Bently Nevada 3500/53 4-Channel Relay Module in stock
Bently Nevada 3500/53 is a 4-channel relay output module for the 3500 machinery monitoring system. It provides dry contact relay outputs for alarm and trip signals, acting as the hardware interface between the monitoring rack and external trip logic, PLC or emergency shutdown systems.

This module contains four independent relays, each configurable for warning or danger trip. It fits into the 3500 series rack and communicates with the rack interface module. It is widely used for turbine, compressor and rotating machinery protection in power, oil and gas industries.
Main Specifications
| No. | Item | Parameter |
|---|---|---|
| 1 | Brand | Bently Nevada |
| 2 | Model | 3500/53 |
| 3 | Module Type | 4-Channel Relay Output Module |
| 4 | Compatible Rack | Bently Nevada 3500 Machinery Monitoring Rack |
| 5 | Relay Quantity | 4 independent dry contact relays |
| 6 | Contact Rating | 5A @ 250VAC / 5A @ 30VDC |
| 7 | Operating Temperature | 0℃ ~ +60℃ |
Core Functions
| No. | Function Description |
|---|---|
| 1 | Output hardware relay contact signals for machinery alarm and trip protection |
| 2 | Each relay independently configurable for warning or danger trip status |
| 3 | Real-time communication with 3500 rack to receive vibration and speed alarm events |
| 4 | Dry contact output to connect ESD, PLC and external emergency shutdown circuits |
| 5 | On-board self-diagnosis to detect relay and communication circuit faults |
Application Scenarios
| No. | Application |
|---|---|
| 1 | Steam turbine and gas turbine machinery protection system |
| 2 | Oil & gas compressor, pump high-speed rotating equipment monitoring |
| 3 | Power plant auxiliary rotating machinery vibration trip protection |
| 4 | Petrochemical plant ESD emergency shutdown interlock system |
| 5 | 3500 rack spare parts replacement and machinery monitoring system upgrade |
FAQ
| No. | Question & Answer |
|---|---|
| 1 | Q:What is Bently Nevada 3500/53? A:It is a 4-channel relay module for 3500 series machinery monitoring system, used for alarm and trip contact output. |
| 2 | Q:How many relays does 3500/53 have? A:It has 4 independent dry contact relays. |
| 3 | Q:What is the difference between 3500/53 and 3500/54? A:3500/53 is 4 relays; 3500/54 is 16 relay channels for larger interlock demands. |