Power Controller (SSR/PID)
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This page explains how Solid State Relay is classified within Electrical Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A semiconductor-based switching device that controls electrical loads without mechanical contacts.
Technical details and manufacturing context for Solid State Relay
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Load Voltage | 24–480 V AC | Exceeding max voltage may cause breakdown |
| Load Current | 10–100 A | Continuous current rating at 40°C |
| Control Voltage | 3–32 V DC | Typical input range for DC controlled SSR |
| Control Current | 5–20 mA | Required to trigger the input circuit |
| On-State Voltage Drop | ≤1.5 V | Lower drop reduces power dissipation |
| Leakage Current | ≤5 mA | At rated load voltage, off-state |
| Switching Time | ≤10 ms | Turn-on plus turn-off time |
| Dielectric Strength | ≥2500 V AC | Input to output isolation for 1 min |
| Insulation Resistance | ≥100 MΩ | At 500 V DC between input and output |
| Operating Temperature | -40–85 °C | Derate current above 40°CIEC 60068-2-1/2 |
| Storage Temperature | -55–125 °C | Non-operating conditionIEC 60068-2-1/2 |
| IP Rating | IP20–IP40 | Depends on housing and terminal coverIEC 60529 |
| Weight | 50–500 g | Varies with current rating and heatsink |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| current: | Up to 100A (load dependent) |
| voltage: | Up to 600V AC/DC (input/output dependent) |
| temperature: | -40°C to +85°C (operating), -55°C to +125°C (storage) |
| switching speed: | Typically <10ms |
| isolation voltage: | 2500V to 5000V RMS |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
9 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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The load voltage range is typically 24–480 V AC, as listed in the directory. However, this is a reference range; the actual range depends on the specific SSR model. Always check the datasheet or consult the manufacturer for the exact voltage rating.
An SSR uses optocouplers or transformers to isolate the low-voltage control circuit from the high-voltage load circuit. This isolation prevents high-voltage transients from affecting the control electronics and enhances safety.
Zero-crossing switching turns the SSR on or off at the point where the AC voltage crosses zero, reducing electrical noise and inrush current. This minimizes stress on the load and the switching device, extending its lifespan.
Relevant standards include IEC 60947-4-2 for low-voltage switchgear and controlgear, IEC 60068-2-1/2 for environmental testing, and IEC 60529 for degrees of protection (IP rating). These standards serve as verification references; the manufacturer or supplier should confirm compliance for the specific model.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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