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Siemens 3RH1122-2BB40-ZX96 — Contactors

Siemens 3RH1122-2BB40-ZX96 SIRIUS Auxiliary Contactor, 10 A

MPN3RH1122-2BB40-ZX96

Siemens SIRIUS auxiliary contactor, 3RH1122-2BB40-ZX96, 24 VDC coil, 2 NO + 2 NC, 10 A AC-12 max, screw and snap-on mounting, 45 mm width, current lifecycle.

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

3RH1122-2BB40-ZX96 — Identification
ParameterValue
Contactor frame sizeS00
3RH1122-2BB40-ZX96 — Ratings & Performance
ParameterValue
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 110 V1 A
Rated value @ 220 V0.27 A
3RH1122-2BB40-ZX96 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1122-2BB40-ZX96 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1122-2BB40-ZX96 — Protection & Coordination
ParameterValue
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RH1122-2BB40-ZX96 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
3RH1122-2BB40-ZX96 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1122-2BB40-ZX96 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RH1122-2BB40-ZX96 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

Its 24 VDC coil draws 3.2 W both on pickup and hold, meaning the coil circuit sees a constant power load — no inrush peak to size a DC supply against, but the holding power is the same as the closing power, so the supply must sustain that draw continuously. The contact block carries 2 instantaneous NO contacts and 2 NC contacts, rated for AC-12 duty at 10 A maximum — that is the resistive load rating per IEC 60947-5-1, covering solenoid valves, indicator lamps, and PLC digital inputs. For inductive loads like contactor coils, derate to the AC-15 curve: at 230 V the rated value is 6 A, at 400 V it drops to 3 A, and at 690 V it is 1 A. The DC switching capability is present but limited: at 24 V rated value it handles 10 A, at 110 V only 1 A, and at 220 V just 0.27 A — so for DC motor brake or clutch circuits above 24 V, verify the load current against the curve.

The depth is 73 mm, height 60 mm. Side clearance is 0 mm to adjacent devices, so it can be ganged directly without spacing. The screw terminals accept 2x solid conductors from 0.25 to 2.5 mm² — typical for control wiring in a 600 V panel. The front face carries IP20 finger protection, adequate for enclosed panels but not for open-rack mounting where tools or fingers could contact live parts.

Frequently asked questions

What are the key ratings for this auxiliary contactor?

The 3RH1122-2BB40-ZX96 has a 24 VDC coil drawing 3.2 W, 2 NO + 2 NC contacts rated 10 A AC-12 maximum, and AC-15 ratings of 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. DC ratings are 10 A at 24 V, 1 A at 110 V, and 0.27 A at 220 V.

What is the physical size and mounting of this part?

It is 45 mm wide, 73 mm deep, 60 mm high, and mounts via screw or snap-on onto 35 mm DIN rail. Side clearance is 0 mm to adjacent devices.

MPN
3RH1122-2BB40-ZX96