Siemens 6ES7322-IHH01-0AA0 SIMATIC S7-300 SM 322 Digital Output Module

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SKU: 6ES7322-IHH01-0AA0 PLC & Industrial Automation Modules Siemens

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Siemens 6ES7322-IHH01-0AA0 SIMATIC S7-300 SM 322 Digital Output Module New Original Ready to ship

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SKU6ES7322-IHH01-0AA0
CategoryPLC & Industrial Automation Modules
BrandSiemens
SupportAvailability, lead time, condition, and shipping coordination

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Description
Additional information

Ready-to-Rack Summary

Part Number: 6ES7322-1HH01-0AA0 (16-Channel Relay Output, 5 A)
Condition: Factory New Sealed in Original Siemens Packaging
Warranty: 24 months (with full contact resistance & cycle test report)
Availability: 24-hour worldwide dispatch from EU/US stock
Channels: 16 potential-free relay contacts, 4 groups of 4

The Most Trusted Relay Card for S7-300 in 2025

Still the number-one choice when you need robust, potential-free switching of AC and DC loads up to 230 V / 5 A directly from the PLC rack. Plants love it because:

True dry contacts — no voltage drop or polarity issues
5 A continuous per channel (real-world 8 A peak)
LED per channel + group diagnostics in STEP 7
Over 3.5 million units in service, fully supported in TIA Portal 18

Failure Symptoms Triggering Immediate Orders

Technicians buy this exact card when:

elay output fault 16#E200 or single channel stuck ON/OFF
Burnt smell or audible clicking from relay coil failure
Diagnostic buffer shows hort-circuit to L+ after inductive kickback
Manual override no longer works on channels 9-12 — 96% of faults resolved by hot-swap in <20 minutes

Real-World Deployments 2024-2025

Oil & Gas: Shell refineries — 230 VAC valve actuators & motor starters
Building Automation: Siemens Desigo systems — lighting & HVAC damper control
Marine: Meyer Werft cruise ships — safety-critical door & pump relays

Technical Data Table

Parameter	Specification
Manufacturer	Siemens SIMATIC S7-300
Catalog Number	6ES7322-1HH01-0AA0
Channels	16 relay outputs (potential-free)
Contact Rating	5 A @ 230 V AC / 5 A @ 30 V DC
Switching Capacity	1200 VA AC / 150 W DC
Relay Lifetime	10 million mechanical / 100 k electrical @ 5 A
Diagnostics	LED per channel + group fault LED
Power Loss	4.5 W typical
Operating Temperature	0 to +60 °C
Dimensions (W H D)	40 — 125 — 120 mm
Weight	0.30 kg
Front Connector	20-pin (6ES7392-1AJ00-0AA0 required)