1. Product Overview & Introduction

• Brand: Bently Nevada

• Series / Platform: 3500 Machinery Protection System

• Module Type: 16‑Channel Relay Output Module

• Model / Part Number: 3500/33, P/N 162291‑01

• Core Function: This module provides 16 independent relay outputs, each configurable with logic (AND / OR / voting / latch). Its role is to translate alarm/status signals from the 3500 rack monitoring modules into physical relay actions (e.g. shutdown, alarm, interlock).

• Intended Use: In a 3500 rack, the 33 module is placed to the right of the Transient Data Interface (TDI). It supports higher output density compared to 4‑channel relay modules and is used where many output actions or complex logic combinations are required.

This 16‑channel relay module is designed for industrial machinery protection applications, allowing more flexible control and interlocking among multiple channels and alarms.

2. Technical Specifications

Below is a table summarizing known / typical specifications for 3500/33 162291‑01 (or closely analogous 3500/33 modules). Some values are drawn from manufacturer datasheets of 3500/33 modules with similar part numbers, interpreted to apply to 162291‑01 as representative.

Note: The values above represent typical 3500/33 characteristics that align with published modules such as 149986‑01, 149992‑01, etc. For exact values of 162291‑01 variant, consult the official data sheet.

3. Applications & Use Cases

1. High-Density Relay Output
   Where multiple shutdowns, alarm triggers, or interlocks are needed, the 3500/33 provides 16 outputs in one module instead of requiring multiple smaller modules.

2. Complex Logic & Voting Schemes
   For protection systems requiring combinations of signals (e.g. “if Channel A AND Channel B” or “at least 2 of 3 channels disagree”), the 33 module’s logic functionality supports these advanced schemes.

3. Redundant & Backup Systems
   In critical operations (power plants, petrochemical, compressors), multiple relay modules can be installed for redundancy or cross-checking.

4. Interfacing to External Control Systems
   Outputs from the relay module may drive control valves, breakers, alarms, actuators, or signals to SCADA / PLC systems.

5. Machine Protection Systems
   Used in turbines, pumps, compressors, motors, etc., as part of a broader vibration & condition monitoring architecture, to enable responsive safety actions.

6. Upgrading Older Systems
   In retrofits, a 3500/33 module can replace or supplement older relay modules to increase output capacity or flexibility.

4. Key Advantages & Strengths

• High Output Capacity: 16 relay outputs in one module reduces the number of modules needed and simplifies rack layout.

• Independent Channel Configuration: Each relay channel is programmable, allowing customized logic and thresholds per output.

• Flexible Logic Options: Supports AND, OR, voting logic, latch modes, and combinations of alarm inputs for intelligent decision-making.

• Compact & Modular: Fits standard 3500 rack slots; detachable I/O modules reduce wiring complexity.

• Industrial Robustness: Epoxy sealing, arc suppressors, and durable relay contacts make it suitable for harsh environments.

• Reliable Performance: With proven relay technology, the module can be trusted in critical protection applications.

• Scalability: For systems needing even more outputs, multiple 33 modules can be added to the same rack.

• Interoperability: Fully compatible with other 3500 modules (sensors, monitors, TDI, speed modules, etc.).

5. Related Modules in Same Series / Commonly Paired

Here are five 3500 system modules that are often used along with or as alternatives/companions to the 33 relay module:

These modules fill roles from sensing to speed measurement to logic output within a 3500 rack system. The 33 module is among the output/control side of the chain.

6. Popular Models from Same Brand (Bently Nevada / 3500)

Below are five other widely used or well-known modules in the Bently Nevada 3500 ecosystem: