Phoenix Contact PSR-SCP-24UC/ESA4/3X1/1X2/B 24V AC/DC Safety Relay with 3 Safety Contacts ESA4

Phoenix Contact ESA4 model PSR-SCP-24UC/ESA4/3X1/1X2/B is a 24V AC/DC safety relay featuring 3 safety contacts and 1 auxiliary contact designed to ensure industrial safety in control circuits. It is widely used in machinery for emergency-stop and safety door monitoring to reduce operational risks and protect personnel and equipment.

The relay supports a switching voltage of up to 250V AC/DC and has a contact current rating of 125mA. Its compact form factor with dimensions 99 mm (length), 22.5 mm (width), and 114.5 mm (height) fits easily in DIN rail configurations, saving control panel space. Screw terminal connections allow for easy and fast installation with reliable electrical contact ensured by silver tin oxide contacts that resist corrosion.

This safety relay is IP67 rated for protection against dust and water ingress, making it suitable for harsh industrial environments. It includes an LED indicator for quick visual diagnostics of device status and a suppressor diode to protect against surge voltages, enhancing system reliability.

Certified to key safety standards including EN60947-5-5, ISO13849-1, EN60947-5-1, and ISO13850, and meeting IECEx and ATEX hazardous area certifications, this relay supports machinery safety up to PLe Category 4. The coil voltage operates at 24V AC/DC, accommodating versatile control applications. The relay is rated for operation between -20°C to 55°C, ensuring robust performance under various ambient conditions.

The mechanical endurance of up to 10 million cycles provides long service life and dependable operation. Applications include industrial manufacturing, assembly lines, and any environment requiring rapid response for safety events.

Designed for emergency-stop and safety door monitoring. Compact dimensions of 99 x 22.5 x 114.5 mm for space-saving installation. 24V AC/DC coil voltage for flexible integration. 3 safety contacts and 1 auxiliary contact for control and signaling.

IP67 rating for superior ingress protection in industrial environments. Compliant with international safety standards and approvals. Long mechanical service life ensures durability. LED status indicator for clear and fast diagnostics.

Suppressor diode provides transient voltage protection.

This Phoenix Contact Safety Relay is ideal for industrial, manufacturing, automation, and safety-focused electrical control applications, supporting compliance with safety integrity levels and enhancing operational safety. Explore more safety and relay products on EnvMart for complete industrial automation solutions.