Overview
It delivers precise relay outputs for alarms, trips, and auxiliary control signals, actively supporting the safe operation of critical rotating machinery.
As a result, engineers often choose 3500/32M 149986-02 to replace aging modules or to expand relay control capacity in turbines, compressors, and generators.
Furthermore, this module connects directly with 3500 Series monitoring cards, enabling fast and deterministic relay actuation.
Additionally, technicians can easily install 3500/32M 149986-02 into standard 3500 rack slots, which significantly reduces downtime during maintenance or system upgrades.
Specification
| Parameter | Specification |
|---|---|
| Model | 3500/32M 149986-02 |
| Manufacturer | Bently Nevada |
| Series | 3500 Machinery Protection System |
| Module type | 4-Channel Relay Control Module |
| Number of relay channels | 4 independent channels |
| Relay contact type | SPDT (Single-Pole Double-Throw), NO/NC contacts |
| Contact rating | 2 A @ 30 VDC, 0.5 A @ 125 VAC |
| Trigger type | Alarm, trip, or auxiliary signals from 3500 monitoring cards |
| Input interface | Internal 3500 rack bus signals |
| Slot type | Standard 3500 rack module |
| Front indicators | Power LED, Channel A-D status LEDs |
| Operating temperature | 0°C to +65°C |
| Storage temperature | −40°C to +85°C |
| Relative humidity | 95% non-condensing |
| Module height | 120.7 mm |
| Module width | 25.4 mm |
| Module depth | 241 mm |
| Approximate weight | 0.35 kg |
| Power consumption | Approximately 6 W |
| Internal energy storage | None, no batteries or capacitors |
| Mounting method | Direct insertion into 3500 rack backplane |
| Typical applications | Turbines, compressors, generators, pumps, critical rotating machinery |
| Response time | <10 ms typical relay actuation |
| Isolation voltage | 500 V between relay contacts and module circuitry |
| Electrical endurance | ≥100,000 mechanical operations per contact |
| Relay output logic | Supports NO/NC contact logic for alarm and trip functions |
| Wiring interface | Standard 3500 backplane connections with screw terminals |
| Compliance | Meets industrial machinery protection standards (CE, UL listed) |
| Diagnostics | LED status indicators per channel for power and relay activity |
| Environmental protection | Non-condensing, industrial-grade design |
| Shock & vibration tolerance | Designed for harsh rotating machinery environments |
FAQ
A1: Yes, 3500/32M 149986-02 ships as factory-new and original equipment from Bently Nevada.
Q2: Do you have this module in stock?
A2: Yes, 3500/32M 149986-02 is available in stock for immediate order processing.
Q3: How fast can 3500/32M 149986-02 be shipped?
A3: We typically ship within three days to two weeks, depending on order size and destination.
Q4: Which logistics carriers do you use?
A4: We usually ship 3500/32M 149986-02 via DHL and other reliable international express services.
Q5: What happens if there is a quality issue with this module?
A5: We support returns for 3500/32M 149986-02 within thirty days if any quality-related problem occurs.
Q6: Can this module be used with older 3500 racks?
A6: Yes, 3500/32M 149986-02 is fully compatible with existing 3500 Series racks and monitoring cards.
















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