{"product_id":"general-electrics-tkma836400-400a-3-pole-bolt-on-circuit-breaker","title":"General Electrics TKMA836400 - 400 A, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003eGeneral Electrics TKMA836400 delivers dependable 400 amp, 3-pole protection in a bolt-on molded case design, built to shield panelboards and loadcenters from overcurrent and short-circuit events. Sold through AmpState, this GE component is purpose-built for heavy-duty electrical systems that demand robust, long-lasting performance in residential, commercial, and light industrial settings. What makes the TKMA836400 stand out\n- Secure bolt-on mounting for a rigid, vibration-resistant bus connection. In environments with moving equipment or channelized loads, this mounting approach helps maintain steady electrical contact and reduces the risk of loosening over time.\n- Thermal-magnetic trip unit for stable, repeatable protection. The integrated thermal (overload) and magnetic (short-circuit) sensing delivers fast, reliable interruption when circuits exceed limits, while minimizing nuisance trips on normal inrush or gradual load changes.\n- OEM-compatible for streamlined replacement. Designed to work with matching GE OEM loadcenters and panelboards, ensuring a cohesive, dependable protection scheme in existing installations.\n- Versatile for a range of applications. The 3-pole configuration is ideal for 3-phase systems common in commercial and light industrial environments, while still suitable for larger residential installations that require balanced, three-phase protection. Technical snapshot\n- Manufacturer: General Electrics\n- Part Number: TKMA836400\n- Type: Thermal-magnetic molded case circuit breaker\n- Amperage Rating: 400A\n- Number of Poles: 3\n- Mounting Style: Bolt-on\n- Application: Branch circuit overcurrent and short-circuit protection Ideal use scenarios\n- Commercial panelboards and industrial loadcenters where reliable 3-phase protection is essential for equipment like motors, conveyors, and HVAC systems.\n- Main service distribution where a sturdy, bolt-on breaker ensures a solid, vibration-resistant connection to bus bars in demanding environments.\n- Retrofit or replacement projects in GE OEM panels, offering a direct, compatible upgrade path that maintains system integrity and protective coordination. Why this matters for your project\n- A 400A, 3-pole protection device is purposefully chosen when you need to safeguard multiple downstream breakers and feeders from simultaneous fault conditions, helping prevent cascading failures and equipment damage.\n- The bolt-on design reduces mounting strain and bus-bar movement, translating to more predictable performance in panels subject to vibration or mechanical activity.\n- The thermal-magnetic trip mechanism provides clear, dependable protection characteristics that align with standard electrical safety practices, helping facilities meet code requirements and maintain uptime. Practical guidance and considerations\n- Confirm panel compatibility with GE OEM panels to ensure seamless integration and coordination with existing protection devices.\n- Use proper installation procedures consistent with panelboard guidelines to maximize the long-term reliability of the bolt-on connection.\n- Consider the protection strategy for downstream loads (motor starters, feeders, and distribution circuits) to optimize selectivity and minimize unnecessary outages in fault conditions. With the General Electrics TKMA836400, you’re equipping a critical point in your electrical system with a rugged, precise, and durable solution. It’s the reliable choice for professionals who demand consistent performance, clear fault-clearing behavior, and straightforward integration within GE-based panel ecosystems.\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349736083618,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/general-electrics-tkma836400-400-a-3-pole-bolt-on-circuit-breaker-870.webp?v=1788718627","url":"https:\/\/www.ampstate.com\/products\/general-electrics-tkma836400-400a-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}