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Siemens 3VL4740-2DC36-0AA0 VL400N 3-Pole Circuit Breaker

Siemens 3VL4740-2DC36-0AA0 VL400N 3-Pole Molded Case Circuit Breaker

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ManufacturerSiemens

Part number3VL4740-2DC36-0AA0

Part Number 3VL4740-2DC36-0AA0

Manufacturer Siemens

Series VL400N

Poles 3

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Very high breaking capacity (70kA) 3-pole configuration Electronic trip unit (ETU) with LI Adjustable overload and short-circuit settings Designed for replacement

Product description

The Siemens 3VL4740-2DC36-0AA0 is a VL400N molded case circuit breaker, designed as a 3-pole unit for line protection. It boasts a very high breaking capacity (Icu) of 70kA at 415V AC. This breaker utilizes an electronic trip unit (ETU) with LI functionality, allowing for adjustable overload protection (IR) from 160A to 400A and short-circuit protection (II) with a delay (500A to 4000A) and instantaneous settings (1.25 to 10 x IN). It is rated for 400A and is intended as a spare part for replacement purposes, without auxiliary releases or switches.

This circuit breaker is suitable for applications requiring high breaking capacity and precise protection settings, such as in power distribution boards, motor control centers, and industrial automation systems. Its electronic trip unit offers flexibility in configuring protection parameters to match specific equipment needs.

Stanlo Automation, a veteran-owned surplus distributor, provides the Siemens 3VL4740-2DC36-0AA0 to meet your operational demands. We offer reliable surplus components to keep your systems running efficiently.

Technical specifications

Part Number	3VL4740-2DC36-0AA0
Manufacturer	Siemens
Series	VL400N
Poles	3
Rated Current (In)	400A
Rated Voltage	415V AC
Breaking Capacity (Icu)	70kA
Trip Unit	ETU, LI
Overload Protection (IR)	160-400A
Short-Circuit Protection (II)	500-4000A (delayed), 1.25-10xIN (instantaneous)

Common applications

Power distribution

Industrial automation

Motor control

Control panels

Load centers

Compatible systems

Compatible with Siemens VL400N system components and enclosures.

Also known as

Siemens VL400N 3-pole breaker 3VL4740-2DC36-0AA0 MCCB Siemens 400A 70kA breaker

Replaces / compatible with

This part is a spare part product intended solely for replacement purposes, ensuring compatibility with existing installations of the Siemens VL400N series.

Technical note

Expert tip

The ETU offers flexible settings; verify that the IR and II settings are correctly configured to protect the downstream circuit and connected equipment.

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Frequently asked questions

What is the breaking capacity of the Siemens 3VL4740-2DC36-0AA0 circuit breaker?

The Siemens 3VL4740-2DC36-0AA0 features a very high breaking capacity (Icu) of 70kA at 415V AC. This ensures robust protection against short-circuit events in demanding industrial environments.