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Digital Voltmeters, Ammeters & Current transformers

Digital voltmeters

SM501
For indications of line or phase voltages

– Three phase :
use of a voltmeter selector switch SK 602

Digital ammeters

  • SM 020, SM 151, SM 401,
  • SM 601
  • SM 020 : direct reading
  • SM 401, SM 601 : reading via a current transformer (see below)

Comply with IEC 60054-1

  Designation Characteristics Width in ❚ 17.5 mm Pack Qty. Cat. Ref.
SM501 Digital voltmeters Voltage rating : 4 1 SM501
220/230V; 50/60Hz
accuracy : ±1%
consumption : 4VA
scale : 0 – 500V
Digital ammeters Voltage rating :
220/230V; 50/60Hz
SM501 accuracy : ±1%
consumption : 4VA
SM020 – Direct Scale : 0-20A 4 1 SM020
– Reading via CT150/5A Scale : 0-150A 4 1 SM151
  (SR 151)
– Reading via CT 400/5A Scale : 0-400A 4 1 SM401
  (SR 400)
SM020 – Reading via CT 600/5A Scale : 0-600A 4 1 SM601
  (SR 600)

 

Current Transformers (C.T.)

Description :

  • Current transformers are used to feed analogue and digital ammeters. As well as kWh meters.
  • Their current on secondary circuit (0-5A) is proportional to the current on primary circuit class : 1
  • can be mounted on copper bar or on cable. can be mounted on DIN rail with adaptors
  Designation Characteristics Pack Qty. Cat. Ref.
SR300 Current transformers (CT) Ratio :
50/5 1 SR051
100/5 1 SR101
150/5 1 SR151
200/5 1 SR200
SR300 250/5 1 SR250
300/5 1 SR300
400/5 1 SR400
600/5 1 SR600