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Siemens 3VL4860-3KN30-0AA0 VL400X UL 3-Pole Circuit Breaker

Siemens 3VL4860-3KN30-0AA0 VL400X UL 3-Pole High Breaking Capacity Circuit Breaker

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ManufacturerSiemens
Part number3VL4860-3KN30-0AA0
Part Number 3VL4860-3KN30-0AA0
Manufacturer Siemens
Series VL400X UL
Poles 3
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UL 489 listed circuit breaker Very high breaking capacity (100kA/480V) 3-pole configuration Thermal-magnetic trip unit (LI) High short-circuit protection rating Non-interchangeable frame

The Siemens 3VL4860-3KN30-0AA0 is a VL400X molded case circuit breaker designed to meet UL 489 standards, identified as UL type LG with catalog number LLX3B600. This 3-pole breaker has a non-interchangeable frame and offers a very high breaking capacity of 100kA at 480V AC and 18kA at 600V AC. It features a TM trip unit with LI functionality, rated for a maximum of 600A (In < 600A). The short-circuit protection (II) is set at 2750A to 5500A, with the overload protection (IR) fixed at 600A. This unit is intended as a spare part for replacement, supplied without connection accessories, auxiliary releases, or alarm switches.

This circuit breaker is suitable for heavy-duty industrial applications in North America that demand UL 489 compliance and a very high interrupting rating, such as in main distribution panels, large motor circuits, and systems with significant fault current potential. The TM trip unit provides robust protection.

Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 3VL4860-3KN30-0AA0. Secure reliable and cost-effective UL 489 listed breakers for your critical industrial applications from our inventory.

Part Number3VL4860-3KN30-0AA0
ManufacturerSiemens
SeriesVL400X UL
Poles3
UL TypeLG (LLX3B600)
Rated Current (In)< 600A
Rated Voltage480V AC / 600V AC
Breaking Capacity100kA @ 480V, 18kA @ 600V
Trip UnitTM, LI
Overload Protection (IR)600A
Short-Circuit Protection (II)2750-5500A
Industrial power distribution
Large motor protection
High fault current systems
UL compliant electrical panels
Machinery protection
Compatible with Siemens VL400X UL system components and enclosures. Designed for use in UL 489 compliant electrical systems requiring high interrupting ratings.
Siemens VL400X 100kA breaker 3VL4860-3KN30-0AA0 MCCB Siemens 600A UL high interrupt breaker LLX3B600
This part is a spare part product intended solely for replacement purposes, ensuring compatibility with existing installations of the Siemens VL400X UL series and similar UL 489 listed molded case circuit breakers requiring high interrupting capacity.
Expert tip
The fixed IR setting of 600A and high II rating are critical for protecting large industrial loads and ensuring system stability during fault conditions.
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What is the short-circuit interrupting capacity of the Siemens 3VL4860-3KN30-0AA0 circuit breaker?
The Siemens 3VL4860-3KN30-0AA0 boasts a very high breaking capacity of 100kA at 480V AC, and 18kA at 600V AC. This rating ensures effective protection in industrial settings with potentially high fault currents.