Defined 160 / 120 VAC thresholds
Separate turn-on and turn-off levels provide predictable switching behaviour.
SLI230CR
AC input, DC load — 50 mA signal relay
Nominal input
240 V AC
Load voltage
24 V DC
Load current
50 mA
Warranty
10 years
MTTF
17 years
30,92 €
Manufacturer's recommended price. Delivery terms: EXW Nummela, Finland.
10-year warranty
ISO 9001:2015
Technical specifications
Main data
| Nominal input voltage | 240 V AC |
|---|---|
| Nominal load voltage | 24 V DC |
| Rated load current | 50 mA |
| Contact type | N/O, solid state |
| Coil type | AC |
| Load circuit | DC |
| EAN / GTIN | 6410027191102 |
| Application | Immune against noises |
Why choose SLI230CR
Built for a defined industrial duty
Use SLI230CR to bring a 240 VAC field signal safely to a 24 VDC PLC input or similar low-current control load. Its defined switching thresholds and signal-side hysteresis help prevent electrical interference from becoming an unintended switching command.
Only 1 µA leakage
A clearly specified low off-state current on the PLC-input side.
No minimum load
The solid-state output works from 0 to 50 mA and 0 to 60 VDC.
Pulse-transformer isolation
4,600 VAC RMS / 1 s test voltage between field and controller sides.
Application guidance
Use it where its strengths matter
Suitable applications
- 240 VAC field signals to PLC or DCS inputs
- Low-current 24 VDC control inputs
- Industrial panels requiring galvanic field/controller isolation
- Applications needing defined switch-on and switch-off thresholds
Check before selection
- Maximum load current is 50 mA; this relay is intended for PLC inputs and similar low-current loads.
- If switching an inductive load, install a clamp diode across the load as required by the datasheet.
- Verify the actual field voltage against the 160 VAC turn-on and 120 VAC turn-off thresholds.
- Apply thermal derating and horizontal-mounting guidance for dense installations.
Delcon design advantage: the control command crosses a pulse-transformer isolation barrier. The model-specific solid-state output stage is then selected for the actual AC, DC or PLC-input duty. See how the technology works →
Complete the assembly
Verified sockets and bus bars
MIS1GNDIN-rail socket, screw terminalsMIS1CCNDIN-rail socket, spring terminalsJumper 4-134-pole bus barJumper 8-138-pole bus barJumper 16-1316-pole bus bar
For multi-channel installations, Delcon PLC Fast Connect™ mounting bases, cables and PLC adapters are also described in the product datasheet.
Engineering resources
Datasheet and 3D model
Related products and guides
Continue your selection
Compare the closest Delcon alternatives and review the application guidance before final selection.
Frequently asked questions
SLI230CR selection basics
What does SLI230CR connect?
It accepts a nominal 240 VAC field signal and provides a solid-state DC output intended for PLC inputs and similar loads.
Why are separate switching thresholds useful?
The relay turns on at 160 VAC and turns off at 120 VAC. This hysteresis provides a defined state change instead of a single ambiguous switching point.
What is the off-state leakage current?
The specified output leakage current is 1 µA. Always confirm that value against the PLC input requirements.
Can it drive an inductive load?
It is intended for PLC inputs and similar loads. If an inductive load is used, the datasheet requires a clamp diode across the load.
✓ Source: SLI230CR datasheet · Technically reviewed by Delcon Oy · Review date: 5 October 2026
Confirm SLI230CR against your real field signal and PLC input.
Send Delcon the voltage, current, inrush or inductive data, switching frequency and ambient conditions.
