H Series Surge Protective Device
Signal-type surge protective device, 12.5mm ultra-slim, supports hot swapping without disconnection, direct DIN-rail grounding, high bandwidth and low insertion loss.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
The H series is a signal-type surge protective device (SPD), mainly used to protect field devices such as two-wire and three-wire transmitters, switches, frequency signals, communication equipment, RTDs and thermocouples, as well as control room equipment such as safety barriers, I/O, DCS and PLC, from damage by lightning surge impulse voltages or switching overvoltages.
The product features an ultra-slim 12.5mm design, supports hot swapping and remains connected after removal; it can be directly earthed via the DIN rail without a separate earth wire; high bandwidth and low insertion loss make it suitable for all types of signal circuits.
| Parameter Name | Technical Specifications |
|---|---|
| Product positioning | |
| Type | Signal-type SPD (Surge Protective Device) |
| Protected objects | Two-wire/three-wire transmitters, switches, frequency signals, communication equipment, RTDs, thermocouples |
| Protected side | Field devices and control room safety barriers, I/O, DCS, PLC |
| Structure and Installation | |
| Thickness | 12.5mm |
| Dimensions | 90mm×77.5mm×12.5mm |
| Hot swappable | Yes, remains connected after removal |
| Earthing | Direct earthing via DIN rail |
| Installation | DIN rail mounting |
| Performance | |
| Bandwidth | High bandwidth |
| Insertion loss | 低 |
- Signal-type SPD, protects two-wire/three-wire field devices and control room equipment
- 12.5mm ultra-slim housing saves cabinet space
- Supports hot swapping; signal remains uninterrupted after removal, so maintenance does not affect production
- Direct earthing via DIN rail eliminates separate earth wire installation
- High bandwidth and low insertion loss, suitable for all types of signal circuits
- Dimensions 90mm×77.5mm×12.5mm, lightweight design
Lightning protection for field signal circuits
Connect the H Series SPD in series in the transmitter 4~20mA circuit to suppress lightning-induced overvoltages.
Cabinet signal-side protection
Install centrally on the I/O terminal side to protect DCS/PLC channels from surge impulses.
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