Product Introduction: 3500/44M 176449-03
The 3500/44M 176449-03 is a Triple Modular Redundant (TMR) Power Supply for the Bently Nevada 3500 Machinery Protection System. This module represents the highest level of power supply reliability and fault tolerance available for the platform. It incorporates three independent, isolated power conversion circuits that work in parallel. The module uses a voting mechanism to ensure that a single failure within the power supply itself will not disrupt power to the rack, thereby preventing a spurious shutdown of the machinery being monitored. It is designed for the most critical applications where power supply availability is paramount to overall system integrity.
Technical Parameters
The key technical parameters for the 3500/44M 176449-03 Power Supply Module are summarized in the table below.
| Parameter Category | Specification |
|---|---|
| Model & Part Number | 3500/44M 176449-03 |
| Module Type | Triple Modular Redundant (TMR) Power Supply |
| Input Voltage | 85 ~ 264 VAC, 47~63 Hz; or 90 ~ 150 VDC |
| Output Voltages | +15 VDC, -15 VDC, and +5 VDC (to the rack backplane) |
| Output Power | Typically 38 Watts (dependent on rack configuration) |
| Redundancy Architecture | Triple redundant, fault-tolerant design. |
| Hot-Swappable | Yes, designed for hot swapping in a powered rack. |
| Module Dimensions (H x W x D) | Approx. 190 mm x 60 mm x 140 mm (7.5 in x 2.4 in x 5.5 in) [Standard 3500 rack slot] |
| Module Weight | Approx. 1.1 kg (2.4 lbs) |
| Mounting | Slides into a single slot in a 3500 series rack. |
| Operating Temperature | 0°C to +65°C (+32°F to +149°F) |
| Safety & Standards | Typically complies with UL, cUL, CE, and meets requirements for IEC 61508 SIL 2 / SIL 3 applications. |
| Key Features | • Prevents shutdowns from a single power supply failure • Fault tolerance against internal component failures • Status and fault indicators |
Note: The dimensions and weight are standard for a module in a 3500 series frame. The power output is shared across all modules in the rack. Always refer to the official Bently Nevada documentation for system configuration guidelines.
Application Scenarios
The 3500/44M TMR Power Supply is deployed in the most critical environments where any loss of monitoring system power is unacceptable. Its primary application is to provide ultra-reliable power to the protection system to avoid costly false trips.
Safety Instrumented Systems (SIS): Powering machinery protection systems that are part of a SIL 2 or SIL 3 certified safety loop in process industries.
Critical Turbo-machinery: Providing fault-tolerant power for monitoring systems on gas turbines, steam turbines, and compressors in power generation and oil & gas production, where an unplanned shutdown costs millions.
High-Availability Platforms: Any installation where maximizing Mean Time Between False Trips (MTBFT) is a critical operational and financial objective.
Offshore Platforms & Remote Locations: Applications where equipment redundancy is crucial due to limited access for immediate repairs.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
Your trust is the driving force for our continuous progress, submit your requirements immediately to get exclusive quotes
