SIEMENS 3RH1921-1HA22 SIRIUS AUXILIARY CONTACT BLOCK

4-Pole | 2NO + 2NC | Screw Terminals | Industrial Contactor Accessory | Seller Refurbished – Excellent Condition

Condition

Seller Refurbished – Excellent Condition

This Siemens SIRIUS 3RH1921-1HA22 four-pole auxiliary contact block is offered in excellent refurbished condition. It is an industrial electrical control component intended for compatible Siemens contactor and switching assemblies.

Please review the listing photographs for actual appearance, screw terminals, contact markings, mounting features, manufacturer identification, and included components.

Product Overview

The Siemens SIRIUS 3RH1921-1HA22 is an industrial four-pole auxiliary contact block featuring two normally open (2NO) and two normally closed (2NC) contacts with screw terminal connections.

Auxiliary contact blocks provide additional electrical switching contacts for compatible contactors and control devices, allowing the operating state of the associated equipment to be used within auxiliary control circuits.

The 2NO + 2NC contact arrangement provides four auxiliary switching paths for appropriately designed control and signaling applications.

The normally open contacts close when the associated switching device operates, while the normally closed contacts open, according to the assembly's operating mechanism.

The screw terminal configuration provides a conventional wiring connection method for compatible industrial electrical control panels and automation equipment.

The Siemens SIRIUS product family is widely associated with industrial motor control, contactors, switching equipment, and electrical automation components.

The exact 3RH1921-1HA22 manufacturer part number supports accurate component identification and replacement matching for compatible Siemens SIRIUS assemblies.

This auxiliary contact block is a practical replacement component for industrial equipment maintenance, contactor servicing, electrical control panel repairs, and Maintenance, Repair, and Operations (MRO) applications.

Product Details

• Brand: Siemens
• Manufacturer: Siemens
• Product Family: SIRIUS
• Model / Part Number: 3RH1921-1HA22
• Product Type: Auxiliary Contact Block
• Number of Poles: 4
• Contact Configuration: 2NO + 2NC
• Normally Open Contacts: 2
• Normally Closed Contacts: 2
• Terminal Type: Screw Terminals
• Component Category: Industrial Contactor Accessory
• Function: Auxiliary Electrical Switching
• Application: Industrial Control and Contactor Assemblies
• Quantity: 1 Auxiliary Contact Block
• Condition: Seller Refurbished – Excellent Condition

Key Features & Benefits

• Siemens SIRIUS Series: Industrial electrical control component for compatible Siemens assemblies.
• Four-Pole Configuration: Provides four auxiliary contact switching paths.
• 2NO + 2NC Contacts: Two normally open and two normally closed contacts for compatible control circuits.
• Screw Terminals: Conventional electrical wiring connection method.
• Auxiliary Switching: Supports compatible signaling, interlocking, and control functions.
• Contactor Integration: Designed for use with matching Siemens SIRIUS switching equipment.
• Exact Model Identification: 3RH1921-1HA22 supports accurate replacement matching.
• Industrial Maintenance Component: Relevant for electrical control panel servicing and equipment repairs.
• Excellent Refurbished Condition: Quality industrial surplus component offered in the stated condition grade.

Applications

• Industrial electrical control panels
• Compatible Siemens SIRIUS contactor assemblies
• Motor control and starter circuits
• Industrial automation equipment
• Auxiliary control and signaling circuits
• Compatible electrical interlocking applications
• Manufacturing machinery control systems
• Electrical control cabinet maintenance
• Replacement of matching Siemens auxiliary contacts
• Maintenance, Repair, and Operations (MRO)

Included in This Listing

1 x Siemens SIRIUS 3RH1921-1HA22 Four-Pole Auxiliary Contact Block – 2NO + 2NC – Screw Terminals

QUANTITY: 1 AUXILIARY CONTACT BLOCK PER PURCHASE.

Additional contactors, wiring, mounting hardware, and accessories are included only when specifically stated or shown in the listing photographs.

Important Product Information

Please verify the Siemens 3RH1921-1HA22 part number, four-pole configuration, 2NO + 2NC contact arrangement, screw terminals, and compatibility with the intended Siemens SIRIUS contactor or control device.

Electrical Compatibility: Confirm the applicable contact voltage, current rating, utilization category, and wiring requirements from the manufacturer's specifications.

Mechanical Compatibility: Verify the mounting interface and supported contactor series before purchasing. SIRIUS accessories are not necessarily interchangeable across all Siemens contactor sizes or generations.

Installation: Follow applicable Siemens installation instructions and electrical safety requirements. Disconnect power before installing or replacing contactor accessories.

Photos are part of the item description.

Local Delivery

Local deliveries available, simply message us before purchasing so we can properly adjust the listing for you.

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• Delivery address
• Preferred delivery time
• Contact information

Shipping

Items are shipped via USPS and UPS upon receiving payment. If another shipping method is required, please contact us.

Expedited Shipping

We offer rush handling.

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Orders must be arranged and paid in full before 3:00 PM CST Monday-Friday.

Return Policy

We offer a 30-Day Money Back Guarantee.

Buyer pays return shipping on buyer-remorse returns. Returns are accepted within 30 days. Items must match the description and are sold as displayed.

For multiple quantity listings, the exact unit shown in the photos may not be the exact unit received.

International Customers

International customers outside the U.S. may be subject to customs or duty fees.

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