Industrial Controller
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Infinite Innovation, the Future of Industrial Control Systems
Infinite Innovation, the Future of Industrial Control Systems
PRODUCT POSITION:HOMEPRODUCT—TO-1-102/1/SVB
TO-1-102/1/SVB
Category Parameter Specification Application Protected Circuit Analog signals (e.g., 4-20 mA) Connection In-series with the signal line Electrical Characteristics Nominal Voltage 8 V DC Max. Operating Voltage 12 V DC Nominal Current ≤ 250 mA Voltage Drop Typically < 1 V Surge Protection Performance Test Waveform (IEC 61643-21) 1.2/50 μs (Voltage) - 8/20 μs (Current) Nominal Discharge Current (In) 5 kA (8/20 μs) Max. Discharge Current (Imax) 10 kA (8/20 μs) Protection Level (Up) < 25 V (at In = 5 kA, 8/20 μs) General Data Number of Channels 1 Connection Type Screw terminals Mounting 35 mm DIN Rail Housing Material Plastic (PA 6.6) Operating Temperature -40 °C to +80 °C Standards / Approvals IEC 61643-21, CE
DESCRIBE
The Eaton TO-1-102/1/SVB is a compact surge protection device designed to safeguard sensitive analog signal lines, such as the standard 4-20 mA loops, from transient overvoltages caused by lightning strikes, electrostatic discharge, or switching operations in industrial systems. It is typically installed in control cabinets on a DIN rail and connected in series with the signal line to protect valuable field devices (like sensors/transmitters) and control system components (like PLC/DCS analog input cards).
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