One such advantage is that they can be switched by a much lower voltage and at a much lower current than most mechanical relays, and since there are no moving contacts, solid state relays can be switched much faster and for much longer periods without wearing out.Solid State Relay 40A
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The Solid State Relay – SSR-40DA allows you to control high curent AC loads from lower voltage DC control circuitry. Solid state relays have several advantages over mechanical relays.
One such advantage is that they can be switched by a much lower voltage and at a much lower current than most mechanical relays, and since there are no moving contacts, solid state relays can be switched much faster and for much longer periods without wearing out.
Solid State Relay 40A
This particular Solid State Relay can switch current loads of up to 40A with a 3-32V DC input and a zero cross trigger control method. Each one of these relays is equipped with four screw terminals (for use with ring or fork connectors) and a plastic cover that slides over the top of the relay to protect the terminals.
40 amps solid state relay (SSR) features high structural strength, good impact resistance, and strong shock resistance. The SSR offers a reliable switching the commercial and industrial loads, such as computer peripheral interface device, printing machine, molding machine, food machine, packaging machine, and so on.
Solid State Relay 40A
Built in RC absorption
Photoelectric isolation
SCR output
LED indicator for operation status
Removable protective cover for safety
Panel mount
Zero-crossing switch type
Features:
Solid State Relay 40A
Trigger Current: 7.5mA/12V
Control Voltage: 24-380V AC
Input Voltage: 3-32V DC
Zero Cross
Note:
* When the load current is higher than 10A, a heat sink must be added to the SSR or the SSR should be mounted on a metal base plate with heat dissipation effect, and apply the thermal grease between them. When the load current is higher than is 40A or more, fan forced cooling or water cooling is needed.
* Heat Sink for Single Phase SSR
Material: Aluminum
Mounting Size: Mounting hole diameter - 3mm, threaded hole distance - 48mm
Dimension: 125*70*50mm (L*W*H)
Weight: 250g
Application: Less than 40A single phase solid state relay
Tips: Why does SSR has advantages over EMR?
Solid state relay (SSR) is a new type of non-contact switch composed of solid state electronic components, and achieve the purpose of connecting and disconnecting circuits without contact and sparking by virtue of those electronic components (such as switching transistors, triacs and other semiconductor components). Therefore, it is also known as non-contact switch.
Compared with the previous Electromechanical Relay (EMR), the SSR has no moving mechanical parts and no mechanical actions during its operation. It has advantages over EMR, such as fast response, high reliability, long life (SSR’s on-off times are a hundred time more than those of average EMR by 106 times), no noises, shock-proof, mechanical shock resistance, good moisture-proof and mildew-proof, anti-corrosion characteristics. These features make SSR widely used in military science, chemical industry as well as various industrial and civil electric control devices.
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