6ES7322-1HF01-0AA0

Technical specifications

Manufacturer

Siemens

Manufacturer part no.

6ES7322-1HF01-0AA0

Type

Digital output module

Application

Digital I/O module

Used with

SIMATIC S7-300 rack (S7-300 backplane bus)

Load voltage L+ / Rated value (DC)

24 V

Input current / from supply voltage L+, max.

160 mA

Input current / from backplane bus 5 V DC, max.

40 mA

Power loss, typ.

3.2 W

Number of digital outputs

8; Relays

Digital outputs / Short-circuit protection

No

Controlling a digital input

Yes

Switching capacity of the outputs / on lamp load, max.

50 W

Switching capacity of the outputs / Low energy/fluorescent lamps with electronic control gear

10x 58 W

Switching capacity of the outputs / Fluorescent tubes, conventionally compensated

1x 58 W

Switching capacity of the outputs / Fluorescent tubes, uncompensated

10x 58 W

Output current / for signal "1" rated value

2 A

Output current / for signal "1" minimum load current

5 mA

Parallel switching of two outputs / for uprating

No

Parallel switching of two outputs / for redundant control of a load

Yes

Switching frequency / with resistive load, max.

2 Hz

Switching frequency / with inductive load, max.

0.5 Hz

Switching frequency / With inductive load (to IEC 60947-5-1, DC13/AC15), max.

0.5 Hz

Switching frequency / on lamp load, max.

2 Hz

Switching frequency / mechanical, max.

10 Hz

Relay outputs / Rated supply voltage of relay coil L+ (DC)

24 V; 110 mA

Relay outputs / Contact connection (internal)

Yes; SIOV-CU4032 K275G

Relay outputs / Number of operating cycles, max.

300 000; 230 V AC: 100 000; 120 V AC: 200 000; 24 V DC: 300 000 (at 2 A)

Relay outputs / Switching capacity of contacts / with inductive load, max.

2 A; 2 A (230 V AC), 2 A (24 V DC)

Relay outputs / Switching capacity of contacts / with resistive load, max.

2 A

Technical documents (1)

• Siemens data sheet 6ES7322-1HF01-0AA0

Key features

• 8 relay outputs
• 2 A per contact at 230 V AC or 24 V DC
• Lamp load up to 50 W
• Isolated
• 20-pin front connector
• Discontinued by Siemens on 1 October 2025; spare part only

About the Siemens 6ES7322-1HF01-0AA0

The Siemens 6ES7322-1HF01-0AA0 is the SM 322 relay output module with 8 isolated relay contacts. Siemens's data sheet gives 2 A per contact at 230 V AC or 24 V DC, a lamp load of up to 50 W and a 20-pin front connector. Siemens's data sheet marks it as a spare part. Siemens names no direct successor for the order number; its route forward is migration to the S7-1500 with ET 200MP.

What is the 6ES7322-1HF01-0AA0 used for?

It switches loads that need a volt-free contact or a different voltage from the PLC's 24 V, eight per module.

Lifecycle and successor

Discontinued: product cancellation (Siemens SiePortal), spare part only.

Before you order

What to photograph or confirm so the right unit is quoted.

Check the order number on the module. The front connector with the field wiring normally moves across to the replacement.