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EHD3100L - 100Amp Circuit Breaker

  • 100 Amp
  • 14k @ 480VAC; 18k @ 240VAC
  • 3 Pole
Circuit BreakersSKU: EHD3100L

Purchase Options: New In Box

EHD3100L - 100Amp Circuit Breaker Description

EHD3100L - 100 Amp Circuit Breaker

If you’re looking for a circuit breaker that does its job—day in, day out—without surprises, the Eaton EHD3100L is exactly the kind of workhorse you want in your electrical system. Built for consistency and protection, this 100-amp, 3-pole molded-case circuit breaker is designed to meet the real-world demands of commercial and industrial environments. Whether you’re managing a facility, upgrading equipment, or replacing an existing breaker, this unit delivers the confidence you need to keep operations running smoothly.

What makes the EHD3100L stand out is its balance of performance and practicality. It’s part of Eaton’s well-known Series C lineup, meaning you’re getting a breaker engineered with proven technology and dependable trip performance. The T186 trip unit reacts quickly to overloads and short circuits, helping protect your equipment before problems escalate. And with strong interrupting ratings, this breaker is built to handle fault conditions without hesitation—so you’re not left dealing with unnecessary downtime or costly damage.

Key Features and Benefits

  • Dependable 100 Amp Protection – Keeps your electrical system protected from overloads and short circuits
  • Three-Pole Configuration – Ideal for three-phase power distribution in commercial and industrial setups
  • High Interrupting Capacity – Handles fault currents up to 18 kAIC at 240 VAC and 14 kAIC at 480 VAC
  • T186 Trip Unit – Designed for accurate, consistent tripping when it matters most
  • Compact Design – Saves space inside panels without sacrificing performance
  • Easy Connection Points – Line and load terminals support secure and straightforward installation
  • Trusted Eaton Series C Engineering – A reliable choice used across countless electrical systems

Technical Specifications

  • Catalog Number: EHD3100L
  • Manufacturer: Eaton
  • Product Type: Molded Case Circuit Breaker
  • Series: Series C
  • Frame Type: F Frame (Complete Breaker)
  • Amperage Rating: 100 Amps
  • Poles: 3
  • Trip Type: T186
  • Voltage Rating: Up to 480 VAC
  • Interrupt Rating:
    • 18 kAIC @ 240 VAC
    • 14 kAIC @ 480 VAC
  • Frequency: 50/60 Hz
  • Terminals: Line and Load
  • Dimensions: 6 in (H) x 4.13 in (W) x 3.38 in (D)
  • Weight: 4.5 lbs

Material Compliance and Certifications

  • UL Listed – Tested and certified to meet strict U.S. safety and performance standards
  • Manufactured in compliance with industry requirements for reliable electrical protection

Where It Works Best

  • Commercial buildings and office power distribution
  • Industrial facilities and manufacturing environments
  • Equipment protection in control panels and machinery
  • Retrofit and replacement projects requiring a 100A, 3-pole breaker
  • OEM applications where consistent performance is critical

 

Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.

Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.

Specifications

  • Width:4.13
  • Height:6.0
  • Depth:3.38
  • Poles:3
  • Amperes:100
  • A.I.C. Rating & Volts:14k @ 480VAC; 18k @ 240VAC
  • Type:EHD
  • Approx Dimensions:4.13"W x 6.00"H x 3.38"D
  • Additional Notes:Thermal-magnetic circuit breaker with non-interchangeable trip unit. 40°C rated. This item includes line and load terminals.

Returns are easy

You may return unused items within 30 days of delivery for a full refund.

FREE shipping on breaker orders over $100 and all other items with orders over $500.

CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

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In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

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