Emerson / Artesyn / Astec 73-554-0330 Power Supply Module

The Emerson / Artesyn / Astec 73-554-0330 is a 144 W chassis-mount power supply module engineered for industrial and commercial systems requiring multiple isolated outputs with integrated protection and control. This MP4 Module range unit delivers dual-output configurations with 12 V / 15 V options and incorporates current sharing, remote sense, voltage adjustment, and module inhibit functionality across all outputs.

Technical Specifications Electrical Performance

Power rating: 144 W

Input voltage: 115/230 VAC, 60 Hz

Output configurations: 4LL (V1 = 12 V at 10 A, V2 = 12 V at 4 A); 4NN (V1 = 15 V, V2 = 15 V)

Switching frequency: 250 kHz

Output/output isolation: > 1 MΩ

Precharge resistor (4NN): 12 Ω

Isolated 5 V bias voltage available

Power factor correction included Protection & Control

Current share on outputs rated 10 A or greater

Remote sense on outputs > 2 A

Overload protection on all outputs

Voltage adjustment on all outputs

Module inhibit: TTL, isolated (singles and dual outputs)

Global DC OK signal

Input-OK signal with status indicator LED Physical & Thermal

Dimensions: 330 mm × 280 mm × 23 mm

Weight: 1.2 kg

Cooling: Forced air with field-replaceable fan

Key Features The module supports external output sequencing via isolated TTL module inhibit control. Global and individual enable/inhibit capability allows flexible power management in multi-module systems. Margining is available on single-output modules for precision voltage tuning. All outputs feature independent overload protection with voltage adjustment range across the load envelope.

Compliance The unit meets EN61000-3-2 harmonic distortion limits and CISPR22 / EN55022 Curve B conducted and radiated EMI standards. CE Mark compliance is maintained. Servicing must be performed at an Astec Authorized Service Station to preserve safety certification. System-level line disconnection and grounding provisions protect against shock hazards.

Compatibility & Integration The 73-554-0330 integrates into the MVP Series and MP4 Module range ecosystems, supporting multi-module configurations with shared control and inhibit signaling.