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XT5LQ340ABFF000XXX
XT5LQ340ABFF000XXX
ABB - Molded Case

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IMAGES ARE FOR REFERENCE ONLY.
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XT5LQ340ABFF000XXX Specifications
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XT5LQ340ABFF000XXX, ABB, SACE Tmax XT, type XT5L, UL 100% rated, 3PH, 3P, 600V, 400A, 100kA@480V, Bolt-On, front terminals, complete with TMA, LI - Long-Time and Instantaneous trip functions, Thermal magnetic adjustable (TMD/TMA), molded case circuit breakers; 1SDA102685R1 + 1SDA102704R1 + 1SDA112973R1 global reference
| Part Number | XT5LQ340ABFF000XXX | Family | SACE Tmax XT |
| Manufacturer | ABB | Type | XT5L |
| Subcategory | Molded Case | Voltage | 600 |
| Part Number | XT5LQ340ABFF000XXX | ||
| Family | SACE Tmax XT | ||
| Manufacturer | ABB | ||
| Type | XT5L | ||
| Subcategory | Molded Case | ||
| Voltage | 600 |
Electrical.com is NOT an authorized distributor for Square D and therefore the manufacturer’s warranty does not apply. This product does include an Electrical.com 2 year warranty.



We can test, inspect and repair your XT5LQ340ABFF000XXX. All repairs include a 2-Year Electrical.com Warranty.

The XT5 is the high_capacity frame size in ABB's SACE Tmax XT molded_case circuit-breaker (MCCB) family. It covers 400A to 600A continuous current ratings, with 3-pole and 4-pole versions available. The XT5 breakers are rated for up to 600V AC (50-60_Hz) - and similarly rated for DC - making them suitable for a broad range of industrial and commercial low-voltage power distribution applications. XT5 breakers deliver very high interrupting capacity. Some models are rated up to 200kA at 480V, or 100kA at 600V, ensuring reliable performance in high fault-current environments. They support multiple trip-unit options including thermal_magnetic and electronic trip units (basic and advanced), as well as molded case switch (MCS) and motor circuit protector (MCP) variants - enabling customization based on load type, coordination needs, or protective requirements. This flexibility allows XT5 breakers to serve as main, feeder, or motor protection devices within the same product line.
The XT5LQ340ABFF000XXX is a 400A breaker with 3 poles and a 100kA@480V interrupting capacity. Purchase the XT5LQ340ABFF000XXX molded case circuit breaker at Electrical.com, your trusted source for power distribution and automation solutions. Our selection includes trusted breakers from manufacturers like ABB and General Electric, backed by a dedicated sales team ready to assist with technical questions, product selection, and support.