Siemens Auxiliary Contact, 2 Contact, 1NC + 1NO, Side Mount, Sirius Classic

RS Stock No.:: 746-0718
Mfr. Part No.:: 3RH1921-1JA11
Manufacturer:: Siemens

Siemens Auxiliary Contact, 2 Contact, 1NC + 1NO, Side Mount, Sirius Classic

Price Each**

SGD41.00

(exc. GST)

SGD44.69

(inc. GST)

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Units	Per unit
1 +	SGD41.00

**price indicative

RS Stock No.:: 746-0718
Mfr. Part No.:: 3RH1921-1JA11
Manufacturer:: Siemens

Auxiliary Contacts - 3RH Range

Siemens range of auxiliary contact bloacks to suit the 3RH contactors.

Front mounting position
Current rating; 6A
Accepts cables up to 2 x 2.5mm²
1 x block per contactor, 1 x block per relay

Note

* These are make before break contacts

Siemens 3RH1 Series Auxiliary Contact, 1NC + 1NO Normal State Configuration, Side Mount Mounting Style - 3RH1921-1JA11

This auxiliary contact enhances electrical control systems, ensuring dependable operation across diverse applications. Its integration improves contactor functionality, offering key advantages for automation and electrical systems. The dual configuration of normally closed (NC) and normally open (NO) contacts allows for versatile operations in various settings.

Features & Benefits

• Features 1 NO and 1 NC for adaptable control
• Side mount design optimises space
• Utilises screw terminal connections for secure wiring
• Offers high mechanical endurance with 10 million cycles
• Supports a broad range of operational currents for increased versatility
• Designed for easy integration with 3RT1 contactors

Applications

• Utilised in automation systems for control tasks
• Facilitates status indication in industrial machinery
• Ideal for use with 3RT10 and 3RT12 contactors
• Suitable for safety circuits needing reliable signalling
• Commonly employed in electrical distribution panels

How does the dual contact configuration benefit my system?

The dual configuration allows for both control and signalling functions in one unit, enhancing operational efficiency.

What is the maximum operational temperature for this device?

The device operates effectively in temperatures ranging from -25°C to +60°C, ensuring adaptability to various environments.

Can it be used with other brands' contactors?

While designed for 3RT1 series contactors, compatibility with other brands may vary based on specific electrical requirements.

How should I maintain it for optimal performance?

Regular inspection and cleaning of terminals can help maintain connection integrity and extend the product's lifespan.

What type of cable can be connected to the terminals?

The terminals accommodate solid or stranded cables within a cross-section of 0.5 to 2.5mm², ensuring versatility in installation.

Siemens Sirius Range Contactor & Control Relays

Attribute	Value
Number of Contacts	2
Normal State Configuration	NO/NC
Mounting Style	Lateral
Range	Sirius Classic
Series	3RH1
Terminal Type	Screw
Pole and Throw Configuration	DP