3 Phase Monitor Relay DPDT 600VAC 0 Pin by MACROMATIC Model PMD575

Description

Product Overview

The MACROMATIC 3 Phase Monitor Relay DPDT (model PMD575) is a rugged, high‑performance device designed to safeguard three‑phase electrical systems across a wide range of industrial applications. Constructed from a durable polymer housing with reinforced metal contacts, the relay delivers consistent performance in harsh environments, resisting dust, moisture, and temperature extremes. It operates on an input voltage range of 480 to 600 VAC, with a pick‑up range of 460‑600 VAC, ensuring reliable detection even under fluctuating supply conditions. The zero‑pin (0 Pin) configuration simplifies wiring and reduces installation time, while the DPDT (double pole double throw) contacts provide flexible routing for both monitoring and control circuits. Key specifications include a rapid 100 ms phase‑loss and reversal detection time, adjustable trip delay settings from 0.30 to 30 seconds for phase unbalance, undervoltage, and overvoltage conditions, and a power‑up restart delay ranging from 1.00 to 300.0 seconds after fault clearance. These features combine to deliver precise, real‑time protection for motors, drives, and other critical three‑phase loads.

Usage

Designed for use in manufacturing plants, processing facilities, and large‑scale automation systems, this relay excels in environments where reliable phase monitoring is essential. It is ideal for protecting induction motors, variable frequency drives (VFDs), and programmable logic controllers (PLCs) from phase loss, phase reversal, and voltage anomalies that can cause costly downtime or equipment damage. The compact 0‑pin design allows easy integration into existing control panels, and the DPDT contacts enable seamless switching between normal operation and protective shutdown states. Whether installed in a motor control center, a power distribution board, or a dedicated monitoring cabinet, the relay’s adjustable delay settings let engineers fine‑tune response times to match specific process requirements, ensuring both safety and productivity. Its robust construction also makes it suitable for outdoor installations, such as in oil‑field pump stations or renewable energy converter arrays, where exposure to the elements is a constant concern.

Why Choose Us

Choosing the MACROMATIC 3 Phase Monitor Relay means selecting a product backed by decades of expertise in industrial electrical components. Each unit undergoes rigorous quality testing, including thermal cycling, vibration, and electrical endurance trials, to guarantee long‑term reliability. Our manufacturing facilities in the United States adhere to ISO‑9001 standards, providing traceability and consistency across every batch. In addition to the superior build quality, we offer comprehensive technical support, rapid replacement parts, and a clear warranty policy that covers defects in materials and workmanship. Customers benefit from detailed installation guides, wiring diagrams, and on‑site assistance when needed, ensuring a smooth deployment and minimal disruption to existing operations. By partnering with MACROMATIC, you gain access to a trusted brand recognized for delivering precise, dependable phase monitoring solutions that meet stringent industry standards.

Key Features

• Zero‑pin design reduces wiring complexity and speeds up installation.
• Fast 100 ms detection of phase loss or reversal protects equipment from sudden faults.
• Adjustable trip delays (0.30‑30 s) let you customize response times for different load sensitivities.
• Durable housing withstands harsh industrial conditions, extending service life.
• Dedicated technical support and warranty ensure confidence and quick issue resolution.

FAQ

What voltage range does the relay support?

The relay operates on an input voltage of 480 to 600 VAC, with a pick‑up range of 460‑600 VAC, making it suitable for most three‑phase industrial power systems.

Can the relay be used with variable frequency drives?

Yes, the DPDT contacts and fast phase‑loss detection make it an excellent choice for monitoring VFDs, helping prevent damage caused by voltage irregularities.

How do I adjust the trip delay settings?

Trip delays are set using the built‑in potentiometer on the relay. Turn the adjustment screw to select a delay between 0.30 and 30 seconds for phase unbalance, undervoltage, and overvoltage conditions.

What warranty does MACROMATIC provide?

All relays come with a one‑year limited warranty covering defects in materials and workmanship, along with access to our technical support team for troubleshooting and replacement assistance.

Is the relay suitable for outdoor installations?

Yes, its robust polymer housing and sealed contacts protect against dust, moisture, and temperature extremes, allowing reliable outdoor use in applications such as pump stations and renewable energy sites.