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Siemens 6ES7120-0AH01-0AA0 — PLC I/O & Expansion Modules

Siemens 6ES7120-0AH01-0AA0 ET 200SP Base, Obsolete

MPN6ES7120-0AH01-0AA0
Obsolete

Siemens SIMATIC ET 200SP interface module, 6ES7120-0AH01-0AA0. Obsolete. Max. 8 A supply via 1L+ and 2L+, 8 single-width slots, depth 40.5 mm.

$114.30Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

6ES7120-0AH01-0AA0 — Electrical
ParameterValue
Max.8 A; Via 1L+ and 2L+; max. 1.5 A per slot when fed in parallel
Isolation test voltage4 000 V DC
6ES7120-0AH01-0AA0 — Mechanical
ParameterValue
Height100 mm
Width145 mm
Depth40.5 mm
Weight (approx.)230 g
6ES7120-0AH01-0AA0 — Other specifications
ParameterValue
Number of single-width slots, max.8

Product details

The 6ES7120-0AH01-0AA0 supplies power to the backplane bus and modules: rated 8 A total via 1L+ and 2L+, with a per-slot limit of 1.5 A when power is fed in parallel, and accommodates up to 8 single-width slots. This unit is now obsolete.

Dimensions & Mounting

Panel footprint is 145 mm wide, 100 mm high, and 40.5 mm deep, mounting on standard DIN rail. Isolation tested at 4 000 V DC to the backplane.

Frequently asked questions

What is the maximum current supply of the 6ES7120-0AH01-0AA0?

The base unit supplies up to 8 A via 1L+ and 2L+, with a maximum of 1.5 A per slot when power is fed in parallel.

What is the depth of the 6ES7120-0AH01-0AA0?

Depth is 40.5 mm.

Can the 6ES7120-0AH01-0AA0 be directly replaced by the 6ES7148-4FA00-0AB0?

No. The 6ES7148-4FA00-0AB0 is a digital input module with a different function, dimensions (65 mm depth), and safety classification (SIL 3). It is not a form-fit-function replacement for a base unit.

MPN
6ES7120-0AH01-0AA0