Selec PPRD-4M-3-415V 3Ø Digital Pump Protection Relay

Product Summary:

The Selec PPRD-4M-3-415V is a robust 3-phase digital pump protection relay designed to safeguard pumps from faults like phase loss, unbalance, overloads, dry runs, and voltage irregularities. Suitable for heavy-duty industrial applications with remote/auto test and reset functions.

Key Features:

• Monitors overload, underload, over/under current, and voltage.

• Detects phase sequence, failure, and current asymmetry.

• MPCT range: 10A to 80A

• Operating voltage range: 280V–500V AC (L–L)

• 1 C/O SPDT relay output

• LED indications for power and trip

• Adjustable trip time delay and auto-restart

Applications:

• Agricultural irrigation pump systems

• Industrial water pump stations

• Sewage and wastewater treatment plants

• HVAC pump units

• Fire pump control systems

Product Benefits:

• Enhances pump lifespan through intelligent protection

• Reduces downtime with auto-restart and reset

• Prevents motor burnout via early fault detection

• Quick installation via DIN rail mounting

• Easy monitoring with LED indications

FAQs:

Q1. What is the maximum voltage range this relay can operate with?
A1. The Selec PPRD-4M-3-415V supports a voltage range from 280V to 500V AC (line-to-line).

Q2. Can this relay detect dry run conditions in pumps?
A2. Yes, it monitors undercurrent conditions which help in identifying dry run scenarios.

Q3. Is the auto-reset feature configurable?
A3. The auto-reset time is fixed at 15 minutes for current and voltage parameters.