- 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 312621 I/O systems
Mfr # 312621
$27.54
/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
- Durable housing materials: Lower section constructed from PA (polyamide) and upper part from PC (polycarbonate) for robust mechanical stability.
- Reliable terminal technology: Equipped with fixed cage clamp terminals for secure and vibration-resistant wiring.
- Compact yet practical design: Features a height of 155 mm, optimised for space-efficient cabinet integration.
- Part of the PSSU I/O family: Provides scalable input/output expansion for modular safety and automation systems.
The Pilz PSSU BP-C 1/12 C (part no. 312621) is a high-quality I/O system component designed for use in modular automation and safety applications. As part of the PSSU (Pilz Safe System Unit) series, it enables reliable and efficient system expansion, ensuring consistent communication between field devices and higher-level controllers in demanding industrial environments.
A standout feature of the PSSU BP-C 1/12 C is its robust housing construction, with the lower section manufactured from PA (polyamide) and the upper part from PC (polycarbonate). This material combination provides strength, impact resistance, and resilience against thermal and environmental stresses, ensuring a long service life even under continuous use. The high-quality enclosure materials also contribute to electrical insulation and operator safety.
Connectivity is managed through cage clamp terminals with a fixed terminal style, offering secure, maintenance-friendly wiring. Cage clamps are widely recognised for their ability to hold conductors firmly, even under vibration or mechanical stress, reducing the risk of loose connections and improving system reliability. This design also simplifies installation, making it easy for engineers to achieve consistent and error-free wiring across multiple devices.
Measuring 155 mm in height, the unit is designed with practical dimensions that balance compactness and accessibility. Its size allows it to fit neatly within control cabinets, supporting streamlined layouts while maintaining adequate space for connection and servicing. This makes it suitable for both new installations and retrofit projects where cabinet space may be limited.
As a PSSU I/O family component, the BP-C 1/12 C supports modular system expansion, allowing engineers to scale their automation or safety systems as requirements evolve. It acts as a reliable base or connecting element for additional modules, ensuring seamless communication and data exchange within the larger control system. This modularity makes it particularly well-suited to industries where production requirements frequently change, such as automotive, packaging, and logistics.
The PSSU BP-C 1/12 C is also engineered with compliance in mind. By working in harmony with Pilz’s safety controllers and relays, it contributes to building systems that meet international safety standards such as ISO 13849 and IEC 62061. This ensures not only reliable machine performance but also adherence to regulatory requirements, giving businesses confidence in their safety infrastructure.
In practical applications, the device provides an excellent solution for connecting sensors, actuators, and other field devices in decentralised systems. Its robust housing, secure terminal connections, and modular design make it an ideal choice for demanding industrial environments where safety, flexibility, and reliability are priorities.
In summary, the Pilz PSSU BP-C 1/12 C is a durable, compact, and efficient I/O system component. With its high-strength housing materials, secure cage clamp terminals, modular expandability, and practical dimensions, it delivers a dependable foundation for building scalable, standards-compliant automation and safety systems.
Product Specifications
| Brand | Pilz |
|---|---|
| Categories | I-O Systems |
| Related Products | Pilz 312651 I/O systemsBeckhoff EL3068 EtherCAT TerminalBeckhoff KL4494 Bus TerminalBeckhoff EL1512 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.