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SIEMENS · PRODUCT DETAILS

6ES7322-1HF01-0AA0

SIMATIC S7-300 SM 322 8-Relay Digital Output Module

CONDITION

New Original

WARRANTY

One year

PRODUCT SNAPSHOT

This isolated SM 322 module provides eight relay outputs for switching mixed industrial loads from an S7-300 station. Each channel is rated up to 2 A and the outputs are arranged in isolated groups of two.

A 20-pin front connector provides the field interface, while green status indicators show output state. Verify load voltage, contact loading and the established rack configuration before replacement.

DIRECT CONTACT

☎ +86 17359287459 ✉ sales9@apterpower.com

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OPERATING ENVIRONMENT · MONITORING & CONTROL

Isolated relay switching for mixed-voltage SIMATIC S7-300 loads

◈ Operating environment

Install in a compatible SIMATIC S7-300 central or expansion rack.

Connect field wiring through the required 20-pin front connector.

Use within the documented 24 V DC or 230 V AC load-voltage limits.

Observe contact protection and switching-frequency limits for inductive loads.

◎ Monitoring & control

Eight relay outputs switch resistive, inductive and lamp loads.

Output status LEDs provide channel-level operating feedback.

Galvanic isolation separates output groups and the backplane bus.

Commissioning checks should confirm load type, current and contact protection.

OFFICIAL TECHNICAL DATA

Product type SM 322 digital output	Digital outputs 8 relay outputs	Rated output current 2 A	Load voltage 24 V DC or 230 V AC
Channel grouping Isolated in groups of 2	Front connector 20-pin	Power loss 3.2 W typical	Product dimensions 4x12.5x12cm

Official Siemens data for article number 6ES7322-1HF01-0AA0.

Brand strengths meet practical automation needs

SIEMENS CHARACTERISTICS · APPLICATION FIELDS

Siemens brand characteristics

1	SIMATIC S7-300 modules provide documented rack-level compatibility.
2	Relay outputs accommodate both AC and DC industrial loads.
3	Channel status indication supports direct commissioning checks.
4	Defined electrical limits support structured maintenance and replacement.

Application fields

A	Contactor, solenoid and valve switching in S7-300 systems.
B	Mixed AC/DC load control in production equipment.
C	Relay-isolated outputs for material-handling and utility panels.
D	Service replacement in established SIMATIC S7-300 racks.

RECOMMENDED MODELS

SIEMENS

6ES7953-8LF00-0AA0	6ES7953-8LF20-0AA0	6ES7953-8LF30-0AA0	6ES7953-8LG20-0AA0	6ES7953-8LG30-0AA0
6ES7953-8LG31-0AA0	6ES7953-8LJ30-0AA0	6ES7953-8LJ31-0AA0	6ES7953-8LL31-0AA0	6ES7953-8LM31-0AA0
6ES7953-8LM32-0AA0	6ES7953-8LP31-0AA0	6ES7954-8LC03-0AA0	6ES7954-8LE03-0AA0	6ES7954-8LF03-0AA0
6ES7954-8LL03-0AA0	6ES7954-8LP03-0AA0	6ES7214-1BG40-0XB0	6ES7972-0AA01-0XA0	6ES7151-7AA20-0AB0

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