6ES7322-1BH01-0AA0

Product information

The 6ES7322-1BH01-0AA0 is a Siemens SIMATIC S7-300 digital output module: SM 322, isolated, 16 DO at 24 V DC, 0.5 A, single 20-pole connection, with a total current of 4 A per group and 8 A per module.

The outputs are electronically short-circuit protected, with a response threshold of typically 1 A, and the inductive shutdown voltage is limited to L+ (−53 V) on the module. Load resistance range spans 48 Ω to 4 kΩ, and a lamp load of up to 5 W can be switched.

Technical specifications

Manufacturer / family	Siemens · SIMATIC S7-300
Product type	SM 322, digital output, isolated
Number of digital outputs	16
Output rating	24 V DC, 0.5 A
Total current	4 A per group · 8 A per module
Short-circuit protection	Yes, electronic — response threshold typ. 1 A
Inductive shutdown voltage	Limited to L+ (−53 V)
Output voltage at signal “1”	Min. L+ (−0.8 V)
Load resistance range	48 Ω to 4 kΩ
Lamp load, max.	5 W
Load voltage L+	24 V DC (permissible 20.4–28.8 V DC)
Current from load voltage (no load)	Max. 80 mA
Power loss	4.9 W typical
Connection	1 × 20-pole

Specifications as published in Siemens product data for this article number. Verify against the nameplate of the unit offered to you.

Lifecycle status

Siemens product data identifies this article number as a spare part. Note that 0.5 A per output is a real constraint: where an actuator draws more, an interface relay or a different output module is required rather than relying on the module’s rating.

Typical applications

• Switching 24 V DC loads from an S7-300 rack — indicators, small valves and interface relays
• Rack expansion where additional digital outputs are needed
• Spare-part replacement on existing installations

Application examples describe typical uses of this product type. Suitability for your own installation must be confirmed against your engineering documentation. External protection requirements for the connected loads must be verified by the installer.

Related references

• 6ES7321-1BH02-0AA0 — SM 321 digital input module, 16 DI
• 6ES7332-5HD01-0AB0 — SM 332 analog output module, 4 AO
• 6ES7392-1AM00-0AA0 — front connector, 40-pole, screw terminals

Before you order

To confirm a specific unit, please provide the complete ordering code, a nameplate photograph, the quantity required and the delivery destination. Availability, condition, quantity, lead time and commercial terms are confirmed individually after inquiry.

Frequently asked questions

What is the current rating per output?
0.5 A per output at 24 V DC, with a total of 4 A per group and 8 A per module.

Are the outputs protected against short circuit?
Yes, electronically, with a typical response threshold of 1 A.

Can the module switch inductive loads directly?
The inductive shutdown voltage is limited to L+ (−53 V) on the module, but load-specific suppression and protection requirements still have to be checked for the application.

What load resistance is supported?
Between 48 Ω and 4 kΩ, with lamp loads up to 5 W.

What is the price and lead time?
Confirmed individually against current availability and quantity.