Specification record for KDC1S Harmony K keyed cam-switch operating head
KDC1S identifies a Harmony K keyed cam-switch operating head. This page is a reference for identifying and quoting KDC1S; 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 | KDC1S |
| Documented role | Harmony K keyed cam-switch operating head |
| Front mounting | 22 mm |
| Legend plate | 45 x 45 mm |
| Operator | Key-operated head |
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 KDC1S. It does not decode every suffix or establish every rating of KDC1S. 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 KDC1S, 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 KDC1S 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 KDC1S, ask for a separate written comparison rather than silently accepting a different product family.
At receipt, inspect the KDC1S 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 KDC1S is removed.
Site acceptance
Install KDC1S 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 KDC1S has the correct settings or compatibility.
Record the test result and exact KDC1S 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
No additional unassigned KDC-pattern designation is indexed with KDC1S. A possible variant still needs its own exact-code check.
Release statement
Use KDC1S 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 KDC1S record is an identification aid, not a substitute for the manufacturer manual or a site-specific engineering approval.
