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.
  

The Maxwell MS-1DA48 series is a high-performance, single-phase DC to AC solid state relay designed for reliable and efficient switching in demanding industrial environments. Featuring a wide control input range of 3.2–32VDC and a robust load voltage capacity of 24–480VAC, this panel-mount relay is engineered to seamlessly interface with microcontrollers, PLCs, and other low-voltage logic devices. It utilizes advanced zero-crossing trigger technology and incorporates a built-in RC snubber across all amperage ratings, ensuring noise-free operation and superior protection against transient voltage spikes. Housed in a compact, fire-retardant ABS enclosure and completely sealed with resin for maximum isolation, the MS-1DA4840 series guarantees exceptional durability and safety in harsh environments. With load current options ranging from 10A to 120A, it is the ideal solution for precise control in heating systems, plastic machinery, HVAC, and various automated industrial processes. All models comply with CE, CCC, and RoHS standards.

● For resistive load only
● Single phase solid state relay
● DC input AC Load
● 24~480Vac load
● 10/25/40 amps, three options
● Zero-crossing trigger

● Industrial type solid state relay
● Single phase
● DC 3.2-32V input
● 24~1200Vac load
● From 60 amps all the way up to 1000 amps
● Zero-crossing trigger

● Industrial type solid state relay
● Single phase AC input AC load
● 90~280Vac input
● 24~1200Vac load
● From 60 amps all the way up to 1000 amps
● Zero-crossing trigger