3RT1936-1CB00

The Siemens SIRIUS S2 and S3 size contactor RC surge absorber is designed for AC 24 to 48V or DC 24 to 70V low voltage coil circuits. It weighs approximately 0.027kg and is installed on the coil terminals to suppress power outage surges. The original manufacturer has discontinued production of this product, and the recommended replacement model is 3RT2936-1CB00.

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Siemens 3RT1936-1CB00 SIRIUS contactor RC surge absorber 24-48V

Product Positioning

The 3RT1936-1CB00 is a low-voltage RC surge absorber suitable for Siemens SIRIUS large series S2 and S3 size contactors. It is compatible with AC 24 to 48V or DC 24 to 70V coil circuits and weighs approximately 0.027 kg. Installed on the contactor coil terminals, it absorbs induced surges during power outages, protecting control circuit components. This model is discontinued; it is recommended to use the corresponding SIRIUS 3RT2 series model 3RT2936-1CB00 for future purchases.

Core Product Advantages and Features

Low voltage RC absorber

Designed specifically for low-voltage coil circuits of AC24~48V and DC24~70V

Net weight specified

Approximately 0.027 kg, facilitating logistics and inventory management estimation.

Protection control circuit

Reduce surge interference to PLC output modules and relays

Production halt notice

The original manufacturer has discontinued production; it is recommended to use the corresponding model 3RT2936-1CB00 instead.

Applicable to S2 and S3 contactors

Covering two common SIRIUS large contactor sizes

project	Specification
Product Type	RC surge absorber (resistive-capacitive element)
Applicable voltage	AC 24~48V / DC 24~70V
Applicable contactor size	S2, S3 (3RT103, 3RT104 series)
net weight	0.027 kg
Packaging size	40×53×30 mm
Product Status	The original manufacturer has discontinued production; it is recommended to use 3RT2936-1CB00 instead.

Recommend

3RT1936-1CC00

RC surge absorbers for Siemens SIRIUS S2 and S3 size contactors are compatible with AC 48 to 127V or DC 70 to 150V coil circuits. They are installed on the coil terminals to absorb surge voltage during power outages. They are suitable for switchboard designs using medium voltage control circuits and PLC output modules.

3RT1935-6A

This is a Siemens SIRIUS S2 size contactor main contact replacement kit, compatible with the 3RT1035 series and AC-3 18.5kW contactors. The kit includes movable and fixed contacts and mounting parts, weighing approximately 0.046kg. It is suitable for regular maintenance and replacement of worn contacts. This kit is discontinued by the manufacturer, so please plan your replacement schedule in advance.

3RT1935-5AN21

The 3RT1935-5AN21 is a dedicated magnetic coil for Siemens SIRIUS large S2 contactors. It is rated for AC220V and is a dual-frequency universal coil for 50/60Hz. It is suitable for 3RT1035 and 3RT1036 series contactors. It uses screw terminal connection and is a genuine spare part number registered by the manufacturer, which allows maintenance personnel to quickly replace faulty coils.