HED43B125 - 125Amp Circuit Breaker
- 125 Amp
- 42k @ 480VAC; 100k @ 240VAC
- 3 Pole
Purchase Options: New In Box
HED43B125 - 125Amp Circuit Breaker Description
HED43B125 - 125Amp Circuit Breaker
The Siemens HED43B125 is a 125 Amp, 3-pole molded case circuit breaker built for low-voltage electrical distribution systems that require dependable circuit protection. Part of Siemens' SENTRON ED-frame family, it uses a thermal-magnetic trip unit to help protect your equipment from overloads and short circuits while maintaining the electrical ratings required for compatible installations. With a 42kA interrupting rating at 480 VAC, this breaker is commonly found in commercial and industrial power distribution equipment where maintaining the original specifications is important.
Key Features and Benefits
- 125 Amp current rating
- Three-pole molded case circuit breaker
- Siemens SENTRON ED-frame design
- Thermal-magnetic trip unit helps protect against overloads and short circuits
- Rated for 480 VAC systems
- Factory-installed load-side lugs (TA1E6125)
- Accepts copper and aluminum conductors
- Standard 40°C calibration
- UL 489 Listed and IEC 60947-2 compliant
Technical Specifications
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Manufacturer: Siemens
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Catalog Number: HED43B125
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Product Type: Molded Case Circuit Breaker
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Product Family: SENTRON HED4 (ED Frame)
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Current Rating: 125 Amps
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Poles: 3
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Voltage Rating: 480 VAC
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Interrupting Rating: 42kAIC @ 480 VAC
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Trip Unit: Thermal-Magnetic
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Frame: ED
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Calibration: 40°C
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Terminal Type: Load Lugs (TA1E6125)
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Copper Wire Range: 3 AWG to 3/0 AWG
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Aluminum Wire Range: 1 AWG to 2/0 AWG
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Dimensions: 3.00" W × 6.35" H × 3.92" D
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Weight: 0.34 lb.
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Country of Origin: Mexico
Material Compliance and Certifications
- UL 489 Listed
- IEC 60947-2 Compliant
- RoHS Compliant
- REACH Article 33 Information Available
- Export Classification: EAR99
Where It Works Best
The Siemens HED43B125 is used in commercial, industrial, and institutional electrical systems that require a 125 Amp, 3-pole, 480V molded case circuit breaker with a 42kA interrupting rating. It is designed for use in compatible Siemens panelboards, switchboards, and other distribution equipment where matching the original electrical ratings and ED-frame dimensions is essential.
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Specifications
- Width:3.0
- Height:6.35
- Depth:3.92
- Poles:3
- Amperes:125
- A.I.C. Rating & Volts:42k @ 480VAC; 100k @ 240VAC
- Type:HED4
- Approx Dimensions:3.00"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.
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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).