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Siemens 3RT1926-2EC31 — Contactors

Siemens 3RT1926-2EC31 SIRIUS Auxiliary Switch

MPN3RT1926-2EC31
Active

Siemens SIRIUS auxiliary switch, 3RT1926-2EC31, ON-delay adjustable 5-100 s, coil 100-127 V AC 50/60 Hz, clip-on mounting.

$40.64Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1926-2EC31 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz100 ... 127 V
3RT1926-2EC31 — Connection & Mounting
ParameterValue
Conductor cross-section, solid18 ... 14
Conductor cross-section, finely stranded w/ ferrule0.5 ... 2.5 m²
Mounting methodclip-on
3RT1926-2EC31 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-40 ... +85 °C
Installation altitude, max.2 000 m
3RT1926-2EC31 — Mechanical
ParameterValue
Width33 mm
Height46 mm
Depth73 mm

Product details

ON-delay timer for 3RT1 contactors

The 3RT1926-2EC31: This gives you a timed auxiliary contact without separate panel wiring — the delay starts when the contactor coil energises. The switch provides one delayed N/O contact rated 3 A maximum, with a 1 A rating at 24 V and 0.1 A at 250 V.

The 3RT1926-2EC31 measures 33 mm wide, 46 mm high, and 73 mm deep. It clips directly onto the contactor — no DIN-rail space consumed beyond the contactor itself. Wire termination accepts solid or stranded conductors 18-14 AWG (2x 20-14 AWG for solid). The basic insulation and pollution degree 3 rating suit standard industrial control panels.

Frequently asked questions

What is the time range of the Siemens 3RT1926-2EC31?

The adjustable ON-delay range is 5 to 100 seconds. The recovery time between cycles is 150 ms.

Is the 3RT1926-2EC31 compatible with my 3RT1 contactor?

Yes, this auxiliary switch is designed to clip onto the front of a 3RT1 contactor. The clip-on fastening method and SIRIUS product brand confirm compatibility with the 3RT1 series.

MPN
3RT1926-2EC31