GE SEPA36AT0150 - 150A, 600V, 3-Pole Bolt-On Molded Case Circuit Breaker delivers rugged, dependable protection for demanding 3-phase branch circuits in panelboards and load centers. Built to resist vibration and maintain solid electrical integrity, this bolt-on design ensures a rigid bus connection and long-term reliability in residential, commercial, and light industrial environments.
Why this breaker stands out
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Secure bolt-on mounting: A robust bolt-on chassis provides a tight, vibration-resistant connection to the bus bars, helping prevent loosening and maintaining consistent performance in dynamic settings.
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Thermal-magnetic trip unit: The integrated thermal and magnetic elements deliver fast, predictable protection—overcurrent and short-circuit events are detected and cleared with stable operation across temperature swings.
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3-pole configuration for 3-phase systems: This three-pole breaker protects all three hot conductors in 3-phase installations, aligning with modern commercial and light industrial power distribution.
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Wide compatibility: Specifically designed to pair with GE OEM panelboards and load centers, ensuring a clean, seamless installation and a reliable fit with existing gear.
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High-capacity, versatile protection: Rated for
150A at
600V, it handles substantial branch-circuit protection without sacrificing response speed or precision.
What problems it solves
- Reduces nuisance trips and inconsistent protection by combining a dependable thermal response with a fast magnetic trip for short circuits.
- Mitigates vibration-related loosening in exposed or mechanically demanding installations, thanks to secure bolt-on mounting.
- Simplifies retrofits and panel upgrades by offering a compatible, purpose-built solution for GE-based panelboards and load centers.
Ideal use cases
- New installations in 3-phase commercial or light industrial panels where a solid bolt-on MCCB is preferred for mechanical stability.
- Retrofit or upgrade projects in existing GE panelboards/load centers that require matching form-factor and reliable, trip-set protection.
- Areas with higher vibration or equipment movement where a tightly secured bus connection helps maintain electrical integrity over time.
Technical snapshot
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Manufacturer: GE
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Part Number: SEPA36AT0150
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Type: Thermal-magnetic molded case circuit breaker
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Amperage Rating: 150A
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Voltage Rating: 600V
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Number of Poles: 3
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Mounting Style: Bolt-on
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Application: Branch circuit overcurrent and short-circuit protection
Who benefits
- Electricians and panel builders working with GE-compatible load centers and panelboards.
- Facility managers and maintenance teams responsible for reliable 3-phase power distribution in light commercial or industrial settings.
- Anyone upgrading or maintaining 3-phase electrical infrastructure that demands durable, repeatable protection with a secure mechanical fit.
Practical tips for best results
- Verify the panelboard compatibility with GE OEM hardware before installation to ensure optimal fit and performance.
- During installation, torque the mounting hardware to manufacturer guidelines to maintain the integrity of the bolt-on connection in vibration-prone environments.
- Use as part of a coordinated protection scheme with other GE-sequence devices to maintain cohesive trip characteristics across the distribution system. The GE SEPA36AT0150 represents a purpose-built solution for solid, long-lasting overcurrent and short-circuit protection in 3-phase panelboards and load centers, delivering dependable performance when it matters most.