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Siemens 6ES7403-1TA01-0AA0 — PLC I/O & Expansion Modules

Siemens 6ES7403-1TA01-0AA0 SIMATIC S7-400 extension rack, 18 slots

MPN6ES7403-1TA01-0AA0

NRND

Siemens SIMATIC S7-400 6ES7403-1TA01-0AA0 extension rack ER1, 18 slots, 482.5 x 290 x 27.5 mm, 4200 g, for signal modules only, 2 redundant PS slots, phase-out.

$1,544.00Ref. price · indicative, final on quote

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Siemens 6ES7403-1TA01-0AA0 datasheet (PDF)

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jun 2026

Specifications

6ES7403-1TA01-0AA0 — Electrical
Parameter	Value
Max.	70 °C

6ES7403-1TA01-0AA0 — Environmental
Parameter	Value
Min.	0 °C

6ES7403-1TA01-0AA0 — Mechanical
Parameter	Value
Height	290 mm
Width	482.5 mm
Depth	27.5 mm
Weight (approx.)	4 200 g

6ES7403-1TA01-0AA0 — Approvals
Parameter	Value
CE mark	Yes

6ES7403-1TA01-0AA0 — Other specifications
Parameter	Value
P bus	Yes
FM approval	Yes
KC approval	Yes
UL approval	Yes
Number of slots	18
Communication bus	No
EAC (formerly Gost-R)	Yes
RCM (formerly C-TICK)	Yes

Product details

Overview

The 6ES7403-1TA01-0AA0 is a Siemens SIMATIC S7-400 ER1 extension rack with 18 slots, accepting signal modules only and allowing two redundant power supplies to be plugged in. It carries a interface, measures 482.5 mm wide by 290 mm high by 27.5 mm deep, and weighs 4200 g.

Siemens lists the 6ES7403-1TA01-0AA0 as phase-out, discontinued as of 2025-10-01. Remaining units are available through surplus and broker channels; send an RFQ to confirm quantity and lead time for a last-time-buy or line-down need.