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When purchasing a product, price is the consumer's primary concern. At present, Kerwinn has 54 products for sale. Kerwinn products range in price from $7.31 to $36.99, and the average price of all the products is about $18.48. It's affordable for most consumers, and you can feel free to pick your favorite products.

We found that most of the Kerwinn products are manufactured by China. The manufacturer provides Kerwinn with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase Kerwinn products from the seller KERWINN. The brand holds an average rating of 4.91, testifying to its excellent reputation.

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Last Updated: Jan 9, 2026

Industrial Basic Switches

KERWINN Mini ATS Automatic Transfer Switch 100 amp Manual Power Transfer Switch 220V Dual Power Electrical Selector Switches DIN Rail Mount （2P）

KERWINN Mini ATS Automatic Transfer Switch 100 amp Manual Power Transfer Switch 220V Dual Power Electrical Selector Switches DIN Rail Mount （2P） Cover
  • 100% Brand New Dual Power Automatic Transfer Switch, Working Voltage: 220V, Measuring Rod: 2P/3P/4P, Minimum Current Required: 2A or more (Insufficient current results in the coil not being able to adsorb)
  • The Automatic Transfer Switch is mainly used to test whether the normal or standby power supply is normal. Small and exquisite, recommended with over-under-voltage protection device, can be installed directly into the distribution box to use.
  • Using industrial silver contacts, solid construction, reliable conversion, easy installation and maintenance, long service life
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KERWINN 15A Screw Terminal Block, 4/5/6 Position Dual Row Covered, 400V Pre-Insulated Terminal Barrier Strips (6PCS 15A 4P/5P/6P+6PCS Wiring Strips)

KERWINN 15A Screw Terminal Block, 4/5/6 Position Dual Row Covered, 400V Pre-Insulated Terminal Barrier Strips (6PCS 15A 4P/5P/6P+6PCS Wiring Strips) Cover
  • Material: The terminal block housing is made of high-strength PC material, offering excellent toughness and impact resistance. It is dustproof and scratch-resistant, effectively protecting internal wire connectors and extending their service life.
  • Protective Design: Each terminal is equipped with a transparent protective cover to prevent accidental contact or short circuits, enhancing operational safety.
  • Core Advantages: The double-row screw terminal structure supports direct connection of bare wires, avoiding wire clutter. The insulated terminal strip design neatly organizes signal and power lines, simplifying wiring processes and improving work efficiency.
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Circuit Breakers Miniature Circuit Breakers

KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 2Pole 20Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C20A)

KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 2Pole 20Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C20A) Cover
  • Product Name: AC circuit breaker, Model: DZ47N-63-2P, Rated voltage: 120V/240V AC, Number of poles: 2pole, Rated current:20A
  • Flame retardant thermoset shell, plus large interface, visualization window, the circuit breaker work at a glance
  • Safety: When the circuit is short-circuited can immediately trip, to protect the safety of the circuit, can be easily installed on the DIN rail.
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Circuit Breakers Miniature Circuit Breakers

KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 1 Pole 20Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C20A)

KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 1 Pole 20Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C20A) Cover
  • Product Name: AC circuit breaker, Model: DZ47N-63-1P, Rated voltage: 120V/240V AC, Number of poles: 1 pole, Rated current: 20A
  • Flame retardant thermoset shell, plus large interface, visualization window, the circuit breaker work at a glance
  • Safety: When the circuit is short-circuited can immediately trip, to protect the safety of the circuit, can be easily installed on the DIN rail.
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Electrical Boxes

KERWINN 6 Way Distribution Protection Box,ABS/PC Alloy Plastic Transparent Cover Circuit Breaker Box IP66 Waterproof Distribution Box with DIN Rail and Waterproof Connector

KERWINN 6 Way Distribution Protection Box,ABS/PC Alloy Plastic Transparent Cover Circuit Breaker Box IP66 Waterproof Distribution Box with DIN Rail and Waterproof Connector Cover
  • Product Name:Distribution Protection Box (HS-6-way), Size:200MM*65MM*100MM
  • High quality material: PC/ABS alloy plastic, durable, sealed firmly, not easy to deform. ip66 waterproof and dustproof, to ensure the safety of the circuit breaker.
  • Simple installation: visualization transparent window, observe the internal situation at any time. Equipped with guide rails inside, easy to use.
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Circuit Breakers Miniature Circuit Breakers

KERWINN DC Miniature Circuit Breaker 12V-110V Circuit Breaker 1Pole 10Amp Smart Circuit Breaker DIN Rail Mount for Battery Power Systems,Solar photovoltaic Systems(C10A)

KERWINN DC Miniature Circuit Breaker 12V-110V Circuit Breaker 1Pole 10Amp Smart Circuit Breaker DIN Rail Mount for Battery Power Systems,Solar photovoltaic Systems(C10A) Cover
  • Product name: DC circuit breaker, Model: LKB18Z-L-1P, Rated voltage: 12-110VDC, Number of poles:1pole, Rated current: 10A
  • Arc extinguishing system: DC miniature circuit breaker with built-in arc extinguishing magnetic field system, auxiliary arc extinguishing, safe and stable operation.
  • Safety: Capable of tripping immediately when the circuit is short-circuited to protect the safety of the circuit and can be easily mounted on a DIN rail.
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Outdoor Generator Transfer Switches

KERWINN Dual Power Automatic Transfer Switch 110V 63A Outdoor Generator RV Transfer Switch 50HZ/60HZ Generator Changeover Switch(2P)

KERWINN Dual Power Automatic Transfer Switch 110V 63A Outdoor Generator RV Transfer Switch 50HZ/60HZ Generator Changeover Switch(2P) Cover
  • Dual power automatic transfer switch, ATS level; CB pole, operating frequency: 50HZ/60HZ; rated operating current: 63A; rated voltage: AC400V, changeover time:
  • Installation: screw-fixed on the base plate, can't be mounted with guide rail. Noiseless operation, energy saving, simple operation
  • Complete protection function, with short circuit, lack of overload, undervoltage protection.
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Security Horns & Sirens

KERWINN Car Siren Horn 7 Tone with Microphone ,Alarm Horn Siren 12V 100W Emergency Amplifier with Mic PA Speaker System Loud Car Alarm Police Ambulance Fire Hooter Traffic Sound

KERWINN Car Siren Horn 7 Tone with Microphone ,Alarm Horn Siren 12V 100W Emergency Amplifier with Mic PA Speaker System Loud Car Alarm Police Ambulance Fire Hooter Traffic Sound Cover
  • Product name:Alarm Horn Siren with microphone, voltage: DC 12V, power: 100W, sound loudness: 120dB.
  • High-quality materials: ABS plastic shell + iron bracket, speaker metal frame with screw holes and base angle adjustable, easy to install!
  • Press and hold the left button to shout, each button corresponds to an alarm sound. Suitable for any 12V vehicles, such as cars, trucks, motorbikes, police cars, publicity vehicles, etc.
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Butt Terminals

KERWINN 5PCS 2Port Single-Sided Entry Insulated Multi Tap Connector 4-14 AWG, Electrical Splice Connector, Black Vinyl Coated, Dual-Rated for Copper and Aluminum Wires

KERWINN 5PCS 2Port Single-Sided Entry Insulated Multi Tap Connector 4-14 AWG, Electrical Splice Connector, Black Vinyl Coated, Dual-Rated for Copper and Aluminum Wires Cover
  • Unique Connection Design：The multi tap connector supports copper-to-copper, aluminum-to-aluminum, and aluminum-copper hybrid connections. The insulation design effectively prevents oxidation from direct contact between copper and aluminum wires. Compatible with various wire gauges (covers common household/industrial sizes), featuring hex screws for secure fastening and anti-corrosion lubricant pre-applied in ports, ensuring stable connections even under vibration or harsh conditions.
  • Product Advantages：The insulated cable connector is safer than traditional wing nut connectors, supports 61% wider wire range, handles high currents without overheating, and enables quick installation with a simple twist—ideal for repairs or installations.
  • Safety-Focused Material：This insulated multi tap connector has triple-layer protective housing: insulating layer + flexible buffer layer + wear-resistant coating. Offers IP68 dust/water resistance, withstands chemical corrosion, and delivers long time durability in construction sites or outdoor environments.
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Butt Terminals

KERWINN 6PCS 4 Port Single-Sided Entry Insulated Multi Tap Connector 4-14 AWG, Electrical Splice Connector, Black Vinyl Coated, Dual-Rated for Copper and Aluminum Wires

KERWINN 6PCS 4 Port Single-Sided Entry Insulated Multi Tap Connector 4-14 AWG, Electrical Splice Connector, Black Vinyl Coated, Dual-Rated for Copper and Aluminum Wires Cover
  • Innovative Interconnection Structure：The multi tap connector is compatible with multiple wire gauges(household/industrial wires), featuring hex screws + anti-corrosion lubricant design to resist vibration and loosening. Supports Cu-Cu, Al-Al, and Cu-Al hybrid connections, with insulation layers blocking metal oxidation risks.
  • Product Advantages: The insulated cable connector is doubles safety compared to traditional wing nut connectors, supports 62% thicker wires, handles high currents without overheating, and enables tool-free installation via hand-tightened screws—saving time and effort.
  • Protective Material: This insulated multi tap connector has triple-layer composite shell: insulating base layer + elastic buffer layer + wear-resistant outer shell. dust/waterproof, resistant to acid/alkali corrosion, and built for long-term durability in harsh outdoor environments.
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Circuit Breakers Miniature Circuit Breakers

KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 2Pole 40Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C40A)

KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 2Pole 40Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C40A) Cover
  • Product Name: AC circuit breaker, Model: DZ47N-63-2P, Rated voltage: 120V/240V AC, Number of poles: 2pole, Rated current: 40A
  • Flame retardant thermoset shell, plus large interface, visualization window, the circuit breaker work at a glance
  • Safety: When the circuit is short-circuited can immediately trip, to protect the safety of the circuit, can be easily installed on the DIN rail.
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Backup Monitors & Alarms

KERWINN Backup Alarm 12V-24V 110±3DB,Waterproof Beeper Backup Alarm for Trucks,forklifts,Van Heavy Equipment (reversing Alarms for Vehicles)

KERWINN Backup Alarm 12V-24V 110±3DB,Waterproof Beeper Backup Alarm for Trucks,forklifts,Van Heavy Equipment (reversing Alarms for Vehicles) Cover
  • This backup alarm will produce a strong backup, which will be louder in actual use, and can easily remind pedestrians to pay attention to safety.
  • This backup alarm is made of high-quality materials, which is sturdy and durable. Waterproof shell with epoxy embedded electronic equipment, long service life.
  • The back-up alarm can be automatically adjusted to the voltage range of 12-24V vehicles.
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Extension Cords

KERWINN Inline Power Switch with 15-ft 14AWG Cable Piggyback Plug(3-Pronged),Red LED Rocker Button,IP67 Waterproof Extension Cord with On/Off Switch, AC/DC 20A-125V / 16A-250V（15FT/14AWG）

KERWINN Inline Power Switch with 15-ft 14AWG Cable Piggyback Plug(3-Pronged),Red LED Rocker Button,IP67 Waterproof Extension Cord with On/Off Switch, AC/DC 20A-125V / 16A-250V（15FT/14AWG） Cover
  • Safety Protection:Our inline switch enables one-touch complete power shutdown , paired with an LED status indicator (illuminated for power on, off for complete power cutoff). This allows real-time monitoring of the device's power state, ensuring dual protection for energy efficiency and safety. Equipped with pre-drilled mounting holes and self-tapping screws, it can be easily fixed to walls or device sides.
  • Unique Design: Featuring a standard US 3-Prong Piggyback Plug, the rear of the plug integrates an independent socket, enabling direct daisy-chaining of additional devices. This solves the problem of limited wall outlets and supports simultaneous power supply for multiple devices.
  • IP67 Waterproof & Dustproof: Extension cords with professional-grade protection via PG11 sealed connectors and electronic component potting compound, this switch achieves an IP67 rating: fully dust-tight (Level 6) and submersible up to 1 meter deep for 30 minutes without water ingress. It withstands harsh conditions like heavy rain, high humidity, and dusty environments, ensuring reliable performance in challenging settings.
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Circuit Breakers Miniature Circuit Breakers

KERWINN 3 Pole Miniature Circuit Breaker,240V/480V AC Circuit Breaker, 20Amp Thermal Magnetic Trip Smart Circuit Breaker AC Disconnect Switch DIN Rail Mount (20A)

KERWINN 3 Pole Miniature Circuit Breaker,240V/480V AC Circuit Breaker, 20Amp Thermal Magnetic Trip Smart Circuit Breaker AC Disconnect Switch DIN Rail Mount (20A) Cover
  • Product Name:AC Circuit Breaker,Rated Voltage:240V/480V AC,Number of Poles:3 poles,Rated Current:20A
  • Flame retardant thermosetting shell, oversized interface, visualisation window, the work of the circuit breaker at a glance
  • Suitable for protecting AC circuits from overload and short circuit damage and infrequent switching of circuits, used in 50/60Hz AC power systems, residential buildings, office buildings, power distribution lines, etc.
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Circuit Breakers Miniature Circuit Breakers

KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 2Pole 16Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C16A)

KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 2Pole 16Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C16A) Cover
  • Product Name: AC circuit breaker, Model: DZ47N-63-2P, Rated voltage: 120V/240V AC, Number of poles: 2pole, Rated current: 16A
  • Flame retardant thermoset shell, plus large interface, visualization window, the circuit breaker work at a glance
  • Safety: When the circuit is short-circuited can immediately trip, to protect the safety of the circuit, can be easily installed on the DIN rail.
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Circuit Breakers Miniature Circuit Breakers

KERWINN 3 Pole Miniature Circuit Breaker,240V/480V AC Circuit Breaker, 40Amp Thermal Magnetic Trip Smart Circuit Breaker AC Disconnect Switch DIN Rail Mount (40A)

KERWINN 3 Pole Miniature Circuit Breaker,240V/480V AC Circuit Breaker, 40Amp Thermal Magnetic Trip Smart Circuit Breaker AC Disconnect Switch DIN Rail Mount (40A) Cover
  • Product Name:AC Circuit Breaker,Rated Voltage:240V/480V AC,Number of Poles:3 poles,Rated Current:40A
  • Flame retardant thermosetting shell, oversized interface, visualisation window, the work of the circuit breaker at a glance
  • Suitable for protecting AC circuits from overload and short circuit damage and infrequent switching of circuits, used in 50/60Hz AC power systems, residential buildings, office buildings, power distribution lines, etc.
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Circuit Breakers Miniature Circuit Breakers

KERWINN Miniature Circuit Breaker 500V DC Circuit Breaker 2Pole 125Amp din Rail Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C100A)

KERWINN Miniature Circuit Breaker 500V DC Circuit Breaker 2Pole 125Amp din Rail Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C100A) Cover
  • Product name: Non-polarity DC circuit breaker, model: DZ47NZ-125-2P, rated voltage: 500V, number of poles: 2 poles, rated current: 100A
  • The circuit breaker can be used for DC 500V, AC 100V or less; arc extinguishing system: DC miniature circuit breaker built-in arc extinguishing magnetic field system, auxiliary arc extinguishing, safe and stable operation.
  • High safety: It can trip immediately when the circuit is short-circuited to protect the circuit safety, and can be easily installed on DIN rail.
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Circuit Breakers Miniature Circuit Breakers

KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 1 Pole 10Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C10A)

KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 1 Pole 10Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C10A) Cover
  • Product Name: AC circuit breaker, Model: DZ47N-63-1P, Rated voltage: 120V/240V AC, Number of poles: 1 pole, Rated current: 10A
  • Flame retardant thermoset shell, plus large interface, visualization window, the circuit breaker work at a glance
  • Safety: When the circuit is short-circuited can immediately trip, to protect the safety of the circuit, can be easily installed on the DIN rail.
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Butt Terminals

KERWINN 5PCS 2Port Insulated Inline Splice Connector 2-14 AWG, Electrical Splice Connector, Black Vinyl Coated, Dual-Rated for Copper and Aluminum Wires

KERWINN 5PCS 2Port Insulated Inline Splice Connector 2-14 AWG, Electrical Splice Connector, Black Vinyl Coated, Dual-Rated for Copper and Aluminum Wires Cover
  • Multi-Gauge Compatibility & Durable Material: This inline splice connector supports wire sizes from 1/0 to 16 AWG, featuring dual-layer insulation (high-dielectric rubber + black vinyl) for wear resistance, anti-aging, and outdoor dustproof/waterproof protection, ensuring long-term stable use.
  • Aluminum-Copper Hybrid Safe Connection: This inline splice connector enables Al-Al, Cu-Cu, and Al-Cu hybrid connections, with built-in anti-oxidant lubricant and hex screw fixation to prevent oxidation and loosening, eliminating aluminum wire overheating risks and offering superior safety over traditional wing nuts.
  • Industrial-Grade High-Performance Design: Our inline splice connector is dual-port + soldering lug structure for quick through-wire splicing, equipped with smart pre-filled leak-proof technology, suitable for heavy-duty equipment like generators and welders.
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Circuit Breakers Miniature Circuit Breakers

KERWINN Miniature Circuit Breaker Box Cover,40A 400V Solar Panel Switch Outdoor DC Solar Disconnect Switch with DIN Rail Wiring Terminal and Waterproof Connector

KERWINN Miniature Circuit Breaker Box Cover,40A 400V Solar Panel Switch Outdoor DC Solar Disconnect Switch with DIN Rail Wiring Terminal and Waterproof Connector Cover
  • Product name: DC Circuit Breaker Box, Current: 40AMP, Voltage: 400V.Suitable for the protection of distribution facilities against overloads and short-circuit damage
  • High quality material: PC/ABS alloy plastic, durable, firmly sealed, not easy to deform.IP65 waterproof and dustproof to ensure the safety of the circuit breaker.
  • Simple installation: visualization transparent window, observe the internal situation at any time. Equipped with guide rails inside, easy to use.
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