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The Siemens 3RH2911-2FA22 is a front-mounting auxiliary switch block from the SIRIUS 3RH2 series, designed to expand the control circuit capacity of SIRIUS 3RT2 power contactors and 3RH2 contactor relays. It provides a 2 NO + 2 NC contact configuration with spring-loaded (cage clamp) terminals, enabling reliable signaling, interlocking, and status feedback in industrial control panels.
This auxiliary switch is a current, active product (PLM status PM300: Active Product), ensuring long-term availability for new installations and maintenance alike . The spring-loaded terminals provide maintenance-free, vibration-resistant connections, while the front-mounting design allows the block to be installed without tools and independently of the contactor size.
Artikelnummer :
3RH2911-2FA22Bestellung (Mindestbestellmenge) :
1Zahlung :
EXWProduktursprung :
GermanyVerschiffungshafen :
Wuhan, Hubei, ChinaLieferzeit :
3-5 daysGewicht :
0.064kgOverview
3RH2911-2FA22 SIMATIC PLC Module
New in stock
Origin from Germany
Payment Method: TT.Western Union
Shipping Method: DHL\UPS\Fedex\EMS\Others
More Brands
| Part Number | Description | Key Difference |
|---|---|---|
| 3RH2911-2FA22 | 2 NO + 2 NC, front-mount, spring terminal (this item) | Standard configuration |
| 3RH2911-1FA22 | 2 NO + 2 NC, front-mount, screw terminal | Screw terminal variant |
| 3RH2911-2HA22 | 2 NO + 2 NC, front-mount, spring terminal | Alternative contact arrangement |
| 3RH2911-2FA40 | 4 NO, front-mount, spring terminal | All-NO configuration |
| 3RT2026-1AP00 | SIRIUS 3RT2 Contactor, S0, 25 A | Compatible host contactor (example) |
1 × Siemens 3RH2911-2FA22 SIRIUS Auxiliary Switch Block (2 NO + 2 NC, Spring Terminal, Front-Mount)
Note: Host contactor and other accessories are sold separately.
In Stock – Ready to ship immediately
Genuine Siemens Product – Factory original SIRIUS component, PM300 Active status
Warranty Included – Purchase with confidence
Technical Support – Contactor compatibility assistance available
Q1: What is the Siemens 3RH2911-2FA22?
It is a front-mounting auxiliary switch block for SIRIUS 3RT2 contactors and 3RH2 contactor relays. It provides 2 NO + 2 NC contacts with spring-loaded terminals to expand control circuit capacity .
Q2: Which contactors is this auxiliary switch compatible with?
It is designed for 3RT2.1, 3RT2.2, 3RT2.3, and 3RT2.4 power contactors, as well as 3RH2 contactor relays .
Q3: Is this a front-mounting or side-mounting switch?
It is front-mounting. It snaps directly onto the front face of the contactor, leaving the side surfaces available for other accessories .
Q4: What is the contact configuration?
It has 2 Normally Open (NO) and 2 Normally Closed (NC) contacts, with a current path of 1 NO, 1 NC, 1 NC, 1 NO .
Q5: What type of terminals does it use?
It uses spring-loaded (cage clamp) terminals for maintenance-free, vibration-resistant connections .
Q6: What is the rated operational current?
At AC-15, it is rated for 6 A at 24 V and 230 V, and 3 A at 400 V. At AC-12, it is rated for 10 A at 24 V and 230 V .
Q7: What is the mechanical service life?
The mechanical service life is 10,000,000 operating cycles .
Q8: What are the dimensions and weight?
Dimensions are approximately 36 × 41.5 × 47.7 mm (W × H × D). Net weight is 0.057–0.062 kg .
Q9: Is this a genuine Siemens product?
Yes. This is a genuine Siemens SIRIUS component with PM300: Active Product lifecycle status .
Q10: What is the country of origin?
The Czech Republic .
Q11: What should I verify before ordering?
Always verify the exact part number (3RH2911-2FA22), confirm your contactor model is a 3RT2 series or 3RH2 relay, and ensure that the 2 NO + 2 NC configuration matches your control circuit requirements.
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