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Siemens 6ES7321-1BH02-0AA0
SIMATIC S7-300 Digital Input Module, 16DI, 24VDC
Product Description
The SIMATIC S7-300 Digital Input Module with 16 isolated digital inputs is designed for seamless integration into industrial automation systems. This module operates at 24V DC and is equipped with a 20-pole front connector for easy installation. It ensures high performance and reliability, meeting the stringent requirements of modern automation environments.
Featuring IEC 61131 compliance, the module supports various input voltage ranges and signal types, making it versatile for different applications. The module's robust design includes optocoupler isolation between channels and the backplane bus, enhancing operational safety and reducing interference.
With a typical power loss of 3.5W, the module is energy-efficient and suitable for continuous operation. It can handle up to 16 simultaneously controllable inputs, ensuring efficient processing even in demanding conditions. The module also supports connectable encoders, including 2-wire sensors, providing flexibility in system design.
Although the module does not feature diagnostic functions or alarms, it includes a status indicator LED for each digital input, allowing for straightforward monitoring of input states. The module's compact dimensions (40mm width, 125mm height, 120mm depth) and lightweight design (approx. 200g) make it easy to integrate into existing setups.
Ideal for use in hazardous locations, the module holds various approvals, including EMV, FM, CCC-Ex, and maritime applications. It complies with environmental...
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Offer details
- Offer from:
- Trusted supplier — Poland, member since 2021, 5–9 employees
- Availability:
- 1 pc.Updated at: 13-10-2026In-Stock
- Warranty:
- 12 months
- Condition:
- Used
Specifications
- Brand
- Siemens
- Supply voltage
- 24 V DC
- Permissible range (DC)
- 20.4 V - 28.8 V
- Input current from backplane bus
- 10 mA max.
- Power loss
- 3.5 W typ.
- Number of digital inputs
- 16
- Input characteristic curve
- IEC 61131, type 1
Available Offers
(78)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
| Condition Used | Availability 1 pc. Updated at: 13-10-2026In-Stock | Supplier PolandTrusted supplier — member since 2021, 5–9 employees | Warranty 12 months | ||
| Condition Used | Availability 4 pcs. Updated at: 10-03-2026In-Stock | Supplier GermanyTrusted supplier — member since 2022 | Warranty 1 month | ||
| Condition Used | Availability 2 pcs. Updated at: 10-03-2026In-Stock | Supplier GermanyTrusted supplier — member since 2022 | Warranty 1 month | ||
| Condition Used | Availability 1 pc. Updated at: 10-03-2026In-Stock | Supplier GermanyTrusted supplier — member since 2022 | Warranty 1 month | ||
| Condition Used | Availability 3 pcs. Updated at: 10-03-2026In-Stock | Supplier GermanyTrusted supplier — member since 2022 | Warranty 1 month | ||
| Condition Used | Availability 1 pc. Updated at: 10-03-2026In-Stock | Supplier GermanyTrusted supplier — member since 2022 | Warranty 1 month |
Offer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Siemens 6ES7321-1BH02-0AA0, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 13-10-2026

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