3500 Series Relay Module – Hardware Specifications and Functional Overview
Core Configuration

Relay outputs:

4 independent DPDT relays

Each relay features individually programmable alarm driver logic

Supports AND / OR logic combinations

Designed for flexible alarm annunciation and protection interlocking

Contact Ratings

Contact voltage:

250 VAC

30 VDC

Rated current:

10 A (resistive load)

Contact construction:

Epoxy-sealed contacts for enhanced corrosion resistance and long-term reliability

Control Logic and Alarm Functions

Supports configurable combinations of:

Alert status

Danger (Trip) status

Not OK signal

PPL (Channel Status)

Compatible with voting logic and interlock schemes

Suitable for both protection and control applications within the 3500 monitoring system

Power and System Integration

Powered directly from the 3500 system backplane

Compatible with 24 VDC system power

Typical power consumption: < 5 W

Communicates via the 3500 backplane diagnostic bus

Installation

Module type: Full-height 3500 rack module

Installed in the slot to the right of the Transient Data Interface (TDI) module

Hot-swappable when system design permits

Physical and Environmental Specifications

Dimensions: 241 mm × 24.4 mm × 99.1 mm

Weight: Approx. 0.4 kg

Operating temperature: –30 °C to +65 °C

Storage temperature: –40 °C to +85 °C

Compliance and Reliability

Complies with EN 61000-6-2 and EN 61000-6-4 industrial EMC standards

Designed for reliable operation in harsh industrial electromagnetic environments

Typical Applications

Machinery protection relay outputs

Alarm annunciation systems

Safety interlocking and voting logic

Integration with DCS, PLC, and shutdown systems

BENTLY 3500/32M 125720-01 4-Channel Relay Output Module