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Siemens 3VL5763-2SE36-0AC1 VL630N 3-Pole DC Line Protection Breaker

Siemens 3VL5763-2SE36-0AC1 VL630N 3-pole DC line protection breaker with ETU20.

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ManufacturerSiemens

Part number3VL5763-2SE36-0AC1

Type VL630N

Poles 3

Breaking Capacity (Icu) 55kA @ 415V DC

Rated Current (In) 630A

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Designed for DC line protection ETU20 electronic trip unit LSI protection Adjustable overload and short-circuit settings 3-pole configuration

Product description

The Siemens 3VL5763-2SE36-0AC1 is a VL630N series 3-pole air circuit breaker designed for DC line protection. It features a breaking capacity of 55kA at 415V DC and is equipped with an ETU20 electronic trip unit for line protection. The unit offers LSI (Overload, Short-circuit Instantaneous) protection with an adjustable overload current (IR) from 252A to 630A and a short-circuit instantaneous setting (II) of 10xIN. This breaker is intended for replacement purposes.

This circuit breaker is suitable for protecting DC lines against overcurrents and short circuits in demanding industrial applications. The ETU20 provides adjustable settings for tailored protection, crucial for maintaining system integrity in DC power distribution and control.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens 3VL5763-2SE36-0AC1. Source this specialized DC protection component from us to ensure reliable operation and safety for your critical DC electrical infrastructure.

Technical specifications

Type	VL630N
Poles	3
Breaking Capacity (Icu)	55kA @ 415V DC
Rated Current (In)	630A
Trip Unit	ETU20, LSI
Overload Setting (IR)	252...630A
Short Circuit (II)	10xIN
Application	DC Line Protection, Spare Part

Common applications

DC power distribution

Industrial DC feeders

DC motor protection

Control panels

Specialized DC systems

Compatible systems

Existing Siemens VL630N 3-pole DC installations requiring ETU20 line protection replacement

Also known as

Siemens 3-pole DC line protection 3VL5763-2SE36-0AC1 replacement Siemens VL630N DC ETU20

Replaces / compatible with

This part serves as a replacement for Siemens VL630N 3-pole circuit breakers used in DC line protection with ETU20 trip units. Verify compatibility with your existing system.

Technical note

Expert tip

This replacement part lacks auxiliary and alarm switches. Ensure proper adjustment of the ETU20 for overload, short-time, and instantaneous DC fault protection to match your specific application requirements.

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Frequently asked questions

What are the LSI settings on the ETU20 trip unit for the Siemens 3VL5763-2SE36-0AC1?

The ETU20 trip unit on the Siemens 3VL5763-2SE36-0AC1 provides LSI protection: Long-time delay for overload protection (adjustable 252-630A), Short-time delay for inrush currents, and Instantaneous trip for high fault currents (set at 10xIN).