WAGO 857-800 Temperature Transducer / Signal Conditioner, Grey, -25 to 70 °C, 6 x 94 x 97.8 mm, 35.3 g

The WAGO 857-800 is a versatile temperature transducer and signal conditioner designed for precise measurement and conversion of temperature signals from RTD, thermocouple, and potentiometer sensors. With configurable output signals (0-10V, 2-10V, 0-20mA, 4-20mA) and 3-way galvanic isolation, it ensures reliable signal transmission in industrial environments. The device supports a wide range of sensor types including Pt100, Pt1000, Ni100, and thermocouples types B, E, J, K, N, R, S, T. Its compact design (6 x 94 x 97.8 mm) and lightweight (35.3 g) make it ideal for DIN rail mounting.

Advantages

High accuracy (0.1% for RTD, 0.2% for TC), fast response time (<10 ms), and low power consumption (max. 0.8 W). Easy configuration via DIP switches or WAGO-I/O-CHECK software. CAGE CLAMP® connection technology ensures secure and maintenance-free wiring.

Suitable for

• Industrial temperature monitoring and control
• HVAC systems
• Process automation
• Machine building

Key specifications

• Input: RTD, Thermocouple, Potentiometer
• Output: 0-10V, 2-10V, 0-20mA, 4-20mA (configurable)
• Supply voltage: 24 VDC (19.2 ... 30 V)
• Galvanic isolation: 3-way (Input/Output/Supply)
• Mounting: DIN rail 35 mm
• Operating temperature: -25 to +70 °C
• Storage temperature: -40 to +85 °C
• Protection class: IP20
• Dimensions (WxHxD): 6 x 94 x 97.8 mm
• Weight: 35.3 g

Recommendations

For optimal performance, use with WAGO power supplies and I/O modules. Ensure proper configuration via DIP switches or software before installation.