Product Details:

Bently Nevada 81545-01 is a dual epoxy relay module and signal input relay board built for Bently Nevada 3300 series machinery protection TSI system. This I/O module works as the rear rack interface between field sensors and the main monitoring rack, receiving dry contact and voltage pulse signals from on-site equipment while delivering reliable relay switch outputs for alarm and interlock control. Equipped with dual epoxy encapsulated relays, the module protects internal relay components from moisture, dust and corrosive gas in heavy industrial environments, preventing contact oxidation and maintaining stable switching performance for long-term continuous operation. Each relay adopts SPDT form C contact design, supporting flexible wiring of normally open and normally closed circuits, with solid contact load capacity to trigger on-site alarm lights, buzzers and safety shutdown circuits when vibration, displacement, temperature or overspeed faults are detected on rotating machinery. The 81545-01 signal input relay board has built-in cross-talk suppression function between adjacent channels, effectively reducing signal interference and avoiding false triggering caused by transient electrical noise. It adopts card-edge backplane connection and rear rack mounting design, supporting simple installation, wiring and routine maintenance, and can be seamlessly matched with multiple monitor cards in the 3300 rack system. The module operates stably within the temperature range of -30°C to +65°C, with excellent insulation and dielectric strength to isolate field circuit noise from the monitoring mainboard. Widely used in power generation, petrochemical, metallurgy and chemical industries, this dual epoxy relay module serves as a key safety component for turbines, centrifugal compressors and generators. It can quickly respond to abnormal equipment signals, realize fault alarm and safety interlock functions, assist maintenance personnel to find mechanical risks in advance and avoid catastrophic equipment damage and unplanned production downtime.

Core Attributes:

Brand: Bently Nevada

Model: 81545-01

Product Type: Dual Epoxy Relay Module / Signal Input Relay Board

Relay Type: Epoxy encapsulated SPDT form C relay

Input Signal: Dry contact, voltage pulse signal

System Compatibility: Bently Nevada 3300 series TSI machinery monitoring system

Mounting: Rear rack mount, card-edge backplane connection

Operating Temperature: -30°C ~ +65°C

Feature: Epoxy sealing, channel cross-talk suppression, anti-electromagnetic interference, stable alarm output