RSD Series AC DC Solid State Relay

Features

Designed with 1 N/O SPST DC output.

With long service life, no contact, no spark.

Having MOSFET output, fast switching response.

Equipped with imported optocoupler isolation.

Owning wide control voltage range and LED indicator.

Available in optional IP20 protective cover and panel mounting.

Widely used in DC heating, DC power supply, DC valve, DC motor, and etc.

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Current level selection:

Considering the load surge current and relay overload capacity, to make the relay work with long life and high reliability, it is recommended to select the current magnification corresponding to the load type in the table below.

Load type	Resistance	Electric heating wire	Incandescent lamp	transformer / electromagnet	Motor
Power factor	1.0	0.7	0.5	0.4	0.2
Magnification	1.5multiple	2multiple	2.5multiple	4multiple	7multiple

Note:

1. Please be sure to set fuse, air circuit breaker and other protective equipment on the power side to prevent short circuit.
2. When connecting inductive load, be sure to reverse parallel freewheeling diode at the load end (see “Terminal configuration and wiring diagram” for specific connection method)!
3. M5 screw and spring washer are used with 2N.m torque. After 3 hours of use, tighten it once with the same torque. To ensure the close contact and firm installation between the base plate of the solid-state relay (hereinafter referred to as the product) and the heat sink.
4. The product wiring shall be standard wire, and the cross-sectional area can be selected according to 5-8A per square millimeter. The terminal shall ensure that the wiring is firm. Loose wiring will lead to abnormal heating and damage to the product. In case of high temperature and high humidity environment, conductive compound shall also be coated on the connection part.
5. The input terminal is standard M4 screw, and the wiring tightening torque is (1.2-1.4) N.m. the output terminal is standard M5 screw, and the wiring tightening torque is (1.5-1.8) N.m.
6. Please do not connect the current above the rated specification. Otherwise, it may cause abnormal heating of the product.
7. Do not apply voltage exceeding the rated value on the input circuit and output circuit, and pay attention to the wrong connection of positive and negative polarity, otherwise the product will fail or burn.
8. Requirements for installatio: it shall be installed vertically on the chassis with good ventilation conditions, and make full use of the heat dissipation conditions of air convection.When two or more products are installed side by side, an appropriate large gap shall be reserved.
9. When the ambient temperature of the product is high, please refer to “Performance curve” to check the current temperature curve for derating. When it exceeds 60 ℃, air cooling is needed to ensure that the temperature of the product bottom plate does not exceed 80 ℃.
10. Before installation, maintenance and other operations, be sure to cut off the power supply in case of electric shock!

Characteristics:

Input parameter（Ta=25℃）:

Control voltage range	4~32VDC
Must turn-on voltage	4VDC
Must turn-off voltage	1VDC
Control current range	6~20mA

Output parameters(Ta=25℃):

Part No.	RSD-1D06XXD					RSD-1D10XXD					RSD-1D20XXD
Load voltage range	7-48					7-75					7-120
Maximum load current(A)	20	40	60	80	100	20	40	60	80	100	20	40	60
Maximum surge current(Apk,@10ms)	110	160	200	260	300	90	140	180	220	280	80	160	200
Maximum PWM(Hz) ★	900	700	700	500	500	900	600	600	400	400	800	600	400
Maximum conduction voltage drop(V)	≤1										≤1.2
Maximum off-state leakage current(mA)	≤0.3
Minimum load current(mA)	≥2
Maximum conduction time(ms)	1
Maximum off time(ms)	1

Other parameters（Ta=25℃）:

Dielectric withstand voltage (50/60Hz)	Between Input and Output	2500Vrms
	Input/Output to base	2500Vrms
Insulation resistance(@500VDC)	1000MΩ
Operating temperature range	-30℃~+80℃
Storage temperature range	-40℃~+100℃
Operating ambient humidity range	5～85%HR
Cooling mode	Install the heat sink and add fan-forced cooling when the temperature exceeds 60℃
Weight Approx	90g
★ Note: For the PWM rating, a voltage of at least 8 Vdc must be applied to the control input.