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Siemens 6ES7408-1TA00-0XA0 — PLC I/O & Expansion Modules

Siemens 6ES7408-1TA00-0XA0 SIMATIC S7-400 Fan Subassembly, 2

MPN6ES7408-1TA00-0XA0

Siemens SIMATIC S7-400, fan subassembly for subrack with 18 slots, 24V DC, width 482.5 mm, depth 235 mm, height 109.5 mm.

$1,463.04Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

6ES7408-1TA00-0XA0 — Electrical
ParameterValue
Permissible range, lower limit (DC)19.2 V; Dynamic 18.5 V
Permissible range, upper limit (DC)30 V; dynamic 30.2 V
6ES7408-1TA00-0XA0 — Mechanical
ParameterValue
Height109.5 mm
Width482.5 mm
Depth235 mm
Weight (approx.)1 600 g
6ES7408-1TA00-0XA0 — Other specifications
ParameterValue
24 v DCYes
Inrush current, typ.0.9 A; at 24 V
With resistive load, max.200 mA
Rated supply voltage of relay coil l+24 V

Product details

The Siemens 6ES7408-1TA00-0XA0 is a fan subassembly for the SIMATIC S7-400 PLC system, specifically designed for the 18-slot subrack. It provides forced-air cooling for the modules installed in that rack, ensuring the CPU and I/O cards stay within their rated operating temperature range.

Supply voltage and electrical ratings

The permissible range is 19.2 V to 30 V DC under static conditions, with a dynamic tolerance down to 18.5 V and up to 30.2 V — wide enough to ride through minor bus sags without dropping out the fan. Typical inrush current at 24 V is 0.9 A; once running, the resistive load draw is 200 mA. That is a modest load on the backplane supply — a 24 V DC power supply sized for the CPU and I/O modules will handle this fan without additional derating.

Frequently asked questions

What are the key dimensions for panel integration?

Width is 482.5 mm (standard 19-inch rack width), depth is 235 mm, height is 109.5 mm. The subassembly bolts directly into the S7-400 18-slot subrack — no additional mounting hardware is required.

What voltage does this fan subassembly require?

It requires 24 V DC nominal. The permissible static range is 19.2 V to 30 V DC, with dynamic tolerance extending to 18.5 V on the low side and 30.2 V on the high side. Typical inrush is 0.9 A at 24 V, steady-state draw is 200 mA.

MPN
6ES7408-1TA00-0XA0