Eaton CH340 - 40 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

Introducing the Eaton CH340 — a 40A, 240V, 3-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit protection for panelboards and load centers. Built by Eaton and specified for reliable performance, this unit is ideal for residential, commercial, and light industrial electrical environments where uptime matters and protection is non-negotiable.

Why the CH340 stands out

• Fast plug-in connection: Speeds up installation and simplifies replacements, reducing labor time on service upgrades and panel maintenance.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection across varying temperatures and load conditions, helping to minimize nuisance trips while safeguarding circuits.
• 3-pole design for 3-phase safety: Ensures coordinated protection for three-phase systems, keeping equipment balanced and protected.
• OEM-compatible: Seamless integration with matching OEM load centers and panelboards to maintain electrical integrity and reduce adaptation work.
• Robust, molded case construction: Built to withstand the demands of busy electrical rooms, commercial spaces, and service floors where reliability is critical.

What this breaker protects and where it shines

The CH340 is purpose-built for branch circuit overcurrent and short-circuit protection. With a 40A current rating and 240V operating envelope, it’s an excellent choice for protecting circuits that feed motors, HVAC equipment, lighting banks, and other moderate-load distributions in both new installations and panel upgrades. Its plug-in form factor keeps changes straightforward, minimizing downtime during maintenance or expansion projects.

Ideal applications

• Residential panels upgrading or expanding circuits that require reliable 3-pole protection
• Commercial offices and retail spaces with 3-phase distribution needs
• Light industrial facilities that run motors, compressors, or heavy lighting loads
• Panelboard and loadcenter replacements where OEM compatibility is essential

Technical snapshot

• Manufacturer: Eaton
• Part Number: CH340
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Voltage Rating: 240V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Installation mindset and practical tips

To get the most from the CH340, pair it with a matching Eaton OEM load center or panelboard to guarantee compatibility and optimal performance. Its plug-in design is especially advantageous during panel upgrades or service calls where quick replacement minimizes downtime. When planning installations, verify the panel’s acceptable breaker types and ensure the three-pole format aligns with your 3-phase service requirements. Regularly inspect terminals and keep the surrounding panel area clean to preserve the trusted performance Eaton is known for.

Who should consider the Eaton CH340

• Electrical contractors and facilities managers seeking reliable protection for 3-phase branch circuits
• Property owners performing panel upgrades or expansions in commercial or light industrial settings
• Licensed electricians responsible for maintaining and replacing molded case circuit breakers in residential load centers

Choose the Eaton CH340 for a solid blend of quick installability, precise thermal-magnetic protection, and OEM-compatible integration. It’s a practical, durable solution for safeguarding your electrical distribution—today and for years to come.