K-ELECTRIC 134113 Firefighter Safety Switch 3 MPPT, 2-in 1-out, Surge Protection Type 1

The K-ELECTRIC 134113 is a firefighter safety switch engineered for photovoltaic systems with three MPPT circuits. Unlike standard DC isolators, it combines two DC string inputs per MPPT into a single output, reducing wiring complexity while providing manual load break disconnection. Integrated Type 1 surge protection safeguards the array against transient overvoltages, making it a robust choice for rooftop installations.

Highlights

• Three independent MPPT circuits, each accepting two DC strings
• Integrated Type 1 surge protection for enhanced system resilience
• Manual load break switch for safe disconnection during maintenance or emergencies
• Rated for up to 1000 V DC and 32 A per circuit
• UV-resistant polycarbonate enclosure rated IP65 for outdoor use

In daily use

Installers benefit from the switch's surface-mount design and clear input/output labeling, enabling quick wiring of up to six DC strings. The IP65 enclosure withstands harsh weather, and the operating temperature range of -25°C to +60°C ensures reliable performance across climates. The manual load break mechanism provides a visible disconnection point, satisfying firefighter safety requirements without the need for additional isolation devices.

Full specifications

• Product type: DC Disconnect Switch
• Number of poles: 3 (one per MPPT)
• Rated current: 32 A
• Voltage (max.): 1000 V DC
• Protection class: IP65
• Operating temperature: -25°C to +60°C
• Connectors: 6 DC inputs, 3 DC outputs
• Surge protection: Type 1 (T1)
• Housing material: UV-resistant polycarbonate
• Mounting type: Surface mount
• Short-circuit current rating: 10 kA
• Standards compliance: IEC 60947-3, VDE 0660 Part 107

Final note

For solar installations requiring a compact, surge-protected disconnection solution, the K-ELECTRIC 134113 offers a reliable and compliant choice.