Disconnector Switch

KRIPAL offers both AC and DC Disconnector Switches, each engineered for distinct electrical systems:

AC Disconnector Switches: Designed for alternating current circuits, commonly used in industrial power distribution, building electrical systems, and HVAC control.

DC Disconnector Switches: Optimised for direct current applications, particularly in photovoltaic (PV) systems, battery storage, and renewable energy installations.

A DC Switch Disconnector is a critical safety device that combines the functions of a load-break switch and a visible isolator. In a photovoltaic (PV) system, it serves as the main switch to safely connect and disconnect the high-voltage DC current from the solar array. It ensures reliable isolation for maintenance and provides crucial protection for personnel and equipment during fault conditions.

KRIPAL's disconnector features an advanced visible contact technology with a transparent inspection window. This allows operators to get immediate visual confirmation of the contact position (open or closed), providing an unambiguous verification that the circuit is isolated. This visible break is a fundamental safety requirement, eliminating any doubt before beginning maintenance work.

Rotary Double-Break is an innovative contact system where the rotating mechanism creates two separate breaks in the electrical circuit simultaneously.

This technology offers:

• Enhanced Arc Quenching: Two breaks extinguish the DC arc faster and more effectively than a single break.
• Higher Voltage Rating: Allows the switch to reliably handle the high DC voltages present in modern PV systems.
• Longer Electrical Life: Reduces contact erosion, ensuring consistent performance over thousands of operations.

The independent arc extinction chamber is a dedicated compartment designed to safely contain and quench the electrical arc that forms when contacts open under load. By channeling the arc into this chamber, which uses techniques like magnetic blow-out or splitter plates to stretch and cool it, the disconnector can safely interrupt high DC currents without damage to the main contacts, ensuring safe operation under load conditions.

Yes. The KRIPAL DC Switch Disconnector is engineered to be an ideal solution across the entire solar market. Its modular design enables customizable configurations to meet the specific current and voltage requirements of any project, from commercial rooftops to large utility-scale PV installations.

Our DC Switch Disconnector is in full compliance with relevant IEC standards, which are the benchmark for international safety and performance. This guarantees that the product meets the most stringent requirements for reliability and safety in global markets.

The integrated lockable handle allows for secure Lockout/Tagout (LOTO) procedures. Maintenance personnel can lock the switch in the "OFF" position with their own padlock, physically preventing the accidental or unauthorized re-energization of the circuit. This is a vital final safety step to protect lives during servicing.