Product Introduction: 3500/42M 140734-02 + 128229-01
The 3500/42M 140734-02 and 128229-01 together form a TMR (Triple Modular Redundant) Power Supply Module and a dedicated Power Supply Chassis or Rack Mounting Kit for the Bently Nevada 3500 Machinery Protection System. The 3500/42M is a highly reliable, fault-tolerant power supply that incorporates three independent, isolated power conversion circuits operating in parallel. This TMR architecture ensures that a single failure within the power supply will not disrupt power to the rack, thereby preventing a spurious shutdown of the monitored machinery. The 128229-01 component is the specialized chassis or mounting kit that houses and provides the necessary backplane connections for this redundant power supply module within the 3500 rack framework.
Technical Parameters
The table below outlines the key parameters for both the module and the chassis/mounting kit.
| Parameter Category | Specification |
|---|---|
| Part Number Set | 3500/42M 140734-02 (Module) + 128229-01 (Chassis/Mounting Kit) |
| Module Function | TMR (Triple Modular Redundant) Power Supply |
| Chassis Function | Mounting Chassis / Backplane for 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) |
| Chassis/Mounting Kit Dimensions | Varies; designed to occupy a specific space in the 3500 rack frame. |
| Chassis/Mounting Kit Weight | Approx. 1.5 - 2.0 kg (3.3 - 4.4 lbs) |
| Mounting | Module slides into the dedicated 128229-01 chassis, which is mounted in the 3500 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 • Dedicated chassis ensures proper integration and connectivity. |
*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. The 128229-01 is a specific interface component for this TMR power supply model.*
Application Scenarios
The 3500/42M TMR Power Supply system 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 like chemical and petrochemical plants.
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 is extremely costly.
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 and the high cost of downtime.
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Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
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- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
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7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
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