U.S. RFQ Buyer Guide
What to include when requesting PLC, HMI, drive, relay, sensor, and control component quotes.
Guide scope
For: Controls engineers, system integrators, panel builders, maintenance teams, and automation procurement buyers.
Outcome: An automation-component RFQ that preserves configuration details which are often lost when only the family name is supplied.
Reviewed by PartsGo: 2026-07-02
Record the controller family, complete module reference, hardware revision, firmware where visible, supply requirement, and the rack or network context. Modules with similar names can differ by channel type, connector, protocol, conformal coating, or regional approval.
For operator panels and drives, include the exact reference and describe the installed system. Display size, supply voltage, communication option, power rating, feedback type, safety option, and software generation can affect replacement review.
Capture sensing principle, range, output type, connection, supply, housing, and safety function where applicable. A matching body style does not establish equivalent electrical behavior or safety certification.
Catalog presence is not a live-stock, fixed-price, compatibility, or distributor-status claim.
Buyer FAQ
They can affect program compatibility, communication behavior, supported functions, and the steps required to replace or commission a control component.
No. The electrical interface, protocol, ratings, firmware, safety function, and mechanical fit must be checked.
Useful evidence can include nameplate photos, electrical drawings, a bill of materials, machine manuals, drive parameters, and HMI or PLC backup details when sharing them is permitted.