- 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 505225 Safety switches
Mfr # 505225
$155.55
/ea
Availability: Available to Order|Typically ships within 7–10 business days. Lead time may vary based on supplier availability.
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- ATEX Certified for Dust Zones: Certified under SEV 12 ATEX 0121 X, meeting II 3D Ex mc tc IIIC T80°C classification for hazardous dust atmospheres.
- 24 V DC Operation: Compatible with standard 24 V DC supply and switching voltage, ensuring seamless integration into safety circuits.
- Compact Sensing Range: Provides an 8 mm sensing distance, suitable for precise monitoring of guards, covers, and access points.
- Industrial-Grade Reliability: Non-contact design minimises wear, ensuring long service life and consistent performance in demanding environments.
The Pilz PSEN 1.2P-25 / PSEN 1.2-20 / 8 MM / ATEX / IX1 (505225) is a non-contact safety switch developed for reliable operation in hazardous industrial environments. Specifically designed for use in ATEX dust zones, this switch combines compact sensing technology, robust certification, and seamless system integration to ensure safe machine monitoring in even the most demanding conditions.
The switch operates on a 24 V DC supply voltage with a 24 V switching voltage, making it fully compatible with standard industrial safety control systems. This ensures straightforward integration without requiring additional adaptation, supporting both new installations and retrofitted safety upgrades. Its simplicity of voltage compatibility reduces engineering effort and increases reliability across a wide range of machinery.
A standout feature of this device is its ATEX certification. Approved under SEV 12 ATEX 0121 X and designated as II 3D Ex mc tc IIIC T80°C, it is suitable for installation in Zone 22 hazardous dust areas. Industries such as food processing, grain handling, pharmaceuticals, and chemical manufacturing often encounter dust accumulation that can present explosion risks. The PSEN 1.2P-25 ensures that safety monitoring remains uncompromised while complying with international safety standards for explosive atmospheres.
The switch’s 8 mm sensing distance enables accurate and dependable monitoring of protective equipment such as covers, hatches, and safety gates. Its non-contact design reduces mechanical wear, preventing deterioration that is typical with mechanical switches. This design not only extends the service life of the device but also ensures consistent safety performance with minimal maintenance requirements.
Built with industrial-grade durability, the PSEN 1.2P-25 can withstand the harsh conditions typical of modern manufacturing and process environments. Its robust construction ensures resilience against vibration, dust exposure, and continuous operational demands. By combining compact design with proven reliability, the switch provides flexibility for use in installations where space is limited yet safety cannot be compromised.
For system integrators and operators, the PSEN 1.2P-25 delivers multiple advantages:
Compliance with ATEX requirements, ensuring legal and safe operation in explosive dust zones.
Ease of integration into standard 24 V safety circuits.
Reduced downtime and maintenance thanks to its non-contact operation.
Long-term reliability, protecting both operators and equipment in high-risk environments.
In summary, the Pilz PSEN 1.2P-25 / PSEN 1.2-20 / 8 MM / ATEX / IX1 (505225) is a robust and dependable safety switch engineered for hazardous dust zones. With ATEX certification, compact sensing capability, and industrial durability, it offers a reliable safeguard for personnel and machinery in industries where safety compliance and operational reliability are critical.
| Manufacturer | Pilz |
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