RHA Enhanced Solid State Relay/Single Phase SSR ? ? RHA Series Enhanced Solid State Relay: ? Use of two single phase SCR enhanced communication control mode, under the condition of the?same power,the chip area is twice as large as, so that improve Performance Indicators,such as SCR?load capacity, impact of voltage and current conduction time and etc,and the area of the chip and?heat sink also doubled.Compared with the normal type,SCR TRIAC of RHA solid state relay is greatly improved on reliability,?service life and load capacity. ? ? 1) Using photoelectric coupling isolation, compressive strength can reach 2kv?between the input - output - fin.
2) Zero-cross activation,to avoid high-frequency interference when on \ off.
3) RC filter circuit can absorb instant surge to avoid malfunction to protect the chip.
4) RHA SSR adopt 2 signal phase reverse parallel SCR to constitute enhanced control mode.
5) RHA SSR adopt large volume chip welding technology with advantages of large loading?allowance and high coefficient of heat transfer, etc
6) The input applied constant current circuit to ensure the constancy of current consumption
between 6 ~32 v. ? ? ? ? ? ? ? ?

Model	SCR	Control signal	Activation type	Critical voltage raising rate	Rated current
RHA-25A400	Signal SCR reverse parallel (enhanced)	6-32VDC	Zero-cross activation	1000V/μs	25A
RHA-40A400					40A
RHA-60A400					60A
RHA-80A400					80A

? ? ? ?

Compression strength?input-output	≥500MΩ
Insulation strength?input-output	2000Vrms
Input control range	6~32Vdc
Input current	≤10mA(DC)
Minimum trigger voltage	≥4.5Vdc
Minimum open-circuit voltage	≤3Vdc
Material	PC+retardant
Output rated current(Arms)	25,40,60,80A AC
Off-state leakage current(Max)	≤10mA AC
Voltage	24~400VAC
Peak voltage	800Vp
Closed saturated step-down	1.8V/25oC
Action response tim	ON<10ms , OFF<10ms
ON<10ms , OFF<10ms	-20oC~80oC / -40oC~100oC

? ? ? ? ? Heating control ? ? ? Signal Phase AC Motor Positive and Negative Rotation Control ? The time between the positive and negative rotation must be bigger than 20ms. Current-limiting resistance Rs= 30/Issr Issr is the current level of the SSR which users choose. NOTE It can ensure the thermal conductivity without impurities by using a gram of thermal grease to paint on metal surface of heat sink. Tightening up the 2 nuts in turn,the M4 nut torque of 1.2 NM , the M5 nut torque of 0.75M. It is suggested to disassemble and check whether the installation is correct, to ensure no bubbles between the metal coating and? heat conduction layer. ? ? ? ? ? ? ?