Phoenix Contact EMG 17-REL/KSR-24/21-21-LC Relay Module 2940391

For control engineers who need reliable signal multiplication in tight spaces, the EMG 17-REL/KSR-24/21-21-LC from Phoenix Contact stands apart with its compact 17.5 mm housing and dual changeover contacts. Unlike basic terminal block relays, this module integrates a miniature power relay with LED status indication and screw connections, making it ideal for DIN rail installations where space and clarity matter.

Highlights

• Two changeover contacts (DPDT) for versatile switching of two independent circuits
• 24 V DC coil with LED status indicator for immediate visual confirmation
• Compact 17.5 mm width saves space on crowded DIN rails
• Screw connection technology ensures secure wiring in industrial environments
• High insulation voltage of 4 kV between input and output for safety

In daily use

Mount the module on a standard DIN rail and connect your 24 V DC control signal to the coil terminals. The LED lights up when the relay is energized, providing at-a-glance status. The two changeover contacts can switch loads up to 6 A at 250 V AC/DC, making the module suitable for controlling contactors, valves, or signal lamps. The polyamide housing offers IP20 protection, appropriate for control cabinets and distribution boards. With an operating temperature range of -20 °C to 50 °C, it performs reliably in typical industrial settings.

Full specifications

• Input voltage: 24 V DC
• Output contacts: 2 changeover contacts (DPDT)
• Max. switching current: 6 A
• Max. switching voltage: 250 V AC/DC
• Connection method: Screw connection
• Mounting type: DIN rail
• Protection class: IP20
• Operating temperature: -20 °C to 50 °C
• Coil voltage: 24 V DC
• Relay type: Miniature power relay
• Status indicator: LED
• Insulation voltage (input/output): 4 kV
• Electrical life: 10^5 cycles (at 6 A, 250 V AC)
• Mechanical life: 10^7 cycles
• Housing material: Polyamide (PA)
• Terminal block type: Basic terminal block
• Product series: EMG

Final note

With its slim profile and robust relay performance, the EMG 17-REL/KSR-24/21-21-LC is a dependable choice for expanding control outputs in automation projects.