Written by Fraser Cowie, Product Marketing Manager- Interface

Rooftop photovoltaic systems can generate lethal DC voltages – they cannot be turned off or disconnected easily on the DC side.  So how do panels get cleaned or maintained safely?  and if there is a fire or flood can emergency personnel be sure that they will not get a shock while trying to help?

Phoenix Contact has developed a new product that, if fitted to your PV system, will mean that you can be sure you are safe whilst working on rooftop or residential solar installations.

SOLARCHECK RSD (Rapid ShutDown) is a system for safe shutdown of panels in photovoltaic systems. The product is based on intelligent analysis of electrical parameters in the strings. In the event of an error, or after manual shut-down for maintenance and installation work, SOLARCHECK RSD switches the PV system into a safe condition automatically.

No additional communication is necessary via cables or wirelessly. After maintenance or fault elimination, the system safely switches on again automatically at start-up of the inverter, when the string line is closed.

What advantages does the SOLARCHECK RSD bring?

• Safety during maintenance and in dangerous situations thanks to patented error detection and safe shutdown
• Controlled restart via safe auto-start
• By using the existing DC panel cabling, the system can be easily integrated into new and existing systems
• Easy start up without any programming or manual intervention
• Suitable for use on the majority of systems, up to an including 1000 volts DC and a maximum input current of 10 amps

So whether you are a professional contractor, a panel cleaner or a house owner, you can be assured of your safety in all situations when you fit SOLARCHECK RSD!

https://youtu.be/0bsNgxEDm_U

Other new products from Phoenix Contact suitable for solar applications include:

DC to DC converter: Supply your control cabinet directly from the photovoltaic system with the new DC/DC converters from the UNO POWER range. In this way you can save installation costs and increase the efficiency of the system.

Surge protection for photovoltaic systems with generator voltages up to 1500 V: The new VALVETRAB-MB product range now offers powerful and compact protective devices for photovoltaic applications up to 1500 V. Thanks to their variable connection options, the KEMA-certified products can be easily integrated into various photovoltaic applications.

If you wish to discuss your PV needs or would like more information on the products mentioned in this blog, contact Fraser Cowie on 07584514963 or e-mail fcowie@phoenixcontact.com