METZ CONNECT KRA-M4/1 Interface Relay Module, 1 Changeover Contact, 24 V AC Coil, White 11061313

In control cabinets and automation systems, a reliable interface relay is essential for switching loads with a low-level control signal. The METZ CONNECT KRA-M4/1 is an interface relay module designed for DIN rail mounting, providing a single changeover contact (SPDT) to switch AC loads up to 250 V. Its 24 V AC coil allows direct control from common building automation or industrial controllers.

Who is it for

This relay module is intended for electricians, panel builders, and system integrators who need a compact, DIN-rail mountable relay to interface between control circuits and power circuits. It is suitable for HVAC, lighting control, and general automation tasks where a 24 V AC control signal must switch a higher voltage load.

Main features

• 1 changeover contact (SPDT) for flexible switching
• 24 V AC coil voltage
• Maximum switching voltage: 250 V AC
• Maximum switching current: 6 A
• Compact design: width 11.2 mm, depth 60 mm, height 87.5 mm
• Light weight: 45 g
• DIN rail mounting for quick installation
• Operating temperature range: -20 °C to 55 °C
• Screw terminals for secure wiring
• White housing

Specifications

• Product type: Interface relay module
• Coil voltage (AC): 24 V
• Contact configuration: 1 changeover (SPDT)
• Max. switching voltage (AC): 250 V
• Max. switching current: 6 A
• Mounting: DIN rail
• Connection: Screw terminals
• Dimensions (W x D x H): 11.2 x 60 x 87.5 mm
• Weight: 45 g
• Operating temperature: -20 °C to 55 °C
• Housing material: Polyamide (PA)
• Colour: White

Tips

When selecting a relay, ensure the coil voltage matches your control signal and the contact rating exceeds the load requirements. For inductive loads, consider using a snubber or varistor across the contacts to extend relay life.