Schneider RTL3U104 legacy PMU thermal-overload relay: technical buying checklist
RTL3U104 is the exact search and purchasing reference used on this page for the legacy PMU thermal-overload relay. The shared main-image collage represents the product category; it is not an exact photograph of RTL3U104. Identify the physical RTL3U104 item and its environment before committing to a supply order.
Verified technical starting points
| Technical item | Verified value / selection note |
|---|---|
| Enquiry designation | RTL3U104 |
| Identified role | legacy PMU thermal-overload relay |
| Current adjustment | 80–104 A in legacy Schneider catalog |
| Associated contactor | PMU95; verify fitted starter |
| Configuration boundary | Confirm full label, revision and site compatibility |
The technical table for RTL3U104 lists only points supported by the cited manufacturer or legacy product material. Any unstated suffix, revision, connector, electrical limit or approval for RTL3U104 remains an open verification item. Do not infer interchangeability from a similar-looking code.
A four-step buyer checklist
- Confirm the complete code and revision on the installed unit.
- List every required interface, accessory and approval.
- Compare the offered unit or proposed substitute in writing.
- Define receipt inspection and functional acceptance.
Start the RTL3U104 enquiry with a clear photograph of the nameplate and the original drawing. Include site location, quantity, condition required and delivery constraints. The supplier should quote the complete RTL3U104 reference and explicitly call out any difference from the installed unit.
System fit and application
The relevant neighbours of RTL3U104 may include a breaker frame, contactor, cable harness, communication rack, motor, HMI, battery system or software license. For RTL3U104, compare the actual interface in the application, not a generic family description. Check the documented voltage, current, mounting and software requirements only where they apply to this legacy PMU thermal-overload relay.
If a later-generation unit is offered in place of RTL3U104, require a manufacturer-supported cross-reference or a site engineering comparison. A recommended successor may still need new terminals, commissioning steps or revised approvals. Retain RTL3U104 in the audit trail even if the approved order uses another code.
Confirm identity, application fit, condition, supplier evidence and receiving plan before order release.
Inspection and handover
When RTL3U104 arrives, compare the label to the approved purchase record and inspect packaging and fitted accessories. A qualified technician should follow site isolation rules, verify the mechanical and electrical interfaces, and record the appropriate protection, signal, communication or operating test for RTL3U104.
File the RTL3U104 test result, serial or license information and any deviation approval with the equipment record. For a legacy RTL3U104 unit, separately confirm support status and whether the offered stock is new, used or refurbished. Warranty and acceptance conditions should reflect that distinction.
Visually related model strings
These remaining codes share a visible RTL3U pattern with RTL3U104. They are grouped only for search coverage; their manufacturer, function, ratings and compatibility are not automatically the same. Each complete code must be checked independently.
Decision record
Close the RTL3U104 enquiry only after the offer, technical comparison and receiving evidence agree. Preserve the exact RTL3U104 string in the final procurement file and make each accepted substitution explicit.
