TSXDMZ28AR Schneider Electric 28 Point Relay Discrete Base

Product Overview

The TSXDMZ28AR is a discrete relay I/O base module engineered by Schneider Electric for the Modicon TSX Micro automation platform. Designed for industrial process control, this module integrates 28 total channels comprising 16 AC discrete inputs (100–120 V AC) and 12 Normally Open (NO) relay outputs. Equipped with screw terminal blocks and certified to IEC 1131-2 Type 2 standards, the TSXDMZ28AR provides high isolation between field circuits and logic controls. Weighing 0.5 kg (1.1 lb) in a compact housing, it mounts directly onto standard DIN rails in control cabinets.

Core Technical Advantages

• Combined High-Density I/O: Integrates 16 AC inputs and 12 relay outputs into a single Modicon TSX Micro slot base.
• Versatile Relay Output Ratings: Supports switching loads up to 264 V AC and 34 V DC with a 3 A conventional thermal current (Ith).
• Rugged Electrical Isolation: Provides 1500 V isolation for 1 second with an insulation resistance of ≥ 10 MΩ.

Technical Specifications

Industrial Applications

• Machinery Control Automation: Interfaces 110V limit switches and control pushbuttons to TSX Micro PLCs.
• Process Actuator Driving: Operates small solenoids, contactors, and indicator lamps via NO relay contacts.
• HVAC & Facility Monitoring: Controls auxiliary pumps, dampers, and status feedback loops in plant panels.

Wiring & Installation

• Rack Mounting: Snap the TSXDMZ28AR onto the TSX Micro rack or DIN rail until the locking clip engages.
• Field Terminal Wiring: Connect 100–120 V AC inputs and relay load wiring directly to the screw terminal block.
• Sensor Compatibility: Wire 2-wire proximity switches directly to input terminals observing voltage limits.

Engineering Advantages

• High Load Capacity: Relay contacts switch up to 220 VA AC resistive/inductive and 40 W 24V DC loads.
• Wide Thermal Endurance: Operates continuously from -25°C to +70°C in demanding panel environments.
• Compact Form Factor: Weighs only 0.5 kg to streamline backplate load distribution.

Technical FAQs

Q1: What input voltage rating does the Schneider TSXDMZ28AR module support?
A1: The module features 16 discrete input channels rated for 100...120 V AC at 47...63 Hz.

Q2: What is the maximum continuous current capacity for the relay outputs?
A2: The NO relay outputs support a conventional free air thermal current (Ith) of 3 A per channel.

Q3: Is the TSXDMZ28AR compatible with 2-wire proximity sensors?
A3: Yes, the input circuitry is fully compatible with 2-wire AC proximity sensors.