Solid State Relays & SCR Power Modules
SSR-LA Analog Controlled Solid State Relay, 4–20mA Input, 10A–100A
SSR-LA Series Analog Controlled Solid State Relay is a single-phase solid state voltage regulator module designed for proportional AC load control. It accepts a standard 4–20mA analog input signal and adjusts the AC output voltage accordingly, making it suitable for heating systems, temperature control equipment, fans, packaging machines and industrial automation applications.
- 4–20mA analog input control
- Proportional AC voltage output
- Single-phase solid state voltage regulation
- Output voltage range: 0–250VAC
- Available current ratings: 10A to 100A
- Opto-isolated internal circuit design
- High dielectric strength over 4KV
- High isolation resistance over 100MΩ / 500VDC
- High surge current and surge voltage resistance
- Suitable for heating and automation control systems
- Stock / sample dispatch
- 3–5 working days
- Warranty
- 12 months
- OEM
- Supported
- Shipping
- Worldwide export
Technical specifications
| Product Series | SSR-LA |
|---|---|
| Product Type | Analog Controlled Solid State Relay |
| Load Current | 10A, 25A, 40A, 50A, 60A, 75A, 80A, 100A, 120A |
| Load Voltage | 0–250VAC |
| Control Input | 4–20mA |
| Control Current | AC ≤12mA |
| On-state Voltage Drop | ≤1.5V |
| Off-state Leakage Current | ≤2mA |
| On-off Time | N/A |
| Dielectric Strength | 2500VAC |
| Insulation Resistance | 1000MΩ |
| Ambient Temperature | −30°C to +75°C |
| Mounting Method | Screw mounting |
| Work Indicator | N/A |
| Weight | 80g |
SSR Selection Guide
Dimensions & Wiring Diagram
Popular models
All SSR-LA models share the same 4–20mA analog control input and 0–250VAC load voltage; only the rated load current differs.
| Model | Load Current | Control Input | Load Voltage |
|---|---|---|---|
| SSR-10LA | 10A | 4–20mA | 0–250VAC |
| SSR-25LA | 25A | 4–20mA | 0–250VAC |
| SSR-40LA | 40A | 4–20mA | 0–250VAC |
| SSR-50LA | 50A | 4–20mA | 0–250VAC |
| SSR-60LA | 60A | 4–20mA | 0–250VAC |
| SSR-75LA | 75A | 4–20mA | 0–250VAC |
| SSR-80LA | 80A | 4–20mA | 0–250VAC |
| SSR-100LA | 100A | 4–20mA | 0–250VAC |
| SSR-120LA | 120A | 4–20mA | 0–250VAC |
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