Description
Bently‑Nevada 3500/15‑02‑02‑00 Redundant Legacy High‑Voltage AC Power Supply Assembly (129486‑01 + 125840‑01)
Product Description
The 3500/15‑02‑02‑00 is dual‑redundant legacy high‑voltage AC power supply set for Bently‑Nevada 3500‑series machinery‑protection rack本特利. The full assembly consists of front legacy high‑voltage AC power conversion board 129486‑01 and rear power‑input PIM module 125840‑01.
This half‑height power unit converts 175‑264 Vac mains into multi‑rail regulated DC power to feed all monitor, relay, communication and Keyphasor modules across the 3500 rack. The suffix‑02‑02 configuration represents dual legacy high‑voltage AC power supplies: primary unit installs in lower‑left dedicated slot, backup unit occupies upper‑left dedicated slot of rack chassis. Hot‑swap is supported; single power unit is capable of powering the entire rack, failure of one unit will not interrupt machinery‑protection operation.
Critical compatibility note: This is legacy high‑voltage AC power, not interchangeable with later‑generation universal‑AC power supply (3500/15‑05‑05‑00, 106M1079‑01+106M1081‑01). Front main‑board and rear PIM must always be deployed as matched‑pairs. OEM production discontinued; available only as aftermarket replacement spare for legacy turbomachinery TSI racks。
Order code breakdown：3500/15‑02‑02‑00‑02：Top‑slot power = Legacy High‑Voltage AC input (175‑264 Vac)‑02：Bottom‑slot power = Legacy High‑Voltage AC input (175‑264 Vac)‑00：No third‑party safety agency certification
Technical Specifications
| Item | Specification |
|---|---|
| Complete Assembly PN | 3500/15‑02‑02‑00 (129486‑01 +125840‑01 per unit, dual‑unit redundant set) |
| Front Power Main Board | 129486‑01 Legacy High‑Voltage AC power conversion module |
| Rear PIM Input Module | 125840‑01 Legacy High‑Voltage AC power‑input interface board with fuse protection |
| Form Factor | Half‑height module; occupies two dedicated half‑height slots on left‑hand side of 3500 rack for redundant deployment |
| AC Input Range | 175‑264 Vac RMS, 47‑63 Hz本特利 |
| Peak Input Voltage | 247‑373 Vac peak |
| Max Input Current | 2.6 A RMS typical |
| Output | Multiple regulated DC rails for rack backplane bus, sufficient for full‑rack loading |
| Redundancy Mode | Dual parallel hot‑standby; lower‑slot = primary, upper‑slot = backup; single unit can drive full rack load |
| Hot‑swap Support | Yes, hot‑swappable under rack powered‑on condition when redundant unit remains healthy |
| Protection | Rear PIM onboard input fuse protection; under‑voltage lockout |
| Front‑panel Indicator | SUPPLY‑OK LED for local power‑health visual indication |
| Diagnostic | Power‑supply fault events logged to rack event‑log via backplane bus |
| Operating Temperature | ‑30 °C ~ +65 °C (‑22 °F ~ +149 °F) |
| Storage Temperature | ‑40 °C ~ +85 °C (‑40 °F ~ +185 °F) |
| Relative Humidity | 5‑95 % RH, non‑condensing |
| Dimension per unit(H×W×D) | 241.3 mm ×12.2 mm ×241.8 mm (9.50 in ×0.48 in ×9.52 in) |
| Approximate Total Weight | 1.39 kg per complete power unit (main‑board + PIM) |
| Product Status | Discontinued OEM production, aftermarket spare‑part only |
Variant note‑01：Legacy Low‑Voltage AC input (85‑132 Vac)‑02：Legacy High‑Voltage AC input (this model)‑05：New‑generation Universal‑AC input (85‑264 Vac, replacement model 3500/15‑05‑05‑00)
Key Features & Benefits
- Legacy high‑voltage AC input: Designed for 220/240Vac industrial mains applications, widely deployed on early‑generation 3500 rack installations.
- Dual redundant hot‑standby architecture: Two complete power‑supply assemblies operate in parallel. Primary‑unit failure triggers seamless switch‑over to backup without machinery‑protection interruption, improving system availability for critical rotating equipment.
- Hot‑swap maintainability: Individual power‑supply unit can be inserted / removed while rack remains online, TSI system shutdown is not required for power‑supply maintenance when redundant partner is functional.
- Hardware fuse protection & diagnostic logging: Rear PIM integrates input fuse for fault isolation; front‑panel SUPPLY‑OK LED provides local health status, fault conditions are time‑stamped and stored inside rack event‑log for remote diagnostic review.
- Internal‑barrier grounding configurable: On‑board hardware jumpers support internal‑barrier grounding setup when rack is fitted with 3500/04‑01 earthing module and intrinsic‑safe monitor cards for hazardous‑area field instruments.
- Backward‑compatible maintainable architecture: Works with legacy 3500 monitor modules; cannot electrically mix with universal‑AC power‑supply assemblies. Front main‑board and rear PIM must always be matched‑pair to avoid hardware damage or abnormal operation.
Application Fields
‑ Power‑generation, petrochemical and natural‑gas facilities: primary redundant power source for legacy 3500 machinery‑protection racks for steam‑turbine, gas‑turbine, centrifugal‑compressor and reciprocating‑compressor monitoring systems.‑ Critical rotating‑machinery projects requiring high‑availability redundant power fed from 220‑240Vac industrial power grid.‑ Spare‑part replacement and system retrofit for existing legacy 3500 racks originally equipped with dual legacy high‑voltage‑AC redundant power configuration 3500/15‑02‑02‑00.
Related Recommended Products
‑ 3500/05 series: 3500 rack chassis; power supplies must install to designated left‑hand half‑height slots.‑ 3500/04‑01‑00: Internal‑barrier earthing module for hazardous‑area IS‑system configuration.‑ 3500/22 / 3500/22M TDI: Rack gateway for reading power‑supply diagnostic status and downloading event‑log records.‑ 3500 monitor family: 3500/40, 3500/42, 3500/50, 3500/60, 3500/70, 3500/33, 3500/92 etc., load modules powered by 3500/15 power‑supply.
Installation and Maintenance
Installation
- Assemble front main‑board 129486‑01 and matched rear PIM module 125840‑01 as a complete unit. Populate lower‑left designated rack slot as primary supply, populate upper‑left designated slot as backup redundant supply for 3500/15‑02‑02‑00 configuration.
- If rack is configured for internal‑barrier intrinsic‑safety application, adjust on‑board jumpers according to official manual.
- Connect site high‑voltage AC mains wiring to screw terminals on rear‑side 125840‑01 PIM module, comply with local electrical safety specifications.
- Apply AC input power; verify SUPPLY‑OK LED illuminates on both power‑supply front panels. Inspect rack event‑log for power‑supply‑related diagnostic alarms, confirm all rack monitor modules boot normally.
Important Note: Hot‑swap operation is valid only when redundant partner power‑supply is healthy. Never hot‑swap the last remaining working power‑supply unit; this will cause full‑rack power‑loss and machinery‑protection‑system shutdown. Legacy high‑voltage‑AC power assemblies must not be mixed with universal‑AC power components.
Maintenance
- Periodically inspect rear‑PIM AC‑input terminals for dust accumulation, corrosion and loose wiring connections; check front‑panel SUPPLY‑OK LED status during routine site walk‑down.
- Regularly download and review rack event‑log for power‑supply fault, under‑voltage or fuse‑blow diagnostic alarms.
- In dual‑redundant configuration, faulted power‑supply unit supports online hot‑swap. After replacement, confirm SUPPLY‑OK LED is active and no power‑relevant alarms exist inside rack event‑log.
- Avoid mechanical shock and conductive contamination during module‑handling. Refer to Bently‑Nevada official document Doc‑141530 (3500/15 Power‑Supply Datasheet & Manual) for full installation constraints, jumper‑setting procedure and detailed troubleshooting guidance.
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