The CD Automation 271SSR (CD3S10035240SSR) is a compact single-phase thyristor power controller featuring a zero-crossing switch and antiparallel connected thyristors. Designed for heating control with ohmic loads, this unit delivers a load current of 35 A at 40°C and 28 A at 50°C, supporting load voltages up to 240 V. It operates with a logic control of 4-30 Vdc (max 12 mA) requiring no auxiliary voltage. Space-saving installation is achieved through an integrated heatsink with dimensions of 52 x 120 x 120 mm (W x H x D) and an approximate weight of 500 g. The device includes a built-in RC network, varistor, LED status indicator, and supports both DIN rail mounting and screw fixing. The 271SSR carries the CE mark.
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| Manufacturer | CD AUTOMATION |
|---|---|
| Country | |
| Part number | 271SSR |
| Inner Code | 3710907 |
| Product type | Single-phase thyristor power controller |
|---|---|
| Type | CD3000S-1PH/35A/-/240V/NO/SSR/ZC/NF |
| Weight | approx. 500 g |
| Circuit | Single-phase controller, zero-crossing switch |
| Load current | 35 A (T40°C), 28 A (T50°C) |
| Load voltage | up to 240 V |
| Auxiliary voltage | none |
| Control | Logic 4-30 Vdc, 12 mA max. (OFF < 1 Vdc, ON > 4 Vdc) |
| Dimensions | 52 x 120 x 120 mm (WxHxT) |