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40A Power & Electrical Supplies

Shop the best prices on 1,778 great value 40a power & electrical supplies. Shopping for power & electrical supplies is easy with Fruugo, with SALE discounts, offers and savings on Dangtu Huimang Jiancai Shangmao Youxian Gongsi, Jelivey, Kincjon and more. Buy power & electrical supplies online safely with Fruugo, with secure payment and fast shipping to United Kingdom.

Electrical SwitchesCircuit Breaker PanelsPower ConvertersSolar Energy KitsWire Terminals & Connectors
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1 - 32 of 1,778
BSB1-30 400V 40A 50A CIRCUIT BREAKER THREE PHASE GENERATOR PARTS
£41.09 Save £12.32 RRP: £53.41
high quality30a 40a 50a 60a 70a 80a 100a 120a 150a 200a 250a 300a Amp Car Circuit Breaker Portable Waterproof 12-48v
£7.90 Save £7.08 RRP: £14.98
House 230VAC 40A 63A 80A Adjustable Protection Over and Under Value Automatic High and Low Voltage Protect Relay
£30.89 Save £11.90 RRP: £42.79
Tuya WiFi Smart Circuit Breaker with Timer and Remote Control App
£94.79 Save £35.69 RRP: £130.48
GEYA GYM9 4P MCB 6A-63A 6KA Breaking Capacity MCB Din Rail Mini Circuit Breaker 6A-63A AC Type Factory Direct Manufacturer
£27.79 Save £10.86 RRP: £38.65
2P 32A 10/30/100/300mA Type A RCCB RCD ELCB Electromagnetic Residual Current Circuit Breaker Differential Breaker Safety Switch
£36.67 Save £13.83 RRP: £50.50
Kuoyuh 98 Series 15a Manual Reset Thermal Overload Protector Switch 3a-50a Straight Pin Screw Pin Mi
£21.95 Save £27.05 RRP: £49.00
Dc Circuit Breaker 1000v 2 Pole Double Mcb Solar Pv 63 Amp
£22.95 Save £6.00 RRP: £28.95
Wdyk 10a - 80a 1p Tuya Zigbee Smart Circuit Breaker Remote Control Automatic Intelligent Interruptor
£69.11 Save £35.88 RRP: £104.99
1P/2P/3P/4P Tuya Zigbee Smart Circuit Breaker 16A-125A Automatic Switch Overload Short Circuit Works
£54.00 Save £30.00 RRP: £84.00
1P/2P/3P/4P Tuya Zigbee Smart Circuit Breaker 16A-125A Automatic Switch Overload Short Circuit Works 25-26s
£71.12 Save £71.12 RRP: £142.24
Dc Circuit Breaker 1000v 2 Pole Double Mcb Solar Pv 63 Amp-lian
£7.92 Save £9.96 RRP: £17.88
Boats/Car Circuit Breaker with Manual Resets Switches Waterproof Inline Fuses Inverters High Current Circuit Breaker
£18.98
Kuoyuh 98 Series 8a 250vac Manual Reset Thermal Overload Protector Switch Mini Circuit Breaker
£46.37 Save £86.11 RRP: £132.48
6KA 2P Electromechanical RCCB RCD Safety Switch, 16A-63A, 10mA-100mA, 230V Residual Current Circuit Breaker
£22.37 Save £26.84 RRP: £49.21
Residual Current Circuit Breaker with Leakage Protection, DZ47LE NXBLE Series
£46.75 Save £60.78 RRP: £107.53
Bolt-down Automotive Fuse BF1 Series Auto Fuse 30A 40A 50A 60A 80A 100A 125A 150A 175A 200A Flat Type Fuse Rated 32V LITTELFUSE
£43.20
Intelligent Relays Reset Protectors Adjustable Relays Over Voltages Current & Under Voltages Protective Device Multicolor
£21.26
2P DC 1000V Solar Mini Circuit Breaker 3A 6A 10A 16A 20A 25A 32A 40A 50A 63A DC
£20.12 Save £12.08 RRP: £32.20
Digital Voltages Protections Device Automatic Voltages Regulator for Electrical Equipment in Homes Offices & Factories Multicolor
£21.73
Multipurpose 1 Poles 24VAC Contactors 25A/40.0A Rating Convenient for Air Conditioners And Electrical Panel Use Multicolor
£24.67
Miniature Residual Current Circuit Breaker 1 Pole 400v Household Electric Leakage Protector Din Rail Installation Dz47-63
£11.51 Save £4.61 RRP: £16.12
Kuoyuh 98 Series 15a Straight Pin Screw Pin Mini Circuit Breaker 3a - 50a Manual Reset Thermal Overload Protector Switch
£25.95 Save £33.05 RRP: £59.00
DC36V 48V to 24V Converter Voltage Reducer 30A/40A/55A/65A Waterproof Step Down Converter Transformering for Trucks
£67.84
Sturdy 1 Poles Conditioner Contactors 25A/40.0A 24V Coils Flame Retardant Housing for Compressor Motor Control Multicolor
£22.72
TUYA With Metering WIFI Smart Circuit Breaker 1P 63A Rail DIN For Smart Home Wireless Remote Control Switch By Smart Life APP
£32.14 Save £64.27 RRP: £96.41
TUYA With Metering WIFI Smart Circuit Breaker 1P 63A Rail DIN For Smart Home Wireless Remote Control Switch By Smart Life APP
£36.40 Save £72.79 RRP: £109.19
For 1p2p3p4p Tuya Zigbee Smart Circuit Breaker 16a125a Automatic Switch Overload Short Circuit Works
£159.00 Save £180.00 RRP: £339.00
1P Din Rail WIFI Smart Energy Meter Power Consumption kWh Meter Circuit Breaker Time Timer Switch Relay Voltmeter for Smart Home
£46.36 Save £15.44 RRP: £61.80
20-150amp Circuit Breaker Dual Battery Ip67 12v-24v Fuse Manual Reset Waterproof
£7.91 Save £6.32 RRP: £14.23
2 PCS Audio Circuit Breaker,Zinc Alloy Boat Breaker Switch With Manual Reset for Marine Boat Automotive Industry Electrical Appliances
£26.38 Save £52.75 RRP: £79.13
24V-380V SSR-40DA 40A 3-32V DC-AC Solid State Relay Module New
£13.42