DEHN DCU EMOB 2 25 Type 2+3 Surge Arrester for DC Charging Infrastructure 900902

For electric vehicle charging stations operating on DC power, the DEHN DCU EMOB 2 25 provides reliable surge protection in a compact DIN-rail module. Installers and system integrators use it to safeguard charging electronics from transient overvoltages, ensuring continuous operation and reducing downtime.

Key specifications

• Type 2+3 surge protective device (SPD)
• Max. continuous operating voltage (Uc): 25 V DC
• Nominal discharge current (In): 5 kA (8/20 µs)
• Max. discharge current (Imax): 10 kA (8/20 µs)
• Voltage protection level (Up): ≤ 250 V
• Combined impulse (Uoc): 1.2 kV
• Response time (tA): < 25 ns
• Operating temperature range: -40 °C to +80 °C
• Mounting: DIN rail 35 mm, width 1 TE (18 mm)
• Degree of protection: IP20
• Enclosure material: thermoplastic, red
• Connection: screw terminals, max. 16 mm² solid / 10 mm² stranded

Why choose it

This arrester combines Type 2 and Type 3 protection in one unit, reducing the need for separate devices. Its fast response time and high discharge capacity make it suitable for protecting sensitive DC charging equipment from lightning and switching surges.

Ideal use cases

• DC fast charging stations for electric vehicles
• E-mobility infrastructure in commercial and public facilities
• Protection of DC power lines in charging systems

Good to know

The module is designed for easy installation on standard DIN rails and is compliant with EN 61643-11 and IEC 61643-11.