Schneider RUMC21E7 | Plug in relay, Harmony Relay, universal RUM, 2 C/O, 48 V AC, 10 A

Introduction

The Schneider RUMC21E7 is a plug-in universal relay from the Harmony RUM series, designed for reliable operation in industrial automation, control systems, and electrical switching applications. This relay features two changeover (2 C/O) contacts, operates on 48 V AC, and supports a maximum current of 10 A, making it suitable for diverse control and switching operations.

This versatile relay is used for switching electrical loads, isolating control signals, and providing safe and efficient operation in industrial and commercial applications.

Technical Specifications

• Brand: Schneider Electric
• Series: Harmony RUM
• Model: RUMC21E7
• Type: Universal plug-in relay
• Contact Configuration: 2 C/O (Changeover) contacts
• Coil Voltage: 48 V AC
• Maximum Current Rating: 10 A
• Contact Material: Silver alloy
• Mounting Type: Plug-in (with compatible relay socket)
• Operating Temperature Range: -40°C to +70°C
• Coil Power Consumption: 2 VA
• Mechanical Durability: 30 million operations
• Electrical Durability: 100,000 operations at full load
• Dimensions: 35 mm (width) x 35 mm (height) x 52 mm (depth)
• Protection Rating: IP40 (relay), IP20 (with compatible socket)

Key Features

1. Reliable Switching Performance
   • The RUMC21E7 relay provides two changeover contacts (2 C/O), ensuring efficient and reliable switching between circuits. It is designed to handle up to 10 A, making it suitable for various industrial applications.
2. Versatile Coil Voltage – 48 V AC
   • The relay operates at 48 V AC, which is commonly used in control panels, automation systems, and industrial switching circuits.
3. Plug-In Design for Easy Installation
   • The plug-in design allows for quick and hassle-free installation using a compatible relay socket. This makes replacement and maintenance easier, reducing system downtime.
4. High Durability and Longevity
   • The relay is designed for 30 million mechanical operations and 100,000 electrical operations at full load, ensuring long-lasting performance and high operational reliability.
5. Compact and Space-Saving
   • With compact dimensions, the relay is ideal for control panels and automation cabinets where space efficiency is required.
6. Silver Alloy Contacts for High Conductivity
   • The silver alloy contacts ensure low contact resistance and high conductivity, enhancing the relay’s durability and reducing wear and tear during frequent switching.
7. Wide Operating Temperature Range
   • The RUMC21E7 relay can operate in extreme temperatures, ranging from -40°C to +70°C, making it suitable for demanding industrial environments.
8. Compatible with Harmony Relay Sockets
   • Designed for use with Schneider Electric’s Harmony relay sockets, ensuring a secure and stable connection while maintaining ease of replacement.

Applications

1. Industrial Automation and Control Systems
   • Used in PLC-based control systems for switching and isolating signals, loads, and circuits in automated processes.
2. Motor Control Circuits
   • The relay is suitable for controlling motors, pumps, and industrial drives by providing reliable signal switching.
3. HVAC and Building Automation
   • Integrated into HVAC systems for controlling fans, dampers, and temperature-regulating equipment in commercial and industrial buildings.
4. Lighting Control Systems
   • Used in lighting automation for switching electrical loads such as street lights, warehouse lighting, and emergency lighting systems.
5. Power Distribution Panels
   • Ensures safe and efficient switching in power distribution systems within electrical panels and circuit breaker assemblies.
6. Safety and Alarm Systems
   • Used in security systems for triggering alarms, emergency shut-offs, and fault indication circuits.
7. Renewable Energy Systems
   • Suitable for integration into solar power systems and battery energy storage units for control and automation.