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Siemens 3VL4860-1PB30-0AA0 VL400X UL 3-Pole Circuit Breaker

Siemens 3VL4860-1PB30-0AA0 VL400X UL 3-Pole Molded Case Circuit Breaker

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ManufacturerSiemens

Part number3VL4860-1PB30-0AA0

Part Number 3VL4860-1PB30-0AA0

Manufacturer Siemens

Series VL400X UL

Poles 3

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UL 489 listed circuit breaker 3-pole configuration Standard breaking capacity (35kA/480V) Electronic trip unit (LI) Adjustable protection settings Non-interchangeable frame

Product description

The Siemens 3VL4860-1PB30-0AA0 is a VL400X molded case circuit breaker, specifically designed to meet UL 489 standards for industrial applications. This 3-pole breaker is a non-interchangeable frame type, designated as UL type LG with catalog number NLK3R600. It features a standard breaking capacity of 35kA at 480V and 18kA at 600V. The unit is equipped with an ETU trip unit with LI functionality, rated for 600A, and offers adjustable overload protection (IR) from 200A to 600A. Short-circuit protection (II) is adjustable from 1.25 to 10 times the rated current (IN). It's provided as a spare part for replacement purposes, without connection accessories, auxiliary releases, or alarm switches.

This circuit breaker is well-suited for North American electrical installations requiring UL 489 compliance, such as in control panels, machinery, and power distribution systems where reliable protection at standard interrupting ratings is essential. The adjustable ETU provides flexibility in system protection coordination.

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Technical specifications

Part Number	3VL4860-1PB30-0AA0
Manufacturer	Siemens
Series	VL400X UL
Poles	3
UL Type	LG (NLK3R600)
Rated Current (In)	600A
Rated Voltage	480V AC / 600V AC
Breaking Capacity	35kA @ 480V, 18kA @ 600V
Trip Unit	ETU, LI
Overload Protection (IR)	200-600A
Short-Circuit Protection (II)	1.25-10xIN

Common applications

Industrial control panels

Machinery protection

Power distribution

UL compliant installations

Electrical safety

Compatible systems

Compatible with Siemens VL400X UL system components and enclosures. Designed for use in UL 489 compliant electrical systems.

Also known as

Siemens VL400X UL breaker 3VL4860-1PB30-0AA0 MCCB Siemens 600A UL circuit breaker NLK3R600

Replaces / compatible with

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.

Technical note

Expert tip

Ensure proper torque is applied to the line and load terminals as specified by the manufacturer to maintain reliable connections for this 600A rated breaker.

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Frequently asked questions

What are the UL ratings for the Siemens 3VL4860-1PB30-0AA0 circuit breaker?

The Siemens 3VL4860-1PB30-0AA0 is UL 489 listed, featuring a standard breaking capacity of 35kA at 480V AC and 18kA at 600V AC. This ensures it meets stringent safety and performance standards for North American industrial applications.