Description Order Placement Process and Guarantees Warranty: 365 days Lead time: typically 1 week if in stock; no more than 1 month latest Payment: 50% advance, balance before delivery Express options: FedEx, UPS, DHL Key Features 16-channel failsafe relay outputs (SPDT): Each channel can be assigned to specific alarms or statuses; failsafe behavior de‑energizes on fault or power loss. Programmable alarm logic: Configure AND/OR voting, alert/danger, Not‑OK, and channel status mapping through 3500 configuration software. Arc suppression built in: Standard 250 Vrms arc suppressors help extend contact life and reduce EMI on switching. Rugged contact ratings: Up to 5 A (resistive) with well-documented DC/AC limits for standard and safety-centric applications. Full-height module with rear I/O: Clean separation of front diagnostics and rear field wiring; simplifies cabinet layout. Non‑TMR version: For TMR applications, use 3500/34; this model is aimed at conventional rack deployments. System-friendly integration: Powered by the rack backplane; configuration via standard 3500 software toolchain—no external comms required. Technical Specifications Brand / Model Bently Nevada 3500/33-02-00 (16-Channel Failsafe Relay Output Module) HS Code 9032.90 (typically declared; subject to local customs rulings) Power Requirements Powered via 3500 rack backplane; typical consumption ~5.8 W Relay Type / Channels 16 x SPDT, epoxy sealed, four groups of four; selectable Normally Energized or Normally De‑energized Contact Life 100,000 operations at 5 A (24 Vdc or 240 Vac resistive) Contact Ratings (resistive) Standard systems: DC up to 5 A, 60 Vdc max; 70 W (24 Vdc), 10 W (48 Vdc), 9 W (60 Vdc). AC up to 5 A, 30 Vrms max, 150 VA. Functional safety/hazardous systems: up to 5 A at 30 Vdc or 30 Vac. Operating Temperature -30°C to 65°C (-22°F to 150°F); 95% RH non-condensing Dimensions & Weight Front (main) module: 241 × 24.4 × 242 mm, ~0.7 kg (like 149986-01) Rear I/O module: 241 × 24.4 × 99.1 mm, ~0.4 kg  (like 149992-02) Signal I/O Types Outputs: 16 x relay (SPDT) for alarms/shutdowns; Inputs: alarm/OK status and channel logic from rack backplane Communication Interfaces Internal 3500 rack backplane (no external fieldbus on module) Installation Method Full-height front slot, with matching full-height rear I/O; install in any slot to the right of the Rack Interface Module (RIM) Software/Firmware 3500 Config ≥ v3.3; Data Acquisition ≥ v2.40; Display ≥ v1.40; with 3500/93 LCD (FW P or newer) or 3500/94 VGA (FW C or newer) Certifications (module option) EMC: EN 61000-6-2, EN 61000-6-4, EN 55011/CISPR 11; LVD: 2014/35/EU; Safety: EN 61010-1. This build: B=00 (no specific hazardous-area approvals). Application Fields From my experience, the 3500/33-02-00 fits best where you need deterministic, hardware-level outputs from a protection rack—without adding a separate safety PLC for basic trip logic. Oil & Gas: Turbocompressors, pumps, gas turbines—map Danger alarms to ESD or fuel trip valves. Power Generation: Steam and gas turbine protection, condenser vacuum alarms, bearing high‑vibration trips. Petrochemical: Fans, blowers, and critical agitators—drive MCC trips and annunciators. Metals & Mining: Critical conveyor drives and mills—use logic voting before shutdown to avoid nuisance trips. General Industry: Route alarms to DCS, horns/beacons, or hardwired interlocks where SIL isn’t mandated. A maintenance lead told me they replaced two DIN relay banks with a single 3500/33, cutting panel depth and making loop checks faster during turnarounds. Advantages & Value Reliability: Failsafe design de‑energizes on power loss or Not‑OK; epoxy‑sealed relays and built‑in arc suppression improve longevity. Compatibility: Native to the 3500 ecosystem—no protocol mapping or gateway boxes. Cost & space savings: Consolidates 16 outputs in one module; typically reduces wiring, terminal blocks, and troubleshooting time. Configuration flexibility: Adjust logic in software instead of rewiring; easier MOC and documentation control. Lifecycle support: Widely used in brownfield sites; spare pooling across units is straightforward. Quality & Certifications EMC: EN 61000-6-2, EN 61000-6-4; Emissions per EN 55011/CISPR 11 Electrical Safety: EN 61010-1; LVD 2014/35/EU EU EMC: 2014/30/EU Hazardous area: This variant is B=00 (no specific hazardous approvals). For Zone 2/Class I Div 2, choose agency-approved options (e.g., B=01/B=02), subject to local availability. Manufacturer warranty: typically 1 year; our supplied units ship with a 365-day warranty. Notes on Selection & Compatible Components Not for TMR: For triple modular redundancy, specify Bently Nevada 3500/34. Displays: Works with 3500/93 LCD (FW P or newer) and 3500/94 VGA (FW C or newer) for clear status and alarm visualization. Typical rack companions: 3500/22M RIM, 3500/15 power supplies, and condition monitoring modules such as 3500/40M, 3500/42M—mapping respective alerts to this relay module is straightforward. Agency approvals: If your site requires Zone 2/Class I Div 2, select a 3500/33 with the appropriate B option and confirm regional certifications. Quick reminder: Keep relay switching voltages within the limits above, especially in safety or hazardous-area loops (typically ≤ 30 Vac/Vdc). It appears that most nuisance issues we see in the field are down to overvoltage on contact arcs or missing coil suppression. Please contact Sunny [email protected] for the best price. ➱ sales manager: Sunny ➱ email mailto: [email protected] ➱ Skype/WeChat: 18059884797 ➱ phone/Whatsapp: 86 18059884797 ➱ QQ: 3095989363 ➱ Website:www.sauldcs.com