- 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 5,000 parts in stock
- Brand: Pilz
Pilz 890030 Monitoring relays / monitoring devices
Mfr # 890030
$381.32
/ea
Availability: Available to Order|Typically ships within 7–10 business days. Lead time may vary based on supplier availability.
- Free Shipping on orders over $50
- Hassle-Free 30-Day Returns
- 12-Month Warranty for all products
- Get 10% off—join our email list.
Accepted Payments
- Wide Measurement Range: Monitors analogue input signals from 0–550 V AC/DC, ensuring broad application coverage.
- Low Power Consumption: Efficient operation with only 2 W of DC power consumption.
- 24 V DC Supply: Designed for systems requiring a 24 V DC input supply, offering compatibility with standard control architectures.
- Reliable Monitoring Relay: Provides dependable supervision of voltage conditions in line with Pilz’s trusted safety and monitoring technology.
The Pilz S1WP 9A 24VDC UM 0-550VAC/DC (890030) is a versatile monitoring relay designed to provide precise and reliable supervision of voltage conditions in industrial applications. As part of Pilz’s well-regarded family of monitoring devices, it combines flexibility, energy efficiency, and robust performance, making it an indispensable tool for maintaining safe and reliable automation systems.
At the heart of the device’s functionality is its wide analogue measurement range, capable of monitoring voltages from 0–550 V AC/DC. This broad span allows the relay to be used across a diverse array of applications, from low-voltage control systems to high-voltage equipment supervision. Such flexibility reduces the need for multiple monitoring devices, simplifying system design and enhancing cost-efficiency.
The relay is powered by a 24 V DC supply, making it compatible with standard industrial control systems. With a power consumption of only 2 W, it offers an energy-efficient solution that minimises operating costs while delivering reliable performance. This low energy footprint also helps reduce heat generation within control cabinets, supporting longer component life and improved system stability.
Engineered for industrial resilience, the S1WP is designed to integrate into demanding environments where voltage monitoring is critical for both safety and productivity. By continuously supervising input voltage conditions, the device helps identify abnormalities such as overvoltage, undervoltage, or supply loss. Early detection of such issues ensures that corrective measures can be taken promptly, reducing the likelihood of equipment damage, process downtime, or unsafe conditions.
The relay also accommodates practical installation requirements, supporting a maximum conductor cross-section suitable for standard industrial wiring practices. This simplifies connection and ensures a secure and durable interface with associated electrical systems. Its compact form factor allows for efficient use of space in control cabinets, supporting both new system builds and retrofits.
Pilz has built a reputation for excellence in monitoring and safety technology, and the S1WP 9A 24VDC UM 0-550VAC/DC reflects this heritage. By combining robust voltage monitoring with efficiency and ease of use, it helps facilities achieve compliance with safety regulations while maintaining high levels of operational reliability.
Industries such as manufacturing, energy, processing, and logistics can all benefit from the wide measurement capabilities of this device. Whether used to safeguard sensitive equipment, ensure stable power quality, or integrate into larger automation architectures, the S1WP provides the dependable supervision required for modern industrial systems.
In summary, the Pilz S1WP 9A 24VDC UM 0-550VAC/DC (890030) offers a complete solution for voltage monitoring across a wide range of applications. With its broad measurement range, efficient power consumption, 24 V DC supply compatibility, and proven Pilz reliability, it stands as a vital component for ensuring safe, efficient, and uninterrupted industrial operations.
| Manufacturer | Pilz |
|---|
Related Products
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.