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Siemens 6ES7407-0KA00-0AA0 — Power Supplies

Siemens 6ES7407-0KA00-0AA0 PS 407 Power Supply, 10A, 120/230

MPN6ES7407-0KA00-0AA0

Siemens SIMATIC S7-400, PS 407 power supply, 10A, 120/230V AC input, 5V/10A DC output, order code 6ES7407-0KA00-0AA0.

$584.20 – $1,039.00Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

6ES7407-0KA00-0AA0 — Specifications
ParameterValue
Date 14.06.2015Changes preserved © Copyright Siemens AG 2015

Product details

The Siemens 6ES7407-0KA00-0AA0 is a SIMATIC S7-400 PS 407 power supply delivering 10A at 5V DC from a 120/230V AC input. It powers the S7-400 rack and its modules — backplane current for the CPU, I/O, and communication processors. The 10A rating at 5V DC is the headline number: it determines how many expansion modules the supply can support before you need a second unit or a load-sharing configuration.

Integration note

The PS 407 snaps into the S7-400 rack — no DIN-rail mount needed. The AC input terminals accept 120/230V AC; the DC output is a fixed 5V/10A rail shared across the backplane. When populating the rack, sum the 5V current draw of every module (CPU, IM, SM, FM, CP) and keep it under 10A. Exceed that and the supply folds back or the rack browns out. A common field mistake is loading the rack to 9.8A and then adding a CP that draws another 0.5A — that trips the internal current limit.

Frequently asked questions

Where can I buy 6ES7407-0KA00-0AA0 and how do I get a price?

This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current pricing and lead time — no stock count or price is published here.

What is the closest pin-compatible alternative to 6ES7407-0KA00-0AA0?

The PS 407 10A is the standard S7-400 power supply for 120/230V AC racks. A higher-current sibling (PS 407 20A, 6ES7407-0RA00-0AA0) exists for racks with heavier module loads, but it is not pin-compatible — it occupies the same slot but delivers 20A at 5V DC. No direct pin-compatible alternative within the same family is listed.

What does the date 14.06.2015 on the component line mean?

The date 14.06.2015 is a copyright date on the Siemens documentation for this power supply, not a production date or revision level. It indicates when the document was last updated.

What compliance documentation does Siemens provide for 6ES7407-0KA00-0AA0?

The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for this order code. Standard Siemens S7-400 power supplies typically carry CE and cULus marks; verify the specific unit's nameplate or request a declaration of conformity at quote time.

MPN
6ES7407-0KA00-0AA0