Schneider RUMC21BD | universal plug in relay, Harmony Electromechanical Relays, 10A, 2CO, lockable test but to n, 24V DC

Schneider RUMC21BD | Universal Plug-in Relay – Harmony Electromechanical, 2CO, 10A, 24V DC, Lockable Test Button

The Schneider RUMC21BD is a universal plug-in relay from the Harmony Electromechanical Relays family. It features a compact and modular design, equipped with 2 changeover contacts (2CO), a 10 A current rating, and operates with a 24V DC coil voltage. This relay includes a lockable test button, enabling quick manual operation and testing.

Key Features

• Product Type: Universal Plug-in Electromechanical Relay

• Series: Harmony RUM

• Model: RUMC21BD

• Contacts: 2 CO (2 Changeover contacts)

• Current Rating: 10 A

• Coil Voltage: 24 V DC

• Test Button: Yes, lockable – allows safe testing and manual operation

• LED Indicator: Integrated (for coil status monitoring)

• Contact Material: AgNi (Silver Nickel)

• Mounting Type: Plug-in (requires compatible socket, e.g., RUZC2M or RUZC3M)

Technical Specifications

• Dielectric Strength: 2.5 kV between contacts and coil

• Mechanical Durability: Up to 10 million operations

• Electrical Durability: Up to 100,000 operations at full load

• Response Time:

  • Pickup: ≤ 20 ms

  • Dropout: ≤ 20 ms

• Ambient Temperature Range: −40°C to +70°C

• Standards Compliance: IEC, EN, UL, CSA certified

• Protection Rating: IP40 (relay), IP20 (with socket)

Typical Applications

• Industrial Control Panels

• Automation Systems

• Power Distribution

• Machine Safety Systems

• Signal Switching in PLC Interfaces

Benefits

• Enhanced Safety: Lockable test button for secure manual operation during maintenance

• Visual Feedback: Built-in LED indicator for coil activation status

• Easy Installation: Plug-in design simplifies replacement and wiring

• High Durability: Designed for both mechanical endurance and electrical reliability

• Versatile Use: Suitable for various industrial and commercial control circuits