OT400E03 in the installed application
The full OT400E03 marking belongs on the enquiry and the receiving inspection. OT400E03 is a 400-ampere manual switch-disconnector whose suitability depends on the actual connected process, circuit or control project.
Technical parameters
| Technical item | Verified value / selection note |
|---|---|
| Complete designation | OT400E03 |
| Product family | OT400E03 |
| Component role | 400-ampere manual switch-disconnector |
| Rated current | 400 A |
| Poles | 3 |
| Operation | Manual on/off isolation |
| Accessories | Check handle, shaft and auxiliary contacts separately |
| Final configuration | Confirm exact nameplate, hardware revision and order options before purchase |
Read these OT400E03 parameters together with the nameplate and the manufacturer's option data. The short family label does not establish every rating or installed accessory.
Application snapshot
The intended function of OT400E03 is: Isolate the approved feeder or drive line within the switchgear assembly. Record the real process or electrical duty and the equipment that sends or receives the signal.
For OT400E03, note any site condition that changes selection: mounting position, ambient temperature, load profile, supply quality, hazardous-area conditions or the existing communication project.
Questions for the quotation
Ask the supplier to confirm this OT400E03 match: Confirm duty category, voltage, prospective fault level, terminals, shaft and handle placement. Attach the installed full code and relevant drawings to the enquiry.
A similar item is not automatically equivalent to OT400E03. Ask for a written comparison of ratings, interfaces, terminals, dimensions, options and required firmware or settings.
How to prepare the replacement
Before working on OT400E03, follow the plant's isolation or process-shutdown procedure. Photograph or record terminal positions, accessory parts, settings and current indications.
For OT400E03, compare the delivered identification with the approved order. Fit only the required components and restore an approved backup rather than recreating settings from memory.
What to observe on startup
The acceptance test for OT400E03 is: Verify all-pole switching, operating position, door interlock and terminal torque. Compare measured results and indications with the commissioning record.
If OT400E03 forms part of a protective function, verify fault response and reset in addition to normal operation. Keep the final readings and sign-off with the maintenance file.
Other designations in this family
The following OT400E03 codes are gathered with OT400E03 for search and purchase enquiries. They can differ in sensor, coil, rating, pole count, communication or accessories. Check each complete code; they are not automatically direct replacements.
No other unassigned OT400E03 code is grouped with OT400E03 here.
Receiving checklist
When OT400E03 arrives, compare the marked code, revision and included accessories with the order. Record any variance before the equipment is installed.
Retain the OT400E03 technical document, inspection and commissioning result with the asset record so the next replacement can be matched accurately.
