1. Core Technical Specifications

Module Type：3500/32 4-Channel DPDT Programmable Relay Output Module

System Compatibility：Bently Nevada 3500 series full rack system

Channel Configuration：4 fully independent programmable DPDT relay output channels

Relay Structure：Dual-pole double-throw contact design for dual-circuit synchronous output

Contact Load Rating：5A rated switching capacity for conventional industrial control loops

Logic Function：Custom AND/OR combined voting logic, channel latching, normal/true state configuration

Signal Source：Supports rack-wide alert, danger, module fault and PPL status signal driving

Mechanical Life：100,000+ standard switching cycles for long-term continuous operation

Status Indication：Independent LED indicators for individual channel operating status

Structure Specification：Full-height front module + full-height rear I/O module dual-slot structure

Operating Temperature：-30℃ ~ +65℃ industrial working range

Storage Temperature：-40℃ ~ +85℃

Certification：Class I Div 2, CSA, ATEX, IECEx full hazardous area compliance

2. Official Ordering Selection & Front/Rear Board Matching

Standard Ordering Model：3500/32-AA-BB-CC

AA Code: Logic Operation Mode

BB Code: Contact & Working Grade

CC Code: Safety Certification Grade

Front & Rear Board Official Matching List

3. Core Product Advantages

The 3500/32 stands out in the 3500 relay module lineup with its exclusive DPDT dual-pole relay design, offering higher signal reliability than conventional SPDT single-pole modules. The dual-circuit synchronous output structure effectively avoids single-circuit contact failure-induced misoperation, greatly improving the stability of safety interlock loops. Equipped with flexible multi-dimensional programmable logic, each channel supports independent configuration of AND/OR voting, fault latching and state trigger modes, which can flexibly match various graded alarm and linkage control requirements. Different from the high-density 3500/33 and TMR safety-focused 3500/34, this module adopts a moderate four-channel layout, avoiding hardware redundancy and cost waste for medium-scale monitoring systems. The epoxy-sealed relay structure features excellent dustproof and anti-aging performance, adapting to long-term unattended industrial operation. It supports full rack signal resource calling, can link alarm signals of all monitoring modules in the system, and provides powerful and flexible logic expansion capabilities for standardized machinery protection systems.

4. Industrial Application Scenarios

The 3500/32 four-channel DPDT relay module is widely used in standardized medium-scale machinery protection systems across energy, chemical and manufacturing industries, serving as the mainstream universal signal output unit. In thermal power auxiliary equipment monitoring systems, it is responsible for alarm output and auxiliary linkage control of fans, water pumps and other rotating equipment, realizing timely fault warning and equipment linkage protection. In petrochemical production lines, the module matches medium-sized compressor unit protection loops, providing reliable dual-pole signal output for equipment over-vibration and over-temperature faults to prevent false trips and missing trips. It is also commonly used in industrial general machinery condition monitoring and factory equipment safety transformation projects, perfectly adapting to application scenarios that require both reliable dual-circuit signal verification and moderate channel expansion capacity, and is the most cost-effective universal relay module in the 3500 series.