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Eaton / Cutler-Hammer EDS3125 Molded Case Circuit Breaker

  • 125A
  • 3 Pole
  • Bolt-On
Eaton / Cutler-Hammer EDS3125
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU EDS3125
Select Item Condition
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  • 125A
  • 3 Pole
  • Bolt-On

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Eaton / Cutler-Hammer EDS3125 - 125A 3 Pole Molded Case Circuit Breaker

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$870.00 In Stock

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Description

Providing essential overcurrent defense for industrial environments, this 125A molded case circuit breaker features a non-interchangeable trip unit. The Series C device utilizes fixed thermal and magnetic elements to ensure precise long-time and instantaneous protection. Designed for bolt-on installation, it fits perfectly into Eaton Series C panelboards and switchboards. The breaker includes load side lugs suitable for 4 AWG to 4/0 AWG wiring. It handles 42kAIC at 240VAC and is HACR rated.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number EDS3125
Series EDS
Amperage 125A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC, 125VDC
Phase 3
AIC Rating 42kA @ 240VAC, 10kA @ 125VDC
Fit and installation
Frame Type ED
Terminal Type Lugs
For Use With Eaton Series C Panelboards, Switchboards, Motor Control Centers
Wire Gauge 4 AWG - 4/0 AWG (Cu/Al)
Max Wire 4/0 AWG
Min Wire 4 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 Load Side Lugs
Standards CSA C22.2 No. 5, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Non-Interchangeable Trip

Product FAQs

8 answers
What panelboards or enclosures are compatible with the EDS3125?

The EDS3125 is designed for use in Eaton Series C panelboards, switchboards, and motor control centers. It is an F-Frame breaker and mounts via a bolt-on connection.

What wire sizes and materials are accepted by the EDS3125 lugs?

The standard lugs on the EDS3125 accept 4 AWG to 4/0 AWG copper or aluminum (Cu/Al) conductors.

Can I install internal accessories like a shunt trip or auxiliary switch in the EDS3125?

Yes, as an Eaton Series C F-Frame breaker, the EDS3125 accepts standard F-Frame internal accessories. Common additions include shunt trips (such as the SNT1RP08K) and auxiliary switches (like the A1X1PK), which can be mounted in the left or right pole cavities.

What is the difference between the EDS3125, EDB3125, ED3125, and EDH3125?

While all of these are 125A, 3-pole, 240V Eaton Series C F-Frame breakers, they have different interrupting capacities. The EDB3125 is rated at 22kAIC, the EDS3125 is rated at 42kAIC, the ED3125 is rated at 65kAIC, and the EDH3125 is rated at 100kAIC at 240VAC.

Can the EDS3125 be used in reverse feed applications?

Yes, standard Eaton Series C F-Frame thermal-magnetic breakers like the EDS3125 are suitable for reverse feed applications. They can be wired with the line voltage connected to either the top or bottom terminals.

What type of trip unit does the EDS3125 have?

The EDS3125 features a non-interchangeable thermal-magnetic trip unit with fixed long-time (thermal) and fixed instantaneous (magnetic) trip functions.

Is the EDS3125 HACR rated?

Yes, Eaton Series C F-Frame breakers like the EDS3125 carry an HACR (Heating, Air Conditioning, and Refrigeration) rating, making them suitable for protecting HVAC equipment circuits.

Does the EDS3125 include load-side lugs?

Yes, the EDS3125 comes standard with load-side lugs for terminating the branch circuit conductors. The line side typically bolts directly to the panelboard bus.

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