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⚡ Power up your peace of mind with seamless switching!
The KERWINN Mini ATS Automatic Transfer Switch is a 100 amp, 220V dual power selector designed for DIN rail mounting. Featuring industrial silver contacts and automatic switching, it ensures reliable power transfer between main and backup sources. Compact and robust, it supports critical applications in urban infrastructure and commercial settings, delivering durable, maintenance-friendly performance.







| ASIN | B0C2KKGNP9 |
| Actuator Type | Rotary |
| Best Sellers Rank | #123,780 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #115 in Selector Switches |
| Brand | kerwinn |
| Brand Name | kerwinn |
| Circuit Type | 2-way |
| Color | Silver |
| Connectivity Protocol | Din |
| Connector Type | Screw |
| Contact Material | Silver |
| Control Method | Touch |
| Control Type | automatic |
| Current Rating | 100 A |
| Customer Reviews | 4.2 out of 5 stars 93 Reviews |
| Manufacturer | KERWINN |
| Material Type | Silver |
| Model | DPS-4P-100A |
| Mounting Type | DIN Rail |
| Number of Items | 1 |
| Number of Positions | 4 |
| Operating Voltage | 220 volts |
| Operation Mode | Automatic |
| Part Number | DPS-4P-100A |
| Switch Type | Rotary |
| Terminal | Screw |
| Unit Count | 1 Count |
| Wattage | 22000 watts |
M**A
Excelente funcionamiento y confiabilidad
Realiza la transferencia de energía de forma rápida y suave. Muy fácil de conectar e instalar, ideal para mantener los equipos respaldados sin interrupciones
Y**.
Great miniATS
Working very well with 240v everywhere. Easy to install. I used it to change the connection from my solar panels to either my inverter's inputs or outputs, so I used it backwards: the solar panels connect to this miniATS' output and this miniATS' utility input is connected to the inverter's utility input and this miniATS' generator input is connected to my inverter's output. So depending on utility availability the solar panels output are switched to either help the loads OR help the loads and charge the battery through the bidirectional inverter output. Excellent value for the money.
L**O
Producto funcional
Este producto lo compre porque necesitaba realizar cambios en la corriente y si tienes la necesidad de cambiar de circuito sin necesidad de pararte este es el producto adecuado
G**Y
Grid side (Blue) coil burnt up in 10 cycles on test rig.
DO NOT USE! I am Biomedical Electronics Technician. My home is on solar. To load shed I bought these transfer switches. I built a test rig with no load to test the transfer switch before installing. The Gen side switched as expected but would not switch back to Grid side once the Grid side was re-energized. I swapped the inputs to make sure the sources were not the problem. Same result. I opened the unit to see the problem for myself. I know this voided my warranty and my ability to return for a refund but I wanted to know WHY this was happening. When I opened the unit I found what I expected and relay and push/pull solenoids. I cycled the souce power as before and the Grid side would not switch back. After the 9th test cycle the Gen side started oscillating and would only cycle half way then snap back. I shut off power and checked my source inputs and all checked 100% with multimeter. I manually cycled the transfer switch to see if was just bound. When I switched back to auto and energized the Gen side the blue solenoid coil melted and smoked badly. There was a short circuit flash and the relay cooked as the isulation burned off the coil. I have bought four of these types over the last few years off of ebay with different brand names but same manufacturer as they are identical mechanically and electronically. The coils either fail immediately or never work out of the box. I still use the transfer switch manually and it is robust and functions great. I read the comments saying this unit was much improved and took a chance. Bottom line - The electronics in my opinion are insufficient for the load being applied.
L**S
Bueno y barato!!
Exelente, tener la precaución que colocar un controlador de baja tensión para el retorno de la red, ya que con baja tensión se quema la bobina de retorno
M**N
It doesn't work as it should
It won't switch to source A automatically
E**R
Great product
This work fine switching between solar power and grid power.. remember this is for 220V.
F**S
Calidad y buen precio!
Excelente producto! Definitivamente ha llenando mis expectativas, buena calidad, y buen precio. No dudaría en comprarlo nuevamente.
Trustpilot
2 weeks ago
5 days ago