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Siemens 3RK1908-0AP00-0EP0 — Remote I/O & Fieldbus Modules

Siemens SIMATIC 3RK1908-0AP00-0EP0 BaseUnit, 7 A, 24 VDC, DI

MPN3RK1908-0AP00-0EP0
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Siemens SIMATIC BaseUnit, 3RK1908-0AP00-0EP0, 7 A, 24 VDC, push-in terminals, DIN rail mount, 75 mm depth.

$96.52Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RK1908-0AP00-0EP0 — Identification
ParameterValue
Product designationBaseUnit
Product designwith AC infeed, with F-DI
3RK1908-0AP00-0EP0 — I/O
ParameterValue
Digital inputs1
3RK1908-0AP00-0EP0 — Electrical
ParameterValue
Rated value (DC)24 V
Rated surge voltage6 kV
Operating Voltage Rated Value500 V
Number Of Poles For Main Current Circuit3
3RK1908-0AP00-0EP0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C; For derating see manual
Storage temperature range-40 ... +70 °C
Shock resistance6g / 11 ms
Pollution degree2
3RK1908-0AP00-0EP0 — Mechanical
ParameterValue
Width30 mm
Depth75 mm
Height215 mm
Mounting methodDIN rail

Product details

Rated ampacity is 7 A, with a 24 VDC nominal supply (20.4 to 28.8 V range). Push-in terminals on both the main and auxiliary/control circuits accept 0.5 to 2.5 mm² solid or stranded wire (18–10 AWG for the supply). The single digital input is Type 1 per EN 61131-2, with a signal-1 threshold of 15–30 VDC and signal-0 at 0–5 VDC. That means it will reliably read a standard 24 VDC PLC output or sensor, and reject leakage below 5 V — no special conditioning needed. Storage and transport tolerate -40 to +70 °C. Vibration resistance is 15 mm at 6 Hz and 2g up to 500 Hz; shock rated at 6g for 11 ms. Pollution degree 2 — suitable for a typical industrial control cabinet environment.

Dimensions: 30 mm wide, 215 mm tall, 75 mm deep. Mount vertically or horizontally. Push-in terminals: strip 8–10 mm, push solid wire or ferrule straight in. Release with a 0.6 x 3.5 mm slot screwdriver. No re-torquing needed — spring cage holds through vibration.

Frequently asked questions

What wire sizes does the push-in terminal accept?

Solid or stranded 0.5 to 2.5 mm² (18–10 AWG for the supply circuit). One conductor per clamp.

What is the operating voltage range for the DC supply?

24 VDC nominal, with a permissible range of 20.4 to 28.8 V.

MPN
3RK1908-0AP00-0EP0