- Alternative Part Number: PSEN 2.1P-21/PSEN 2.1-20/8MM/LED/1
- Supply voltage (V): 24 V
- Type of supply voltage U1: DC
- Switching voltage: 24 V
- Ambient temperature: -25 – 70 ¬∞C
- Max. ambient temp. at 2000 m: +70 °C
Free Shipping: $50+ U.S. orders | $350+ International orders
12-Month Warranty
Hassle-Free Returns Within 30 days
Over 100,000 parts in stock
- Brand: Pilz
Pilz 312652 I/O systems
Mfr # 312652
$23.61
/ea
Availability: Available to Order|Typically ships within 7 to 10 business days. Lead time may vary based on supplier availability.
- Free shipping on U.S. orders over $50 and international orders over $350.
- Hassle-Free 30-Day Returns.
- 12-Month Warranty for all products.
- Get 10% off—join our email list.
Accepted Payments
- High Humidity Resistance: Operates reliably at up to 93% relative humidity at 40 °C, suitable for moisture-prone industrial environments.
- Durable Housing Materials: Built with a polyamide (PA) lower section and polycarbonate (PC) upper section for strength and longevity.
- Secure Fixed Terminals: Features fixed-style terminals to ensure stable and long-lasting electrical connections.
- Compact Dimensions: Space-efficient design with a height of 129 mm, ideal for modular control panels.
The Pilz PSSU BS-R 1/8 S (312652) is a reliable and robust base module within the Pilz PSSu I/O system, specifically designed to provide a sturdy foundation for modular automation and safety architectures. This base unit supports the connection and expansion of PSSu input and output modules, making it an essential component for flexible and scalable system designs.
Engineered for challenging environmental conditions, the PSSU BS-R 1/8 S is capable of operating in high humidity, rated at up to 93% relative humidity at 40 °C. This tolerance ensures reliable functionality in environments where moisture or fluctuating climatic conditions may otherwise compromise electrical performance. Such durability makes the module especially suitable for industries like food processing, logistics, packaging, and process automation.
The housing materials used in its construction reinforce its reliability. The lower section is manufactured from polyamide (PA), a material prized for its robustness and wear resistance, while the upper section is made from polycarbonate (PC), offering impact resistance and long-term stability. Together, these materials ensure that the module can withstand the physical and mechanical demands of industrial use, providing a long service life even under intensive operating conditions.
The module employs a fixed terminal style, which guarantees stable and permanent wiring connections. Fixed terminals are particularly advantageous in safety-related applications, as they minimise the risk of loose connections, accidental disconnections, or signal interruptions. For operators and maintenance teams, this design improves system reliability while simplifying inspections and servicing.
With a height of 129 mm, the PSSU BS-R 1/8 S combines durability with a compact form factor that is well-suited to modern industrial control cabinets. Its dimensions allow for efficient use of cabinet space while still providing robust mechanical and electrical connectivity for additional modules.
As part of the Pilz PSSu modular I/O system, the PSSU BS-R 1/8 S integrates seamlessly into scalable architectures. The PSSu system is designed for flexibility, enabling engineers to add or adapt modules as operational requirements evolve. This modularity ensures future-proof solutions, protecting investments and simplifying system expansion.
For system integrators and operators, the benefits of the PSSU BS-R 1/8 S are clear:
Reliable operation in humid environments, maintaining functionality where conditions are demanding.
Durable housing construction, combining strength, impact resistance, and long service life.
Secure wiring connections through fixed terminal design.
Scalable modularity, supporting growth and system adaptation.
In summary, the Pilz PSSU BS-R 1/8 S (312652) is a dependable and versatile base module for modular automation and safety systems. With its high humidity tolerance, durable housing, compact design, and reliable terminal connections, it provides a solid foundation for building flexible, efficient, and future-ready control architectures.
Product Specifications
| Brand | Pilz |
|---|---|
| Categories | I-O Systems |
| Related Products | Beckhoff EL6070 EtherCAT TerminalPilz 314093 I/O systemsBeckhoff EL3054 EtherCAT TerminalBeckhoff EL3356 EtherCAT Terminal |
| Manufacturer | Pilz |
|---|
We’re Always Ready to Assist You
Submit A Request
Reach us through our form.
Give Us A Call
Connect with a representative.
Live Chat
Chat live with our support team.

Reviews
There are no reviews yet.