K-ELECTRIC 134112 DC Firefighter Switch, 2 MPPT, 2-in 1-out, Type 1 Surge Protection

The K-ELECTRIC 134112 stands out as a motorized DC load break switch engineered specifically for photovoltaic systems with two independent strings. It combines disconnection and Type 1 surge protection in a single IP65-rated enclosure, eliminating the need for separate protective devices.

Highlights

• 2 MPPT inputs, 2-in 1-out configuration
• Integrated Type 1 surge protection (ÜSS T1)
• Motorized switching with < 5 s disconnection time
• IP65 UV-resistant polycarbonate housing
• Max. 1000 V DC, 32 A per string, 64 A total

In daily use

Designed for surface mounting, the switch operates on 230 V AC control voltage and handles two DC strings up to 32 A each. Its 4-pole design ensures reliable isolation, while the integrated surge protection guards against transient overvoltages. The switch functions across a temperature range of -25°C to +50°C, making it suitable for outdoor PV installations.

Full specifications

• Product type: DC Firefighter Switch
• Application: Photovoltaic (PV) systems
• Number of MPPTs/Strings: 2
• Input configuration: 2 independent DC strings
• Output configuration: 1 combined DC output
• Max. system voltage (DC): 1000 V
• Max. current per string (DC): 32 A
• Total max. current (DC): 64 A
• Integrated surge protection: Type 1 (ÜSS T1)
• Enclosure protection rating: IP65
• Disconnection time: < 5 seconds
• Control voltage (AC): 230 V
• Operating temperature range: -25°C to +50°C
• Mounting type: Surface-mounted
• Number of poles: 4-pole DC switch
• Switching principle: Motorized DC load break switch
• Housing material: UV-resistant polycarbonate
• Certifications: CE, VDE

Final note

With its integrated surge protection and robust design, the K-ELECTRIC 134112 provides a compact and reliable solution for PV system disconnection and protection.