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- Bently Nevada
- 3500/32M 125720-02
- 4-Channel Relay I/O Module
- USA
- 241 mm × 24.4 mm × 99.1 mm
- 0.4kg
- Xiamen, China
- New & In Stock
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
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Brand: Bently Nevada
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Series: 3500 Series Machinery Protection & Condition Monitoring System
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Model: 3500/32M 125720‑02
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Type: Four-Channel Relay Output Module (Full-Height)
Product Description
The 3500/32M 125720‑02 is a full-height relay output module designed for robust and flexible industrial machinery protection. It houses four independent relays, each configurable with “Alarm Drive Logic” using AND/OR voting through software. This module enhances alarm/shutdown capabilities in rotating equipment protection systems. It features epoxy-sealed circuitry, arc suppression, and front-panel LEDs for status and communication feedback, delivering dependable performance in demanding environments.
Applications
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Backup and shutdown logic for turbines, compressors, and generators
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Automated safety logic in oil, gas, and petrochemical plants
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Alarm and shutdown interlocks in manufacturing and water treatment
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Protection of critical rotating assets through reliable relay control
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Fast-acting machine protection in harsh industrial settings
Product Advantages
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Configurable Output Logic: Each channel supports independent AND/OR logic programming
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Arc Suppression Onboard: Ratings up to 250 Vrms protect relay longevity
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Diagnostic LEDs: Real-time visibility of OK, TX/RX, and channel alarm states
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Rugged Construction: Epoxy-sealed and rated for –30 °C to +65 °C, high humidity
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Modular Scalability: Easily add modules to expand relay output capacity
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 3500/32M 125720‑02 |
| Relay Outputs | 4 SPDT channels (individually configurable) |
| Contact Rating | 5 A at 24 V DC or 120 V AC; ~100,000 cycles |
| Arc Suppression | Internal, rated for 250 Vrms |
| LED Indicators | OK, TX/RX, and per-channel alarm |
| Power Consumption | Approximately 5.8 W |
| Operating Temperature | –30 °C to +65 °C |
| Storage Temperature | –40 °C to +85 °C |
| Humidity Toleration | Up to 95%, non-condensing |
| Dimensions (H × W × D) | 241 mm × 24.4 mm × 99.1 mm |
| Weight | Approximately 0.4 kg |
Related or Similar Models (Same Series)
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 3500/32 125712‑01 | Previous four-channel relay output module | 241 × 24.4 × 99.1 | ~0.7 kg |
| 3500/33 | Sixteen-channel relay control module | Full-size format | ~1.2 kg |
| 3500/34 TMR | Redundant Triple-Modular relay module | Full-size format | ~1.3 kg |
| 3500/25M 149369‑01 | Enhanced Keyphasor for phase reference | Compact | ~0.43 kg |
| 3500/42M | Multi-channel vibration monitoring module | Full-size format | ~0.9 kg |
Popular Models from the Same Brand
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| 3500/15 | AC/DC power input module | 140 × 80 × 50 | ~0.4 kg |
| 3500/25 | Keyphasor module (phase synchronization) | 140 × 80 × 50 | ~0.5 kg |
| 3500/40M | Displacement/velocity monitoring module | 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 |
Frequently Asked Questions (FAQ)
Q1: What does the 3500/32M 125720‑02 module do?
A1: It provides four independently configurable relay outputs for alarm and shutdown control in rotating equipment systems.
Q2: Can each relay channel be configured separately?
A2: Yes, each channel supports separate AND/OR logic programming.
Q3: What is the relay contact specification?
A3: Contacts are rated at 5 A switching at 24 V DC or 120 V AC and rated for approximately 100,000 cycles.
Q4: Is arc suppression included?
A4: Yes, arc suppression up to 250 Vrms is built into the module.
Q5: What diagnostics are available?
A5: LEDs indicate module health (OK), communication status (TX/RX), and per-channel alarms.
Q6: What are the operating and storage temperatures?
A6: The module operates from –30 °C to +65 °C and stores between –40 °C and +85 °C.
Q7: Where is this module installed in the rack?
A7: It occupies a full-height slot immediately to the right of the transient data interface in the 3500 rack.
Q8: How much power does the module consume?
A8: It typically draws about 5.8 W during normal operations.
Q9: Can multiple modules be used in one rack?
A9: Yes, additional modules can be added to expand relay output capabilities.
Q10: What are its size and weight?
A10: It measures approximately 241 × 24.4 × 99.1 mm and weighs around 0.4 kg.