Siemens Auxiliary Contact, 2 Contact, 2 NC, 3RH, Snap-On, 10 A, 3RH1921-1EA02

RS Stock No.:: 159-419
Mfr. Part No.:: 3RH1921-1EA02
Manufacturer:: Siemens

Siemens Auxiliary Contact, 2 Contact, 2 NC, 3RH, Snap-On, 10 A, 3RH1921-1EA02

Subtotal (1 unit)*

SGD46.61

(exc. GST)

SGD50.80

(inc. GST)

Stock information currently inaccessible - Please check back later

Units	Per unit
1 +	SGD46.61

*price indicative

RS Stock No.:: 159-419
Mfr. Part No.:: 3RH1921-1EA02
Manufacturer:: Siemens

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Siemens
	Product Type	Auxiliary Contact
	Number of Contacts	2
	Normal State Configuration	2 NC
	Series	3RH
	Contact Current	10A
	Mount Type	Snap-On
	Terminal Type	Screw
	Operational Current Ie	10A
	Rated Insulation Voltage Ui	500V
	Mounting Location	Snap-On
	Minimum Operating Temperature	-25°C
	Maximum Operating Temperature	60°C
	Standards/Approvals	RoHS, and KC, UKCA, CE, UL, CCC

	Select all
	Brand Siemens
	Product Type Auxiliary Contact
	Number of Contacts 2
	Normal State Configuration 2 NC
	Series 3RH
	Contact Current 10A
	Mount Type Snap-On
	Terminal Type Screw
	Operational Current Ie 10A
	Rated Insulation Voltage Ui 500V
	Mounting Location Snap-On
	Minimum Operating Temperature -25°C
	Maximum Operating Temperature 60°C
	Standards/Approvals RoHS, and KC, UKCA, CE, UL, CCC

Siemens 3RH Series Auxiliary Contact, 10A Contact Current, 500V Rated Insulation Voltage - 3RH1921-1EA02

This auxiliary contact is a Snap-on auxiliary switching device designed to extend control capabilities in electrical systems. It provides additional normally closed switching points for monitoring or interlocking purposes and is intended for attachment to compatible contactors and control modules within industrial automation and electrical installations.

Features and Benefits:

• Two normally closed contacts offering simple state monitoring
• Rated operational current 10A enabling moderate control loads
• Rated insulation voltage 500V supporting higher-voltage circuits
• Screw terminals for secure conductor connections
• Snap-on mounting for Rapid installation onto existing devices

Applications

• Suitable for adding feedback to industrial contactors
• Ideal for interlock circuits in motor control panels
• Used with control relays in automation racks
• Can be used for status indication on distribution switchgear

What Terminal type does it use for wiring?

It uses screw terminals that provide clamped conductor connections for standard control wiring.

How many switching elements are provided and what is their configuration?

There are two switching elements configured as normally closed contacts for circuit interruption when actuated.

What mounting method is required for installation?

The unit employs a Snap-on mount for direct attachment to compatible contactor bodies or mounting rails.

What temperature range should be observed for reliable operation?

The operating environment should remain within -25°C to 60°C to maintain specification compliance.