PIT-RADWAR S.A. Oddział Wrocław
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Home » Reed relays: HV type B » HV type A
High voltage reed relays form A contact (normally open)
Wroclaw Division of PIT-RADWAR S.A. has produced:
High voltage reed relays form A contact (normally open)

K-55xH
High voltage reed relays are assigned to switch and separation high voltage circuits from 5kV to 19kV.
There are produced 3 type of relays:
  • type K-55xH and K56S - leads of reed switches are performed by elastic HV cables, leads of coil are adapted to PCB mounting,
  • type K-56xH and type R56x - all leads of relay are adapted to PCB mounting.
Basic parameters of relays type K-55xH, K-56xH , R-56x and K56S see below. Additional information are attainable in section Documentation » Data sheets.
Technical parameter specification of high voltage reed relays type K-55xH, K-56xH, R-56x, K56S
Technical data Unit Type of reed relay
K-551H
K-561H
R-561
K-552H
K-562H
R-562
K-553H K-554H K-555H K-556S
Contact form   normally open (type A)
Switching power max W 50 10
Breakdown voltage min kVDC 7 10 14 17 18 19
Switching voltage max kV 5 7.5 10 12
Switching current max A 2 1
Contact resistance max 150
Coil normal working voltage   VDC 5/6/12/24 24
Pull-in voltage max VDC 4/4.5/9/18 18
Drop-out voltage min VDC 0.5/0.6/1/2 2
Nominal coil resistance   Ω 45/45/180/650 400
Operate time including bounces max ms 3.6
Release time max ms 0.5
Breakdown voltage coil-contact min kVDC 15 30
Dimensions and terminal arrangements
K-55xH , K56S
K-55x - dimension
all dimension in mm
K-56xH
K-56x - dimension
all dimension in mm
R-56x
R-56x - dimension
all dimension in mm
see data sheets: go to:  
PDF  HV reed relays   HV reed relays type B
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PIT-RADWAR S.A.
ul. Poligonowa 30, 04-051 Warszawa

Wroclaw Division: ul. Krakowska 64; 50-425 Wroclaw
tel. (+48) 71 342-50-41; fax (+48) 71 342-58-59; e-mail: sales@dolam.pl