Bently Nevada 3500/33 16-Channel Relay Module | 149986-01 SPDT
Bently Nevada 3500/33 16-Channel Relay Module | 149986-01 SPDT
Manufacturer: Bently Nevada
Product No.: 149986-01
Condition:1000 in stock
Product Type: Relay Output Modules
Payment: T/T, Western Union
Weight: 700g
Shipping port: Xiamen
Warranty: 12 months
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⚡ Bently Nevada 3500/33 16-Channel Relay Module (149986-01)
The Bently Nevada 3500/33 is a critical relay output module for the 3500 machinery protection system, providing 16 independent SPDT (Single-Pole, Double-Throw) relay channels for alarm annunciation, emergency shutdown, and equipment protection. With epoxy-sealed relays rated for 10,000 cycles and configurable normally energized/de-energized operation, this module delivers fail-safe alarm outputs for turbomachinery monitoring in power generation, oil & gas, and heavy industry applications.
🔌 Module Specifications
RELAY OUTPUT CONFIGURATION
| Part Number: | 149986-01 |
| Model: | 3500/33 16-Channel Relay Module |
| Relay Channels: | 16× SPDT relays |
| Relay Type: | Single-Pole, Double-Throw (SPDT) |
| Sealing: | Epoxy-sealed (environmental protection) |
| Arc Suppressor: | 250 Vrms (installed standard) |
| Contact Life: | 10,000 cycles minimum |
| Operation Mode: | 4 groups × 4 channels (ND/NE selectable) |
| Power Consumption: | 5.8W typical |
| Rack Space: | 1 full-height front + 1 rear slot |
| Dimensions: | 241×24.4×242mm (main), 241×24.4×99.1mm (I/O) |
| Weight: | 0.7kg (main) + 0.4kg (I/O module) |
🏭 Machinery Protection Applications
Turbine Emergency Shutdown: Provides fail-safe relay outputs for steam turbine, gas turbine, and hydro turbine trip systems where vibration, thrust position, or differential expansion alarms trigger emergency shutdowns preventing catastrophic blade failures, bearing seizures, and rotor rubs costing $5M-50M in equipment damage.
Compressor Anti-Surge Protection: Activates surge control valves and recycle systems in centrifugal compressors (pipeline, LNG, air separation) when vibration or performance monitors detect surge conditions, preventing impeller damage, seal failures, and process upsets that cause 30-90 day unplanned outages.
Generator Excitation Trip: Interfaces with generator protection relays to de-energize field excitation during rotor ground faults, loss of excitation, or excessive vibration in hydrogen-cooled generators (50-1000 MW), isolating faults before insulation damage escalates into catastrophic winding failures requiring 6-12 month rewinds.
Pump & Motor Monitoring: Drives alarm annunciators and motor contactors for critical pumps, fans, and motors in refineries, chemical plants, and power stations where bearing temperature, vibration, or flow alarms require immediate operator notification and automated equipment shutdown to prevent fires, spills, and safety incidents.
⚙️ Advanced Features
Configurable ND/NE Operation: Four groups of four channels independently selectable for Normally De-energized (fail-safe) or Normally Energized (fail-secure) operation accommodates diverse safety logic requirements—ND for emergency trips (energize to alarm) and NE for run permissives (de-energize to alarm).
Epoxy-Sealed Reliability: Environmental sealing protects relay contacts from moisture, dust, and corrosive atmospheres in harsh industrial environments, extending MTBF to 150,000+ hours versus unsealed relays failing in 20,000-40,000 hours in refineries, offshore platforms, and chemical plants.
Integrated Arc Suppression: Factory-installed 250 Vrms suppressors across relay contacts eliminate voltage spikes during inductive load switching (solenoid valves, motor contactors), preventing false trips in adjacent monitoring circuits and extending relay contact life by 40% in high-cycle applications.
Front Panel Diagnostics: OK LED confirms module operation, TX/RX LED indicates 3500 rack communication, and individual CH Alarm LEDs identify active relay channels, reducing troubleshooting time from 2 hours to 15 minutes during commissioning and fault diagnosis in multi-rack systems with 200+ I/O points.
📋 Ordering Options
- Output Module (A): 01-Standard, 02-Failsafe, 03-Low Current, 04-Low Current Failsafe
- Hazardous Area (B): 00-None, 01-cNRTLus (C1D2), 02-ATEX/IECEx/CSA (C1Z2)
📦 Module Package
- 1× Bently Nevada 3500/33 Main Module (149986-01)
- 1× 16-Channel Relay I/O Module
- Arc suppressors (250 Vrms, pre-installed)
- Installation manual and wiring diagram
- Configuration documentation
Genuine Bently Nevada product with global service support. Essential for vibration analysts, protection engineers, and instrumentation technicians managing 3500 series machinery protection systems in power generation, oil & gas, petrochemical, and heavy industry. Compatible with all 3500 rack configurations and monitoring modules (3500/40M, 3500/42M, 3500/50, 3500/60, 3500/62).
Product Description
⚡ Bently Nevada 3500/33 16-Channel Relay Module (149986-01)
The Bently Nevada 3500/33 is a critical relay output module for the 3500 machinery protection system, providing 16 independent SPDT (Single-Pole, Double-Throw) relay channels for alarm annunciation, emergency shutdown, and equipment protection. With epoxy-sealed relays rated for 10,000 cycles and configurable normally energized/de-energized operation, this module delivers fail-safe alarm outputs for turbomachinery monitoring in power generation, oil & gas, and heavy industry applications.
🔌 Module Specifications
RELAY OUTPUT CONFIGURATION
| Part Number: | 149986-01 |
| Model: | 3500/33 16-Channel Relay Module |
| Relay Channels: | 16× SPDT relays |
| Relay Type: | Single-Pole, Double-Throw (SPDT) |
| Sealing: | Epoxy-sealed (environmental protection) |
| Arc Suppressor: | 250 Vrms (installed standard) |
| Contact Life: | 10,000 cycles minimum |
| Operation Mode: | 4 groups × 4 channels (ND/NE selectable) |
| Power Consumption: | 5.8W typical |
| Rack Space: | 1 full-height front + 1 rear slot |
| Dimensions: | 241×24.4×242mm (main), 241×24.4×99.1mm (I/O) |
| Weight: | 0.7kg (main) + 0.4kg (I/O module) |
🏭 Machinery Protection Applications
Turbine Emergency Shutdown: Provides fail-safe relay outputs for steam turbine, gas turbine, and hydro turbine trip systems where vibration, thrust position, or differential expansion alarms trigger emergency shutdowns preventing catastrophic blade failures, bearing seizures, and rotor rubs costing $5M-50M in equipment damage.
Compressor Anti-Surge Protection: Activates surge control valves and recycle systems in centrifugal compressors (pipeline, LNG, air separation) when vibration or performance monitors detect surge conditions, preventing impeller damage, seal failures, and process upsets that cause 30-90 day unplanned outages.
Generator Excitation Trip: Interfaces with generator protection relays to de-energize field excitation during rotor ground faults, loss of excitation, or excessive vibration in hydrogen-cooled generators (50-1000 MW), isolating faults before insulation damage escalates into catastrophic winding failures requiring 6-12 month rewinds.
Pump & Motor Monitoring: Drives alarm annunciators and motor contactors for critical pumps, fans, and motors in refineries, chemical plants, and power stations where bearing temperature, vibration, or flow alarms require immediate operator notification and automated equipment shutdown to prevent fires, spills, and safety incidents.
⚙️ Advanced Features
Configurable ND/NE Operation: Four groups of four channels independently selectable for Normally De-energized (fail-safe) or Normally Energized (fail-secure) operation accommodates diverse safety logic requirements—ND for emergency trips (energize to alarm) and NE for run permissives (de-energize to alarm).
Epoxy-Sealed Reliability: Environmental sealing protects relay contacts from moisture, dust, and corrosive atmospheres in harsh industrial environments, extending MTBF to 150,000+ hours versus unsealed relays failing in 20,000-40,000 hours in refineries, offshore platforms, and chemical plants.
Integrated Arc Suppression: Factory-installed 250 Vrms suppressors across relay contacts eliminate voltage spikes during inductive load switching (solenoid valves, motor contactors), preventing false trips in adjacent monitoring circuits and extending relay contact life by 40% in high-cycle applications.
Front Panel Diagnostics: OK LED confirms module operation, TX/RX LED indicates 3500 rack communication, and individual CH Alarm LEDs identify active relay channels, reducing troubleshooting time from 2 hours to 15 minutes during commissioning and fault diagnosis in multi-rack systems with 200+ I/O points.
📋 Ordering Options
- Output Module (A): 01-Standard, 02-Failsafe, 03-Low Current, 04-Low Current Failsafe
- Hazardous Area (B): 00-None, 01-cNRTLus (C1D2), 02-ATEX/IECEx/CSA (C1Z2)
📦 Module Package
- 1× Bently Nevada 3500/33 Main Module (149986-01)
- 1× 16-Channel Relay I/O Module
- Arc suppressors (250 Vrms, pre-installed)
- Installation manual and wiring diagram
- Configuration documentation
Genuine Bently Nevada product with global service support. Essential for vibration analysts, protection engineers, and instrumentation technicians managing 3500 series machinery protection systems in power generation, oil & gas, petrochemical, and heavy industry. Compatible with all 3500 rack configurations and monitoring modules (3500/40M, 3500/42M, 3500/50, 3500/60, 3500/62).