Phoenix Contact PLC Relay Module with 24VDC Coil and Screw Base

Description

This is a complete PLC relay module from Phoenix Contact, featuring the PLC-BSC-24DC/21-21 base with screw connection and an included REL-MR-24DC/21-21 plug-in miniature relay. It is designed for universal use in control cabinets and automation systems, providing reliable galvanic isolation and signal switching. The 24V DC input makes it compatible with standard PLC output cards, while the two changeover contacts offer flexible wiring options for various loads.

Specifications

• Manufacturer: Phoenix Contact
• Base Model: PLC-BSC-24DC/21-21
• Relay Model: REL-MR-24DC/21-21
• Input Voltage: 24V DC
• Contact Type: 2 PDT (Double Pole Double Throw / 2 changeover contacts)
• Connection Technology: Screw terminals
• Maximum Switching Voltage: 250V AC/DC
• Limiting Continuous Current: 6 A
• Contact Material: AgNi (Silver Nickel)
• Mounting: DIN rail NS 35/7.5

Label Info

• Base Order Number: 2967015
• Relay Order Number: 2961192

Application

Ideal for use as an interface between a controller and actuators or sensors. Common applications include motor control, solenoid valve activation, lamp switching, and signal amplification in industrial automation, process control, and building automation systems.

Country of Origin

Germany

CO2 Impact

By purchasing this refurbished or surplus relay module, you are helping to avoid approximately 1.9 kg of CO2 emissions compared to buying a new one. This saving is equivalent to the emissions from driving a standard car for 9.5 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

What is the difference between the PLC-BSC and PLC-RSC series bases?

The primary difference is the connection technology. The 'BSC' in PLC-BSC-24DC/21-21 stands for a screw connection (from the German 'Schraubanschluss'), while 'RSC' would indicate a spring-cage connection (from the German 'Zugfederanschluss'). This model uses robust screw terminals for secure wire termination.

Can I use a different relay in this PLC-BSC-24DC/21-21 base?

Yes, the PLC-series bases are modular. You can use other compatible miniature relays from Phoenix Contact with the same pinning and a 24V DC coil. However, this assembly comes with the specified REL-MR-24DC/21-21, which is designed for general-purpose power switching.

What are the benefits of the AgNi (Silver Nickel) contact material?

AgNi contacts offer a good balance of properties, including high electrical conductivity and excellent resistance to material transfer and welding, especially when switching moderate inductive or capacitive loads. This makes them a durable and reliable choice for a wide range of industrial applications.

Last Update: Friday, March 13, 2026

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