Overview of 16A 32A 40A Photovoltaic DC Switch Disconnector PV Array DC Isolator

16A 32A 40A Photovoltaic DC Switch Disconnector PV Array DC Isolator is critical switching equipment used in electrical systems of power plants and substations. Its primary function is to guarantee the safety of high-voltage electrical appliances and equipment during maintenance work and to isolate voltage. It cannot be used to cut off, input, or disconnect load current and short-circuit current. It can only be used for certain switch operations that do not generate strong arcs—usually used in conjunction with high-voltage circuit breakers to isolate the power supply during maintenance, providing safety protection for maintenance personnel and equipment. According to the installation location and the number of insulation columns, they can be divided into indoor type, outdoor type, single-column, double-column, and three-column types. The electrical system of power plants and substations is crucial for guaranteeing the safety of maintenance personnel and equipment.

Characteristics of 16A 32A 40A Photovoltaic DC Switch Disconnector PV Array DC Isolator

“Safety guarantee during maintenance of high-voltage electrical appliances and devices: This is the primary function of high-voltage isolation switches, which can ensure the safety of equipment and operators during maintenance work.

Isolation voltage: It plays the role of isolating voltage and cannot be used to cut off or connect current, nor can it be used to break short-circuit current.

Nonarc extinguishing function: It cannot be used to cut off current; that is, it does not have an arc extinguishing function.

Multiple types: According to the installation location, it can be divided by indoor and outdoor types. According to the number of insulation pillars, they can be divided into single-column, double-column, and triple-column types. Each voltage level has optional equipment.”

Specifications of 16A 32A 40A Photovoltaic DC Switch Disconnector PV Array DC Isolator

This photovoltaic or pv DC switch disconnector handles DC power in photovoltaic panel arrays. It securely cuts the electric circulation throughout upkeep or emergency situations. You obtain it in 3 major existing rankings: 16 amps, 32 amps, and 40 amps. These match different power degrees in solar installations. The voltage rating is high, usually 1000 volts DC or 1500 volts DC. This fits most planetary systems.

The body is difficult thermoplastic. It holds up against rough weather and UV rays. Internal parts are copper alloy or silver alloy. These make certain good conductivity and low resistance. Get in touches with are created to break the DC arc quickly. This stops damage and fire.

Procedure is easy with a rotary handle. The take care of shows ON and OFF positions clearly. It turns efficiently even after long periods. You see the call placement via a window. This confirms if it’s open or closed.

Safety is essential. The button isolates the PV selection entirely from the inverter or cost controller. It meets rigorous global standards like IEC 60947-3 and TUV accreditation. This assures reputable efficiency and security.

Setup is simple. It places on a standard hullabaloo rail inside a circulation box. Terminals accept big wire dimensions, as much as 10mm Two or 25mm two. Tightening is safe with screw clamps.

Utilize this DC isolator in residential rooftops, industrial solar farms, and commercial power plants. It protects devices and specialists. It ensures conformity with electric codes needing a visible break factor.

The switch takes care of continuous DC current without overheating. It withstands temperature extremes from -40 ° C to +85 ° C. Wetness resistance is high with IP65 score. Dust and water jets won’t influence it.

Choose the best ampere rating for your PV string. Oversizing avoids problem trips. It supplies a physical break for safety. This is better than relying just on electronic disconnects.

Applications of 16A 32A 40A Photovoltaic DC Switch Disconnector PV Array DC Isolator

These DC isolator buttons are necessary security devices for solar energy systems. They regulate the DC power circulation from photovoltaic panels. Individuals mount them between the solar selection and the inverter. Their major work is to safely detach the DC power when needed. This is essential for safety during upkeep work. It additionally permits emergency shutdowns if troubles happen. Various amperage scores suit different system dimensions.

The 16A DC isolator switch fits smaller solar configurations. Believe home systems with just a few panels. It handles the reduced current these systems produce. Installers placed it near to the inverter. It provides a secure indicate cut power for maintenance. This switch protects the wiring and inverter components. It quits power quick during a mistake.

Bigger domestic systems usually need a 32A DC isolator. These systems have extra panels. They produce greater DC current. The 32A button securely manages this increased circulation. It is an usual selection for basic home setups. Use it at the variety combiner box outcome. It likewise works well before the inverter input. This button isolates areas for secure troubleshooting. It protects against electrical mishaps during repair services.

Industrial solar jobs or large domestic varieties require the 40A DC isolator. These systems have numerous panels connected with each other. They create very high DC currents. The 40A switch handles this hefty load reliably. It is developed hard for requiring atmospheres. Install it where major DC lines combine. Utilize it at the main DC disconnect factor before large inverters. This switch ensures secure isolation for the whole selection. It safeguards technicians working downstream. It is crucial for managing large power circulations.

Company Profile

PDDN Photoelectron Technology Co., Ltd. is one of the leading enterprises in power electronics technology and power products, which is fully involved in developing solar inverters， transformers, voltage regulators, distribution cabinets, thyristors， modules， diodes， heaters, and other electronic devices or semiconductors. We will be committed to providing users with high-quality, efficient products and considerate service.

It accepts payment via Credit Card, T/T, West Union, and Paypal. PDDN will ship the goods to customers overseas through FedEx, DHL, by sea, or by air. If you want high-quality 16A 32A 40A Photovoltaic DC Switch Disconnector PV Array DC Isolator, please send us inquiries; we will be here to help you.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment

By sea, by air, by express, as customers request.

Storage Conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

5 FAQs of 16A 32A 40A Photovoltaic DC Switch Disconnector PV Array DC Isolator

What is a PV DC disconnect switch?
This device safely cuts power from solar panels. Electricians use it during maintenance or emergencies. It stops electricity flow completely. It protects both people and equipment. These switches handle high DC voltage from solar arrays. They are rated for up to 1000VDC.

Why choose 16A, 32A, or 40A?
The Ampere (A) rating shows the maximum current the switch can handle. Match the switch size to your solar array’s output. Small residential systems often use 16A switches. Larger home systems or small commercial setups need 32A. Big commercial or industrial solar arrays require 40A switches. Picking the wrong size risks overheating or failure.

How does it improve safety?
Turning off this switch breaks the DC circuit. This isolates the solar panels from the rest of the system. Technicians can then work safely on inverters or wiring. It provides a clear, manual way to kill DC power. This is vital for fire safety and repair work. Never work on a live PV system.

Where should I install this switch?
Install it between the solar panels and the inverter. Place it where it’s easy to see and reach. Mount it close to the inverter is common. Follow local electrical codes exactly. The enclosure must be sturdy and weatherproof (like IP65 rated). Proper installation prevents electrical faults.

Does it need maintenance?
These switches are generally low-maintenance. Check the connections stay tight once a year. Look for any signs of damage, overheating, or corrosion. Ensure the switch operates smoothly. Dust or debris can sometimes affect performance. Keep the area around it clean. Replace it immediately if you find any problems.