• One-stop offering: Wide choice from a complete range with several designs for a variety of applications
• Save time for installation and maintenance by pin bases snapping on top hat rails
• For medium or low switching frequency many times more cost-effective alternative compared to semiconductors Insensitive to overcurrent/overvoltage
• Latching relays: Energy-saving solution for applications with desired latching properties, the stored condition is kept even after removal of the control pulse or voltage drops

Inadvertent pulses on the input side of a control may cause false triggering or, if containing a larger amount of energy, serious damages to an electronic control system. On their output side, electronic control systems must be protected against short-circuits and reactions by inductive loads. DOLD coupling modules, both input (imod) and also output (omod) modules, meet following criteria and thus they are suited for all interface applications in demanding control systems:

• Safe electrical isolation between control and load circuits acc. to VDE 0106 Part 101 (e.g. between CPU and sensors or actuators)
• Highly effective interference suppression
• Signal conditioning

Coupling relays with semiconductor output (IK 3070.91; .95)

• For higher switching frequencies
• For bounce-free switching
• Optionally with transistor or triac output
• Long service life
• Low trigger power

DOLD latched/interface and switching relays are suited for all interface applications in demanding control systems.

Latching relays: e.g. in the control circuit of high voltage switchgear of electricity supply companies

Interface/switching relays: e.g. in materials handling, hoists, injection moulding machines, wood working machines

Notching relays: e.g. alternating pump controls

• 
  Latching, interface and switching relays