Cutler Hammer by Eaton

Cutler Hammer, by Eaton was founded in 1893, once part of Westinghouse, and now under the Eaton umbrella, Cutler Hammer pioneered the very first motor starters. Cutler-Hammer provides a wide range of electrical control and power distribution products designed to enhance efficiency and safety in industrial and commercial applications. Their product line includes circuit breakers, motor control centers, and switches, offering reliable protection and precise control of electrical systems. With a strong emphasis on innovation and performance, Cutler-Hammer products are widely used in industries such as manufacturing, energy, and construction, helping to ensure efficient power management and system safety.

Circuit Breakers – Relays – Panels – Contactors – Pushbuttons – Molded Cases – Overload Heaters – SPDT – Indicators – Motor Starters – Transformers – Westinghouse – Drives – Power Distribution – Meter Controls – Microgrid Energy – Power Supplies – Switches – Speed Regulators

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Cutler Hammer D15CR40 Contactor

Cutler Hammer D15CR40 Contactor

Cutler Hammer 10250T103 Pushbutton Operator

Cutler Hammer 10250T103 Pushbutton Operator

Cutler Hammer H2004B Heater Pack

Cutler Hammer H2004B Heater Pack

Cutler Hammer WMS1D01 Circuit Breaker

Cutler Hammer WMS1D01 Circuit Breaker

Cutler Hammer 92-01413-04 Series 500 PanelMate Interface 542VM

Cutler Hammer 92-01413-04 Series 500 PanelMate Interface 542VM

Cutler Hammer FD3020 Circuit Breaker FD35K

Cutler Hammer FD3020 Circuit Breaker FD35K

Cutler Hammer 10250T2 Contact Block

Cutler Hammer 10250T2 Contact Block

Cutler Hammer C306DN3 Overload Relay

Cutler Hammer C306DN3 Overload Relay

Eaton Cutler Hammer Circuit Breakers – Great Price

Eaton Cutler Hammer Circuit Breakers – Great Price

Need Expert Cutler-Hammer Sourcing?

Cutler-Hammer electrical distribution hardware and motor controls are essential for keeping your power systems safe and operational. Because these industrial platforms rely on exact combinations of frame sizes, interrupting capacities, trip unit styles, and matching coil voltages, sourcing replacement hardware for a legacy panel or an active Motor Control Center (MCC) demands technical precision. Contact our dedicated electrical sourcing team today to locate your specific circuit breaker, replacement contactor, or drop-in hardware module.

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Worked Examples: Decoding Cutler-Hammer Catalog Numbers

Cutler-Hammer catalog strings use a position-specific alphanumeric structure to outline framework features, rating tiers, and circuit parameters. Review the system tracking configurations below to translate your active hardware codes.

Series C Molded Case Circuit Breaker

• HFD3100 — Series C 3-Pole 100A Industrial Circuit Breaker

H (High Interrupting Capacity Rating Tier) • FD (F-Frame Mechanical Style Class) • 3 (3-Pole Internal Circuit Configuration) • 100 (100 Amp Continuous Current Rating Index)

Freedom Series NEMA Motor Contactor

• CN15DN3A — Freedom Series Size 1 Non-Reversing Contactor

CN15 (Freedom Series Non-Reversing Contactor Class) • D (NEMA Size 1 / Frame Size D Core) • N (Open Style Enclosure Architecture) • 3 (3-Pole Power Configuration Block) • A (120V AC, 60Hz Control Coil Designation Suffix)

Electrical Control Maintenance Tip: If a Cutler-Hammer Freedom Series contactor fails to pull in, you don’t necessarily need to replace the entire mechanical assembly. Sourcing a matching replacement coil code allows you to swap out the burnt internal electromagnetic module by releasing the top housing clips. This lets you service the device while leaving your primary line, load, and field control wiring completely undisturbed.

Cutler-Hammer Electrical FAQ

Maintaining safe distribution systems and motor cells demands an accurate understanding of legacy product frames, component parameters, and code updates. Review our hardware support answers below.

What differentiates Cutler-Hammer Series C and Series G circuit breakers?
The Series C line is a classic, highly dependable legacy circuit breaker platform utilizing traditional thermal-magnetic trip structures with standard industry interrupting ratings. The Series G family represents a more compact, modern global hardware design, featuring higher internal fault interrupting capacities, built-in electronic trip unit choices, and flexible field-installable internal accessories.
How do I verify the correct heater pack code for a Cutler-Hammer overload relay?
Thermal heater packs (such as the standard H2000 or legacy A200 series) must always be sourced based on the precise Full Load Amps (FLA) listed on the motor nameplate, rather than the contactor frame size. Matching the exact amp-range index guarantees that the bi-metallic strips inside execute precise thermal trip protection under fault conditions without causing nuisance line drops.
Can replacement hardware be sourced for legacy Cutler-Hammer Motor Control Centers (MCCs)?
Yes. Mature Cutler-Hammer MCC platforms like the Unitrol, F10, 9800, and Freedom lineups have an extensive active footprint. Sourcing replacement buckets, interior wrappers, power line stabs, door mechanisms, or standalone starter cards allows you to easily restore or update faulted sections without executing full, capital-heavy distribution panel upgrades.
What do the terminal suffix letters mean on Freedom series contactor part numbers?
The trailing alphanumeric code explicitly identifies the operating control voltage of the internal magnetic coil loop. In the NEMA Freedom family, an A specifies a standard 120VAC 60Hz / 110VAC 50Hz coil setup, a B indicates 240VAC, and a W signals 480VAC. Matching this suffix exactly prevents instant coil burnouts or failures to seat during equipment handshakes.

Ready to locate your replacement Cutler-Hammer component?

TCI Supply stocks an active inventory of current and obsolete Cutler-Hammer circuit breakers, starters, contactors, and MCC parts. Contact our technical team directly at 1-800-755-2883 or email an image of your hardware label to receive a fast, competitive quote.

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