Autonics SR1-4475: single-phase solid state relay from the Autonics SR1 range (Single-Phase Solid State Relays (Detachable Heatsink Type)).
Solid-state relays switch AC loads with a semiconductor instead of moving contacts, so they can switch heaters and lamps millions of times silently and without contact wear.
More Autonics SR1 models and other Autonics parts: Autonics range.
Technical data
| Autonics model | SR1-4475 |
|---|---|
| Series | SR1 – Single-Phase Solid State Relays (Detachable Heatsink Type) |
| Control phase | Single-phase |
| Rated input voltage | 90-240VAC~ |
| Rated load voltage | 48-480VAC~ (50/60Hz) |
| Rated load current | 75A |
| الوظيفة | Zero cross turn-on |
| Dielectric strength | Between the live part and the case : 2,500 VAC~ 50 / 60 Hz for 1 min |
| Ambient temperature | -30 to 80°C(in case of the rated input voltage 90-240VAC~: -20 to 70°C), storage: -30 to 100°C (The rated load current capacity is diferent depending on ambient temperature. Refer to '▣ SSR Derating Curve'.) |
| Ambient humidity | 45 to 85% RH, storage: 45 to 85% RH |
| Unit weight (packaged weight) | ≈ 80 g (≈ 120 g) |
| Brand | Autonics |
| Condition | New, original |
Key data at a glance
- Control phase: Single-phase
- Rated input voltage: 90-240VAC~
- Rated load voltage: 48-480VAC~ (50/60Hz)
- Rated load current: 75A
- Function: Zero cross turn-on
Typical applications
- Ovens, sealers and packaging machines
- Heater control with temperature controllers
- Replacement of a failed SSR
- Plastic injection and extrusion machines
Compatibility and replacement
Order with the full model code SR1-4475: in the Autonics code the letters and digits after the series select the size, sensing distance or resolution, the output type and the supply, so a different suffix may not fit your wiring.
If the label of the old unit is worn or the model is discontinued, send us a photo and we will confirm the current Autonics equivalent before quoting.
Before you replace it
- Control (input) voltage
- Number of phases/poles
- Load current and voltage
Frequently asked questions
What control voltage does it need?
90-240VAC~, according to the Autonics data sheet.
What load current can it switch?
75A, according to the Autonics data sheet.
Do you supply larger quantities for projects?
Yes. For panel builders, OEMs and plant projects we quote complete lists; send the bill of materials on WhatsApp or through the inquiry form.
Do you ship to my country, and what is the warranty?
Yes. RendatSP ships worldwide from Yiwu, China, by air in 5 to 7 days once the part is ready, and every part carries a 1-year warranty. Send the order number and quantity on WhatsApp and we will reply with a quotation.
How to order
Message us the order number and quantity. For breakdowns, tell us the delivery address and we will offer the fastest shipping option. If the exact part is discontinued, we confirm the official successor before quoting.
RendatSP ships from Yiwu, China, to factories worldwide; air delivery usually takes 5 to 7 days once the part is ready. The part is new and original with a 1-year warranty (shipping, payment and warranty). For a quotation, message us on WhatsApp with the order number and quantity. We also have agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
