DC Input AC Load 3 Phase Solid State Relays

● Three phase solid state relay● 5-32Vdc input● 24~480Vac load● only available with 10/25/40 amps● Zero-crossing trigger● For resistive load only

● Three phase solid state relay● 90~280Vac Input● 24~480Vac load● From 10 amps up to 200 amps● Zero-crossing trigger

The MaxWell MS-3DA4880 is a heavy-duty 80A Three-Phase Solid State Relay (DC to AC), designed for reliable control of 24-680VAC loads. This ready-to-use kit comes fully pre-assembled with a customized heavy-duty aluminum heatsink and a high-velocity cooling fan, ensuring optimal thermal management and continuous operation under heavy loads. Featuring advanced Back-to-Back SCR technology, Zero-Crossing switching, and a built-in RC snubber circuit, it delivers superior surge protection, minimal EMI, and long-term stability. Ideal for industrial heaters, HVAC systems, and plastic machinery, it is CE certified, fully resin-sealed for 3500V high isolation, and engineered for plug-and-play safety and performance.

PIDMaxWell MS-1DA4880 | 80A DC to AC Solid State Relay with Heatsink & Fan The MS-1DA4880 is a high-performance single-phase solid state relay (DC to AC) pre-assembled with a heatsink and cooling fan, ready for immediate use. Key Specs: 80A rated current, 24~480Vac load voltage, 3.2~32Vdc control voltage. Reliable Design: Zero-crossing trigger, built-in RC snubber, and completely resin-sealed for high isolation (≥3500Vrms). Safe & Quiet: Fast response, no switching noise, and equipped with a transparent terminal cover for safety. Easy Installation: Pre-installed cooling system saves time and labor.

● MW-DT-50● Size:50mm*100mm*96mm● Heatsink for 60A SSR● Panel mount and Din rail mount with clamps● Aluminum heatsink● For single phase SSR

The MWH300F-692 is a versatile dual-mode intelligent controller supporting both PID temperature control (thermocouple/RTD) and SCR process control (analog voltage/current). It features real-time 3-phase current/voltage monitoring, a bright dual-row digital display, and comprehensive safety protections including over-temperature, over-current cut-off, heater break/short alarm, and 3-phase unbalance detection. With RS-485 communication, PID auto-tuning, and a rugged industrial design, it ensures precise and reliable performance in harsh environments.  

The Maxwell MS-1DD60 series is a high-performance, single-phase DC to DC solid state relay designed for reliable switching in demanding industrial applications. Featuring a wide control input range of 5–32VDC and a load voltage rating of 60VDC, this compact panel-mount relay utilizes advanced MOSFET triggering technology to ensure fast response times and noise-free operation. With load current options ranging from 10A to 120A, the MS-1DD60 series is engineered with a uniform physical size across all models, simplifying installation and system design. Its robust black housing and integrated LED process indicator make it an ideal choice for precise control in small heating applications, valve control, and other inductive or resistive loads. All models comply with CE and RoHS standards, ensuring suitability for global industrial deployment.

CH102, CH402, CH702, CH902 is a very popular controller on the markets, comes with relay and SSR Drive output, relay and SSR Drive output at the same time, faciliated wiht different terminals, if you want to use the relay output, then connect your AC contractor or SSR with the relay output terminal, if you want to use SSR drive output, then connect your solid state relay with SSR Drive output terminal, with 1 alarm and works on wide range of power supply, works with thermocuple and RTD inputs despite the cost being very competetive.