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Shop the best prices on 1,337 great value 40a products. Shopping for 40a is easy with Fruugo, with SALE discounts, offers and savings on Fsu, Generic1, CNCEST and more. Buy motor vehicle engine parts, notebooks & notepads, remote controls and more online safely with Fruugo, with secure payment and fast shipping to Ireland.

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1 - 32 of 1,337
Daly 13S 48V BMS for 18650 Lithium Batteries Battery Management System High Current Support 15A
€15.95 Save €8.00 RRP: €23.95
10/20/30/40/50/60a 12/24v Lcd Display Dual Usb Light Solar Charge Controller Qinhai
€19.95
Miniature Residual Current Operated Circuit Breaker Air Switch with Over-current for Protection Leakage Surge Protector
€20.95
Resettable circuit breaker, 12V - 48V, suitable for all types of vehicles
€14.95 Save €9.00 RRP: €23.95
Automatic circuit breaker switches, multiple specifications from 30 - 300A, stably protect electrical systems on ships and vehicles
€17.95 Save €10.00 RRP: €27.95
Marine and vehicle switches, multiple specifications from 30 - 300A suitable for general models, with resettable protection for audio
€18.95 Save €10.00 RRP: €28.95
Automatic circuit breaker switches with multiple specifications available, suitable for vehicle and yacht audio systems
€18.95 Save €12.00 RRP: €30.95
Circuit breaker switch fuse holder, 12 - 48V, compact and lightweight with strong performance
€16.95 Save €10.00 RRP: €26.95
40A/63A Over Voltage Current and Under Voltage Protective Device Din Rail
€26.95
MPPT Solar Charge Controller 40A with LCD Display PV Solar Regulator 12V 24V Auto Controller Dual USB for Solar Panel
€99.00 Save €60.00 RRP: €159.00
AC90-300V WiFiSmart Circuit Breaker over Current Under Voltage Protection Power Metering Wireless RemoteControl Switch,A
€28.95 Save €17.00 RRP: €45.95
Auto Circuit Breaker Reset Fuse Inverter Fuse Holder Inline Fuse Block 20-100 Amp
€24.95 Save €104.05 RRP: €129.00
Auto Circuit Breaker Reset Fuse Inverter Fuse Holder Inline Fuse Block 20-150 Amp
€21.95 Save €21.00 RRP: €42.95
Car Audio Safety Seat DC 20A Car Fused Power Supply for Fuse Tube Circuit Breaker Fuse Box
€8.95 Save €5.00 RRP: €13.95
Solar Controllers Mppt 100a 80a 60a 50a 40a 30a Dual Usb Lcd Display 12v 24v
€29.95 Save €34.05 RRP: €64.00
PWM Solar Charge Controller Regulator Adapt to 3 Kinds of Batteries 10A-60A
€27.95
SINOTIMER SVP-916 Adjustable Self-resetting Over-voltage Under-voltage Protector
€51.95 Save €42.05 RRP: €94.00
40a-300a Auto Car Vehicles Automatic Circuit Breaker Fuse Inverter Reset Switch
€17.95 Save €71.05 RRP: €89.00
Solar Charge Controller LCD Display 2 USB Output Over Current Protection Solar Panel Regulator 12 24V Self Adaption
€31.95
100a Mppt Solar Charge Controller 12/24v Auto Focus Solar Panel Controller Battery Intelligent Regul
€39.95 Save €24.05 RRP: €64.00
Mini Square Fuse 32V 20A 25A 30A 40A 50A60A Car Fuse 40A
€14.95 Save €9.00 RRP: €23.95
Solar Controllers Mppt 100a 80a 60a 50a 40a 30a Dual Usb Lcd Display 12v 24v
€49.95 Save €49.05 RRP: €99.00
Digital Single Pulse Encoder Spot Welder 100a/40a LCD Display Controller Board
€33.95
Over Under Voltage Protector Adjustable Self Resetting Intelligent Voltage Protective Device AC220V
€27.95 Save €36.05 RRP: €64.00
Din Rail Circuit Breaker Smart WIFI Switch Mobile Phone Remote Control 3 Timing Modes for Household Appliances
€31.95 Save €37.05 RRP: €69.00
Tuya Din Rail Smart WiFi Switch Wireless Mobile Phone Remote Control 3 Timing Modes Function for Household Appliances Suitable f
€34.95 Save €7.00 RRP: €41.95
DZ47LE-63-1P 10/16/20/32/40/63A Circuit Breaker Household Leakage Protector 2025
€7.95 Save €8.00 RRP: €15.95
Solar Controllers Mppt 100a 80a 60a 50a 40a 30a Dual Usb Lcd Display 12v 24v - XC
€34.95 Save €16.00 RRP: €50.95
Auto overload protection self recovery protector auto fuse manual recovery audio power circuit breaker
€36.95 Save €112.05 RRP: €149.00
20A 30A 40A 50A Automatic Fuse Manual Reset Circuit Breaker Stud Bolt with Cover
€13.95
20A-50A Circuit Breaker Car Boat Manual Power Protector 12V Fuse Dual Battery
€13.95
100A 40A Double Pulse Encoder LCD Digital Spot Welder Controller Module DIY
€37.95