Turbine & Rotating Machinery Protection Solution – BENTLY NEVADA 3500/15E | 3500 Series
Where This Product Is Used
The Bently Nevada 3500/15E is the dedicated rack power supply module for the 3500 Series Machinery Protection System — the industry benchmark for continuous vibration monitoring and machinery health management. This module is deployed in mission-critical rotating equipment protection applications across global heavy industries:
- Gas & Steam Turbines — Main power generation units at utility and combined-cycle plants; provides uninterrupted DC power to the entire 3500 rack during turbine run-up, steady-state, and trip events.
- Centrifugal & Axial Compressors — Upstream/midstream oil & gas compression trains; sustains protection system integrity during surge events and emergency shutdowns.
- Pumps & Fans (Large Frame) — Boiler feed pumps, cooling water pumps, and forced-draft fans in power plants and petrochemical facilities.
- Gearboxes & Expanders — High-speed rotating equipment in LNG, refinery, and chemical plant service.
- Marine Propulsion Systems — Shipboard turbine and compressor protection racks requiring redundant power architecture.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 3500/15E |
| Series | Bently Nevada 3500 Machinery Protection System |
| Module Type | Rack Power Supply |
| Input Voltage (AC) | 85–264 VAC, 47–63 Hz (universal input) |
| Input Voltage (DC) | 88–300 VDC |
| Output Voltage | +5 VDC, ±15 VDC, +24 VDC (rack bus) |
| Redundancy Support | Hot-swap redundant (dual PSU configuration) |
| Rack Compatibility | 3500 Standard & Enhanced Racks |
| Form Factor | Single-slot rack module |
| Operating Temperature | -20°C to +65°C |
| Weight | 1,420 g |
| Approvals | CE, UL, CSA, ATEX (zone-dependent configuration) |
Why Engineers Specify This Model
- Hot-Swap Redundancy: Dual 3500/15E modules operate in parallel — one can be replaced under power without interrupting machinery protection, eliminating planned downtime for PSU maintenance.
- Universal AC/DC Input: Accepts wide-range AC and DC supply, making it compatible with both utility grid and UPS/battery-backed DC bus installations without additional converters.
- Seamless Rack Integration: Designed exclusively for the 3500 rack backplane; plug-and-play replacement with no firmware configuration required.
- High MTBF: Engineered for continuous 24/7 operation in harsh industrial environments — high ambient temperature, vibration, and EMI-rich control rooms.
- Proven Field History: Tens of thousands of units deployed globally across Baker Hughes / GE Vernova installed base since the 3500 platform launch.
Complete System Bill of Materials
The 3500/15E is one component of a complete Bently Nevada 3500 protection rack. A typical turbine protection system BOM includes:
- 3500/15E — Rack Power Supply (this module; quantity 1–2 for redundancy)
- 3500/20 or 3500/22M — Rack Interface Module (RIM)
- 3500/25 — Keyphasor Module
- 3500/40M — Proximitor / Seismic Monitor (radial vibration)
- 3500/42M — Proximitor / Seismic Monitor (axial position)
- 3500/45 — Position Monitor
- 3500/50M — Tachometer Module
- 3500/92 — Communication Gateway Module (Modbus / Ethernet)
- 3500 Rack Chassis (19-inch, 4U or 7U)
- Bently Nevada 3300 / 3500 Series Proximity Probes & Extension Cables
Contact support@konmask.com for complete rack BOM quotations and cross-reference assistance.
Compliance & Industry Standards
- API 670 — Machinery Protection Systems (5th Edition): The 3500 platform, powered by the 3500/15E, is the reference implementation for API 670-compliant protection systems.
- IEC 61511 / IEC 61508 — Functional Safety (SIL): Supports SIL-rated safety instrumented system architectures when configured per Baker Hughes safety manual.
- IEEE 1686 — Cyber Security for Intelligent Electronic Devices.
- CE / UL 508 — Industrial Control Equipment.
- ATEX / IECEx — Hazardous area compliance available for applicable rack configurations.
Quality Assurance & Sourcing
Konmask.com sources the 3500/15E through verified industrial automation supply channels. Every unit offered undergoes the following quality process before dispatch:
- Visual & Physical Inspection: Connector integrity, PCB condition, label authenticity, and housing checked against OEM reference standards.
- Functional Power-On Test: Output voltage rails verified under load prior to shipment where test infrastructure permits.
- Serialization Verification: Serial number and firmware revision documented and provided with shipment records.
- Secure Packaging: ESD-safe anti-static bags, foam-lined cartons, and moisture-barrier packaging for international freight.
- Documentation Package: Certificate of conformity, inspection report, and packing list included with every order.
How to Source This Part
- Request a Quote: Email support@konmask.com with your required quantity, delivery timeline, and destination country.
- Phone / WhatsApp: +0086 19859288691 — direct line for urgent procurement and technical pre-sales questions.
- Lead Time: Ex-stock units ship within 3–5 business days; sourced units typically 2–4 weeks depending on origin.
- Payment Terms: T/T bank transfer, PayPal, and trade assurance options available for qualified buyers.
- Export Compliance: We handle export documentation, HS code classification, and commercial invoice preparation for international shipments.
Application-Specific FAQ
Q: Can the 3500/15E be replaced while the rack is powered and the machine is running?
A: Yes — when a second 3500/15E is installed in the redundant PSU slot, the failed module can be hot-swapped without interrupting protection system operation or triggering a machinery trip.
Q: Is the 3500/15E compatible with both the original 3500 rack and the Enhanced rack?
A: Yes. The 3500/15E is backward-compatible with all standard 3500 rack chassis variants. Verify your rack revision with Bently Nevada documentation or contact us for cross-reference support.
Q: What is the difference between the 3500/15 and the 3500/15E?
A: The 3500/15E is the enhanced revision featuring wider input voltage range (including DC input capability) and improved EMC performance compared to the earlier 3500/15. The 3500/15E is the current production standard and is backward-compatible as a drop-in replacement.
Q: Do you supply the full 3500 rack system or individual modules only?
A: Both. Konmask.com can supply individual replacement modules or complete pre-configured 3500 rack assemblies. Contact us with your system requirements for a full BOM quotation.
Q: Can this unit be used in a SIL 2 safety loop?
A: The 3500 platform supports SIL-rated architectures. Consult the Baker Hughes / Bently Nevada Safety Manual for the 3500 system and engage your functional safety engineer for loop-level SIL verification.
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Contact: support@konmask.com | +0086 19859288691






