Choosing ZBG455 Harmony replacement key set for an installed system
Use the full ZBG455 designation when discussing this Harmony replacement key set with a supplier or engineer. The Schneider category main image is a shared reference collage, not an exact photo of ZBG455. The table records limited confirmed facts; the site-specific decision requires the current product document and installed-system information.
Verified technical reference
| Technical item | Verified value / selection note |
|---|---|
| Complete model | ZBG455 |
| Product identity | Harmony replacement key set |
| Component | Replacement key |
| Key number | 455 |
| Package | Two keys in Schneider product listing |
Where the item fits
The selection question for ZBG455 is not simply whether the code looks familiar. Identify its actual role as Harmony replacement key set, the equipment it connects to, and the site operating conditions. Verify lock/operator key number before ordering. Record any missing interface value as a question to verify rather than filling it from a neighboring model.
Keep ZBG455 in the equipment schedule with the intended host, panel or circuit. A shared product picture can show the general category, but it cannot verify terminal layout, voltage, current, firmware or mechanical dimensions of the delivered ZBG455.
Mating and integration checks
Before ordering ZBG455, compare electrical supply, protection, signals or communication settings where relevant. Confirm mechanical installation, mating connector and accessory dependencies. If an engineering drawing refers to another code, obtain an approved cross-reference before substituting ZBG455.
For maintenance replacement, capture the original nameplate and any revision label. Compare the complete string with ZBG455; a changed suffix can alter a component's function. Review thermal, environmental and safety limits with the manufacturer's exact documentation, not with a general family image.
Quotation and receiving controls
Ask for an offer naming ZBG455 exactly, with quantity, destination, lead time and current data sheet. Clarify whether a cable, fuse, mounting part, software or other accessory is included. If ZBG455 is discontinued, ask for a documented alternative and evaluate its differences before purchase.
When ZBG455 arrives, inspect package condition and label. Confirm that the full marking matches the approved order, photograph it and record the supplier's reference. Quarantine a unit labelled differently from ZBG455 until the substitution has been reviewed.
Installation and acceptance
Install ZBG455 under the applicable safe-isolation and manufacturer's instructions. Record relevant setting values, wiring, mounting and connected equipment. A functional test should demonstrate the intended role of ZBG455 without relying on code appearance alone.
Retain the final ZBG455 designation, the tested configuration and the location in the maintenance record. This allows a later buyer to distinguish the installed item from a similar-looking spare. Any change from ZBG455 should remain traceable to engineering approval.
Look-alike catalogue references
No additional unassigned ZBG-pattern code is indexed under ZBG455. Any proposed alternate still requires its own identity and fit check.
Selection conclusion
Approve ZBG455 only when the verified product facts, installation interface and quotation agree. Keep the complete ZBG455 phrase in the purchase order and acceptance record; do not treat a near-looking designation as interchangeable without manufacturer and engineering evidence.
