DC Isolator Switch

The core function of a KRIPAL DC Isolator Switch is to provide a safe, visible point of electrical isolation in a DC circuit. It is designed to safely disconnect the circuit under no load or minimal current conditions, ensuring operators can securely isolate the power source during system maintenance, inspection, or emergencies.

With a high rated voltage of up to 1500V and reliable performance, it provides crucial operational safety for solar DC systems, preventing the risks associated with working on live equipment.

This is a central question when selecting KRIPAL products.

The two series are designed for different needs:

UKPD32 Series: Optimized for 1200V DC applications and has passed rigorous TUV certification. This means it meets high international standards for safety and performance, making it ideal for projects that require full certification for a specific voltage level.

UKGD Series: Offers more comprehensive voltage and current coverage, supporting 1000V to 1500V DC and Frame Current from 63A to 630A. This series provides a flexible and robust solution for a wide spectrum of demanding industrial and renewable energy applications.

Absolutely not. They are two completely different devices with distinct functions and must be used together. KRIPAL DC Isolator Switches are designed for safe isolation and do not have the capability to interrupt fault currents.

Circuit breakers, on the other hand, provide automatic protection against overloads and short circuits. In a system, the circuit breaker trips first to protect the circuit, and then the isolator switch is used to safely isolate the line and the breaker for maintenance.

• Voltage Rating: Must be greater than or equal to your PV string's maximum open-circuit voltage (considering the cold-temperature voltage rise). KRIPAL products cover 1000V to 1500V, meeting the needs of most modern PV systems.
• Current Rating: Choose from the UKGD series (63A to 630A) or the corresponding UKPD32 model based on your circuit's maximum continuous operating current.
• Certification: Certifications like the TUV for the UKPD32 series are critical for accessing many international markets.

The lockable handle is a vital safety feature. It allows maintenance personnel to use a padlock to secure the switch in the "OFF" position. This effectively prevents the accidental or unauthorized re-energization of the circuit by others, enabling a Lockout-Tagout (LOTO) safety procedure and providing the highest level of operational security for your team.

KRIPAL DC Isolator Switches are designed with harsh environmental factors in mind. Our advanced manufacturing capabilities and multiple parallel production lines ensure strict quality control at every stage, from raw materials to finished products. The products feature a robust construction and high-quality key components, enabling them to withstand temperature variations, humidity, and the stresses of daily operation, thereby ensuring long service life and outstanding stability.

Yes, absolutely. KRIPAL possesses strong manufacturing capabilities. Through the parallel operation of multiple production lines and an efficient supply chain management system, we can flexibly meet the demands of orders of any size, ensuring on-time delivery for both small batch purchases and large project procurement, thereby safeguarding the smooth progress of your projects.