PMA50A415 - PUMP PROTECTION RELAY 380-415VAC

Why Choose the PMA50A415?

The Lovato PMA50A415 pump protection relay safeguards single and three-phase installations at 380...415VAC. It monitors maximum AC current and minimum cosφ, and detects phase loss or incorrect phase sequence. With one relay output and simple potentiometer programming, it supports 5 A or 16 A rated currents. Built on the PMA50 platform, it offers 6 kV impulse withstand and a long 30,000,000-cycle mechanical life.

Designed for reliability, the PMA50A415 conforms to IEC/EN 60255-5, 61000-6-2, 61000-6-3, UL 508 and CSA C22.2 n° 14. Operating from −20 to +60 °C with Uimp 6 kV and Ith 8 A, it suits demanding panels. Installation is straightforward with 0.8 Nm max terminal torque, and its 251 g build makes handling easy for panel builders and OEMs.

Key Benefits

• Protects single- and three-phase systems at 380...415VAC supply range.
• Monitors maximum AC current and minimum cosφ for reliable pump protection.
• Detects phase loss and incorrect phase sequence to prevent damage.
• Flexible 5 A or 16 A rated current options.
• Simple setup and adjustment using potentiometers.
• High 6 kV impulse withstand enhances electrical robustness.
• Long 30,000,000-cycle mechanical life for dependable operation.

Technical Specification

• Product type designation: PMA50
• Ith (IEC): 8 A
• Mechanical life: 30000000 cycles
• Terminal tightening torque (max): 0.8 Nm
• Rated impulse withstand voltage Uimp: 6 kV
• Operating temperature: -20 to +60 °C
• Storage temperature: -30 to +80 °C
• Weight: 251 g

What’s Included

• PMA50A415 pump protection relay
• Quick start and installation guide
• Manufacturer product datasheet

Applications

• Single- and three-phase pump protection with current and cosφ monitoring
• Pump systems requiring phase loss and sequence detection
• Control panels operating at 380...415VAC with a single relay output
• OEM pump skids needing straightforward potentiometer-based setup

Safety note: Install and commission only by qualified personnel. Isolate the supply before wiring, tighten terminals to a maximum of 0.8 Nm, and verify all settings against system requirements.