KISSLING Series 29 Industrial Power Relays

The KISSLING Series 29 relays are one-coil monostable industrial relays. They control one electrical circuit by opening and closing contacts in another circuit. These sealed relays provide high switching properties and optimal holding current requirements which make them suitable for applications in harsh conditions on commercial construction & agriculture vehicles, buses, aircraft, ground support equipment and lift trucks.

KISSLING Industrial Power Relays

Series 29

The series 29 monostable relays feature a single-coil and 6G shock and 4G vibration resistance. Sealed housing conforms to IP67 and IP6K9K standards. They offer low heat generation in the contact area based on low contact voltage drop, a compact design, low holding current, silver alloy contact material and the use of mechanical and high thermal stability insulating compounds. Both the terminals and housing are protected against corrosion. Series 29 includes power relays in nominal voltages of 12 & 24 V and nominal continuous amperages of from 75 Amps to 500 Amps. By equipping the relays with blow-out magnets, contact voltages up to 250 V are possible. The use of blow-out magnets is recommended for contact voltages over 40 V and blow-out magnets are also recommended for inductive load applications to maintain long contact life at all voltages. 

The series 29 industrial relays are available with a wide variety of configuration options including contact configurations (NO; NC; NO/NC) and coil voltages (12 V, 24 V, 36 V, 48 V, 60 V, 72 V and 80 V), as well as four bracket styles to enable solutions for various installation conditions, optional suppression devices to eliminate electromagnetic interference at the coil and optional auxiliary contacts. 

Our relays can be used in power distribution, remote battery disconnect, starter relay, HVAC control, auxiliary power systems, and hydraulic system control. 


Detailed information regarding the various types is available on request. Custom relays can be developed in accordance with your specifications. 


Environmental operating temperature


Number of mechanical cycles the Series 29 relays are tested for


Minimum number of switching cycles under full load

 Product Features  Technical Data Application Areas 
  • One-coil monostable industrial relay
  • IP67/IP6K9K (steam cleaning) sealing technology
  • Efficient coil & magnetic circuit design with best-in-class
  • Switching properties and optimal holding current requirements
  • Optimal price/performance in an industrial relay package
  • Wide variety of configuration options for individual needs
  • Main contact current rated for continuous current and 100% duty cycle
  • Rated for a minimum of 100,000 switching cycles under full load
  • Mechanical life tested for 2 million mechanical cycles
  • 30G shock & 10G vibration resistant; MIL-STD 202 conform
  • Rated for -40°C to 85°C (-40⁰F to +185 ⁰F) environmental operating temperature
  • Power distribution
  • Remote battery disconnect
  • Starter relay
  • HVAC control
  • Auxiliary power systems
  • Hydraulic system control