Pilz S1PN 400-500VAC Safety Relay 2C/O Phase Sequence Monitor 400-500V AC

The Pilz S1PN 400–500VAC is a small safety relay that monitors phase sequence and voltage to keep three-phase equipment safe by watching for phase failure, phase sequence, and asymmetry on 400–500 V AC power sources. It contains two changeover contacts (2C/O) that make switching dependable, which makes it perfect for motors, pumps, compressors, and other important industrial loads where safe and precise phase rotation is important.

Product Details:

• Model: Pilz S1PN 400–500VAC safety relay / phase sequence monitoring relay, and the part number is 890210.
• Function: Keeps an eye on the phase sequence, finds phase loss and phase asymmetry in three-phase systems, and changes outputs when values go out of range.
• Supply and measuring voltage: 3-phase 400–500 V AC; the measuring voltage is the same as the supply voltage, which makes it easy to connect to conventional industrial grids.
• Outputs: 2 changeover (2C/O) relay connections for signaling, interlocking, or directly operating contactors and safety circuits.
• Common use: To keep motors, drives, hoists, conveyors, and other equipment safe against phase failure and wrong phase rotation.

Technical Specifications:

Pilz S1PN Key Features:

-> Phase sequence monitoring makes ensuring that three-phase motors turn in the right direction. If they don’t, they can turn in the wrong direction, which can break pumps, compressors, and other mechanical equipment.

-> Detecting phase failure and asymmetry to find line faults, weak connections, or blown fuses in the power supply early.

-> It works with a wide range of AC voltages, from 400 to 500 V, which is good for most industrial networks throughout the world (400 V and 480/500 V systems).

-> Two volt-free changeover connections make it easy to wire safety chains, PLC inputs, alarms, or motor contactor circuits in any way you want.

-> DIN-rail mountable enclosure with front-facing LEDs for easy visual status and problem detection in control panels.

-> Pilz safety design that is high-quality and will last a long time and work reliably in tough industrial settings.

Usage:

1. Motor protection in pumps, fans, compressors, and conveyors where a wrong phase sequence might break things.
2. Keeping an eye on the incoming three-phase power supply in control panels for cranes, hoists, elevators, and handling systems.
3. Protection of critical industrial equipment and automation systems in maritime, manufacturing, and process sector sites.