SIEMENS
SIEMENS 3RV29011E Transverse Contact Block 1NC/1NO
Transverse auxiliary contact block with one normally open and one normally closed contact for SIRIUS 3RV2 motor starter protectors
- 1 NC and 1 NO contact for flexible control circuits
- Screw terminals for secure wiring
- IP20 rating protects against solid objects
- Designed for SIRIUS 3RV2 motor starter protectors
- Auxiliary block adds two contacts to starter
SIEMENS 3RV29011E Transverse Contact Block
This auxiliary contact block adds two contacts to a SIRIUS 3RV2 motor starter protector. It provides one normally open and one normally closed circuit for signalling or control tasks. The block mounts transversely on the starter protector body. It is intended for panel builders and maintenance engineers expanding starter functionality.
Screw Terminal Wiring
The block uses screw terminals for secure conductor connection. This method allows straightforward installation with standard hand tools and reliable termination for control wiring. No special tooling or software configuration is required. The IP20 rating indicates finger-safe terminal protection.
Contact Capacity and Limits
The unit supplies exactly two auxiliary contacts, one normally open and one normally closed. It suits applications needing a single changeover signal pair for status indication or interlocking. Circuits requiring more than two auxiliary contacts or a different contact arrangement cannot use this block alone.
Highlights
- 1 NC and 1 NO contact for flexible control circuits
- Screw terminals for secure wiring
- IP20 rating protects against solid objects
- Designed for SIRIUS 3RV2 motor starter protectors
- Auxiliary block adds two contacts to starter
Specifications
| Brand | SIEMENS |
|---|
Questions about this item
How often will the screw terminals on this 3RV29011E block need re-torquing?
The block uses screw terminals rated IP20; periodic inspection and re-torquing to the manufacturer's specification is the only routine maintenance required.
Which rating limits continuous operation first — the IP20 ingress protection or the contact switching capacity?
The contact switching capacity of the 1 NO / 1 NC auxiliary contacts determines the electrical limit; IP20 only defines the enclosure protection level.
Does the block generate noticeable heat or noise when mounted on a 3RV2 starter running all day?
As a passive auxiliary contact block it produces no audible noise and negligible heat; thermal load comes from the main starter, not this accessory.
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