General

• All versions with screw or spring-type terminals (push-in technology)
• TOP wiring with spring-type terminals (push-in) for fast and secure wiring
• Low space requirements in the control cabinet thanks to a consistent width of 6.2 mm
• Reduced inventory due to low variance
• Clearly visible functional state of the coupling relay by green LED
• Integrated reverse polarity protection and EMC arc-suppression diode
• Uniform accessories throughout the entire 3RQ3 series
• Integrated jumper option using connecting comb for all terminals
• Galvanic isolation plate for isolating different voltages for neighboring units
• Clip-on labels available as plotter matte paper for individual printing

Coupling relays with relay output (not plug-in)

• Relays fixed in enclosure for increased contact reliability
• Device variants with hard gold-plated contacts providing high contact reliability at low currents

Coupling relays with plug-in relay

• Fast replacement of the relays with existing wiring
• Shorter installation times thanks to certified complete units
• Individual relays available as spare parts
• Device variants with hard gold-plated contacts providing high contact reliability at low currents

Coupling relays with semiconductor output (not plug-in)

• Long service life as there is no mechanical wear
• High switching frequency thanks to short make and break times
• Insensitive to vibrations
• No contact bounce
• Maximum contact reliability
• Noise-free switching
• Low control power required
• Switching of DC and capacitive loads