
Selec PPRD-4M-1-230V 1Ø Digital Pump Protection Relay
1-phase digital pump protection relay for monitoring voltage, current, and motor conditions with a 30A direct output relay.
Product Summary:
Selec PPRD-4M-1-230V is a high-performance digital pump protection relay designed to safeguard 1Ø motors against phase loss, unbalance, overloads, voltage and current faults, with advanced auto/restart capabilities.
Key Features:
Monitors: Dry Run, Under/Over Current, Locked Current
Over/Under Voltage protection
Direct 30A output relay
Auto/Manual reset and remote test
LED indicators & 3-digit 7-segment LED display
Wide voltage range: 180–300V AC (L–N)
Motor rated current range: 1A to 30A
DIN rail mountable with compact design
Built-in timer and reset logic
Applications:
Single-phase pump protection
Irrigation systems
Industrial motor protection
HVAC systems
Water treatment plants
Product Benefits:
Ensures long motor life by preventing electrical faults
Minimizes downtime with auto-restart and intelligent reset logic
Easy monitoring via LED and display
Compact and easy DIN rail mounting
Supports high current load up to 30A
FAQs:
Q1: What types of faults does the Selec PPRD-4M detect?
A1: It detects phase loss, unbalance, sequence errors, over/under voltage and current, locked rotor, and dry run conditions.
Q2: Can this relay automatically restart the motor?
A2: Yes, it supports 3 auto-restart attempts after fault clearance.
Q3: Is it suitable for agricultural pumps?
A3: Absolutely. It’s ideal for protecting pumps in agriculture, irrigation, and similar single-phase applications.