Product Introduction
The Bently Nevada 3500/32 (Part Number 125720-01) is a 4‑Channel Relay Module for the 3500 Series machinery protection system. It provides programmable alarm and shutdown outputs based on monitored parameters such as vibration, position, speed, or temperature. The module features four independent relays, each with dedicated setpoints and logic, and can be configured for latching or non‑latching operation, as well as normally energized or de‑energized states. The 125720-01 variant typically includes standard relay outputs with specific approval options (e.g., CSA, ATEX for safe area) and is fully compatible with the 3500 rack’s internal communication backplane. The module occupies one full‑height slot in a 3500 rack.
Parameters
| Parameter | Specification |
|---|---|
| Model / Part Number | 3500/32 125720-01 |
| Product Type | 4‑Channel Relay Module |
| Number of Relays | 4 (independent, form C) |
| Contact Rating | 5 A at 240 Vac / 30 Vdc (resistive) |
| Relay Output Options | Latching or non‑latching, normally energized or de‑energized |
| Input Source | Internal 3500 backplane (data from monitor modules) |
| Module Slot Width | 1 full‑height slot in 3500 rack |
| Dimensions (W × H × D) | 24.9 × 241.3 × 218.4 mm (0.98 × 9.50 × 8.60 in) |
| Weight | 0.68 kg (1.5 lbs) |
| Operating Temperature | 0 to +65 °C (32 to +149 °F) |
| Storage Temperature | –40 to +85 °C (–40 to +185 °F) |
| Humidity | 5% to 95% non‑condensing |
| Response Time | < 50 ms (typical) |
| Approval Options (typical) | CSA, ATEX, IECEx – for safe area rack installation |
Application Scenarios
Alarm and Shutdown Logic – Installed in 3500 racks to trigger audible/visual alarms or initiate machine shutdown when vibration, axial position, or temperature exceeds user‑defined Alert and Danger setpoints.
Protection of Turbomachinery – Used on steam turbines, gas turbines, centrifugal compressors, and large pumps to provide reliable relay outputs for emergency trip systems (ETS).
Channel Voting and Redundancy – Can be configured for 1‑out‑of‑2 or 2‑out‑of‑3 voting schemes in critical applications (e.g., nuclear power plants, offshore platforms) to prevent nuisance trips while ensuring safety.
Remote Indication and Control – Drives external annunciator panels, PLC inputs, or plant DCS systems with dry contact closures for machinery status.
Retrofit and Upgrade – Replaces older 3500/32 versions or relay modules from earlier Bently Nevada systems (e.g., 7200 series) in power generation, oil & gas, and heavy industrial facilities.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
Your trust is the driving force for our continuous progress, submit your requirements immediately to get exclusive quotes
