Description
Product Introduction
The Bently Nevada 3500/15-05-05-CN is a dual-supply AC power module assembly engineered for the 3500 machinery protection chassis. This specific part number configuration pairs two High-Voltage AC Power Supplies (175 VAC to 264 VAC input range) with the specialized -CN agency approval certification suite. It seats directly into Positions 1 and 2 on the 3500/05 chassis backplane to supply continuous, regulated internal DC power across all system monitoring channels.
Configured for full N+1 active power redundancy, the 3500/15 architecture guarantees uninterrupted vibration and thrust protection. If one incoming AC line drops or an internal component degrades, the twin supply instantly handles the full current load without a single microsecond reset on the rack backplane. The -CN variant fulfills specific regional compliance and safety standards, making it the ideal direct drop-in replacement for international sites and cross-border equipment skids.
Key Technical Specifications
| Parameter | Value |
| Full Part Number | 3500/15-05-05-CN |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Option Breakdown | -05 (Top: High Voltage AC) / -05 (Bottom: High Voltage AC) / -CN (Agency Approval: China / Specialized Regional Certified) |
| Input Voltage Range | 175 to 264 VAC RMS (High-Voltage AC Line) |
| Input Frequency | 47 to 63 Hz |
| Maximum Peak Inrush Current | 40 A per supply at 220 VAC input |
| Output Capabilities | Supplies regulated internal DC power voltages to 3500 backplane rails |
| Power Consumption | Up to 300 Watts output capacity depending on rack load |
| Redundancy Type | Dual-redundant, load-sharing configuration across Positions 1 & 2 |
| Operating Temperature | -30°C to +65°C (-22°F to +149°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Dimensions (H x W x D) | 120.7 mm x 50.8 mm x 251.5 mm (4.75 in x 2.0 in x 9.9 in) per module |
Application Scenarios & The “Trench” Experience
When an OEM turbomachinery skid arrives from overseas, tracking down exact agency-coded replacement modules can stop a commissioning team dead in their tracks. During a recent turbine overhaul on an import skid, the local inspection team flagged a damaged power supply and insisted the replacement carry the exact -CN suffix specified on the original electrical package drawing. We pulled a certified 3500/15-05-05-CN module set from stock, bench-verified its output, and delivered it to the site within 24 hours—passing sign-off and getting the machine online without regulatory delays.
- Global & Export Machinery Skids – Imported Gas Turbines – Meets exact regional agency approvals (
-CN) mandated for domestic and cross-border equipment compliance. - Petrochemical Refineries – Ethylene Cracker Compressors – Provides fully redundant N+1 power to keep critical vibration protection active during plant grid fluctuations.
- Power Generation Plants – Steam Turbine-Generator Sets – Conditions utility AC feeds to protect sensitive backplane monitoring electronics against high-voltage line spikes.
- LNG Transfer Stations – Cryogenic Boil-Off Gas Pumps – Delivers clean, isolated backplane power for continuous protection in harsh process environments.
3500/15-05-05-CN
3500/15-05-05-CN
Transparency SOP: Quality Assurance & Testing
We do not just ship boxes; we test them on actual Bently Nevada test racks. Every 3500/15-05-05-CN module set goes through strict bench validation before dispatch:
- Inbound & Agency Seal Inspection: Verify OEM label nomenclature, check
-CNregional compliance markings, and audit internal traces and capacitors for heat stress or storage degradation. - Dielectric Isolation & Hi-Pot Check: Test high-voltage insulation between AC line inputs, chassis frame ground, and internal DC power rails to ensure 100% electrical safety.
- Full-Load Thermal Burn-In: Mount the supply in a live test chassis and draw full rated current for 12 continuous hours, monitoring thermal output and voltage regulation with precision logging meters.
- Active Redundancy Failover Test: Operate both supplies in tandem under full load; cut the primary AC line cord repeatedly to verify instantaneous load takeover without dropping the 3500 TDI heartbeat.
- ESD Packaging & Heavy-Duty Crating: Seal each unit in anti-static shielding bags with fresh desiccant and ship in custom foam-lined boxes engineered to absorb drop impacts.
The Veteran’s Tech Trap Guide (Crucial Value-Add)
- ⚠️ Voltage Code Verification: The
-05-05suffix designates High-Voltage AC (175–264 VAC). If your panel delivers 110/120 VAC, this module will not start up. Ensure your power source matches the high-voltage spec before energizing. - ❗ Agency Suffix Matching (
-00vs-CN): Electrically and functionally, a-05-05-00and a-05-05-CNperform identically inside the 3500 rack. However, if your plant audit documentation or local electrical code explicitly requires-CNcompliance, substituting a-00module may trigger regulatory non-compliance during site audits. - ⚠️ Mating with the Rear Power Input Module (PIM): Ensure the rear PIM connectors on the back of the rack match the front supply card. Slide the module in straight along the guide rails to avoid bending internal backplane connector pins.
- ❗ Hot-Swapping Precaution: You can safely hot-swap one faulty supply card while the other is healthy. However, always verify that the active supply shows a green OK LED before pulling the suspect card. If both supplies are unstable, pulling one live can drop the entire protection rack.
Frequently Asked Questions (FAQ for Conversion)
Q: What is the difference between 3500/15-05-05-00 and 3500/15-05-05-CN?
A: Both modules share identical electrical specs and physical dimensions (High-Voltage AC, 175–264 VAC). The -CN suffix indicates specific agency approvals and certification markings required for certain regional jurisdictions and export project specifications.
Q: Can I use a 3500/15-05-05-CN module to replace a failed 3500/15-05-05-00 module?
A: Yes. Electrically and mechanically, they are 100% interchangeable within any 3500 rack chassis. Unless your facility enforces strict internal documentation matching, the -CN unit drops right in and operates seamlessly.
Q: Can this power supply operate on 120V AC input?
A: No. The -05 option requires a high-voltage AC input between 175 VAC and 264 VAC. If your power feed is 110/120 VAC, you need the low-voltage AC supply option (-03 or -04).
Q: Are these power supplies brand new or reconditioned?
A: We stock both New Surplus (unused OEM factory sealed stock) and fully bench-tested re-certified units. Every unit passes full-load burn-in testing prior to dispatch.
Q: What warranty comes with the 3500/15-05-05-CN module set?
A: We back every module set with a full 12-month replacement warranty starting from the day it arrives at your facility.
Q: Why source Bently Nevada components through surplus inventory?
A: Factory lead times for Bently Nevada hardware can often span several months. We maintain physical stock in our warehouse ready for immediate dispatch, helping you bypass critical lead times and prevent costly plant downtime.
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