1 NO + 1 NC Contacts
Provides one normally open and one normally closed instantaneous auxiliary contact.
SIEMENS 3RH5921-1DA11 Auxiliary Contact Block 1NO+1NC 2-Pole
Available in stock (400)
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$12.37
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Technical Specifications
| Brand | SIEMENS |
| Model Number | 3RH5921-1DA11 |
| Product Category | Auxiliary Contact Block |
| Product Brand Name | SIRIUS |
| Contact Configuration | 1 NO + 1 NC |
| Number of Poles | 2 |
| Mounting Position | Lateral |
| Mounting Method | Snap-On Mounting |
| Electrical Connection | Screw-Type Terminals |
| Applicable Contactor Sizes | S0...S12 |
| Standard | DIN EN 50005 |
| Width | 10 mm |
| Dimensions | 80 × 10 × 71 mm |
| Front Protection Rating | IP20 |
| Operating Temperature | -25°C to +60°C |
Key Features
2-Pole Configuration
The auxiliary contact block uses a documented 2-pole contact configuration.
Lateral Mounting
Designed as the first laterally mountable auxiliary switch for applicable contactor installations.
Screw-Type Terminals
Auxiliary and control circuit connections use screw-type terminals.
10 mm Width
The documented product width is 10 mm, with overall dimensions of 80 × 10 × 71 mm.
IP20 Front Protection
Manufacturer technical data specifies an IP20 protection rating on the front.
Applications
- Contactor auxiliary signaling circuits
- Motor control panel status indication
- Control circuit contact expansion
- Electrical interlocking circuits
- Industrial machine control circuits
- Contactor feedback signaling
- Control cabinet switching circuits
- Industrial equipment maintenance projects
Purchase Information
We support online purchase of the SIEMENS 3RH5921-1DA11 Auxiliary Contact Block. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is SIEMENS 3RH5921-1DA11?
SIEMENS 3RH5921-1DA11 is a SIRIUS auxiliary contact block with one normally open and one normally closed instantaneous contact.
What contact configuration does 3RH5921-1DA11 use?
It provides 1 NO + 1 NC auxiliary contacts in a 2-pole configuration.
How is 3RH5921-1DA11 mounted?
Manufacturer technical data identifies it as a laterally mountable auxiliary switch with snap-on mounting.
What terminal type does 3RH5921-1DA11 use?
The auxiliary and control circuit connection uses screw-type terminals.
What standard is specified for 3RH5921-1DA11?
The product description specifies DIN EN 50005.
What are the dimensions of 3RH5921-1DA11?
The documented dimensions are 80 mm high, 10 mm wide and 71 mm deep.
What is the front protection rating?
Manufacturer technical data specifies IP20 protection on the front.
What is the operating temperature range?
The documented operating ambient temperature range is -25°C to +60°C.
What contactor sizes are identified for this auxiliary contact block?
The manufacturer product description identifies sizes S0...S12 for motor contactor use.
What applications can 3RH5921-1DA11 be considered for?
It can be considered for auxiliary signaling, status indication, interlocking and control circuit functions after the system requirements have been checked.
What should be verified before using 3RH5921-1DA11 in an existing system?
Check the complete model number, contact configuration, mounting arrangement, terminal requirements and electrical ratings against the existing system requirements.
What should be checked before ordering?
Verify the complete 3RH5921-1DA11 model number, 1 NO + 1 NC configuration, lateral mounting requirement, screw-terminal connection and applicable contactor requirements before purchasing.
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