SHUYI SSR-40DD single phase potentiometer controlled solid state relay

It is a non-contact switching device with relay characteristics that uses semiconductor devices instead of traditional electrical contacts as switching devices. Single-phase SSR is a four-terminal active device, in which two input control terminals, two output terminals, and light between input and output. Isolation, when the input terminal adds a DC or pulse signal to a certain current value, the output terminal can be converted from an off state to an on state


Additional information

Brand Name


Model Number


Contact Load

Low Power, various

Output Current

5A to 600A


Small volume and dimensions

load current safety factor

actor: inductive load 30%-40%


General Purpose, various usage

SHUYI SSR-40DD single phase potentiometer controlled solid state relay

Solid State Relay(abbreviated SSR), is a non-contact switch composed of microelectronic circuits, discrete electronic devices, and power electronic power devices. The isolation between the control end and the load end uses photoelectric coupling or pulse signal. The input end of the solid state relay uses a tiny control signal to directly drive a large current load.


In addition to the same functions as electromagnetic relays, solid-state relays also have logic circuit compatibility, vibration resistance and mechanical shock resistance, unlimited installation positions, good moisture-proof, mildew-proof and corrosion-proof performance, and excellent performance in explosion-proof and ozone pollution prevention. , The input power is small, the sensitivity is high, the control power is small, the electromagnetic compatibility is good, the noise is low and the operating frequency is high. The solid state relay dedicated to the solid state relay can have the functions of short circuit protection, overload protection and overheat protection, and the combination logic curing package can realize the intelligent module required by the user, which can be directly used in the control system. Solid state relays have been widely used in computer peripheral interface equipment, constant temperature systems, temperature regulation, electric furnace heating control, motor control, numerical control machinery, remote control systems, industrial automation devices; signal lights, dimming, flashers, lighting stage lighting control systems; Instrumentation, medical equipment, copiers, automatic washing machines; automatic fire protection, security systems, and power capacitor switches used as power factor compensation for power grids, etc. In addition, there are a large number of explosion-proof, moisture-proof, and anti-corrosion occasions in chemical industry, coal mines, etc. use

Duration Estimation

Pls kindly note, it’s important to know the duration of of the whole order process.

Exist sample lead time

For the hot sale model and supplier standard model products, generally they have samples in stock, so you can require a sample quickly and easily. Send the sample request, supplier ship out the samples in 1-3 days by express, you will receive the samples in 7-30 days.

Custom sample lead time

Custom sample lead time depends on your specific requirements and products.OEM packag, such as paper box packag, it’s easy for any suppliers to do it, if you need exist product in custom packag, it takes 4-7 days will be ok.

Production lead time

It depends on the order quantity. The production lead time refers to the number of days required by the factory. After receiving the order, the entire production is completed and ready for shipment. Most of the product supply takes 15-30 days.

Shipping time

There are different shipping ways for options. Air shipping is fast but expensive, it’s a good choice for urgent orders, it only takes 7-10 days max. Sea shipping is the most economical shipping way, time is much longer than air, takes 20-30 days.

Inventory& Low MOQ Support


20,000 square meters warehouse, plenty inventory and well managed.

One Stop Solution

Inventory includes, micro switches, limit switches, travel switches, foot switches, toggle switches, solid state relays,


For retailers, we accept small orders. We thiank this is really good for you

Price Advantage

For distributors, buy in bulk can get a better price. Save purchasing costs for you.



is not responsible for weather delays or other carrier issues.


Standard ground transportation of inventory items takes approximately 2-7 working days. Except for national holidays, shipments are only available from Monday to Friday. The quantity of all products determines the shipping carrier.


FedEx 2nd and Next Day Air Orders typically ship the first business day after an order is placed.Deliveries are only made Monday through Friday. No deliveries will be made on weekends or holidays. Please note that per FedEx policy not all areas are guaranteed to receive overnight deliveries. Carriers may only count business days for 2nd day delivery dates. 


Products are shipped by freight and usually leave the warehouse within 3-5 days. Our order volume is very large, and our warehouse is working hard to process the order as soon as possible. thank you very much for your patience. For more information about our shipping policy, please see below.

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Enter your request below and send it to us, and we’ll get back to you ASAP!