Control Panels Runcorn
PV Distribution Boards
PV Distribution Boards are a key component in solar power installations. Serving as the main hub, they link inverters to on-site electrical loads, ensuring energy is delivered safely and efficiently.
What sets our systems apart from typical off-the-shelf units is their capacity to incorporate a broad range of essential and optional components into high-quality, pre-wired, and pre-assembled setups—providing a true plug-and-play solution.
These may feature, but are not limited to:
- MID Approved Generation Metering
- SolarEdge Firefighter Gateway
- SolarEdge Commercial Gateway
- G99 Protection
- Export Controls ( G100 or RPR )
- RCD Protection
G99 Relay Panels
DSH Cables & Controls has earned a solid reputation in Runcorn, thanks to the reliability of our G99 Relay Panels.
Also known as Secondary Phase Failure or Loss of Mains Protection devices, these panels may be required by your DNO but are widely recognised as best practice for larger solar systems. Although many modern inverters now come with built-in G99 protection, a dedicated protection unit that can be independently tested by an engineer is often the better—and sometimes compulsory—option.
Our design is based on a PV Distribution Board structure, featuring an incomer, isolator, MCBs or MCCBs for the inverters, along with surge and fuse protection. Its key advantage lies in the use of the ABB CM-UFD G99 Relay, which constantly monitors the grid for problems such as voltage variations, frequency instability, or other faults. In the event of a mains failure, the contactor shuts down the inverters until the issue is resolved and grid stability has been restored.
AC Isolators Runcorn
AC Isolator Panels play a vital role in every PV installation. Although not all projects require top-end switchboards, the need for AC isolation is always fundamental.
Our enclosed isolator range covers capacities from 16A through to 4000A, built exclusively with high-quality components — because with equipment as crucial as this, there’s no room for compromise.
One of the main advantages of enclosed isolators is their adaptability. We can tailor the enclosure to suit any cable size, integrate metering, and include latching state contactors for manual generator intertrip functionality. Each unit is purpose-built to match your system layout, performance requirements, and site-specific conditions.
Export Limitation Runcorn
The release of G100 Issue 2 brought important changes to the compliance standards for systems.
We offer solutions covering both conventional contactor-based Reverse Power Relay setups and modern G100 technology capable of monitoring and regulating the output of any inverter. The traditional approach is more economical and complements the manufacturer’s system, while the G100 option provides greater efficiency and control.
Each has its own advantages, and the most effective way to determine which suits your needs is to speak with a member of our team.
Metering/ Contractor Panels
Our contactor and metering panels are upgraded versions of our standard AC Isolator Panels. They retain the essential AC isolation function while adding the advantages of MID-Approved Metering for precise data collection and contactors that offer a range of operational features.
Metering Panels – When metering is required, an MID-Approved Meter is typically needed somewhere within your system. We can integrate this directly into our isolator panels, saving time on installation and wiring at site. Additionally, the door-mounted MID meters give a professional and polished look to the panels. This provides a cost-effective and streamlined method to include metering, available on Mild Steel Enclosures or GRP with an IP66 Inspection Window.
Contactor Panels – Like our Metering Panels, the Contactor Panels offer an alternative isolation method to the conventional rotary isolator. We fit the contactor alongside a latching state momentary key switch, ideal for systems with a backup generator or those requiring PV system intertripping. The momentary key switch ensures the system cannot re-energise until trained personnel manually restart it on site.
String Boxes Runcorn
DC String Junction and Combiner Boxes are increasingly taking the place of traditional DC Isolators, which have come under scrutiny following a number of significant solar fire incidents. As most inverters now feature built-in DC isolation, our Junction and Combiner Boxes provide the flexibility to isolate individual strings and offer customised fuse protection on the positive, negative, both, or neither conductors.
Junction Boxes – These are especially valuable for clients who provide maintenance services, as they allow single strings to be isolated and make it easier to pinpoint exact fault locations. Combined with fuse protection, carefully selected components guided by our expert recommendations, and high standards of workmanship from our team, you can be confident your system is both safe and reliable.
Combiner Boxes – Building on the advantages of Junction Boxes, Combiner Boxes also enable multiple strings to be merged into a single armoured cable. This simplifies cable management and improves safety, particularly for longer cable runs.
UPS (Uninterrupted Power Supply) Panel
Our UPS system, developed by our Director Simon Holdcroft, is an innovative battery changeover solution that enables a property’s full electrical load to switch seamlessly from the grid to battery power, with no interruptions or flickering.
Unlike many other systems, our UPS is designed to support the entire home (as long as sufficient battery capacity is available), not just selected essential circuits. At DSH Cables & Controls, we recognise that everyone’s needs differ—whether you’re working remotely, watching films, or running everyday appliances, your electricity supply stays consistent for as long as the batteries hold charge.
We deliver solutions suitable for both AC and DC coupled battery storage setups.