WAGO 857-400 Isolation Amplifier 857400

Description:

The WAGO 857-400 Isolation Amplifier is used in industrial automation and process control systems to convert, isolate, filter, and transmit analog current and voltage signals between field devices and control equipment. Commonly installed in control panels, process automation systems, water treatment facilities, OEM machinery, and industrial manufacturing equipment where accurate signal conditioning and electrical isolation are required. Maintenance teams, OEMs, and system integrators use this module for analog signal conversion, PLC input protection, process control upgrades, and elimination of ground loop interference.

Applications:

The WAGO 857-400 isolation amplifier is commonly used in industrial automation systems for conditioning signals from transmitters, sensors, flow meters, pressure devices, level instruments, and process controllers in manufacturing plants, chemical processing systems, HVAC controls, water treatment facilities, and industrial process automation applications where dependable analog signal isolation and transmission are critical.

Technical Specifications:

• Manufacturer: WAGO
• Part Number: 857-400
• Product Type: Isolation Amplifier / Signal Conditioner
• Input Signal Types: Current and Voltage Signals
• Output Signal Types: Current and Voltage Signals
• Input Ranges: 0-20mA, 4-20mA, 0-5V, 1-5V, 0-10V, 2-10V
• Output Ranges: 0-20mA, 0-10V (Configurable)
• Supply Voltage: 24V DC
• Configuration Method: DIP Switch Configuration
• Isolation Voltage: 2500V
• Response Time: 3.5ms Typical (100Hz)
• Accuracy: Up to ±0.1% Typical
• Mounting Type: DIN Rail Mount
• Connection Technology: Push-In CAGE CLAMP®
• Module Width: 6 mm
• Protection Rating: IP20
• Operating Temperature Range: -25°C to +70°C
• Application Type: Analog Signal Isolation and Conditioning

Common Replacements:

• WAGO 857-403
• WAGO 857-401
• WAGO 857-550