- 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
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- Brand: Pilz
Pilz 777950 Safety relays / protection relays
Mfr # 777950
$816.11
/ea
Availability: Available to Order|Typically ships within 7 to 10 business days. Lead time may vary based on supplier availability.
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- Wide Supply Voltage Range: Operates on 24-240 V AC/DC, providing maximum flexibility for integration into global automation systems.
- Multiple Output Options: Equipped with 2 normally open (N/O) safety contacts, 1 normally closed (N/C) auxiliary contact, and 2 semiconductor outputs for versatile circuit control.
- Low Power Consumption: Energy-efficient operation with only 5 VA on AC and 3 W on DC, ensuring minimal energy demand.
- Reliable Safety Relay Design: Ensures fail-safe switching and compliance with industrial safety standards, making it suitable for high-demand applications.
The Pilz PSWZ X1P 3V / 24-240VAC/DC 2N/O 1N/C 2SO (Part Number: 777950) is a highly versatile safety relay designed to provide dependable monitoring and fail-safe switching across a wide range of industrial applications. With its extended supply voltage capability, robust design, and multiple output types, this relay offers both flexibility and reliability, meeting the stringent demands of modern safety systems.
One of its most notable advantages is the broad supply voltage range of 24–240 V AC/DC, which allows the same device to be deployed in diverse environments and across international installations. This eliminates the need to stock multiple variants for different power systems, simplifying logistics for OEMs, integrators, and maintenance teams.
The output configuration further enhances its versatility. With 2 normally open (N/O) safety contacts, the relay provides safe switching paths to disconnect hazardous energy sources in an emergency. The 1 normally closed (N/C) contact serves as an auxiliary channel for feedback or diagnostic purposes, ensuring operators and controllers can reliably monitor the status of the relay. In addition, the inclusion of 2 semiconductor outputs (SO) offers rapid, wear-free switching, ideal for high-frequency operations where durability is key.
Energy efficiency is another important characteristic. With a power consumption of only 5 VA (AC) or 3 W (DC), the relay contributes to reduced operational costs and lower energy usage. Despite this efficiency, it maintains the high reliability and fail-safe performance expected from Pilz devices.
The PSWZ X1P 3V is designed to meet international standards for safety relays, ensuring compliance with global safety regulations. It is ideally suited for applications such as emergency stop circuits, safety gate monitoring, two-hand control systems, and general machinery protection. Its robust build guarantees reliable performance even in demanding industrial conditions where vibration, electrical noise, or variable environmental factors may be present.
By combining electromechanical safety contacts with semiconductor outputs, this relay offers the best of both worlds: the security and robustness of mechanical contacts for safety functions, and the speed and longevity of semiconductor outputs for auxiliary or high-speed tasks. This makes it especially useful in complex automation environments where multiple types of loads and control signals must be managed simultaneously.
In summary, the Pilz PSWZ X1P 3V / 24-240VAC/DC 2N/O 1N/C 2SO (777950) is a powerful, flexible, and energy-efficient safety relay. With its wide supply voltage compatibility, mixed output configuration, and industrial-grade reliability, it provides a comprehensive solution for safeguarding operators and machinery while streamlining system integration across varied industrial environments.
Product Specifications
| Manufacturer | Pilz |
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