What is the output voltage of the PM550-400?

24V DC regulated output with 400W continuous power rating.

Is the PM550-400 suitable for my SIMATIC system?

Yes, it is designed to power Siemens SIMATIC S5, S7, and C7 control systems.

What are the dimensions and mounting requirements?

19-inch DIN rail mount in 1U height, standard for industrial control cabinets.

What input voltage range does it accept?

85-264V AC at 47-63Hz for worldwide mains compatibility.

Does it have protection features?

Yes, includes overload and short circuit protection for equipment safety.

Is this power supply still in production?

Yes, the PM550-400 remains active in Siemens' industrial automation portfolio.

What efficiency can I expect?

Typical efficiency is 90-95%, minimizing heat generation and power losses.

What certifications does this supply have?

Meets industrial standards for safety and EMC in accordance with EC directives.

Siemens

PM550-400

Siemens PM550-400 Stabilized Power Supply 400W 24V DIN Rail

Category Stabilized DC

MSRP

$794.05

Unit: pcs

PN (normalized): PM550400

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Datasheet

Specifications

power	400W
mounting	19-inch DIN rail
efficiency	90-95%
protection	Overload, short circuit
form_factor	DIN Rail 1U
input_voltage	85-264V AC
output_current	16.7A
output_voltage	24V DC
input_frequency	47-63Hz

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