SIEMENS
High-reliability SIRIUS auxiliary switch block designed for front-side mounting. It provides 4 poles (2 NO + 2 NC) with screw terminal connections, specifically engineered for use with Siemens 3RT2 power contactors and 3RH2 contactor relays.
The Siemens 3RH2911-1XA22-0MA0 Auxiliary Switch is a high-quality front-mounted auxiliary contact block designed for seamless integration with Siemens 3RT2 contactors and 3RH2 contactor relays. Featuring a reliable 2 Normally Open (NO) and 2 Normally Closed (NC) contact configuration, this auxiliary switch ensures precise signaling and control in industrial automation systems.
Engineered with screw terminals for secure and easy installation, this Siemens auxiliary switch delivers long-lasting performance, electrical reliability, and operational safety in demanding industrial environments.
Genuine Siemens accessory for optimal compatibility
Reliable 2 NO + 2 NC contact configuration
Front-mounted design for quick installation
Screw terminals ensure secure electrical connections
Ideal for control, signaling, and automation applications
Durable construction for long-term industrial use
Expands the control and signaling capabilities of Siemens contactors
Enables auxiliary switching for monitoring and interlocking circuits
Provides additional NO and NC contacts for automation logic
Ensures stable current paths for industrial control systems
Contact Configuration: 2 NO + 2 NC
Contact Designation: 53/54, 61/62, 71/72, 83/84
Current Path: 1 NO, 1 NC, 1 NC, 1 NO
Mounting Type: Front mounting
Terminal Type: Screw terminal
Compatible Devices: Siemens 3RT2 contactors, Siemens 3RH2 contactor relays
Manufacturer: Siemens
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| SKU / Model | 3RH2911-1XA22-0MA0 |
|---|---|
| Brand | SIEMENS |
| product brand name | SIRIUS |
| suitability for use | Contactor relay and power contactor |
| protection class IP on the front | IP20 |
| ambient temperature | - |
| ● during storage | -55 ... +80 °C |
| ● during operation | -25 ... +60 °C |
| mechanical service life (switching cycles) typical | 10 000 000 |
| electrical endurance (switching cycles) at AC-15 at 230 V typical | 200 000 |
| contact reliability of auxiliary contacts | 1 faulty switching per 100 million (17 V, 1 mA) |
| insulation voltage with degree of pollution 3 at AC rated value | 690 V |
| surge voltage resistance rated value | 6 kV |
| number of NC contacts for auxiliary contacts | - |
| ● lagging switching | 0 |
| number of NO contacts for auxiliary contacts | - |
| ● instantaneous contact | 2 |
| ● leading contact | 0 |
| operational current of auxiliary contacts at AC-12 | - |
| ● at 24 V | 10 A |
| ● at 230 V | 10 A |
| ● maximum | 10 A |
| ● of auxiliary contacts | - |
| — at AC-14 | - |
| — at 125 V | 6 A |
| — at 250 V | 6 A |
| — at AC-15 | - |
| — at 230 V | 6 A |
| — at 400 V | 3 A |
| ● at AC-15 at 690 V rated value | 1 A |
| ● of auxiliary contacts at DC-12 | - |
| ● with 2 current paths in series at DC-12 | - |
| ● with 3 current paths in series at DC-12 | - |
| operational current | - |
| ● of auxiliary contacts at DC-13 | - |
| — at 24 V | 6 A |
| — at 60 V | 2 A |
| — at 110 V | 1 A |
| — at 220 V | 0.3 A |
| ● with 2 current paths in series at DC-13 | - |
| ● with 3 current paths in series at DC-13 | - |
| — at 24 V rated value | 10 A |
| — at 60 V rated value | 4.7 A |
| — at 110 V rated value | 3 A |
| — at 220 V rated value | 1.2 A |
| — at 440 V rated value | 0.5 A |
| — at 600 V rated value | 0.26 A |
| fastening method | snap-on mounting |
| type of electrical connection for auxiliary and control circuit | screw-type terminals |
| type of connectable conductor cross-sections | - |
| ● for auxiliary contacts | - |
| — finely stranded | - |
| — with core end processing | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| ● at AWG cables for auxiliary contacts | 2x (20 ... 16), 2x (18 ... 14) |
| product function mirror contact acc. to IEC 60947-4-1 | Yes |
| product function positively driven operation acc. to IEC 60947-5-1 | Yes |
| ● note | with 3RH2 |
| Test Certificates | Marine / Shipping |
| Vibration and Shock | - |
| last modified: | 12/21/2020 |
| Weight | 0.052 kg |
| Dimensions | 50.00 × 61.00 × 45.00 mm |
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