Signal SPD The can provide surge protection for field equipments such as sensors, transmitters, flow meters, solenoid valves, thermocouples, thermal resistance, devices with RS485 or RS232 interface and for I/O interfaces such as Al, AO, Dl, DO, Tl, Pl in PLC, DCS, FGS, ESD control systems.

equipment in intrinsical safety circuits that meet the same design and structural standards as intrinsic safety equipment, which requires certification and approval of them.

Signal SPD For 5V

FAQ of Signal SPD

SPD for signal is mounted by DIN rail. It can be selected from informations below.

For example, normally,

RS485， TC：5V，

2. Rated current IL

Select 2 wires, 3 wires, 4 wires accordingly.

No——select non intrinsic safety SPD.

SPD protected the devices by discharging current to the ground. One-time strike will not damage SPD unless SPD is chosen incorrectly.

As a