Model matching
Specified models and equivalents
Equivalent means the same signal, range and protocol — not the same housing.
If the file names a brand we buy that brand. We only propose a change when the model is obsolete, out of stock, or the delivery will miss the ceiling or cabinet date.
Matching rules
- I/O: 0–10 V, 4–20 mA, NTC, dry contact, Modbus, BACnet.
- Range and accuracy class (sensors, CTs, meters).
- Supply, fluid, mounting.
- Maker papers: wiring diagram, register map — attached for the technical team to approve.
Do not take “the same shape” if the signal differs. On a live system we need the nameplate photo and the cabinet drawing.