Protection & Monitoring

131 products

DC and AC protection devices for solar photovoltaic systems, covering everything needed to protect an inverter, batteries and panels from fault conditions.PV combiner ... Read more ↓

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131 items

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  • Three-phase fuse switch disconnector with red operating handles and black fuse cartridges mounted in white enclosure.

    Mersen MULTIBLOC 400A NH Fuse Switch Disconnector | W1002129

    Mersen

    Mersen MULTIBLOC 400A NH Fuse Switch Disconnector | W1002129

    From£198.45inc VAT £165.38exc VAT

    In stock
  • Voltacom IP65 solar PV combiner box mounted open, showing four string inputs with Gibney surge protectors and output terminal

    Solar PV Combiner Box 4 In 4 Out 600V DC | Surge Protection

    Voltacon

    Solar PV Combiner Box 4 In 4 Out 600V DC | Surge Protection

    £409.50inc VAT £341.25exc VAT

    In stock
  • Raspberry Pi 4 kit with red and white case, USB cable, 32GB microSD card, and circuit board with 2GB RAM displayed together.

    Solar Assistant Monitor for Growatt SPF Inverters | Raspberry Pi 4

    Voltacon

    Solar Assistant Monitor for Growatt SPF Inverters | Raspberry Pi 4

    £187.95inc VAT £156.63exc VAT

    In stock
  • BENY 2-pole isolator switch with black rotary knob marked ON and OFF, mounted on white plate, IP65 rated.

    AC Isolator Switch 4-Pole 230V-440V 63A IP65 | BENY BYAF-63

    Voltacon

    AC Isolator Switch 4-Pole 230V-440V 63A IP65 | BENY BYAF-63

    £31.49inc VAT £26.24exc VAT

    In stock
  • Black rectangular Wi-Fi monitoring box with green LED indicator, gold antenna connector, and wall-mounted bracket, shown at a

    Wi-Fi Monitoring Box for InfiniSolar & Voltasol Hybrid Inverters

    Voltacon

    Wi-Fi Monitoring Box for InfiniSolar & Voltasol Hybrid Inverters

    £76.07inc VAT £63.39exc VAT

    In stock
  • GAVE Y-Series motorised automatic transfer switch with red terminal block, white enclosure, red manual override handle, and y

    160A Motorised Automatic Transfer Switch | GAVE Electro Y-Series

    GAVE Electro

    160A Motorised Automatic Transfer Switch | GAVE Electro Y-Series

    £523.69inc VAT £436.41exc VAT

    In stock
  • BENY BDM-125 DC circuit breaker with red ON and black OFF toggle switches and red push-to-trip button on front panel.

    DC MCCB Circuit Breaker 500V 2-Pole for Solar PV & Batteries

    Voltacon

    DC MCCB Circuit Breaker 500V 2-Pole for Solar PV & Batteries

    From£107.78inc VAT £89.82exc VAT

    In stock
  • GAVE Y-Series motorized automatic transfer switch with red terminal block, white enclosure, manual override handle, and statu

    200A Motorised Automatic Transfer Switch | GAVE Electro Y-Series

    GAVE Electro

    200A Motorised Automatic Transfer Switch | GAVE Electro Y-Series

    £613.77inc VAT £511.48exc VAT

    In stock
  • GAVE Y-Series 250A motorised automatic transfer switch with red terminal block, white control unit, red manual position indic

    250A Motorised Automatic Transfer Switch | GAVE Electro Y-Series

    GAVE Electro

    250A Motorised Automatic Transfer Switch | GAVE Electro Y-Series

    £691.49inc VAT £576.24exc VAT

    In stock
  • White CHINT consumer unit with hinged cover open, showing orange isolator switch and three blue circuit breakers inside, moun

    Consumer Unit for Solar Inverters 1kW to 5kW | Chint RCD MCB

    Chint

    Consumer Unit for Solar Inverters 1kW to 5kW | Chint RCD MCB

    £49.88inc VAT £41.57exc VAT

    In stock
  • White weatherproof DC isolator switch with black rotary dial marked ON, rated IP66/IP67, mounted on enclosure with cable entr

    DC Isolator Switch for 2 Solar Strings IP66/67 | Kraus & Naimer

    Kraus & Naimer

    DC Isolator Switch for 2 Solar Strings IP66/67 | Kraus & Naimer

    From£44.10inc VAT £36.75exc VAT

    Available to order
  • Three fire-rated AC switch disconnectors in gray enclosures with red rotary handles and yellow backgrounds, shown in descendi

    Fire-Rated AC Switch Disconnector 25A-250A F300/F400 | GAVE Electro

    GAVE Electro

    Fire-Rated AC Switch Disconnector 25A-250A F300/F400 | GAVE Electro

    From£124.64inc VAT £103.87exc VAT

    In stock
  • Black cylindrical WiFi data logger with ribbed top cap, reset button, and status indicator lights for NET, COM, and PWR.

    Solis S5-WiFi-ST WiFi Data Logger 4-Pin for up to 10 Inverters

    Solis

    Solis S5-WiFi-ST WiFi Data Logger 4-Pin for up to 10 Inverters

    £28.98inc VAT £24.15exc VAT

    In stock
  • BENY PV Combiner Box interior view showing circuit breakers, contactors, and safety switches mounted on DIN rail within IP65

    Solar PV Combiner Box 7kW IP65 AC/DC Enclosure | Voltacon

    Voltacon

    Solar PV Combiner Box 7kW IP65 AC/DC Enclosure | Voltacon

    £367.50inc VAT £306.25exc VAT

    In stock
  • EY800W solar panel multimeter with test cables and carrying case, displayed on white background.

    Solar Panel Tester Multimeter 800W MPPT | Voltacon

    Voltacon

    Solar Panel Tester Multimeter 800W MPPT | Voltacon

    £82.12inc VAT £68.43exc VAT

    In stock
  • Victron GX Touch 70 display with coiled black USB cable, showing real-time energy monitoring dashboard with battery, generato

    Victron GX Touch 70 Flush Mount Display | BPP900455170

    Victron Energy

    Victron GX Touch 70 Flush Mount Display | BPP900455170

    £309.74inc VAT £258.12exc VAT

    In stock
  • White Gawe DC disconnector enclosure with three gray modules featuring orange terminal bars and black switches mounted on DIN

    Battery Fuses & DC Disconnector 250A | Mersen NH00 Protection

    Mersen

    Battery Fuses & DC Disconnector 250A | Mersen NH00 Protection

    £152.25inc VAT £126.88exc VAT

    In stock
  • Raspberry Pi 4 board in black case above laptop and phone displaying Solar Assistant monitoring dashboard with energy graphs

    Solar Assistant Monitoring Kit | Sunsynk Deye Raspberry Pi 4

    Voltacon

    Solar Assistant Monitoring Kit | Sunsynk Deye Raspberry Pi 4

    £205.80inc VAT £171.50exc VAT

    In stock
  • Victron Energy GX Touch 50 display mounted on wall showing real-time solar power system monitoring with shore power, absorpti

    Victron GX Touch 50 Wall Mount Bracket | BPP900465050

    Victron Energy

    Victron GX Touch 50 Wall Mount Bracket | BPP900465050

    £13.37inc VAT £11.14exc VAT

    In stock
  • Sonoff TH Elite smart switch with display and accessories shown: device with screen and antenna, plus external antenna and RJ

    Smart Wi-Fi Temperature and Humidity Switch 16A | Sonoff TH Elite

    Sonoff

    Smart Wi-Fi Temperature and Humidity Switch 16A | Sonoff TH Elite

    £20.95inc VAT £17.46exc VAT

    In stock
  • Black rectangular device with two Ethernet ports and one USB port, three status indicator lights, labeled for RS-485 and DC I

    Web Server II Modbus 5Vdc Monitor for Hybrid Inverters | Voltacon

    Voltacon

    Web Server II Modbus 5Vdc Monitor for Hybrid Inverters | Voltacon

    £72.45inc VAT £60.38exc VAT

    In stock
  • Solar Assistant kit with Raspberry Pi 4, case, microSD card, and AC/DC power supply components displayed.

    Solar Assistant Raspberry Pi 4 Solar Inverter Monitor | Voltacon

    Voltacon

    Solar Assistant Raspberry Pi 4 Solar Inverter Monitor | Voltacon

    £166.95inc VAT £139.13exc VAT

    In stock
  • ZBENY BHT-5/5 solar combiner box with yellow electrical hazard symbol and red accent stripe on gray metal housing.

    Solar PV Rapid Shutdown Combiner Box 5 String 1500V | Voltacon BFS-S4

    Voltacon

    Solar PV Rapid Shutdown Combiner Box 5 String 1500V | Voltacon BFS-S4

    £262.50inc VAT £218.75exc VAT

    Available to order
  • Solar Assistant Orange Pi controller board, case with logo, and SanDisk 32GB Ultra microSD card with adapter in packaging.

    Solar Assistant Orange Pi Controller & 32GB SD Card | Voltacon

    Voltacon

    Solar Assistant Orange Pi Controller & 32GB SD Card | Voltacon

    £173.25inc VAT £144.38exc VAT

    In stock

About Protection & Monitoring

DC and AC protection devices for solar photovoltaic systems, covering everything needed to protect an inverter, batteries and panels from fault conditions.

PV combiner boxes bring together DC fuses, DC isolators and cable glands on a standard DIN rail, letting you protect multiple parallel strings in a solar array from one enclosure. String fuses and holders from GAVE Electro are rated at 1000V in 12A, 15A and 20A versions, with terminals accepting up to 10mm² flexible or 16mm² solid cable, and are built to interrupt the low-fault currents typical of PV arrays.

Kraus & Naimer DC isolators give you manual isolation between the PV array and inverter on grid-tied and off-grid systems, fitted close to the inverter and sized against the string's Voc and Isc figures. AC isolators from the same range provide manual isolation between inverter and grid or AC loads, fitted next to the consumer unit as required on every installation. Arc fault circuit interruption combiner boxes are also included for installations that need this extra layer of protection.