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- Bently Nevada
- 3500/15 129478-01
- High Voltage DC Power Input Module
- USA
- 152 mm x 25 mm x 203 mm
- 0.6kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview: 3500/15 129478‑01
Specifications
| Parameter | Details |
|---|---|
| Model | 3500/15 129478‑01 |
| Module Type | Dual Proximitor® Power Supply Module |
| Input Voltage | +24 V DC (provided by 3500 rack) |
| Output Voltage | –18 V DC, dual isolated outputs (±0.5 % stability) |
| Load Capacity | Supports up to 12 proximity sensors |
| Fault Detection | Open/short circuit detection with LED status |
| LEDs | Power OK and individual channel fault indicators |
| Hot-Swappable | Yes, supports maintenance without shutdown |
| Environmental Rating | Designed for industrial conditions (e.g., gas turbines) |
| Certifications | Designed to meet explosion-proof and quality standards |
| Operating Temperature | –30 °C to +65 °C |
| Weight (kg) | Approx. 0.6 kg (estimation based on similar modules) |
| Dimensions | Half-height slot module; exact size similar to other 3500/15 components |
Product Description
The 3500/15 129478‑01 is a dual-channel, isolated power supply module designed specifically to drive proximity sensor (Proximitor®) systems within a modular machinery protection rack. It accepts +24 V DC from the rack backplane and generates two independent –18 V DC outputs, each with fine regulation and stability. The dual isolation ensures that faults in one channel remain localized, enhancing overall system robustness.
Status LEDs indicate both overall power health and diagnostic alerts on each channel. The module fits a half-height slot in the rack, enabling hot-swapping in redundant setups, and is built to meet industrial reliability standards.
Applications
This module is perfectly suited for:
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Gas turbines — shaft position and clearance monitoring
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Steam turbines — rotor movement sensing and clearance detection
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Compressor trains — monitoring rotating parts for stability
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Hydropower generators — air gap and shaft vibration sensing
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Oil & gas machinery lines — proximity-based protection sensing
Advantages
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Dual isolated outputs prevent single-point faults
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Built-in diagnostics with LEDs for quick maintenance
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Hot-swappable design enables maintenance without shutdown
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Compact form saves rack space while delivering robust function
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Superior reliability for high-demand environments
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Redundant design support aligns with best-practice safety systems
Series & Brand Context
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Series: 3500 Modular Machinery Protection System – a scalable rack-based solution for machinery health monitoring
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Module Role: Proximitor® power supply — dedicated to proximity sensor power
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Brand Context: From a leading provider of industrial condition monitoring solutions (brand name intentionally omitted)
Related Models (Same Series)
| Model | Function |
|---|---|
| 3500/15 125840‑01 | High voltage AC power input module |
| 3500/15 125840‑02 | Low voltage AC power input module |
| 3500/15 127610‑01 | High voltage DC power input module |
| 3500/15 133292‑01 | Low voltage DC input module |
| 3500/15 Redundant Kit | Backup power module for redundancy |
Popular Modules from Same Brand
| Model | Key Function |
|---|---|
| 3500/92 | Communication gateway (e.g., Modbus/Ethernet) |
| 3500/60 | Shaft clearance / proximitor monitoring |
| 3500/94 | Rack-mounted display interface |
| 3500/30M | Dual-channel vibration monitor |
| 3500/22 | Transient data interface (TDI) module |
FAQ (10 Common Questions)
Q1: What is the main purpose of the 129478‑01 module?
A1: It powers proximity sensors, delivering two isolated –18 V DC outputs from the rack’s +24 V supply.
Q2: Can it support multiple proximity sensors?
A2: Yes—each output supports up to 6 sensors, for a total of 12.
Q3: What do the LEDs indicate?
A3: A “Power OK” LED shows overall health; channel LEDs mark open/short faults.
Q4: Is redundancy supported?
A4: Yes—you can install a backup identical module to enable hot swapping without downtime.
Q5: Can I replace it while the rack is active?
A5: Yes—as long as a redundant module is active, it can be safely hot-swapped.
Q6: Is it suitable for harsh industrial environments?
A6: Yes—designed for turbine halls, oil & gas plants, and other challenging settings.
Q7: How robust is the output regulation?
A7: Very precise—regulated within ±0.5% for accurate sensor power delivery.
Q8: What physical form does it take?
A8: Half-height rack module; fits into designated slot on the left side.
Q9: What is the operating temperature range?
A9: From –30 °C up to +65 °C under continuous operation.
Q10: Does it comply with safety standards?
A10: Yes—designed to industrial quality and explosion-proof standards.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.