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Siemens SENTRON 3VL160 - User Manual

Siemens SENTRON 3VL160
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System Manual
SENTRON
Protection devices
3VL IEC molded case circuit breakers
11/2013Edition
Answers for Infrastructure & Cities.

Table of Contents

Questions and Answers

  • C
    Chelsea NelsonAug 9, 2025
    Why does my Siemens SENTRON 3VL160 Protection Device circuit breaker keep tripping due to overload?
    • C
      Clifford CarpenterAug 9, 2025
      If your Siemens Protection Device circuit breaker trips due to overload, it indicates the circuit breaker is working as intended. First, verify if the operating current exceeds the thermal tripping limit. Inspect the terminals for discoloration, as cables may loosen due to vibration or cold flow. High ambient temperatures can also cause tripping; consider derating the In or IR values if temperatures in enclosures are too high. Finally, if none of the above apply, inspect the overcurrent release for discoloration and ensure tightening torque values are correct.
  • T
    thompsonmaryAug 18, 2025
    What to do if Siemens SENTRON 3VL160 circuit breaker trips due to short-circuit?
    • C
      Christopher SchmidtAug 18, 2025
      If the Siemens Protection Device circuit breaker trips because of a short-circuit, it could be due to excessive making current, such as from a motor. Try adjusting the magnetic trip rating to a higher setting until the breaker stops tripping when the motor starts. High current peaks, like those during star-delta starter transitions, can also cause this. In such cases, the short-circuit release "I" must be set to a higher value; however, note that this might reduce motor protection.
  • J
    Janice PattonNov 27, 2025
    Why are the mechanical and electrical functions of my Siemens SENTRON 3VL160 affected?
    • T
      turnerjeremyNov 27, 2025
      If the mechanical and electrical functions of your Siemens Protection Device are affected, high humidity or corrosion could be the cause. The molded case circuit breakers must not be used in environments with high humidity since this can cause dielectric and insulation problems. In such environments, appropriate measures need to be taken, such as placing the circuit breaker in an enclosure. Also, the molded case circuit breakers are not designed to be used in aggressive environments and should be installed in a housing. If the issue relates to internal accessories, determine the type installed by removing the circuit breaker cover and checking the order number. Then, verify their correct function. Ensure the correct voltage is connected to the undervoltage release, and that voltage is not ...

Summary

Functions

Protection functions

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

Internal accessories

Information on complements for accessory compartments and specific accessories.

Application planning

Transformer protection on the primary side

Use in DC systems

Use in IT systems

Use in motor protection

Application for optimal motor protection.

Use in unusual environments

Use in series connection

Installing;mounting

Installation methods

Overview of fixed-mounted, plug-in, and withdrawable versions.

Mounting and safety clearances

Permissible mounting positions and safety clearances.

Locking devices

Devices for padlocks, safety locks, and interlocking.

Connecting

Cables and busbars

Recommended clearances for cable and busbar mounting.

Main connection types for fixed mounting

Methods for connecting main conductors in fixed versions.

Main connection methods for plug-in and withdrawable version

Methods for connecting main conductors in plug-in/withdrawable versions.

Displays and operator controls

Overcurrent trip unit without LCD display

Setting options for overcurrent releases without LCD.

Overcurrent trip unit with LCD display

Features and operation of electronic trip units with LCD.

Parameter assignment; addressing

Setting the parameters

Guide to setting protection parameters on the ETU.

Setting the protection parameters for motor protection (ETU10 M, ETU30 M and LCD-ETU 40 M)

Specific parameter settings for motor protection.

Service and maintenance

Preventive measures

Guidelines for inspection intervals and maintenance.

Troubleshooting

Fault causes and corrective actions.

Technical data

General data - 3 VL molded case circuit breakers

Technical overview

Derating factors

Factors affecting current ratings due to altitude/temperature.

Motor Protection

Characteristic values for motor protection.

Motorized operating mechanisms

RCD modules

Undervoltage release

Shunt release

Ground-fault detection

IP degrees of protection

Dimensional drawings

VL160 X (3 VL1), VL160 (3 VL2), and VL250 (3 VL3), 3- and 4-pole, to 250 A

Dimensional drawings for VL160X, VL160, and VL250 series.

VL400 (3 VL4), 3- and 4-pole, up to 400 A

Dimensional drawings for VL400 series.

VL630 (3 VL5), 3- and 4-pole, up to 630 A

VL800 (3 VL6), 3- and 4-pole, up to 800 A

VL1250 (3 VL7) and VL1600 (3 VL8), 3- and 4-pole, up to 1600 A

Interlocks for VL160 X (3 VL1) to VL800 (3 VL6), 3- and 4-pole, up to 800 A

VL160 X (3 VL1) with RCD block, 3- and 4-pole, up to 160 A

VL160 (3 VL2) and VL250 (3 VL3) with RCD module, 3- and 4-pole, to 250 A

VL400 (3 VL4) with RCD module, 3- and 4-pole, up to 400 A

Door-coupling rotary operating mechanisms 8 UC

Spare parts;accessories

Installation

Siemens SENTRON 3VL160 Specifications

General IconGeneral
BrandSiemens
ModelSENTRON 3VL160
CategoryProtection Device
LanguageEnglish

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