The input control terminal and the load power circuit are designed with optical isolation, providing fast response.
The output uses a bidirectional thyristor (triac) with zero-current turn-on and zero-current turn-off.
Fully solid-state encapsulation ensures no mechanical contacts, no sparks, no noise, and high vibration resistance, offering a long service life.
Equipped with a linear compensation function, the output follows a linear characteristic curve. An internal RC snubber suppresses harmonic interference, resulting in strong anti-interference capability.
It has a strong tolerance for power supply voltage variations and can operate reliably over a wide voltage range.
Solid state relays have been widely used in many fields: control of electric heaters, lighting equipment, packaging machinery, motor drive, color expanding equipment, injection molding machinery, air conditioning temperature control, mechanical numerical control, petrochemical instruments, industrial automation devices, intermediate relays, solenoid valve control.
Frequently Asked Questions
QWhat is a Solid State Relay (SSR)?
A Solid State Relay is an electronic switching device that switches states when an external voltage is applied across its control terminals. Unlike mechanical relays, it has no moving parts, resulting in a much longer service life and quieter operation.
QWhat are the main advantages of optical isolation in this SSR?
Optical isolation effectively separates the input control terminal from the output load power circuit. This protection prevents electrical noise and surges from transferring to the control system, ensuring safe operation and fast switching response.
QDoes the SSR support zero-current switching?
Yes, the output features a bidirectional thyristor (triac) designed for zero-current turn-on and zero-current turn-off, which significantly minimizes transient surge currents and electromagnetic interference (EMI).
QWhat load currents are supported by your Solid State Relays?
Our SSR models support a wide range of load currents, specifically: 10A, 25A, 40A, 60A, 80A, 100A, 120A, 150A, 200A, 250A, 300A, 360A, and 400A under AC or DC power supplies.
QHow does the SSR perform in environments with high vibration or noise?
Due to its fully solid-state encapsulation and lack of mechanical contacts, this SSR operates silently, produces no physical sparks, and offers superior vibration and shock resistance.
QDoes this Solid State Relay have anti-interference capabilities?
Yes, it is designed with an internal RC snubber to suppress harmonic interference and possesses linear compensation features, making it highly reliable under unstable voltage conditions.
UniWave Electric
