Product Overview

The 3300/12-02-20-00 is a high-performance alternating current (AC) power module specifically engineered for the Bently Nevada 3300 series machinery protection system. As the primary energy source for the instrumentation rack, this module converts incoming line voltage into the regulated DC power required to drive proximity probes, velocity sensors, and individual monitoring cards. This specific configuration is designed for high-availability industrial environments, ensuring that critical machinery data remains uninterrupted. Its robust internal circuitry is shielded to prevent electromagnetic interference from compromising the sensitive vibration and position signals processed within the same chassis.

Hardware Parameters and Dimensional Data

The physical and electrical architecture of the 3300/12-02-20-00 is optimized for long-term stability in demanding plant conditions.

• Manufacturer Specification: Bently Nevada

• Module Part Number: 3300/12-02-20-00

• Power Input Type: High-voltage AC (typically selectable for 115/230 VAC)

• Output Regulation: Constant DC voltage distribution via rack backplane

• Protection Rating: Integrated over-voltage and short-circuit protection

• Unit Weight: 1.4 kg

• Module Size: 5.1 cm x 20.3 cm x 33.0 cm

• Slot Requirement: Occupies the dedicated power supply slot in a 3300/05 rack

• Operating Temperature Range: -30°C to +65°C (-22°F to +149°F)

• Status Indicators: Front-panel LEDs for "Power OK" and system health monitoring

• Country of Origin: USA

Industrial Utility and Deployment Environments

Power Plant Infrastructure

This module is a staple in power generation facilities where it energizes the monitoring racks for large steam and gas turbines. It provides the stable current needed for continuous shaft vibration analysis and axial position tracking.

Petrochemical and Refining Operations

In hazardous and highly regulated environments, the 3300/12-02-20-00 supports the surveillance of critical centrifugal compressors and heavy-duty pumps. Its reliability is essential for preventing catastrophic machine failure through early fault detection.

Manufacturing and Heavy Industry

The unit is frequently deployed in steel mills and paper plants to power machinery protection systems for large motors and fans, ensuring that production remains consistent and equipment is protected from unforeseen mechanical excursions.

Legacy System Sustainment

As an authentic replacement part, this module is vital for maintenance engineers looking to extend the lifecycle of established 3300 series racks without the need for a total system overhaul or migration to newer platforms.

FAQ

Q: Can the 3300/12-02-20-00 be used in a 3500 series rack?

A: No, this power supply is exclusively designed for the 3300 series architecture. The physical form factor and backplane connectors are not compatible with the 3500 series machinery protection systems.

Q: Does this module come with the 12-month warranty as standard?

A: Yes, all brand-new 3300/12-02-20-00 units provided are covered by a 12-month manufacturer-standard warranty, ensuring protection against defects in materials and workmanship.

Q: What is the primary function of the front-panel LED?

A: The LED indicates the status of the internal DC output. A solid light confirms that the module is successfully converting AC input and providing regulated power to the rack backplane.

Q: Is it necessary to power down the entire rack when replacing this module?

A: Yes, for safety and to prevent electrical surges across the backplane, it is mandatory to disconnect the AC source before removing or installing the 3300/12 power module.

Q: How is the input voltage selected on this specific model?

A: The -02 option typically indicates a specific factory-set or jumper-selectable voltage range. You should verify your local line voltage matches the configuration on the module nameplate before energizing.