KSD(037) Series Single-Phase AC Output Solid State Relays
Product Description
The KSD(037) series comprises normally open single-phase AC solid-state relays designed for various control applications. These relays feature a control voltage range of 15~32VDC or 4~32VDC, and can handle load voltages of 240VAC, 380VAC, or 480VAC with a load current of 5A. They are suitable for applications such as lighting control, motor control, and solenoid valve operation.
Key Features:
- Load Current: 5A
- Control Voltage: 15~32VDC, 4~32VDC
- Load Voltage: 240VAC, 380VAC, 480VAC
- Dielectric Strength: 4000Vrms
- Output Type: SCR Output
- Compliance: RoHS Compliant
- Circuitry: Built-in RC Absorption Circuit
- Mounting: PCB mounting type
Product Selection
The model naming convention for the KSD(037) series is structured as follows: KSD [Load Voltage] [Triggering Type] [Load Current] [-Control Type] [(037)]
| Series | Load Voltage | Triggering Type | Load Current | Control Type | Housing Structure |
|---|---|---|---|---|---|
| KSD Series | 240: 240VAC 380: 380VAC 480: 480VAC | D: Zero Crossing R: Random | 5: 5 Amp | H: 15~32VDC W: 4~32VDC | (037): Standard housing |
Optional Models:
| Control Type | Model |
|---|---|
| H: 15~32VDC | KSD240D5-H(037) |
| KSD380D5-H(037) | |
| KSD480D5-H(037) | |
| W: 4~32VDC | KSD240D5-W(037) |
| KSD380D5-W(037) | |
| KSD480D5-W(037) | |
| H: 15~32VDC | KSD240D5R-H(037) |
| KSD380D5R-H(037) | |
| KSD480D5R-H(037) | |
| W: 4~32VDC | KSD240D5R-W(037) |
| KSD380D5R-W(037) | |
| KSD480D5R-W(037) |
Technical Parameters
Input Parameters (Ta=25°C)
| Parameter | Control Type | Value |
|---|---|---|
| Control Voltage Range | H | 15~32VDC |
| W | 4~32VDC | |
| Pick-up Voltage | H | 15VDC |
| W | 4VDC | |
| Release Voltage | H | 5VDC |
| W | 1VDC | |
| Max Control Current | H/W | 25mA (@32VDC) |
Output Parameters (Ta=25°C)
| Parameter | Load Voltage | Value |
|---|---|---|
| Load Voltage Range | 240VAC | 24~280VAC |
| 380VAC | 24~440VAC | |
| 480VAC | 24~530VAC | |
| Max Transient Voltage | 240VAC | 600Vpk |
| 380VAC | 800Vpk | |
| 480VAC | 1200Vpk | |
| Load Current Range | 0.1~5A | |
| Max Surge Current (@10ms) | 250A | |
| Max Turn-on Time | 1ms | |
| Max Turn-off Time | 1/2cycle+1ms | |
| Max Off-state Leakage Current (@ Rated Voltage) | 5mA | |
| Max On-state Voltage Drop (@ Rated Current) | 1.5Vrms | |
| dv/dt | Random Type | 500V/µs |
| Zero Crossing Type | 500V/µs | |
Other Parameters (Ta=25°C)
| Parameter | Value |
|---|---|
| Dielectric Strength (50Hz/60Hz) | 4000Vrms |
| Insulation Resistance (@500VDC) | >1000MΩ |
| Operating Temperature Range | -30°C ~ +80°C |
| Storage Temperature Range | -30°C ~ +100°C |
| Weight (Typical) | 20g |
Application Scenarios
Suitable for lighting control, motor control, solenoid valves, and other similar applications.
Outline Dimensions
The external dimensions of the KSD(037) series relay are provided in the diagram. Key dimensions include:
- Overall length: 44.5mm (max)
- Overall width: 26mm (max)
- Overall height: 10.5mm (max)
- Mounting hole diameter: φ1 ±0.1mm
- Pin pitch details are provided in the diagram.
Wiring Diagram
The wiring diagram illustrates the connections for the solid-state relay:
- DC Input: Connect to DC- and DC+ terminals.
- AC Output: Connect to AC~ and AC~ terminals.
Temperature Derating Curve
The graph shows the relationship between ambient temperature and the maximum allowable load current. As the ambient temperature increases, the maximum load current capacity decreases. For example, at 25°C, the current is 5A, but it derates significantly above 40°C.
Graph with Ambient Temperature (°C) on the x-axis and Load Current (A) on the y-axis. The curve starts at 5A at 25°C and slopes downwards, indicating current derating at higher temperatures.Precautions
- Soldering Temperature: Do not exceed 260°C for more than 10 seconds during soldering. At 350°C, the soldering time must not exceed 5 seconds, as this may damage the product.
- Control Terminal Polarity: Ensure correct polarity for the control terminals; incorrect polarity can damage the product.
- Ambient Temperature: If operating in a high ambient temperature environment, refer to the temperature derating curve for proper usage.
Safety Warnings
- ⚠️ Warning: The side and bottom of the product may become hot during use. Allow it to cool before touching.
- ⚠️ Warning: Ensure all power is disconnected before installing or using this product.
- ⚠️ Warning: Check all connections are secure before applying power.
Certification Standards
| Certification Type | Testing Standard |
|---|---|
| UL | UL508 |
| CE | EN 60947-1:2007/A2:2014 EN 60947-4-3:2014 |
| CCC | GB/T14048.5-2017 |
| CQC | GB/T14048.5-2017 |
Version V5.0, 01-20-2025. Information subject to change without notice. For inquiries, please contact the company.
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