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- Bently Nevada
- 3500/32 125720-02
- 4-Channel Relay I/O Module
- USA
- 241 mm × 24.4 mm × 99.1 mm
- 0.4kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
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Product Overview
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Brand: Bently Nevada
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Series: 3500 Series Machinery Protection & Condition Monitoring
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Model: 3500/32 125720‑02
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Type: Four-Channel Relay Output Module (Full-Height)
Product Description
The 3500/32 125720‑02 is a full-height relay I/O module offering four SPDT relay channels. Each relay supports independent programming with AND/OR “Alarm Drive Logic” and fits into the standard rack to the right of the transient data interface. The module includes built-in arc suppression and diagnostic LEDs and is designed to operate under harsh industrial conditions.
Applications
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Rotating Machinery Protection: Turbines, compressors, and generators
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Oil & Gas Automation: Valve and motor shutdowns in hazardous zones
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Manufacturing & Processing: Logic control for pumps, conveyors, and motors
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Water Management: Automated alarm/shutdown for critical pumping systems
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Process Safety Systems: Fast and reliable relay output for machinery trip logic
Product Advantages
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Independent Relay Control: Each of the four channels can operate with custom logic.
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Built-in Arc Suppression: Designed to suppress up to 250 Vrms, extending relay lifespan.
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Diagnostic Transparency: Includes LEDs for module health, communications, and per-channel alarm status.
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Industrial Durability: Designed for –30 °C to +65 °C, high humidity tolerance, and epoxy-sealed protection.
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Flexible Integration: Configurable logic supports diverse fault and alert combinations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 3500/32 125720‑02 |
| Relay Output | 4 SPDT relay channels (DPDT configuration possible) |
| Contact Rating | 5 A @ 24 V DC or 120 V AC |
| Arc Suppression | 250 Vrms standard |
| Programmable Logic | AND/OR alarm drive, per channel |
| LED Indicators | OK, TX/RX, channel alarms |
| Power Consumption | ~5.8 W typical |
| Operating Temperature | –30 °C to +65 °C |
| Storage Temperature | –40 °C to +85 °C |
| Humidity Tolerance | Up to 95% non‑condensing |
| Dimensions | 241 mm × 24.4 mm × 99.1 mm |
| Weight | ~0.4 kg |
Related or Similar Models (Same Series)
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 3500/32 125712‑01 | Earlier version of four-channel relay output module | 241 × 24.4 × 99.1 | 0.7 |
| 3500/33 | Sixteen-channel relay module for expanded I/O | — | ~1.2 |
| 3500/34 TMR | Triple Modular Redundancy relay I/O module | — | ~1.3 |
| 3500/25M 149369‑01 | Enhanced Keyphasor module for phase synchronization | — | ~0.43 |
| 3500/42M | Vibration monitoring module with multiple channels | — | ~0.9 |
Popular Models from the Same Brand
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 3500/15 | AC/DC power input module | 140 × 80 × 50 | ~0.4 |
| 3500/25 | Keyphasor module (phase signal) | 140 × 80 × 50 | ~0.5 |
| 3500/40M | Displacement & velocity monitor | 220 × 180 × 95 | ~1.2 |
| 3500/44M | GT vibration monitor module | 260 × 258 × 240 | ~0.8 |
| 3500/53 | Overspeed detection module | 140 × 80 × 50 | ~0.5 |
Frequently Asked Questions (FAQ)
Q1: What is the function of the 3500/32 125720‑02?
A1: It delivers four independent relay outputs with programmable logic for machinery protection.
Q2: What is the contact rating of each relay?
A2: Rated for up to 5 A at 24 V DC or 120 V AC with built‑in arc suppression.
Q3: Can I program alarms with complex logic?
A3: Yes, each channel supports AND/OR logic for versatile fault response.
Q4: Are there diagnostic indicators?
A4: LEDs indicate module health (OK), communication (TX/RX), and each channel alarm.
Q5: How much power does it draw?
A5: Approximately 5.8 W during normal operation.
Q6: What are the temperature limits for operation?
A6: Operates from –30 °C to +65 °C, stores at –40 °C to +85 °C, with 95% humidity tolerance.
Q7: Where does it mount in the rack?
A7: It installs as a full-height module in slots adjacent to the transient data interface.
Q8: How heavy is it?
A8: Roughly 0.4 kg.
Q9: Can multiple units be added for more channels?
A9: Yes, you can install multiple relay modules for expanded output logic.
Q10: Does it require external arc suppression hardware?
A10: No—arc suppression is integrated up to 250 Vrms.
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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%.
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