Product Details

Modicon AS-P933-001 is a robust rack power supply and reliable plc power module designed for the classic Modicon 984 automation rack system. This legacy supply unit converts AC mains input into stable regulated DC power to feed the backplane, CPU, communication adapters and all installed I/O cards within the control chassis. Built with internal filtering and voltage regulation circuits, this rack power supply delivers clean, steady power and suppresses voltage fluctuations that may trigger unexpected faults in sensitive control logic. As a discontinued legacy spare, this plc power module is widely stocked as a drop-in replacement for failed power units, allowing ageing Modicon control racks to resume stable operation without replacing the entire automation system.

Basic Parameters

Brand: Modicon (AEG legacy)

Model: AS-P933-001

Product Type: Rack Mount Power Supply Module

Input Voltage: 100–240 VAC, 50 / 60 Hz

Output: Regulated DC for backplane bus

Form Factor: Standard slot-mounted module

Mounting: Fits Modicon 984 series rack

Product Status: Discontinued legacy spare

Net Weight: Approximately 1.45 kg

Supported Functions

This rack power supply supports continuous power conversion, voltage stabilization and ripple suppression for the whole PLC rack. The plc power module provides built-in input fusing and fault indication, and it can maintain stable output under normal load variation. This legacy supply unit also isolates the mains side from the internal backplane to reduce electrical noise transmission from the factory power grid to control boards.

Core Functions

As the central rack power supply, this plc power module provides reliable regulated power for every electronic board on the backplane. It monitors internal operating status and cuts off output when severe overload or short-circuit occurs to protect expensive CPU and I/O hardware. This legacy supply unit serves as a direct replacement to restore power distribution for ageing Modicon automation racks.

Hardware Specifications & Environmental Features

Operating Temperature: -10°C ~ +60°C

Storage Temperature: -20°C ~ +70°C

Relative Humidity: 5%–95%, non-condensing

Housing: Industrial metal shielding shell

Protection: Overload, short-circuit and overvoltage protection

Anti-interference: EMI filtering and surge suppression circuit

Compatibility: Matches 800 series backplane and compatible peripheral modules

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm 800 series backplane compatibility, pulse signal type, counting mode and preset logic before ordering.

This is from our current stock.

available stock.xlsx