Schneider RHN412BA76 Harmony RHN plug-in control relay: checked facts and acceptance plan
RHN412BA76 identifies a Harmony RHN plug-in control relay. This page is a reference for identifying and quoting RHN412BA76; the common main image is a Schneider category collage, not a guaranteed picture of the exact unit. Read the complete designation on the installed component before selecting a replacement.
Identification passport
| Technical item | Verified value / selection note |
|---|---|
| Full designation | RHN412BA76 |
| Documented role | Harmony RHN plug-in control relay |
| Coil | 24 V DC |
| Contact arrangement | 4 changeover contacts |
| Contact current listing | 5 A |
Capture the entire reference and revision.
Check duty, mounting and connections.
Record the test and approved configuration.
Configuration boundary
The record above gives only the facts that can be supported for RHN412BA76. It does not decode every suffix or establish every rating of RHN412BA76. Ask for the original datasheet or configuration printout when the installed assembly includes options, firmware, a trip unit, a cable, a sensor or an interface card.
For RHN412BA76, compare the equipment tag and system drawings with the visible markings. Confirm supply, poles, contacts, protocol, measured range, nominal force or network role as applicable. Do not copy a value from a similar-looking code. If a number is missing, leave it open until the manufacturer record or actual nameplate resolves it.
Procurement and receiving notes
Request an offer for the exact RHN412BA76 designation and required quantity. The offer should identify stock condition, manufacturer, document revision, included accessories and any exclusions. If the supplier proposes an alternative to RHN412BA76, ask for a separate written comparison rather than silently accepting a different product family.
At receipt, inspect the RHN412BA76 label, packaging and supplied accessories. Keep the serial or batch number when present. For a protection, safety or control component, preserve the old settings and approved wiring design before the existing RHN412BA76 is removed.
Site acceptance
Install RHN412BA76 only under the applicable isolation and safety procedure. Commissioning must test the specific installed function: switching or protection behavior, relay I/O, sensor response, communication, valve travel or cabling continuity as relevant. A visual match does not prove that RHN412BA76 has the correct settings or compatibility.
Record the test result and exact RHN412BA76 code in the maintenance file. If the part is obsolete or service status differs by region, verify stock and approved migration path with the manufacturer. Keep a separate note for substitutions because the replacement may require engineering changes.
Related-looking references
These 1 designations resemble the RHN portion of RHN412BA76. They are gathered here for finding an enquiry only; a related-looking reference can have a different function, rating or interface and is not automatically interchangeable with RHN412BA76.
Release statement
Use RHN412BA76 as the search and purchase reference only when the verified identity and the site's requirements align. Review each unconfirmed configuration item before issuing an order. This RHN412BA76 record is an identification aid, not a substitute for the manufacturer manual or a site-specific engineering approval.
