Bently Nevada 3500/15-05-05-00 Universal AC Power Supply Module

Technical Specifications
Input range : 85–264 Vac rms or 120–340 Vdc
Nominal output : 24 Vdc ±1 %, 15 A, 360 W
Hold-up time : >20 ms at 115 Vac / full load
Efficiency : >85 % @ 230 Vac, typical
Power factor : >0.95 (active PFC)
Inrush current : <20 A peak cold start
Ripple & noise : <50 mV pp (20 MHz BW)
Isolation : 1 500 Vac input-to-output, 1 500 Vac input-to-ground
Protection : overload, short-circuit, over-voltage, thermal shutdown with auto-recovery
MTBF : >200 000 h @ 45 °C per MIL-HDBK-217F
Operating temperature : –40 °C to +70 °C full power, derated to 50 % at +85 °C
Storage temperature : –55 °C to +125 °C
Humidity : 5 %–95 % non-condensing
Shock / vibration : 15 g half-sine 11 ms; 2 g sinusoidal 5–500 Hz operational
Enclosure : IP20 front, UL 94 V-0 polycarbonate, flame-retardant
Dimensions : 241 mm × 128 mm × 51 mm (9.5″ × 5.0″ × 2.0″)
Weight : 1.39 kg (3.06 lb)
Agency approvals : CE, UL/cUL Listed (UL 508), IECEx & ATEX Zone 2, ABS marine, RoHS

Category:
Description
Functional Highlights
Dual redundancy – two modules share load current; if either fails the second instantly assumes 100 % power without rack interruption
Hot-swappable – insertion/extraction under power without disturbing field wiring or measurement channels
Front LED bar-graph – indicates input presence, output healthy, fan status and thermal reserve at a glance
Remote sense pins – compensate for up to 0.5 Vdc drop on rack back-plane for precise 24 V delivery
Built-in OR-ing diodes – eliminate external blocking diodes when paralleling supplies
Health reporting – power-good discrete and 3500 rack-resident temperature/fan data accessible via Modbus, Ethernet or OPC gateways
Soft-start & current fold-back – prevents nuisance tripping of upstream breakers during rack power-up
Application Scenarios
– Turbo-generator sets in fossil, nuclear and combined-cycle plants – powers vibration, eccentricity and valve-position monitors
– LNG and refinery centrifugal/axial compressors – ensures uninterrupted protection during 24/7 operation
– Offshore drilling topside and subsea HIPPS packages – certified for saline, vibration-rich environments
– Petrochemical integrally geared compressors – supports high-density 3500 racks with 30+ monitoring modules
– Pipeline gas-turbine drivers – dual-supply configuration meets API 670 hot-swap and redundancy clauses
– Steel mill blast-furnace blowers – withstands dust, 70 °C ambient and heavy magnetic fields
– Wind-turbine test stands – wide input range accepts both 115 Vac lab and 230 Vac field mains
Installation & Maintenance
Slides into the left-most slot of any 3500 rack; captive screws provide chassis earth bond. Auto-ranged input removes voltage-selector errors. A quick-disconnect terminal block accepts 12 AWG–2.5 mm² stranded wire. Internal long-life ball-bearing fan is field-replaceable in <2 min without tools. Predictive fan-end-of-life alarm gives 30-day advance notice via rack alarm relays and HMI.
Compatibility
Fully backward-compatible with all 3500/05, 3500/20, 3500/22M, 3500/25, 3500/32, 3500/33, 3500/40M, 3500/42M, 3500/44M, 3500/45, 3500/46M, 3500/50 and 3500/60 series monitors; no firmware dependencies.
Ordering Reference
3500/15-05-05-00 – Universal AC, 24 Vdc, 15 A, IECEx/ATEX, UL, single module
3500/15-05-05-00-R – Same as above, factory-configured left/right redundant pair shipped with load-sharing cable kit
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