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Brand: Bently Nevada
Series: 3500 Series Machinery Protection & Condition Monitoring System
Model: 3500/32 149986‑02
Type: Full-Height, 4-Channel Relay Control Module (SPDT relays)
The 3500/32 149986‑02 is a full-height relay module that delivers four independent relay outputs, each offering programmable voting logic. Designed for high-speed and reliable control, it’s vital for alarm, shutdown, or interlock functions in rotating equipment protection systems. Modules of this type are mounted in the slots immediately after the Transient Data Interface Module in a 3500 rack setup.
Real-time shutdown or protective actions for turbines, generators, compressors
Alarm logic and interlocks in oil & gas facilities
Protection schemes in manufacturing, pumping systems, and water treatment
Automated response control in petrochemical and power generation environments
Any system demanding configurable relay outputs for machinery protection
Independent Logic per Channel: Each relay supports AND/OR vote logic for tailored control.
Arc Suppression Built-In: Protects relays from electrical spikes (rated up to 250 Vrms).
Diagnostic LEDs: Includes module health, communications, and per-channel alarm status indicators.
Rugged Construction: Epoxy-sealed and rated for wide temperature and humidity ranges.
Hot-Swappable & Modular: Easily expands protection logic by adding modules without disrupting the system.
| Parameter | Specification |
|---|---|
| Model | 3500/32 149986‑02 |
| Relay Outputs | 4 SPDT relays (configurable as DPDT logic) |
| Contact Life | ~100,000 cycles @ 5 A (24 V DC or 240 V AC) |
| Arc Suppressor | Built-in, rated at 250 Vrms |
| Logic Programming | AND/OR alarm drive, per-channel |
| LED Indicators | OK, TX/RX, per-channel alarm |
| Power Consumption | ~5.8 W typical |
| Operating Temp | –30 °C to +65 °C |
| Storage Temp | –40 °C to +85 °C |
| Humidity Tolerance | 95% non‑condensing |
| Dimensions (H × W × D) | 241 mm × 24.4 mm × 242 mm |
| Weight | ~0.7 kg |
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 3500/32 125712‑01 | Earlier version of 4-channel relay module | Same size | ~0.7 |
| 3500/32M 149986‑02 | Another relay control variant (certified, etc.) | — | — |
| 3500/33 | 16-channel relay control module | Larger | ~1.2 |
| 3500/34 TMR | Triple-modular-redundant relay module | Larger | ~1.3 |
| 3500/25M 149369‑01 | Enhanced Keyphasor phase reference module | Compact | ~0.43 |
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| 3500/15 | AC/DC Power Input Module | 140 × 80 × 50 | ~0.4 kg |
| 3500/25 | Keyphasor Module (phase reference) | 140 × 80 × 50 | ~0.5 kg |
| 3500/40M | Displacement/Vibration Monitor | 220 × 180 × 95 | ~1.2 kg |
| 3500/44M | GT Vibration Monitor Module | 260 × 258 × 240 | ~0.8 kg |
| 3500/53 | Overspeed Detection Module | 140 × 80 × 50 | ~0.5 kg |
Q1: What does the 3500/32 149986‑02 module do?
A1: It provides four independently configurable relay outputs for alarm, shutdown, or interlock functions in machinery protection systems.
Q2: Can the relays be programmed differently per channel?
A2: Yes—each channel supports customizable AND/OR alarm logic.
Q3: What are the relay contact ratings?
A3: Approximately 100,000 cycles at 5 A, switching either 24 V DC or 240 V AC.
Q4: Does it offer protection against electric arcs?
A4: Yes, it includes built-in arc suppression rated up to 250 Vrms.
Q5: What environmental conditions is it rated for?
A5: Operates between –30 °C and +65 °C with up to 95% non‑condensing humidity.
Q6: Where is it installed within the 3500 rack?
A6: In a full-height slot, directly to the right of the Transient Data Interface module.
Q7: What diagnostic features are included?
A7: LEDs indicate OK status, TX/RX communications, and per-channel alarms.
Q8: How much power does it consume?
A8: Roughly 5.8 W in normal operation.
Q9: Can multiple modules be deployed for expanded logic?
A9: Yes—modules can be added as needed for expanded output capabilities.
Q10: What is its physical size and weight?
A10: It measures approximately 241 × 24.4 × 242 mm and weighs around 0.7 kg.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.