Overview
The ABB RXMH 2 RK 223 067-AD is a professional-grade auxiliary relay from ABB’s Combiflex modular relay family. Rated for 24V DC operation, this relay delivers heavy-duty switching performance in demanding industrial and utility applications. It functions as both a tripping relay and protective multi-contact output relay, making it ideal for power generation, distribution, and industrial automation systems.
Key Features
- Heavy-duty bridge contacts with high breaking capacity
- Excellent contact reliability and freedom from contact welding risk
- Multi-contact output configuration for complex control logic
- Plug-in design for quick installation and field replacement
- Proven performance in protection and control circuits
Technical Specifications
- Manufacturer: ABB (formerly Asea Brown Boveri)
- Part Number: RXMH 2 RK 223 067-AD
- Relay Type: Auxiliary / Multi-Contact Output Relay
- Coil Voltage (DC): 24V DC
- Contact Type: Heavy-duty bridge contacts
- Contact Configuration: Multiple make and break contacts
- Mounting: Plug-in / Screw terminal
- Series: Combiflex RXMH 2
- Application: Tripping, protection, signaling, and control relays
Typical Applications
The RXMH 2 relay is commonly deployed in:
- Power generation and distribution protection schemes
- Substation control and automation systems
- Industrial motor control and switchgear logic
- Multi-contact auxiliary output circuits requiring high reliability
- Systems paired with protective relays for trip circuit integrity
Compatibility & Replacements
The ABB RXMH 2 RK 223 067-AD is part of the Combiflex relay family and shares a common mounting interface with other RXMH 2 models across different voltage ratings (24V DC, 110V DC, 125V DC, 120V AC, 127V AC, 220V AC, 240V AC). When sourcing replacements or similar units, verify the exact voltage and contact configuration to ensure compatibility with your control circuit. This relay is typically installed alongside protective relays such as RXMS 1 and RXME series units to provide high-speed and heavy-duty tripping contacts for secure breaker operation.
