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HED42B045 - 45Amp Circuit Breaker

  • 45 Amp
  • 42k @ 480VAC; 100k @ 240VAC
  • 2 Pole
Circuit BreakersSKU: HED42B045

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HED42B045 - 45Amp Circuit Breaker Description

HED42B045 - 45Amp Circuit Breaker

The Siemens HED42B045 is a 45 Amp, two-pole molded case circuit breaker designed for compatible Siemens SENTRON ED frame electrical distribution systems. Built for your applications where maintaining the correct breaker specifications is important, this circuit breaker provides a matching solution for replacement and maintenance needs. Its thermal magnetic trip unit combines overload and short-circuit protection in a single breaker design, helping support the intended operation of compatible electrical equipment.

Key Features and Benefits

  • 45 Amp two-pole Siemens ED frame circuit breaker
  • Thermal magnetic trip unit for overload and short-circuit protection
  • 480V voltage rating
  • Load-side lug connections
  • Supports #10–1/0 AWG copper conductors
  • Supports #10–1/0 AWG aluminum conductors
  • Siemens SENTRON molded case circuit breaker design
  • Meets UL 489 and IEC 60947-2 standards

Technical Specifications

  • Catalog Number: HED42B045
  • Product Type: Molded case circuit breaker
  • Frame Type: ED Frame
  • Amperage Rating: 45 Amps
  • Voltage Rating: 480V
  • Poles: 2
  • Trip Unit Type: Thermal magnetic
  • Interrupt Rating: 42kAIC at 480V
  • Terminal Configuration: Load lugs only
  • Wire Range: 10–1/0 AWG CU/AL
  • Dimensions: 2 in W x 6.35 in H x 3.92 in D
  • Weight: 2.8 lb
  • UPC: 783643210004
  • Country of Origin: Mexico

Material Compliance and Certifications

The Siemens HED42B045 is designed to meet applicable UL 489 and IEC 60947-2 standards for molded case circuit breakers.

Before installation, verify that the breaker ratings, frame type, voltage requirements, pole configuration, and conductor specifications match the existing application.

Where It Works Best

  • Siemens ED frame electrical distribution equipment
  • 480V two-pole circuit protection applications
  • Commercial and industrial electrical systems
  • Maintenance and replacement projects involving compatible equipment

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.

Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.

Specifications

  • Width:2.0
  • Height:6.35
  • Depth:3.92
  • Poles:2
  • Amperes:45
  • A.I.C. Rating & Volts:42k @ 480VAC; 100k @ 240VAC
  • Type:HED4
  • Approx Dimensions:2.00"W x 6.35"L x 3.92"D
  • Additional Notes:40°C, HACR rated, Sentron Style Molded Case Circuit Breaker. Bolt-On. Includes load-side terminals. Suitable for reverse feed. - discontinued by the Manufacturer

Returns are easy

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

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

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If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.

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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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