METZ CONNECT KRA-M6/21 Interface Relay Module 24V AC/DC, 1 CO Contact, 6A, White 11061525

In industrial control panels and building automation systems, reliable signal switching is critical. The METZ CONNECT KRA-M6/21 interface relay module provides a compact and dependable solution for isolating and amplifying signals between controllers and field devices. With a 24 V AC/DC coil and a single changeover contact rated up to 250 V AC/DC and 6 A, it handles a wide range of switching tasks. Its DIN rail mounting and screw terminals allow for quick installation in distribution boards or control cabinets. The white housing offers clear visibility and a neat appearance in any setup.

Key specifications

• Coil voltage: 24 V AC/DC
• Contact configuration: 1 changeover (CO)
• Max. switching voltage: 250 V AC/DC
• Max. switching current: 6 A
• Switching capacity: 1500 VA (AC) / 150 W (DC)
• Mounting: DIN rail
• Connection: Screw terminals
• Operating temperature: -20 °C to +55 °C
• Protection class: IP20
• Contact material: AgNi
• Mechanical life: 10 x 10^6 cycles
• Electrical life: 100 x 10^3 cycles (at 6 A, 250 V AC, resistive load)
• Dimensions (W x D x H): 11.2 x 60 x 87.5 mm
• Weight: 45 g
• Colour: White

Why choose it

This relay module offers a space-saving design with a width of only 11.2 mm, allowing high-density installation on DIN rails. The AgNi contact material ensures reliable switching performance and long service life. Its wide operating temperature range makes it suitable for demanding environments. The screw terminals provide secure and maintenance-friendly connections.

Ideal use cases

• Signal amplification between PLCs and actuators
• Isolation of control circuits from power circuits
• Switching of small motors, valves, or lighting loads
• Building automation and HVAC control
• Industrial machinery and process control

Good to know

The module is part of the METZ CONNECT KRA series, known for its reliability and ease of use. It is designed for panel mounting and is compatible with standard 35 mm DIN rails. The white colour provides a clean look and helps in identifying the module in crowded panels.