Bently Nevada 133300-01 3500 Series Low Voltage DC Power Input Module

Description

Designed to interface directly with the 3500/15 power supply system, the Bently Nevada 133300-01 provides regulated low-voltage DC input capabilities to the 3500 machinery protection rack. This rear-mount module accepts 20 to 30 VDC and conditions the incoming primary power before routing it to the internal backplane. Engineered for high-reliability environments, it is crucial for maintaining continuous machinery monitoring and protecting critical rotating assets from unexpected power interruptions.

Features

• Seamless integration with the 3500/15 Low Voltage DC Power Supply.
• Supports fully redundant power configurations when configured with a secondary rear module.
• Heavy-duty terminal block connections designed to withstand industrial vibration.
• Built-in overcurrent protection and electromagnetic interference (EMI) filtering.
• Passive cooling design optimized for continuous rack operation.

Applications

• Steam and gas turbine vibration monitoring systems.
• Hydroelectric generator protection setups.
• Petrochemical plant compressor and pump safety racks.
• Heavy industrial power generation and distribution facilities.

Technical Specifications

Connections and Interfaces

Empirical Engineering Insights

Alternative Models & Compatibility

The 133300-01 is specifically paired with the low-voltage DC variant of the 3500/15 power supply. It is physically and electrically incompatible with the high-voltage AC/DC modules (such as 129767-01 or 120739-01). Always verify the voltage rating of your front-facing 3500/15 module before hot-swapping or replacing rear input elements.

Application Pitfalls & Engineering Notes

In dual-redundant setups, ensure both low-voltage DC sources originate from independent breakers or power feeds. If both inputs are tied to the same feeder circuit, the system redundancy is effectively bypassed. Avoid routing raw, unfiltered field DC directly to these terminals; use external line conditioning if long cable runs are subject to inductive switching noise.

Commissioning & Wiring Tips

Use a minimum wire gauge of 14 AWG (2.1 mm2) to prevent excessive voltage drop over runs exceeding 10 meters. Ensure terminal block screws are torqued exactly to 0.56 Nm (5 in-lb) to maintain secure connections under continuous high-frequency machinery vibration.

Installation Guidelines