Overview
The TPKXJ-x-DIN series is a compact surge protection device tailored for RS485 communication and industrial control systems. It provides robust protection for 1 pair of signal lines against transient overvoltages caused by lightning and electromagnetic disturbances. With fast clamping response and multiple working voltage models, it is an ideal choice for control cabinets, PLCs, and monitoring interfaces in harsh environments.
Key Features
Interface: Terminal block, protects 1 pair of RS485 signal lines
Surge capacity: In = 5 kA, Imax = 10 kA (8/20 ยตs waveform)
Fast response time: < 10 ns, ensures stable data transmission
Available in multiple working voltages: 8V, 15V, 30V, 65V, 175Vdc
Low voltage protection level (Up): from 12V to 250V
DIN rail mountable (35 mm), screw terminal connection
Self-contained design, no external power required
Durable PA66 housing with IP20 protection
Operating temperature: โ40ยฐC to +80ยฐC; installation altitude โค 4000 m
Applications
RS485 signal and control lines
PLC and industrial automation systems
Security and monitoring equipment
Power supply control and UPS units
Telecom cabinets and relay panels
Smart grid and metering terminals
Standards and Compliance
Complies with IEC 61643-21 and EN 61643-21
SPD Type: C3 classification for signal lines
Surge withstand: up to 10 kA (8/20 ยตs)
