Siemens SENTRON 3VL400 User Manual

System Manual
SENTRON
Protection devices
3VL IEC molded case circuit breakers
11/2013Edition
Answers for Infrastructure & Cities.

Siemens SENTRON 3VL400 Specifications

General

Brand	Siemens
Model	SENTRON 3VL400
Category	Protection Device
Language	English

Summary

Product description

Overview 3VL

Introduces the SENTRON VL types and their basic characteristics.

Application overview

Configuration

Explains the functional principles and subdivision of circuit breakers.

Mechanical operating mechanisms

Motorized operating mechanisms (optional)

Functions

Protection functions

Details on overcurrent, differential current, and ground-fault protection.

Internal accessories

Describes available internal accessories like releases and switches.

Application planning

Use in motor protection

Details on protecting motors with circuit breakers.

Installing/mounting

Installation methods

Overview of fixed-mounted, plug-in, and withdrawable installation methods.

Mounting and safety clearances

Guidance on permissible mounting positions and safety clearances.

Locking devices

Describes various locking devices for securing circuit breakers.

Connecting

Cables and busbars

Information on connecting circuit breakers with cables and busbars.

Main connection types for fixed mounting

Main connection methods for plug-in and withdrawable version

Displays and operator controls

Overcurrent trip unit without LCD display

Explains setting options for trip units without an LCD display.

Overcurrent trip units with LCD display

Details features and operation of trip units with LCD displays.

Parameter assignment / addressing

Setting the parameters

Explains how to set parameters on the ETU and tripping characteristics.

Setting the protection parameters for motor protection (ETU10M, ETU30M and LCD-ETU 40M)

Details parameter settings for motor protection with specific ETU types.

Service and maintenance

Preventive measures

Outlines necessary preventive measures and inspection intervals.

Troubleshooting

Provides guidance on identifying and resolving common circuit breaker issues.

Technical data

General data - 3VL molded case circuit breakers

Lists key electrical and mechanical data for the circuit breaker series.

Technical overview

Provides an overview of operating data, dimensions, and switching capacities.

Configuration of main connections

Details on main connection types and conductor cross-sections.

Derating factors

Explains derating factors for high altitudes and diverse ambient temperatures.

Motor Protection

Details characteristic values for motor protection with different trip classes.

Motorized operating mechanisms

RCD modules

Technical data for RCD modules used for system protection.

Undervoltage release

Shunt release

Ground-fault detection

Circuit diagrams

The circuit diagram examples below show the most frequent uses of the 3VL molded case circuit breaker

Control with undervoltage release

Circuit diagrams VL1 ... 6, motorized operating mechanism with stored energy mechanism, with or without undervoltage release

Circuit diagrams, undervoltage release and shunt release

Circuit diagrams 3VL plus RCD module

Spare parts/accessories

Installation

Terminal covers/phase barriers