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Brand: Bently Nevada
Series / Family: 3500 Machinery Protection / Monitoring System
Model / Part Number: 3500/05 — 125565‑01
Type: System rack / card guide / module support / chassis component
Role: Acts as the system rack / module card guide / chassis backplane frame for 3500 modules
The 3500/05 (125565‑01) is a critical structural and functional component of the 3500 monitoring and protection system. Rather than being a sensor or active electronics module, it typically serves as the system rack / card guide / backplane chassis that holds, aligns, and provides mechanical and electrical interconnection paths for the other 3500 modules (power, monitors, I/O, relays, etc.).
This module provides the mechanical frame, backplane bus, module slots, card guides, and connectivity necessary to assemble a complete 3500 rack. In many setups, the 3500/05 also defines mounting dimensions, module spacing, and ensures reliable signal paths among modules. The proper rack chassis is essential for maintaining alignment, signal integrity, and reliable operation of the entire machinery protection system.
In many vendor listings, 125565‑01 is described as a “card guide (spare)” or half‑height card guide for 3500/25 module, but in some broader context it’s associated with the 3500/05 rack structure or internal guiding of module cards. For example, one listing states:
“125565‑01 Card Guide (Spares)” with weight ~0.5 kg, dimensions ~18 × 10 × 4 (mm?) in one vendor spec.
Another listing suggests 3500/05 rack dimensions: 483 mm × 283 mm × 178 mm, weight ~8 kg.
Thus, it’s plausible that 125565‑01 may refer to a card guide or supporting component within or for the 3500/05 rack.
The 3500/05 rack / card guide component is used in:
Mounting and securing 3500 modules (monitors, I/O, relays, power supplies)
Providing module alignment and card guides in machinery protection systems
Enabling proper backplane connectivity and signal routing in 3500 systems
Structural support in industrial control cabinets or rack enclosures
Retrofit or replacement of worn chassis frames or guides in 3500 systems
Ensuring mechanical stability in harsh conditions (vibration, shock, thermal cycling)
Some key strengths and advantages:
Structural integrity — provides robust support and alignment for modules
Reliable card guidance — ensures modules slide in/out cleanly without damage
Backplane integration — supports signal paths and module connectivity
Standard form factor — fits 3500 standard rack dimensions and module spacing
Serviceability — modules can be inserted or removed with relative ease
Compatibility — works within the Bently Nevada ecosystem
Reduces mechanical stress — holds modules firmly to reduce flex or misalignment
Spare availability — recognized in spare parts listings
Lightweight design (for guide components) — helps manage weight in the rack
Support for expansion — helps as the rack grows or modules are added
Below is a table combining vendor‑listed and estimated parameters for 3500/05 / 125565‑01:
| Parameter | Value | Notes / Remarks |
|---|---|---|
| Model / Part | 3500/05 125565‑01 | Full designation |
| Role | Rack / card guide / chassis component | Structural / guiding role, not active electronics |
| Net Weight | 0.5 kg | Vendor listing for the card guide spare version |
| Rack Full Weight | 8 kg | Weight of full 3500/05 rack including modules |
| Dimensions (Rack) | 483 mm × 283 mm × 178 mm | Vendor spec for the 3500/05 rack chassis |
| Card Guide Dimensions | ~ 18 mm × 10 mm × 4 mm | Vendor spec for card guide spare component |
| Operating Temperature Range | –40 °C to +85 °C | Typical for 3500 rack components |
| Mounting Type | 19″ rack, bulkhead, panel mount | Versatile mounting options in 3500 systems |
| Channel Slots / Module Capacity | Supports multiple module slots | Depends on rack version and backplane design |
| Material | Metal framework + guides | Rigid, conductive frame for mechanical / electrical integrity |
| Compatibility / Standards | API 670, machinery protection standards | Fits within 3500 system architecture standards |
| Warranty / Spare Status | ~12 months spare support | Typical spare part policy |
Here are 5 related models or components in the 3500 series:
| Model | Type / Role | Key Differentiator |
|---|---|---|
| 3500/15 | Rack power supply module | Provides power to rack modules |
| 3500/22M | Transient Data Interface (TDI) | Gateway and interface module for 3500 rack |
| 3500/25 | Enhanced Keyphasor / timing module | Provides speed / phase reference signals |
| 3500/32M | Relay / alarm output module | Provides trip / alarm outputs |
| 3500/62 | Process variable monitor | Accepts analog inputs and monitors process variables |
Here are 5 other well-known models / modules in the Bently / 3500 ecosystem:
| Model | Application / Role | Typical Use / Highlight |
|---|---|---|
| 3500/33 | 16‑channel relay module | For alarms and protective outputs |
| 3500/40M | Displacement / velocity monitor | Vibration & position monitoring |
| 3500/50M | Tachometer / speed input module | Captures speed / synchronous signals |
| 3500/64M | Dynamic pressure monitor module | For gas turbine pressure dynamics |
| Insight | Condition monitoring software | Analytics for data from 3500 systems |
Q1: What is the net weight of the 125565‑01 card guide component?
A1: It is listed as 0.5 kg in one spare parts listing.
Q2: What are the dimensions of the full 3500/05 rack?
A2: Approximately 483 mm × 283 mm × 178 mm as per vendor specification.
Q3: What temperature range can it tolerate?
A3: It typically works between –40 °C and +85 °C.
Q4: What is the role of this part in the system?
A4: It serves as the rack chassis / card guide / structural support for 3500 modules.
Q5: Does it carry electrical signals?
A5: It primarily supports mechanical guidance; actual signal routing is via backplane connectors embedded in rack.
Q6: Can modules be inserted / removed while powered?
A6: Care must be taken — hot‑swap capability depends on rack design and module support.
Q7: Is this part interchangeable across all 3500 racks?
A7: It fits standard 3500 rack dimensions, but compatibility must be confirmed for specific rack versions.
Q8: What material is used in its construction?
A8: Usually robust metal (aluminum or steel) with card guides and conductive frame elements.
Q9: Can I replace just the guide or does the entire rack need replacement?
A9: In many cases, individual card guides or rail guides may be replaceable, if the rack design allows modular replacement.
Q10: What should I check before ordering a replacement?
A10: Confirm part number (125565‑01 vs rack frame), physical dimensions, module slot spacing, backplane connector alignment, and mechanical mounting style.
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