Yokogawa SARM55W-000 Relay Output Terminal Board

Overview

The Yokogawa SARM55W-000 is a high-performance relay output terminal board for CENTUM VP and other Yokogawa DCS systems. It delivers 32 isolated relay output channels, ensuring reliable signal interfacing with field devices such as solenoids and alarms. Engineers use it to handle digital outputs with stable performance under demanding industrial environments. The design supports non-intrinsically safe applications, making it suitable for general-purpose automation setups. Its rack-mountable construction and screw terminal wiring simplify installation and long-term maintenance.

Technical Specifications

• Model: SARM55W-000

• Type: Relay Output Terminal Board (Non-intrinsically safe)

• Channels: 32 relay outputs

• Output Type: Normally open (NO) contact

• Maximum Load per Point:

• 250 V AC: 0.6 A

• 30 V DC: 0.6 A

• 125 V DC: 0.1 A

• Minimum Load: 5 V, 10 mA

• Rated Load Capacity: 250 V AC / 5 A or 24 V DC / 5 A (resistive)

• Isolation: Relay-based electrical isolation per channel

• Connection Interface: KS cable (e.g., AKB331)

• Field Wiring: M3.5 screw terminals with transparent cover blocks

• Mounting: 19-inch rack, 3U size with plug-in terminal blocks

• Power Supply:

• Internal Circuit: 24 V DC, Max. 0.65 A

• Field Device: Dual-line supply (per 16 points)

• Insulation Resistance: ≥10 MΩ @ 500 V DC

• Withstanding Voltage:

• Field device terminals to case: 2 kV

• 24 V power terminals to case: 500 V

• 24 V power terminals to field device terminals: 2 kV

• Operating Temperature: 0 to 50 °C (32 to 122 °F)

• Humidity Range: 10% to 90% RH, non-condensing

• Weight: 2.2 kg