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 PIDMaxWell SSR-F-4DA-H is an industrial-grade single-phase AC solid state relay with a built-in replaceable 32A fuse, designed for high-safety temperature control and automation applications.

It features a wide 4-32VDC control voltage, perfectly compatible with mainstream PLCs and PID controllers, and a 90-480VAC load voltage with a 6A rated load current. The transparent anti-shock protective cover prevents dust and accidental contact while allowing easy visual inspection of the fuse status. Supports 35mm DIN rail mounting and panel screw fixing for quick installation. Ideal for injection molding machines, CNC equipment, electric furnace temperature control, and packaging machinery.

The PIDMaxWell KSK600D25 is a high-performance single-phase solid state relay (SSR) designed for reliable switching of AC loads in industrial automation and power control systems. With a wide 4-32VDC control voltage and 24-660VAC load voltage range, it delivers stable performance across diverse applications. The 25A rated current and 800Apk surge current capability ensure safe handling of inductive and resistive loads. Featuring 4000Vrms dielectric strength, CE & cULus certification, and a compact DIN rail mountable design, the KSK600D25 is an ideal solution for industrial heating, CNC machinery, motor control, and commercial lighting systems.

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.

The Maxwell MS-1AA4840 series is a robust and highly reliable single-phase AC to AC solid state relay engineered for demanding industrial control applications. Designed with a wide control input range of 90–280VAC and a versatile load voltage capacity of 24–480VAC, this panel-mount relay ensures seamless integration into diverse electrical systems operating at 50/60Hz. It features advanced zero-crossing trigger technology and a built-in RC snubber across all amperage ratings, providing exceptional protection against transient voltage spikes and ensuring noise-free, fast-response operation. Housed in a compact, fire-retardant ABS enclosure and completely sealed with resin for maximum isolation, the MS-1AA4840 series guarantees long-lasting performance 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.

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.

● 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

● Single phase solid state relay
● 3-32VDC input
● 24~480Vac load
● From 10 amps up to 100 amps
● Zero-crossing trigger
● Fotek style, low cost

The JX-1DA48 (black flip-cover housing) and KT-1DA48 (grey housing) are single-phase, DC-controlled AC solid state relays designed as direct-fit, cost-effective alternatives to Omron G3NA-style SSRs. Both variants share identical electrical specifications and the same compact physical footprint, differing only in housing style and colour.

Accepting a DC control voltage of 3.2–32 VDC, these relays are directly compatible with PLC transistor outputs, microcontroller I/O, and standard industrial DC control signals. The AC load side supports 24–480 VAC at 50/60 Hz, covering 110 V, 220 V, 380 V, and 480 V systems worldwide. Load current ratings of 10 A, 25 A, and 40 A are available, with all three ratings sharing the same physical dimensions for easy interchangeability.

Zero-crossing trigger technology ensures switching occurs at the natural zero-crossing point of the AC waveform, minimising EMI and extending load service life. A built-in RC snubber circuit is incorporated across all three current ratings, providing additional protection against voltage transients without requiring external components. The 10 A, 25 A, and 40 A models all use a TRIAC output stage, offering reliable bidirectional switching. An LED status indicator provides instant visual confirmation of relay activation. The panel-mount housing includes a protective cover (JX-1DA48) for added terminal protection. Private label and custom logo laser printing are available on request.

● 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

MS-1DA4825-MINI is an AC output panel mount type SSR. Input of this SSR is 4-20mA, load is 25 amps 480Vac, between input and output with dielectric strength 2500V . This mini SSR is epoxy resin encapsulated, this product is perfect for coffee machine, espresso machine, easy to install with a fasten terminal design

The MKD2 Series is a single-phase, dual-channel, DC-controlled AC solid state relay (SSR) designed for reliable, silent switching of resistive and inductive AC loads in industrial and commercial control systems. Each unit houses two independent switching channels within a single compact black housing, enabling two separate AC loads to be controlled simultaneously from a single device — saving panel space and wiring time compared to installing two separate SSRs.

The MKD2 accepts a DC control voltage of 4–32 VDC, making it directly compatible with PLC outputs, microcontroller I/O, and standard industrial control signals. The AC load side supports voltages from 24 to 480 VAC, covering 110 V, 220 V, 380 V, and 480 V systems worldwide. Load current ratings of 25 A, 40 A, 60 A, and 80 A are available, with all variants sharing the same physical footprint for easy interchangeability.

Zero-crossing trigger technology ensures that switching occurs at the natural zero-crossing point of the AC waveform, minimising electrical interference (EMI) and extending the service life of both the relay and the connected load. Individual LED status indicators for each channel provide instant visual confirmation of relay state, simplifying commissioning and fault-finding. The unit is CE certified and constructed from fire-retardant ABS with a dielectric strength of 2500 Vrms between input, output, and base.

FL-SSR is a DIN rail mount solid state relay , DC input AC load version, heatsink integrated with SSR, available with 10A, 25A, 40A, 55A.

● Three phase solid state relay
● 3-32Vdc input
● 24~480Vac load
● From 10 amps up to 200 amps
● Zero-crossing trigger