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circuit-breaker

Eaton CHB340 - 40 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Part Number CHB340
Amperes 40
Poles 3
Voltage 240
Product Type circuit-breaker
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Manufacturer :Eaton
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $710.00
Sale price $710.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
Icon
FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Eaton CHB340 - 40 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Eaton CHB340 - 40 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
Product description
Shipping

The Eaton CHB340 is a purpose-built 40A, 240V, 3-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit protection in panelboards and load centers. Its secure bolt-on mounting creates a rigid, vibration-resistant bus connection, while the thermal-magnetic trip unit provides stable, repeatable protection against both overloads and short circuits.

  • Secure bolt-on mounting: ensures a solid, vibration-resistant connection to the bus for dependable long-term operation in busy panels.
  • Thermal-magnetic trip unit: offers precise protection that responds to sustained overloads and instantaneous short circuits, helping prevent damage to wiring and equipment.
  • 3-pole design: ideal for three-phase systems or multi-wire configurations in a single device.
  • 240V rating: compatible with common panelboards and distribution setups used in residential, commercial, and light industrial applications.
  • 40A amperage rating: well-suited for protecting branch circuits that drive motors, HVAC, lighting, and power loads within its rating.
  • OEM compatibility: engineered to work seamlessly with matching Eaton OEM loadcenters and panelboards for plug-and-play installation.
  • Versatile application: a reliable choice for panels in homes, offices, small facilities, and light industrial environments where sound circuit protection is essential.

Use cases include upgrading or replacing worn breakers in panelboards, adding a new subpanel where a robust three‑pole protection device is required, or upgrading electrical distribution in spaces that demand solid, repeatable protection against overcurrent and short circuits. The CHB340’s bolt-on design minimizes movement and wear over time, reducing maintenance concerns in panels that experience regular operation and vibration.

Technical specifications

  • Manufacturer: Eaton
  • Part Number: CHB340
  • Type: Thermal-magnetic molded case circuit breaker
  • Amperage Rating: 40A
  • Voltage Rating: 240V
  • Number of Poles: 3
  • Mounting Style: Bolt-on
  • Application: Branch circuit overcurrent and short-circuit protection

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4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

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Exactly what we needed for a shutdown replacement. No surprises.

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