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3RH2911-1GA40

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Regular price $12.17
Sale price $12.17 Regular price


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Overview of Siemens 3RH2911-1GA40

Shop genuine Siemens 3RH2911-1GA40 auxiliary contact block online today for your automation system. This factory-grade component is designed for reliable integration with Siemens SIRIUS control relays, providing four normally open (NO) contacts for expanded signaling in industrial applications. The Siemens 3RH2911-1GA40 is a snap-on front mount auxiliary switch block, engineered for easy installation and secure attachment to compatible 3RH21 series relays. With a robust mechanical service life of up to 10 million switching cycles and an electrical endurance of 200,000 cycles at AC-15, this auxiliary contact block delivers long-term performance in demanding environments. Ideal for engineers and maintenance professionals seeking to expand relay functionality, the 3RH2911-1GA40 is a trusted solution for industrial automation upgrades and panel modifications.

Key Features of Siemens 3RH2911-1GA40

  • 4 normally open (NO) contacts for expanded signaling
  • Front mount snap-on design for easy installation
  • Compatible with Siemens 3RH2140 and 3RH2440 relays
  • Screw terminal connections for secure wiring
  • Physically coded to prevent incorrect mounting
  • High mechanical service life: 10,000,000 cycles
  • Electrical endurance: 200,000 cycles at AC-15, 230 V
  • IP20 protection class for front mounting
  • Conforms to IEC 60947-5-1 standards
  • Lightweight at 51.3 g for easy handling

Technical Specs of 3RH2911-1GA40

Explore Siemens 3RH2911-1GA40 specifications for detailed parameters before installation.

Parameter Value
Contact Type 4 NO
Mounting Front snap-on
Compatible Relays 3RH2140, 3RH2440
Terminal Type Screw
Insulation Voltage 690 V AC
Surge Voltage 6 kV
IP Rating IP20
Mechanical Life 10,000,000 cycles
Electrical Life (AC-15, 230 V) 200,000 cycles
Weight 51.3 g

Applications / Use Case

This Siemens 3RH2911-1GA40 is commonly used in industrial automation worldwide. It is ideal for expanding the signaling capacity of control panels, machine automation systems, and production line setups. The auxiliary contact block is frequently installed in factory control panels, packaging and conveyor operations, and motion control setups where reliable contact expansion is required. Its compatibility with Siemens SIRIUS relays makes it a preferred choice for engineers upgrading or maintaining industrial control systems.

Price & Availability

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3RH2911-1GA40

$12.17

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

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