Skip to main content
Siemens 3RH1911-1HA22 — Contactors

Siemens 3RH1911-1HA22 SIRIUS Auxiliary Switch Block, 10 A

MPN3RH1911-1HA22

Siemens SIRIUS auxiliary switch block, 3RH1911-1HA22, 2 NO + 2 NC, 10 A, screw-type terminals, snap-on mounting, IP20.

$16.89Ref. price · indicative, final on quote
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

3RH1911-1HA22 — 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
3RH1911-1HA22 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1911-1HA22 — Connection & Mounting
ParameterValue
Mounting methodsnap-on mounting
3RH1911-1HA22 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RH1911-1HA22 — Mechanical
ParameterValue
Width36.5 mm
Height37.5 mm
Depth41.5 mm

Product details

It provides 2 normally open and 2 normally closed instantaneous contacts, rated for a maximum of 10 A, with screw-type terminals for wiring.

The 10 A maximum rating governs the thermal current the contacts can carry continuously. For inductive loads at 24 V DC, the switching capacity drops to 6 A; at 110 V DC it's 1 A, and at 220 V DC it's 0.3 A. The AC-15 rating at 690 V is 1 A, which is the relevant figure for solenoid and contactor coil switching in a control circuit. These are the numbers that decide whether this block handles your specific load without welding contacts or exceeding thermal limits. That means it's suitable for both power switching and PLC-level signal feedback without nuisance failures. The block measures 36.5 mm wide, 41.5 mm deep, and 37.5 mm high — compact enough to fit on a contactor face or in a crowded DIN-rail enclosure.

Insulation voltage is rated at 690 V AC with pollution degree 3, and surge voltage resistance is 6 kV — typical for industrial control circuits up to 480/690 V systems.

Frequently asked questions

Where can I buy 3RH1911-1HA22 and get a price?

This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is the closest replacement for 3RH1911-1HA22?

The official preferred successor is 3RH2911-1HA22. It provides the same 2 NO + 2 NC contact arrangement but is physically larger (45 mm wide vs 36.5 mm) and uses a different mounting system, so panel rework is typically required.

What compliance documentation is available for 3RH1911-1HA22?

The part carries standard Siemens SIRIUS documentation including RoHS and REACH compliance declarations. The insulation voltage rating of 690 V AC with pollution degree 3 and 6 kV surge voltage resistance supports IEC 60947-1 compliance for control circuit applications.

MPN
3RH1911-1HA22