---
product_id: 470555507
title: "Harmony Phase Control Relay, Slim Design 3-Phase Supply Monitor for Sequence, Failure, and Imbalance, 208–480VAC, 0.69\" Width with Tamper-Proof Cover for Pumps, Lifts, Packaging"
brand: "schneider electric"
price: "$551.84"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/470555507-harmony-phase-control-relay-slim-design-3-phase-supply-monitor
store_origin: US
region: United States of America
---

# 3-phase fault detection Ultra-slim 0.69" width Tamper-proof cover Harmony Phase Control Relay, Slim Design 3-Phase Supply Monitor for Sequence, Failure, and Imbalance, 208–480VAC, 0.69" Width with Tamper-Proof Cover for Pumps, Lifts, Packaging

**Brand:** schneider electric
**Price:** $551.84
**Availability:** ✅ In Stock

## Summary

> ⚙️ Slim, smart, and secure phase control—because your equipment deserves the best.

## Quick Answers

- **What is this?** Harmony Phase Control Relay, Slim Design 3-Phase Supply Monitor for Sequence, Failure, and Imbalance, 208–480VAC, 0.69" Width with Tamper-Proof Cover for Pumps, Lifts, Packaging by schneider electric
- **How much does it cost?** $551.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/470555507-harmony-phase-control-relay-slim-design-3-phase-supply-monitor)

## Best For

- schneider electric enthusiasts

## Why This Product

- Trusted schneider electric brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Saving Slim Design:** Fits in tight panel spaces with a width equal to a single-pole breaker, optimizing your control cabinet layout.
- • **Secure Tamper-Proof Cover:** Durable transparent shield deters unauthorized access while minimizing maintenance downtime.
- • **Precision Phase Protection:** Detects phase failure, sequence errors, and voltage imbalances to safeguard your critical systems.
- • **Self-Monitoring Reliability:** Automatically de-energizes output on abnormal power supply, ensuring rapid fault response and equipment safety.
- • **Versatile Industrial Applications:** Perfect for pumps, lifts, packaging lines, and more—where consistent phase control is mission-critical.

## Overview

The Schneider Electric Harmony Phase Control Relay is a compact, ultra-slim 3-phase supply monitor designed to detect phase failures, sequence errors, voltage imbalances, and undervoltage/overvoltage conditions in 208–480VAC systems. Featuring self-monitoring capabilities and a tamper-proof cover, it ensures reliable protection for sensitive industrial equipment in applications like pumps, lifts, and packaging, all while optimizing panel space and installation efficiency.

## Description

Schneider Electric Harmony Phase Control Relay, Slim Design 3-Phase Supply Monitor for Sequence, Failure, and Imbalance, 208–480VAC, 0.69" Width with Tamper-Proof Cover for Pumps, Lifts, Packaging

## Features

- PHASE MONITORING FOR SYSTEM SAFETY: The Harmony 3-Phase Supply Control Relay detects phase failure, sequence errors, undervoltage and overvoltage, and imbalance in 3-phase power systems to protect sensitive equipment from costly breakdowns and unsafe oper
- ULTRA-SLIM DESIGN: With the same width as a 1-pole circuit breaker, this compact relay streamlines panel layout and helps reduce installation time and material costs
- SELF-MONITORING FOR RELIABILITY: This electrical component monitors its own power supply and automatically de-energizes the output relay in abnormal conditions, ensuring fast response and equipment safety
- TAMPER PROTECTION: The durable transparent cover design deters unauthorized access while minimizing maintenance interruptions and protecting internal components
- VERSATILE APPLICATIONS: This relay is ideal for use in hoisting, elevators, packaging lines, textiles, water treatment, and pumping systems, anywhere consistent phase control is critical

## Product Details

- **Connector Type:** Plug-In
- **Contact Material:** Silver
- **Contact Type:** Normally Closed
- **Current Rating:** 8 Amps
- **Mounting Type:** Snap In Mount

## Images

![Harmony Phase Control Relay, Slim Design 3-Phase Supply Monitor for Sequence, Failure, and Imbalance, 208–480VAC, 0.69" Width with Tamper-Proof Cover for Pumps, Lifts, Packaging - Image 1](https://m.media-amazon.com/images/I/61wsCblnajL.jpg)

## Frequently Bought Together

- Schneider Electric Rm17te00,Multifunction Control Relay, 3 Phase, Rm17te00
- SCHNEIDER ELECTRIC LC1D12G7 CONTACTOR
- SCHNEIDER ELECTRIC - LRD10 - OVERLOAD RELAY

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-09*