PLCs, Power Supplies & Others

Module Overview

The Schneider TSXDSZ32T2 relay output module provides 32 isolated dry-contact outputs for heavy industrial loads. This premium-grade unit belongs to the TSX Premium 57 automation platform. It handles high inrush currents from motor starters and contactors effectively. Facility engineers choose this module for demanding switching applications.

Output Channel Configuration

Each of the 32 channels uses a single-pole double-throw relay with silver-alloy contacts. The module supports normally-open and normally-closed configurations per channel. You can independently wire each output for specific control requirements. All relays feature mechanical indication flags for manual verification. This design offers maximum flexibility for complex control schemes.

Contact Ratings and Switching Capacity

The Schneider TSXDSZ32T2 handles 2 amperes at 240 V AC or 30 V DC per contact. It switches inductive loads up to 0.5 amperes without derating. The relay contacts withstand 5 amperes of inrush current for short durations. Each output breaks 1 ampere at 240 V AC for resistive loads. These ratings suit most industrial actuator and valve applications.

Isolation and Safety Features

The module provides 1500 V AC isolation between channels and the backplane. It also offers 500 V AC isolation between individual channel pairs. The relays incorporate arc suppression circuits for extended contact life. A fused common supply connection protects against overcurrent events. This isolation safeguards the CPU from field wiring faults.

Relay Operating Characteristics

Each relay has a nominal coil voltage of 24 V DC with ±10% tolerance. The coil consumes 0.5 watts during energized operation. Typical response time measures 8 milliseconds for pickup and 5 milliseconds for dropout. The mechanical life exceeds 20 million operations under no-load conditions. The electrical life reaches 100,000 cycles at rated load.

Communication and Backplane Interface

The module exchanges data with the CPU through the Premium backplane bus. It receives output commands and returns diagnostic status information. The unit supports both normal and forced output modes for testing. Configuration software assigns each channel a unique I/O address. This integration ensures deterministic update times for critical processes.

Physical Dimensions and Weight

This relay module measures 120 millimeters in width and 65 millimeters in height. Its depth totals 95 millimeters including the terminal block. The unit weighs 0.65 kilograms due to the electromechanical components. It installs directly into any slot of the TSX Premium rack. A secure locking mechanism holds the module firmly in place.

Power Consumption and Thermal Management

The Schneider TSXDSZ32T2 draws 250 milliamperes from the 5 V DC backplane supply. It requires an external 24 V DC source for relay coil energization. The external supply draws 350 milliamperes when all relays activate. Total heat dissipation reaches approximately 8 watts at full load. The module requires adequate ventilation for reliable operation.

Field Wiring and Connector Details

Two removable 20-pin terminal blocks accept all field wiring connections. The terminals accept wire sizes from 0.2 to 1.5 square millimeters. Each terminal block includes strain relief for cable management. The connector headers feature polarization keys for correct installation. This modular wiring simplifies maintenance and replacement tasks.

LED Indication and Diagnostics

Thirty-two amber LEDs display the energized status of each output relay. A green LED indicates proper backplane communication with the CPU. A red LED flashes for over-temperature or fuse fault conditions. The module also reports welded-contact detection through software diagnostics. These indicators facilitate rapid field troubleshooting.

Environmental and Operating Conditions

The unit operates within 0°C to 55°C ambient temperature range. It tolerates 10% to 95% non-condensing relative humidity. The module meets IEC 61131-2 and UL 508 industrial standards. Its IP20-rated housing protects against accidental contact. The conformal-coated PCB resists moisture and airborne contaminants.

Technical Specifications Table

Details