DEHN BXT ML2 BE HFS 5 BLITZDUCTOR XT Combined Arrester Module 920270

Protect sensitive 2-wire interfaces such as 0/4-20 mA current loops, RS 485, and PROFIBUS DP with the DEHN BXT ML2 BE HFS 5 BLITZDUCTOR XT combined arrester module. Pluggable into BLITZDUCTOR XT base parts, it provides surge protection for industrial measurement and control systems where signal integrity is critical.

Key specifications

• Nominal voltage: 5 V DC
• Max. continuous operating voltage: 5.5 V DC
• Nominal discharge current (8/20 µs): 20 kA per line
• Lightning impulse current (10/350 µs): 2.5 kA per line
• Voltage protection level: ≤ 15 V (line-line and line-PE)
• Cut-off frequency: > 100 MHz at 50 Ω
• Number of protected wires: 2
• Operating temperature: -40 °C to +80 °C
• Housing material: thermoplastic
• Protection degree: IP20 (with base part)
• Standards: IEC 61643-21, EN 61643-21
• Test class: C1, C2, C3, D1

Why choose it

The BLITZDUCTOR XT module combines high discharge capacity with low voltage protection level, ensuring reliable operation of connected equipment. Its pluggable design allows quick replacement without rewiring, reducing downtime.

Ideal use cases

• Protection of 0/4-20 mA analog signal lines
• RS 485 and PROFIBUS DP networks
• Industrial process control and automation systems

Good to know

Mounting requires a BLITZDUCTOR XT base part (not included). The module is designed for indoor use with an IP20 protection degree when installed on the base.