Hengstler Mains Isolation Relay Type RY


Hengstler Mains Isolation Relay Type RY
Mains Isolation Relay Type RY[/caption]

To ensure that our relays as used in your applications carry on doing their job reliably for years, the quality of products bearing the HENGSTLER name is the highest priority. All our locations are certified to ISO 9001 and ISO 14001, and the entire product range is, as you would expect, in conformity with RoHS and REACH regulations.

Isolating high switching loads is a tough challenge that has been around as long as there have been relays. If, on top of that, there are normative requirements for creepage and clearance distances, only a manufacturer with many years' experience in the development and manufacturing of relays can help. This experience is incorporated in HENGSTLER mains isolation relays, to ensure electrical safety for people and machines.

The HENGSTLER RY mains isolation relay is predominantly used in appliances for which two-pole disconnection is prescribed. The two contacts in this relay open by a defined amount of > 3 mm. The creepage and clearance distances between the contacts and the drive system are > 8 mm. The RY mains isolation relay can be supplied with either a DC or an AC monostable drive system.


  • 2 NOC or 1 NOC+1 NCC
  • 16 A switching & permanent current
  • Drive available as monostable DC or AC
  • Load disconnecting relay with 3 mm contact gap
  • Ambient temperature -25 to +55 °C
  • cULus approval (version with 2 NOC)
  • Solder legs or 6.3 mm flat plug connections
  • Attachment to 35 mm DIN rail possible


Function / ApplicationMains isolation relay
Product lineKACO
Relay familyRY
Ambient temperature [°C]-25 ... +55 °C
Soldering heat resistance [°C]260 °C
Max. soldering time [s]5 s
Pins pre-soldered withSn 100
ApprovalcULus (only Version with 2 NO)
StandardsIEC 61810-1
 UL 508
Meets the requirementsRoHS
Number of NO contacts0 ... 2
Number of NC contacts0 ... 2
Number of CO contacts0
Dimensions L x W x H [mm]50,2 x 31,2 x 28,7 mm
Housingdustproof (RT II)
Shock resistance [g]5 g
Puls duration (half sinus)11 ms
Vibration resistance [g]5 g
Frequency range [Hz]10 - 55 Hz
Operating time [ms]15 ms
Releasing time [ms]3 ms
Mechanical service life (without load)10,000,000 switching cycles
Connection typeSolder pins for pcb
 6.3 mm plug connectors
Fixing typeScrew flap
 DIN rail mounting
Weight [g]55 g

Download Data Sheet: Mains Isolation Relay Type RY

Ref: hengstler.de

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