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VL 3 Switch / 4 Switch Instructions
Operating Instructions / Operación de Instalación
Hazardous Voltage.
Hazardous Voltage.
Will cause death or serious injury.
Will cause death or serious injury.
Turn off and lock out all power supplying this device before
Turn off and lock out all power supplying this device before
working on this device.
working on this device.
Replace all covers before power supplying this device is
Replace all covers before power supplying this device is
turned on.
turned on.
Use only with Siemens certified Components.
Utilizar únicamente con componentes certificados de Siemens.
A utiliser uniquement avec les composants certifiés Siemens.
NOTE - These instructions do not purport to cover all details or variations in equipment, or to provide for every possible
contingency to be met in connection with installation, operation or maintenance. Should further information be desired or
should particular problems arise, which are not covered sufficiently for the purchaser's purposes, the matter should be
referred to the local Siemens sales office. The contents of this instruction manual shall not become part of or modify any
prior or existing agreement, commitment or relationship. The sales contract contains the entire obligation of Siemens. The
warranty contained in the contract between the parties is the sole warranty of Siemens. Any statements contained herein
do not create new warranties or modify the existing warranty.
Trademarks - Unless otherwise noted, all names identified by ® are registered trademarks of Siemens AG or Siemens
Industry, Inc. The remaining trademarks in this publication may be trademarks whose use by third parties for their own
purposes could violate the rights of the owner.
8 1 3 6 5 1 A 0 0
For Use With Frame DG, FG, JG, LG, MG, NG & PG
Para Usar Con Caja Base DG, FG, JG, LG, MG, NG & PG
Tensión peligrosa.
Tensión peligrosa.
Puede causar la muerte o lesiones graves.
Puede causar la muerte o lesiones graves.
Desenergice totalmente antes de instalar o darle servicio.
Desenergice totalmente antes de instalar o darle servicio.
Reemplace todas las barreras y cubiertas antes de
Reemplace todas las barreras y cubiertas antes de
energizar el interruptor.
energizar el interruptor.
1 / 4
For use with all SIEMENS – 555
Electronic Trip Units
[ Para Usar Con todas las Unidades de
disparo electronicas SIEMENS – 555 ]
Tension dangereuse.
Tension dangereuse.
Danger de mort ou risque de blessures graves.
Danger de mort ou risque de blessures graves.
Couper l'alimentation de l'appareil et barrer avant de
Couper l'alimentation de l'appareil et barrer avant de
travailler.
travailler.
Remplacez touts les couverts avant que
Remplacez touts les couverts avant que
l'approvisionnement de pouvoir soit alimenté.
l'approvisionnement de pouvoir soit alimenté.
I.L. No. 813651A00

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Summary of Contents for Siemens VL 3

  • Page 1 Siemens sales office. The contents of this instruction manual shall not become part of or modify any prior or existing agreement, commitment or relationship. The sales contract contains the entire obligation of Siemens. The warranty contained in the contract between the parties is the sole warranty of Siemens.
  • Page 2 To change settings on a Model 555 Electronic Trip Unit Time-current curves represent the tripping characteristics of a circuit breaker. Often referred to as “trip curves”, they are used for design, selection, and coordination of electrical distribution systems. Time-current curves, similar to the one shown in Figure 1, are used to show how fast a breaker will trip at various currents.
  • Page 3 The 5th digit of the catalog number signifies the trip unit configuration type: e.g., Cat. No. NJG3R400L R = LI T = LSI W = LIG V = LSIG Parameter Setting Knob Description LI & LIG LSI & LSIG Current Setting LI &...
  • Page 4 2 x I Option Option Opción Opción Technical Support: Toll Free: 1-800-241-4453 Internet: www.usa.siemens.com/powerdistribution Subject to change without prior notice © Siemens Industry Inc. 2012 Siemens Industry, Inc. , Norcross, GA 30092 U.S.A. 4 / 4 813651A00...

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Vl 4

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