APT50SCE120B

Series:	*
Part Status:	Obsolete

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APT50SCE120B application field and working principleAPT50SCE120B is a high-quality, low-cost Plug‑in type Solid State Relay (SSR). It is widely used in automated manufacturing control, security systems, telecommunications, medical and health care, lighting control, power control, fire control, industrial automation, and household appliances.SSRs are switching devices that use a non-mechanical solid-state component to switch electrical power, rather than a mechanical relay with solid contacts. As a result, SSRs have longer lifetimes, higher reliability, and fewer problems than conventional mechanical relays. The APT50SCE120B is a type of single-phase plug-in SSR with a rated input signal voltage of 4~32VDC and a rated load current of up to 50A.The APT50SCE120B is composed of a pair of MOSFETS (Metal Oxide Semiconductor Field Effect Transistor) that pass the electrical current through the SSR’s output without the use of physical contacts. The operation is based on a current-detecting principle, with a series-connected internal resistor. A MOSFET is electrically connected directly to the control circuit by a voltage signal or current. When a control signal is applied, it causes the MOSFET to turn on, allowing current to flow through the SSR, thus causing the load to turn on. The APT50SCE120B has numerous useful features, such as its wide voltage range, fast switching speeds, low on-state resistance, high insulation resistance, and long lifetime. This SSR is also widely used in AC motor control applications in alternating current (AC) circuits. In addition, the APT50SCE120B is designed with a radiated noise suppression circuit that ensures a low-noise operating environment and greatly reduces the Motor noise associated with switching AC power.This SSR is designed to meet both Europe Emission Standards C81000-1 and Safety Standards EN60950-1 with RCs (Reduced Current Start). It is also compliant with UL safety standard UL50E and RoHS (Restriction of Hazardous Substances).The APT50SCE120B is very versatile and easy to install, with a reliable and robust metal housing and protective cover that ensures it can be used in any kind of environment. It is also heat-resistant and suitable for operation in temperatures ranging from -40°C to +85°C. Furthermore, it has a variety of built-in protection circuits, such as an Over Voltage Protection (OVP) circuit to protect against momentarily higher voltage applied to the LEDs, a Shutdown (STOP) circuit to protect against sudden current increases, and a Ground Fault Protector (GFP) to protect the SSR from electrical faults.In conclusion, the APT50SCE120B is a reliable and efficient plug-in type SSR, suitable for a variety of applications. Its numerous features make it an optimal choice for various types of industrial applications. It has a high load current rating, fast switching speeds, long lifetime, and easy installation, making it the ideal choice for controlling any AC motor control system.

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