HONEYWELL 2MLP-DC42

Overview

HONEYWELL 2MLP-DC42 is a DC power supply module designed for the Honeywell MasterLogic-200 PLC system. It converts a 24 VDC nominal industrial supply into a regulated 5 VDC output to power the MasterLogic-200 CPU, I/O modules and peripheral components installed on the controller base. The module provides stable low-voltage DC power for control electronics in industrial cabinets, with overcurrent and overvoltage protection to safeguard the PLC and connected field equipment. The 2MLP-DC42 belongs to the Honeywell MasterLogic-200 non-redundant parts group, specified as DC24V / DC5V in the MasterLogic-200 assembly model selection guide. It is a discontinued legacy PLC power supply, still traded globally as an MRO spare for existing Honeywell MasterLogic-200 control installations.

Features

HONEYWELL 2MLP-DC42 accepts a 24 VDC nominal DC input, with an input voltage range of 18 to 32 VDC, and delivers a regulated 5 VDC output at up to 6 A output current. The regulated output supports stable power for sensitive PLC electronics, with line regulation of about 0.2 percent and load regulation of about 0.5 percent. Ripple and noise are typically 50 mV peak to peak. The module includes overcurrent protection at approximately 6.6 A or above and overvoltage protection in the 5.5 V to 6.5 V range, helping prevent damage to the CPU, I/O modules and connected devices during overload or fault conditions.

The power module is built for control cabinet mounting in MasterLogic-200 PLC racks. It includes a built-in input fuse and a run contact, and the supply response time is 10 ms or shorter. Typical efficiency is reported at 85 percent or higher, with one source citing an 89 percent efficiency rating. The compact, rugged design suits factory automation panels, process control cabinets, energy systems and machinery retrofits where a direct MasterLogic-200 replacement power module is required.

Specs

Product series: Honeywell MasterLogic-200 PLC power supply Model: HONEYWELL 2MLP-DC42 Type: DC power supply module for MasterLogic-200 PLC system Input voltage: 24 VDC nominal, 18 to 32 VDC range Input current: Up to 80 A per distributor specification; module supply current provided from the controller power bus Output voltage: 5 VDC regulated, approximately ±2 percent accuracy Output current: 6 A maximum Line regulation: About 0.2 percent Load regulation: About 0.5 percent Ripple and noise: 50 mV peak to peak typical Efficiency: 85 percent or higher typical, up to about 89 percent Response time: 10 ms or shorter Protection: Overcurrent protection ≥6.6 A; overvoltage protection 5.5 V to 6.5 V; built-in input fuse Status: Run contact output Mounting: MasterLogic-200 PLC base or control cabinet mounting Operating temperature: -20 to 60 degrees Celsius per distributor data; one source lists -25 to 70 degrees Celsius Relative humidity: 5 to 95 percent non-condensing Certifications: CE, TUV, UL508, CSA per distributor data Country of origin: USA Product status: Discontinued legacy PLC power supply, industrial MRO spare for existing MasterLogic-200 systems

Principle

HONEYWELL 2MLP-DC42 operates as an internal regulated DC power module for the MasterLogic-200 PLC. The 24 VDC industrial supply enters the module through the protected input terminals and passes through filtering, fuse and input protection circuitry. The DC-DC conversion stage steps the input down to a regulated 5 VDC rail, which supplies the CPU, I/O modules and other low-voltage electronics on the controller base. Feedback circuitry monitors output voltage and current, adjusting the conversion stage to maintain line and load regulation. If output current exceeds the overcurrent threshold or output voltage enters the overvoltage range, the protection function limits or shuts down the output to protect connected PLC hardware. The run contact provides a power or status signal to indicate module operation to the control system or maintenance diagnostics.

Applications

HONEYWELL 2MLP-DC42 is used as the DC power supply for Honeywell MasterLogic-200 PLC systems in manufacturing machines, production lines, material handling, packaging equipment, process automation, energy management, utilities, chemical and process plants, water and wastewater, sugar mill and pulp mill control, and other industrial control cabinets. In existing MasterLogic-200 installations originally fitted with the 2MLP-DC42, the module serves as a direct drop-in replacement spare, compatible with the original PLC base mounting, power wiring and CPU and I/O configuration.