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Siemens 3RT2946-1CE00 — Contactors

Siemens 3RT2946-1CE00 Surge Suppressor RC, 240-400 V AC

MPN3RT2946-1CE00
Active

Siemens SIRIUS 3RT2946-1CE00 surge suppressor, RC element, 240-400 V AC, 50/60 Hz, for 3RT2.4 contactors, S3 size, 23 x 25 x 55 mm.

Siemens 3RT2946-1CE00 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT2946-1CE00 — Identification
ParameterValue
Contactor frame sizeS3
3RT2946-1CE00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz240 ... 400 V
3RT2946-1CE00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-40 ... +80 °C
3RT2946-1CE00 — Mechanical
ParameterValue
Width25 mm
Height55 mm
Depth23 mm
3RT2946-1CE00 — Other specifications
ParameterValue
At 60 Hz240 ... 400 V
1 rated value50 Hz
2 rated value60 Hz
Substance prohibitance07/01/2006
Design of the surge suppressorRC element

Product details

RC snubber for S3 contactor coils

The Siemens 3RT2946-1CE00 is a surge suppressor built as an RC element — a resistor-capacitor snubber — designed to bolt onto SIRIUS 3RT2.4 contactors in the S3 frame size. It clamps the voltage spike when the contactor coil de-energises, protecting nearby PLC outputs and reducing electrical noise on the control wiring.

Panel fit and thermal envelope

At 23 mm deep, 25 mm wide, and 55 mm tall, the suppressor clips onto the contactor's front face — it does not consume extra DIN-rail space. The S3 contactor footprint stays the same with or without it fitted. The RC element handles continuous AC coil duty; no additional heatsinking is needed.

No stock-holding claim — quoted per request.

Frequently asked questions

What compliance documentation does Siemens provide for 3RT2946-1CE00?

The part carries a substance prohibitance date of 07/01/2006, indicating RoHS compliance per Siemens documentation. No UL, CSA, or IEC certification numbers are listed in the available record.

What is 3RT2946-1CE00's listed depth?

The depth is 23 mm. Width is 25 mm and height is 55 mm, so it mounts flush on the contactor face without protruding beyond the S3 frame envelope.

MPN
3RT2946-1CE00