Honeywell 2MLQ-TR8A 64-Channel Transistor Output Module (Sink Type)

Product Introduction

When high-density digital output control is required in demanding industrial environments, the Honeywell 2MLQ-TR8A delivers reliable performance. This transistor output module features 64 output points with sink type configuration, designed for precise switching of DC loads. With photo coupler isolation and a rated load voltage of DC12/24V, it ensures signal integrity and protection against electrical noise. The 2MLQ-TR8A is a robust solution for applications needing many outputs in a compact form factor.

Technical Specifications Breakdown

The 2MLQ-TR8A offers 64 output points, each capable of sinking up to 0.1A, with a maximum of 2A per common (16 points per common). The load voltage range spans DC 10.2 to 26.4V, accommodating various industrial DC supplies. Off-leakage current is 0.1mA or less, minimizing power waste when outputs are off. Response time is 1ms or less for both off-to-on and on-to-off transitions under rated resistive load, enabling fast actuation. The module includes a surge absorber using a Zener diode, complying with IEC 61006-6-2 for transient protection.

Industry Applications

In manufacturing lines with numerous solenoid valves or indicator lights, the 2MLQ-TR8A provides centralized control. For example, in a packaging machine, 64 outputs can manage multiple actuators and sensors simultaneously, reducing the need for multiple smaller modules. The sink type output and 0.1A per point suit low-power DC devices common in automation. The module's hot swap support minimizes downtime during maintenance or expansion, a key benefit for continuous production environments.

Installation & Setup Guidance

Mount the 2MLQ-TR8A securely in a suitable enclosure, ensuring proper ventilation. Connect external DC power (DC12/24V ±10%, ripple ≤4 Vp-p) to the module's power terminals. Use 40-pin connectors (2 units supplied) for output wiring, with cable size 0.3 mm² as specified. The module supports hot swap, so you can replace it without powering down the system if the backplane allows. Verify that the output common wiring matches the 16-point common scheme to avoid overloading any single common terminal.

Maintenance & Reliability

Routine inspection of the 2MLQ-TR8A should include checking the operation indicators—LEDs for each 32-point group (switchable) show output status. Verify that the external power supply stays within the specified range to prevent damage. The photo coupler isolation enhances reliability by protecting the controller from load-side transients. Given the module's low weight (0.15 kg) and solid-state design, it requires minimal maintenance beyond periodic cleaning of connectors and ensuring proper airflow.

Buying Guide & Purchasing Advice

Before ordering the Honeywell 2MLQ-TR8A, confirm that your system supports 64-channel transistor output modules with sink type and 16-point common wiring. Verify the external power supply can deliver DC12/24V with sufficient current (module consumes 230mA when all points on). The module includes two 40-pin connectors; ensure compatible cables are available. For reliable sourcing, contact BluePLC Industrial to check current lifecycle status and availability. This module is ideal for expanding output capacity in existing Honeywell systems or new installations requiring high-density control.