Siemens 6SE6440-2UD24-0BA1
Plant PD · Line 2 · Hytrol E24 accumulation line stopper
Health
17/100 · medium confidenceReplace soon
Remaining life: 0.3–0.5 years
Anomaly detectionseverity 0.00
| vs. expected for load + ambient | -0.1 °C |
| EWMA shift (days out of control) | 3 |
| CUSUM drift (alarm at 5) | 0.0 |
| Trend °C/month (t) | 0.2 (0.9) |
| Motor current (Mahalanobis, alarm at 3) | 0.6 |
Based on: Motor current sensor · Label date code (age floor) · Cabinet thermal camera (continuous) · 90-day temperature history (statistical anomaly detection) simulated sensor data
Life used since install (1999)
274%
Expected end of life: 2027 (middle of the typical life range)
discontinued MICROMASTER 440
Recommended action
Reserve the spare at Lima now; it can be here in ~7 days. Plan migration to 6SL3210-1KE21-3UF1.
Order by: February 2027
Fastest delivery: ~4 days + 14-day safety buffer before expected end of life
Financial view
Downtime exposure: $29,050–$179k / yr
83% chance of failing this year × 80–176 h down × line cost per hour
Money model says: buy spare
line-stopping, discontinued, no shelf spare it can use; 2 trusted listing(s), buy one before it fails
Part value (real listings): $900–$1,510
Where to get one (8 options)
| Source | Seller | Condition | Price | Delivery | Warranty | Trust |
|---|---|---|---|---|---|---|
| Shelf, another plant Recommended | Lima · qty 1 “VFD SIEMENS MM440 4KW 480” | on the shelf | already owned | 7 days | - | 100 |
| Marketplace | eBay seller (97.1% positive, 2582 sales) not authorized: counterfeit risk, test on arrival | used | $630 +$80 ship | 7 days | 0 mo | 68 sample listing |
| Surplus dealer | Surplus dealer D not authorized: counterfeit risk, test on arrival | used | $760 +$80 ship | 4 days | 3 mo | 69 sample listing |
| Marketplace | eBay seller (99.1% positive, 1128 sales) not authorized: counterfeit risk, test on arrival | used | $760 +$25 ship | 12 days | 0 mo | 57 sample listing |
| Refurbisher | Industrial refurbisher D not authorized: counterfeit risk, test on arrival | refurbished | $900 +$80 ship | 4 days | 24 mo | 86 sample listing |
| Successor, from manufacturer 6SL3210-1KE21-3UF1: needs migration | Authorized distributor D | new | $1,040 +$80 ship | 110 days | 12 mo | 95 sample listing |
| Successor, from manufacturer 6SL3210-1KE21-3UF1: needs migration | Manufacturer direct E | new | $1,230 +$25 ship | 96 days | 12 mo | 98 sample listing |
| Refurbisher | Industrial refurbisher F not authorized: counterfeit risk, test on arrival | new surplus | $1,510 +$45 ship | 6 days | 24 mo | 85 sample listing |
Recommended order: a spare already on a shelf, then the manufacturer or your usual authorized distributor (for discontinued parts, the official successor), then other sources. Sample listings are illustrative until real marketplace data is connected.
Evidence
The label photo image recognition read:
PD-IMG0093 · rendered photo · quality: ok
Image recognition read: 6SE6440-2UD24-0BA1 A
Read confidence 0.9 · overall 0.9 · reviewer not yet reviewed
Lifecycle source and alternatives
MICROMASTER 440 inverter 4kW 400V
Official successor: 6SL3210-1KE21-3UF1
Source (official): https://mall.industry.siemens.com/mall/en/sencomautomaticsltd/Catalog/…
- 6SL3210-1KE21-3UF1 · successor · migration: new firmware/program conversion, wiring and mounting check