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Siemens 3RH1911-1AA01 — Contactors

Siemens 3RH1911-1AA01 SIRIUS Auxiliary Switch Block, 1 NC

MPN3RH1911-1AA01

Siemens SIRIUS auxiliary switch block, 1 NC, screw terminals, size S00, snap-on mounting, 10 A thermal current, IP20 front protection.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RH1911-1AA01 — Ratings & Performance
ParameterValue
Rated value @ 24 V10 A
Rated value @ 60 V4.7 A
Rated value @ 110 V3 A
Rated value @ 220 V1.2 A
3RH1911-1AA01 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1911-1AA01 — Connection & Mounting
ParameterValue
Mounting methodsnap-on mounting
3RH1911-1AA01 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RH1911-1AA01 — Mechanical
ParameterValue
Width28.5 mm
Height37.5 mm
Depth41.5 mm

Product details

It uses screw-type terminals and is rated for a maximum thermal current of 10 A, with specific contact ratings across AC and DC voltages.

Contact Ratings and Application

This block carries a rated operational current of 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V under AC-15 duty, which covers switching of electromagnetic loads like contactor coils. For DC switching, the ratings are 10 A at 24 V, 4.7 A at 60 V, and 0.26 A at 600 V.

The block snaps onto the front of S00 contactors and contactor relays. Dimensions are 28.5 mm wide, 37.5 mm high, and 41.5 mm deep. Wiring accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with core-end processing, or 2x (20 to 16) and 2x (18 to 14) AWG.

Environmental and Electrical Endurance

Frequently asked questions

What replaces the 3RH1911-1AA01?

The preferred successor is the Siemens SIRIUS 3RH2911-1AA01.

Where can I buy the 3RH1911-1AA01?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What are the key ratings of the 3RH1911-1AA01?

It has a maximum thermal current of 10 A, with AC-15 ratings of 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. DC ratings include 10 A at 24 V and 0.26 A at 600 V.

What is the 3RH1911-1AA01 used for?

It is an auxiliary switch block with one NC contact, used with SIRIUS S00 contactor relays and power contactors for signaling or control logic.

MPN
3RH1911-1AA01