Bently Nevada 3500/33 16-Channel Relay Module

Part Number / Catalog: 3500/33 (Spare P/N 149992-01)

Function: 16-Channel Relay Output Module for Bently Nevada 3500 Series Machinery Protection System

Relay Type: SPDT electromechanical relays, epoxy-sealed with 250 Vrms arc suppressor

Relay Contact Life: 10,000 cycles (typical)

Operation Mode: Selectable in groups of four channels for Normally De-energized (ND) or Normally Energized (NE) via DIP switches

Power Consumption: 5.8 W (typical)

Rack Requirements: Requires one full-height front and one full-height rear slot; compatible with 3500/15 PIM power supplies

LED Indicators: OK, TX/RX, and 16 CH ALARM LEDs

Operating Temperature: –30 °C to +65 °C

Environmental Sealing: Epoxy-sealed relays and conformal-coated PCB

Approvals / Compliance: API 670 compliant when rack configured; optional hazardous-area variants available

Sixteen Independently Programmable SPDT Relay Outputs: Configurable alarm drive logic using AND/OR voting from Protection Plug-in Logic.

Selectable Normally Energized/De-energized Modes: Four groups of four channels switchable via DIP switches to ND or NE.

Epoxy-Sealed, Rugged Construction: Designed for harsh environments with moisture and contaminant resistance.

Onboard Arc Suppression & High-Life Contacts: Internal 250 Vrms suppressors and robust contact life.

Front-Panel LED Diagnostics: OK, TX/RX, and CH ALARM LEDs for immediate status and troubleshooting.

Full-Height, Hot-Swap Capability: Supports field replacement under power with redundant power modules.

API 670 Compliance: Meets machinery protection standards in a properly configured rack.

Hazardous-Area Deployments (with Optional Relay Variants): Suitable for explosive atmospheres with intrinsically safe relay options.

DCS/PLC Integration for Central Monitoring: Outputs integrate with PLC/DCS for centralized alarm tracking and interlock logic.

Batch & Sequential Process Control: Relay outputs trigger stage transitions in batch processes based on machinery condition.