The Vdc/Vac Voltage Detector X1-NIS-RLI-01 module is a unit suitable for applications requiring SIL 3 level in safety related systems for high risk industries. The module is able to reflect the presence of a 24 to 220 Vac/Vdc nominal input signal to the output by closing an optically coupled open-collector transistor, which guarantees reinforced insulation to the field. The input voltage presence is also indicated by a yellow LED on the front panel. DC signals have a separated interface for a faster response time. To ease maintenance operations, field devices can be disconnected through a two-position insertion/extraction mechanism. This product requires a dedicated Termination Board.SIL 3 / SC 3Installation in Zone 2 / Division 2Loop disconnection to ease maintenance operationsSeparate interface for DC signals for faster response timeReinforced insulation, Field to SystemThree port isolation, Input/Output/SupplyTechnical Specifications:Power Dissipation: 0.45 W, @ 24 Vdc System Supply, 220 Vac input voltage and 10 mA output current, typical.System Supply Voltage: 24 Vdc nom (18 to 30 Vdc).Current Consumption: 15 mA, @ 24 Vdc with closed output contact, typical.System Output Type: Voltage free SPST optocoupled open-collector transistor.Max Output Voltage: 35 Vdc.Max Output Current: 50 mA.Max Voltage Drop: 1.5 V @ 50 mA.Leakage Current: ≤ 50 μA @ 35 Vdc.Response Time: ≤ 1 ms (DC input), ≤ 100 ms (AC input).Field Input (AC Source) Type: AC Voltage signal.AC Voltage Range: 0 to 250 Vrms.AC Switching Thresholds: OFF ≤ 15 Vrms, ON ≥ 20 Vrms.AC Input Impedance: 500 kΩ, typical.Field Input (DC Source) Type: DC Voltage signal.DC Voltage Range: 0 to 250 V.DC Switching Thresholds: OFF ≤ 14 V, ON ≥ 17 V.DC Input Impedance: 400 kΩ, typical.Isolation Test Voltage: Field In/System Out 2.5 kV; Field In/System Supply 2.5 kV; System Out/System Supply 500 V.Operating Temperature: –40 to +70 °C.Storage Temperature: –45 to +80 °C.Mounting: On custom Termination Board.Weight: about 50 g.Dimensions: Width 10 mm, Depth 80 mm, Height 120 mm.Channels: 1Status: ACTIVECertifications:ATEX: FM ATEX zone 2 X1 Series English Certificate (Europe, FM23ATEX0039X, FM, 2025-08-13)Ex: FM US X1 Series Divisions and Zones English Certificate (North America, FM23US0073X, FM, 2025-08-12)Ex: FM Canada X1 Series Divisions and Zones English Certificate (North America, FM23CA0055X, FM, 2025-08-12)IECEx: FM IECEx X1 Series English Certificate (International, IECEx FMG 23.0018X, FM, 2025-08-12)SIL: TUV IT 25 SIL 0530 A SIL Certificate Summary (International, TUV IT 25 SIL 0530 A Rev.1, TUV_SUD, 2025-09-19)UKEx: FM UKEx zone 2 X1 Series English Certificate (United Kingdom, FM23UKEX0040X, FM, 2025-08-14)Declarations of Conformity:EU Declaration of Conformity of X1-NIS-RLI-01UK Declaration of Conformity of X1-NIS-RLI-01