i-Autoc KSA Series Single-Phase AC Output Solid State Relays
Product Description
The KSA series comprises normally open, compact AC solid-state relays designed for controlling solenoid valves, motors, and similar loads. They feature DC control input and offer either current-driven (10mA) or voltage-driven (5VDC, 12VDC, 24VDC) control options. The relays provide photoelectric isolation between input and output, with output triggering available in AC zero-crossing or random modes.
- TTL compatible input
- TRIAC output
- Load Current: 2A
- Control Voltage: 5VDC, 12VDC, 24VDC
- Control Current: 10mA
- Dielectric Strength: 2500Vrms
- PCB mounting
- RoHS compliant
Product Selection
The model number is structured as follows:
| Part | Description |
|---|---|
| KSA | Series |
| 240 | Load Voltage (240VAC) |
| D | DC Control Input |
| 2 | Load Current (2A) |
| R | Triggering Type (R = Random; default = Zero-Crossing) |
| 5 / 12 / 24 / I | Control Voltage (5VDC / 12VDC / 24VDC / 10mA) |
| T | Terminal Type (T = T-type terminals; default = Standard Pins) |
Available Models
| Control Voltage | Zero-Crossing Models | Random Triggering Models |
|---|---|---|
| 5VDC | KSA240D2-5 | KSA240D2R-5 |
| 12VDC | KSA240D2-12 | KSA240D2R-12 |
| 24VDC | KSA240D2-24 | KSA240D2R-24 |
| 10mA | KSA240D2-I | KSA240D2R-I |
Models with T-type terminals are indicated by adding 'T' to the model number (e.g., KSA240D2-5T).
Technical Parameters
Input Parameters (Ta=25°C)
| Parameter | Value |
|---|---|
| Control Voltage Range | 5: 4~6VDC, 12: 9.6~14.4VDC, 24: 19.2~28.8VDC |
| Control Current Range | 10mA~25mA |
| Pick-up Voltage | 5: 4VDC, 12: 9.6VDC, 24: 19.2VDC |
| Pick-up Current | 10mA |
| Release Voltage | 5/12/24: 1VDC |
| Release Current | 5/12/24: 1mA |
Output Parameters (Ta=25°C)
| Parameter | Value |
|---|---|
| Load Voltage Range | 24~280VAC |
| Max. Surge Current (@10ms) | 35Apk |
| Max. I²t Value (@10ms) | 6.1A²s |
| Max. On-State Voltage Drop (@ Rated Load Current) | 1.5Vrms |
| Max. On-State Time | 1/2cycle+1ms |
| Max. Off-State Time | 1ms |
| Operating Frequency | 47~63Hz |
| Min. Power Factor | 0.5 |
| Dielectric Strength (Input/Output, 50Hz/60Hz) | 2500Vrms |
| Insulation Resistance (@500VDC) | 1000MΩ |
| Operating Temperature Range | -30°C to +80°C |
| Storage Temperature Range | -30°C to +100°C |
| Weight (Typical) | 6g |
Application
Suitable for controlling solenoid valves, motors, and other AC loads.
Outline Dimensions
The KSA series relays are available in standard pin and T-type terminal configurations. Dimensions are approximately 24.2mm (Length) x 6.7mm (Width) x 21.4mm (Height).
Standard Pin Configuration: Features pins with a 2.54mm pitch for PCB mounting.
T-type Terminal Configuration: Features T-shaped terminals for alternative connections.
Wiring Diagram
Standard Pin Layout:
- Pin 1: AC- (Load Negative)
- Pin 2: AC~ (Load AC)
- Pin 3: DC- (Control Negative)
- Pin 4: DC+ (Control Positive)
T-type Terminal Layout:
- Terminal 1: AC- (Load Negative)
- Terminal 2: AC~ (Load AC)
- Terminal 3: DC- (Control Negative)
- Terminal 4: DC+ (Control Positive)
Temperature Curve
The graph illustrates the derating of the load current based on ambient temperature. It shows that the maximum load current decreases as the ambient temperature increases above approximately 30°C.
Precautions
- Soldering: Maximum 260°C for 10 seconds, or 350°C for 5 seconds. Exceeding these limits may damage the product.
- Control Input: Ensure correct polarity for the control input to prevent product damage.
- Ambient Temperature: For high ambient operating temperatures, use the product according to the derating shown in the temperature curve.
Safety Warnings
- Heat: The sides and base of the product may become hot during operation. Allow the product to cool before touching.
- Power Disconnection: Always disconnect all power sources before installing or using this product.
- Connection Check: Verify all connections are secure and correct before applying power.
Certifications
| Certification Type | Test Standard | Certificate Number |
|---|---|---|
| UL | UL508 | E471925 |
| TÜV | EN62314 | B 089797 0016 |
