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Siemens 3RH2911-1GA31-ZW97 — Contactors

Siemens 3RH2911-1GA31-ZW97 SIRIUS Auxiliary Switch, 3NO+1NC,

MPN3RH2911-1GA31-ZW97
Active

Siemens SIRIUS auxiliary switch block, 3RH2911-1GA31-ZW97, 3 NO + 1 NC, screw-type terminals, snap-on mounting, 10 A maximum, IP20 front.

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

3RH2911-1GA31-ZW97 — 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
3RH2911-1GA31-ZW97 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2911-1GA31-ZW97 — Connection & Mounting
ParameterValue
Mounting methodsnap-on mounting
3RH2911-1GA31-ZW97 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RH2911-1GA31-ZW97 — Mechanical
ParameterValue
Width36 mm
Height37.5 mm
Depth43.7 mm

Product details

It gives you three normally-open and one normally-closed auxiliary contact set, wired through screw-type terminals, in a 36 mm wide package that clips onto standard DIN rail. Rated for 10 A maximum continuous current, with the AC-15 switching curve dropping to 6 A at 230 V and 3 A at 400 V. The DC switching side handles 10 A at 24 V, 6 A at 125 V, and 0.26 A at 600 V — so it covers both control-circuit and light power-switching duties inside the panel. Mechanical life is 10 million switching cycles typical.

Panel fit and wiring constraints

Snaps onto the contactor relay front — no tools needed for the mechanical fit, but the screw terminals need a screwdriver. Accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with ferrule, or 2x (20 to 16 AWG) and 2x (18 to 14 AWG) for stranded. Strip length isn't called out in the spec, but standard 8 mm works for this terminal class.

Frequently asked questions

What contact configuration does this auxiliary switch have?

Three normally-open (NO) and one normally-closed (NC) contact, wired via screw-type terminals. The NO contacts are on terminals 53/54, 61/62, and 73/74; the NC is on 83/84.

What is the maximum current rating?

10 A maximum continuous. For AC-15 switching duty, it's 6 A at 230 V and 3 A at 400 V. For DC, it handles 10 A at 24 V, 6 A at 125/250 V, and 0.26 A at 600 V.

MPN
3RH2911-1GA31-ZW97