- 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 890070 Monitoring relays / monitoring devices
Mfr # 890070
$457.43
/ea
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- Wide Measurement Range: Monitors voltages from 0–550 V AC/DC, ideal for versatile applications in industrial systems.
- Flexible Supply Compatibility: Operates on a 110–230 V AC/DC supply, supporting both alternating and direct current sources.
- Energy-Efficient Operation: Low power consumption of 5 VA, optimised for continuous monitoring.
- Reliable Protection Relay: Provides dependable supervision of electrical parameters, ensuring safe and stable operation of equipment.
The Pilz S1WP 9A 110-230VAC/DC UM 0-550VAC/DC (890070) is a highly reliable monitoring relay designed to supervise and safeguard electrical systems in industrial automation. With its ability to operate across a wide supply range and monitor voltages up to 550 V, this device offers both versatility and precision in ensuring equipment safety and operational continuity.
The unit is powered by a flexible supply voltage of 110–230 V AC/DC, allowing it to be used in a wide variety of installations without the need for different variants. This adaptability makes it ideal for engineers and system integrators seeking a monitoring device that supports both AC and DC power sources while simplifying inventory management and reducing costs.
With a measurement range of 0–550 V AC/DC, the relay provides comprehensive supervision of industrial voltage levels. It continuously monitors input signals to detect under-voltage, over-voltage, or other anomalies that could compromise system integrity. This wide monitoring range makes it suitable for applications ranging from machine tools and control cabinets to energy distribution systems and safety-critical installations.
The device has a low power consumption of just 5 VA, ensuring energy-efficient performance even when deployed in large numbers across complex systems. This efficiency contributes to sustainable operations and helps reduce the overall energy footprint of automation solutions.
Built to Pilz’s exacting safety and reliability standards, the S1WP 9A ensures robust protection for electrical equipment by detecting faults early and enabling quick intervention. This not only prevents equipment damage but also enhances operator safety by ensuring that machines are shut down safely when irregularities occur.
The unit’s monitoring relay functionality provides a dependable safeguard in applications where stable voltage supply is critical. For example, in manufacturing, process automation, logistics, and energy management systems, the relay ensures that machinery operates only under safe voltage conditions. Its reliability reduces downtime, minimises maintenance, and supports compliance with international safety standards.
The device is designed for long-term durability, with a rugged build capable of withstanding the environmental and operational stresses of industrial use. Its compact format allows for efficient integration into control cabinets, saving valuable panel space while delivering robust functionality.
In summary, the Pilz S1WP 9A 110-230VAC/DC UM 0-550VAC/DC (890070) is a flexible, efficient, and standards-compliant monitoring relay. With its wide measurement range, dual supply compatibility, low power consumption, and dependable voltage supervision, it provides engineers with a trusted solution for maintaining safe and efficient industrial operations.
| Manufacturer | Pilz |
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