Detailed Product Description

PRINCIPLE OF SOLID STATE RELAY
With combining modern micro-electronic with electric power technic , it is a new
non-contactor  electronic switch in the logic control circuit , similar with electric-magnetic
relay, it can switch on or off a circuit under the control of a trigger-signal.


CHARACTERISTIC
SSR is a contactless switch compromising of SOLID STATE components,its Feature:ate,hig-reliability,contactless,non-speark,non-pollutant,excellentsulation&
withstanding high voltage(2.5KV), speed switch-over, and can match for digital-circuit.
With sealing with fireproof epoxy, so it is of withstanding voltage, moistureproof,
antisepsisand aseismatic and so on.
   SSR will be conductive when the voltage is zero. And will cut off when the polential
is zero, Can get a full sine wave on the load. Therefore the radio interfere
from circuit is very little, so can lower the counter electromotive force from
the inductancing load(e.g.fan, 3-phase motor etc.) ,and can lower the surge-current
when drive the inductancing load(e.g.incandescent lamp)


BASIC FEATURES OF SSR
It is input signal can be compatible with both of computer terminal and digital logic
circuit.
Design space 160% face-mount technic.
Electric switch-life 6*107  times.
Two trigger model: over zero trigger, random  trigger.
LED indicates work-state.
Build in a absorbing circuit of resistor-capacitor.
According on request, can be used for 3-phase or can increase scarcity phase protection.
Working environment: -20 C-80 C.
Acting responding-time:ON<10ms/off.


 

SAGE APPLICATION OF SSR 
   The terminal from screw of SSR series SOLID STATE RELAYS, is of high strength,
impact-resistant, anti-vibration, little input current can make it contact with
computer terminal or digital control circuit, and widely used in all kinds if field
e.g.inst rument,dmachinery,digital-control machine tool and  automatizating-equipment
,and it is a subsitiute of AC & DC contactor.
   Especially it can be used for pollutant, humid, atrocious environment and occasion
that turn on-off continually.


CAUTIONS FOR OPERATION
1. Load current cant not  exceed 60% of rated current in resistive-load circuit.
2. Load current can not  execeed 40% of rated current in inductie or capacitve-load
circuit.When it is use to control inductive load, must consider the startup of
the load: because the inductive load must bear a 6-time of anti peak value voltage.
3. When a current pass the SSR, the SSR will have a voltage-lower, soit will generate
a joule-heat, especially a larger current, it needs a radiator when the current
is 10A, while the current is larger than 40A, it needs water-cooling or fan-cooling.
4. Overcurrent or short-circuit will result in apermanent damage for the controlle
d silicon of SSR, therefore must have a fast-acting fuse devic, or circuit-breaker.
5. Can parallel connecte a voltage-sensitivity resistor(piezoresistance)for over
voltage protection.The voltage-sensitivity resistor also can be built in SSR as
requested.