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Eaton / Cutler-Hammer FDB3020L Molded Case Circuit Breaker

  • 20A
  • 3 Pole
  • Unit Mount
Eaton / Cutler-Hammer FDB3020L
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU FDB3020L
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  • 20A
  • 3 Pole
  • Unit Mount

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Eaton / Cutler-Hammer FDB3020L - 20A 3 Pole Molded Case Circuit Breaker

Eaton / Cutler-Hammer FDB3020L - 20A 3 Pole Molded Case Circuit Breaker

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$670.60 In Stock

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Description

Part of the Series C family, the Eaton FDB3020L delivers robust thermal-magnetic protection for commercial applications. This 3-pole, 20A molded case circuit breaker is engineered for reliable performance up to 600VAC. It installs into Eaton Series C panelboards, switchboards, and motor control centers. The unit-mount design includes line and load lugs for straightforward integration. Rated 14 kAIC at 480VAC, this F-Frame breaker is HACR rated and reverse feed capable for versatile setups.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number FDB3020L
Series FDB
Amperage 20A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC
Fit and installation
Frame Type F
Terminal Type Lugs
For Use With Eaton Series C Panelboards, Switchboards, Motor Control Centers
Wire Gauge 14-1/0 AWG (Cu/Al)
Max Wire 1/0 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Line and Load Lugs
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, Reverse Feed

Product FAQs

6 answers
What equipment is the FDB3020L designed to be installed in?

This F-frame breaker is compatible with Eaton Series C panelboards, switchboards, and motor control centers. It can also be used to replace older Westinghouse FDB breakers in existing enclosures.

What does the "L" suffix in the FDB3020L catalog number indicate?

The "L" signifies that the breaker comes with both line and load lugs factory-installed. Models without the "L" suffix, such as the FDB3020, typically only include load-side terminals.

What does the LI trip function mean for this 20A breaker?

The LI designation means the breaker provides both Long-Time (thermal) and Instantaneous (magnetic) protection. For this specific F-frame model, both the thermal and magnetic trip settings are fixed and cannot be adjusted in the field.

How is the FDB3020L mounted in a panel?

This is a unit-mount, feed-thru circuit breaker. It bolts directly to the mounting surface or enclosure backpan and connects to the circuit via wire conductors, rather than plugging into a busbar.

Is the FDB3020L reverse feed capable?

Yes, this thermal-magnetic F-frame breaker does not have a line or load restriction and is capable of being reverse fed.

Is the FDB3020L HACR rated?

Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
Rating
Ratings
2 reviews
  • B
    Brent
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer FDB3060 - 60A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/18/26
    Breaker was as expected.

    Breaker was clean, you could not tell it was used.

  • RF
    Russell F.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer FDB3025 - 25A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/24/26
    Right product, right time

    This is what I needed, and I got it in time.