IDEC RH2B-U-AC120V
Plant PA · Line 1 · Komatsu OBS 150-2 line stopper
Health
1/100 · medium confidenceReplace ASAP
Remaining life: 0–0 years
- runs at 65°C, +20°C vs. its 45°C design point: ages 4.1× faster
- temperature shift: 22 day(s) above the EWMA control limit, now +18°C vs. expected for its load and ambient
- slow warming: CUSUM 342 (alarm at 5)
- warming +11.9°C/month beyond expected (t = 10.4)
Anomaly detectionseverity 1.00
| vs. expected for load + ambient | +18.1 °C |
| EWMA shift (days out of control) | 22 |
| CUSUM drift (alarm at 5) | 341.5 |
| Trend °C/month (t) | 11.9 (10.4) |
Based on: Label date code (age floor) · Cabinet thermal camera (continuous) · 90-day temperature history (statistical anomaly detection) simulated sensor data
Life used since install (2002)
491%
Expected end of life: 2026 (middle of the typical life range)
discontinued RH series
Recommended action
Discontinued: order the successor RH2B-UAC110-120V from the manufacturer or your usual distributor now (~$8.60 each + migration work). A used or refurbished RH2B-U-AC120V is only a stopgap.
Order by: Now: it's overdue
Fastest delivery: ~35 days + 14-day safety buffer before expected end of life
Financial view
Downtime exposure: $83,160–$624k / yr
99% chance of failing this year × 160–400 h down × line cost per hour
Money model says: migrate
discontinued with no trusted listings: plan the move to an alternative
Where to get one (6 options)
| Source | Seller | Condition | Price | Delivery | Warranty | Trust |
|---|---|---|---|---|---|---|
| Successor, from manufacturer Recommended RH2B-UAC110-120V: needs migration | Jackson Systems | new | $9 | - | none | - |
| Successor, from manufacturer RH2B-UAC110-120V: needs migration | Standard Electric Supply | new | $10 | - | none | - |
| Successor, from manufacturer RH2B-UAC110-120V: needs migration | Steiner Electric | new | $11 | - | none | - |
| Successor, from manufacturer RH2B-UAC110-120V: needs migration | ICHOME | new | $12 | - | none | - |
| Successor, from manufacturer RH2B-UAC110-120V: needs migration | IBS Electronics | new | $17 | - | none | - |
| Refurbisher | Radwell not authorized: counterfeit risk, test on arrival | new surplus | - | - | none | - |
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

PA-IMG0004 · rendered photo · quality: ok
Image recognition read: RH2B-U-AC120V C
Read confidence 0.95 · overall 0.95 · reviewer not yet reviewed
Lifecycle source and alternatives
Power relay, DPDT 10 A, 120 VAC coil, plug-in
Official successor: RH2B-UAC110-120V
Source (distributor): https://datasheets.globalspec.com/ds/idec/rh2b-u-ac120v/841ef4fd-5860-…