breaker to open the circuit.
Does this breaker require a separate mounting bracket for installation?
No, as an I-Line style plug-in breaker, it mounts directly onto the bus assembly of an I-Line panelboard or switchboard without the need for additional mounting hardware.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
- AMAlan M.ReviewingSquare D FC34050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/25/21Breaker Order
All units were as described and sent quickly.
- JLJon L.ReviewingSquare D FC34030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/10/20SQ D Breaker
Needed an older breaker for a last minute job. Super Breakers had it in stock and it was in my hands in 2 days. Saved the day.