The Yokogawa AMN21 Nest for Relay I/O Module is a dedicated chassis designed to house relay I/O modules in CENTUM VP and ProSafe‑RS systems. It provides mechanical support, electrical backplane connectivity, and secure terminal wiring, ensuring reliable integration and stable operation in distributed control architectures.
Specifications
Manufacturer: Yokogawa
Model Number: AMN21
Product Type: Relay I/O Module Nest
Function: Provides housing and connectivity for relay I/O modules
Construction: Industrial chassis with integrated bus connectors
Wiring: M4 screw terminals for secure field wiring
Voltage Withstand: 1500 V AC/min (module dependent)
Operating Temperature: −20 °C to +60 °C
Dimensions: Standard Yokogawa nest form factor
Weight: ~2.0 kg
Compatibility: Yokogawa CENTUM VP and ProSafe‑RS systems
Features
Reliable Relay Integration: Ensures stable housing and connectivity for relay I/O modules
Mechanical Security: Modules locked into nest for vibration resistance
Channel Isolation: Provides separation between installed modules (module dependent)
Simplified Installation: M4 screw terminals allow quick and secure wiring
System Integration: Designed for CENTUM VP and ProSafe‑RS architectures
Maintenance Friendly: Clear labeling and modular design for easy replacement
