ABB REC670*1.2-B30X00-P02 Motor Protection Relay | 670 Series Universal Motor Relay

Description

Product Introduction

The ABB REC670*1.2-B30X00-P02 is a specialized motor protection relay from ABB’s trusted 670 Series lineup. Designed for industrial environments, it actively monitors motor health, guarding against overloads, phase loss, and other electrical anomalies that can halt production. Field technicians rely on this unit for its precision and durability in critical applications.Honestly, finding a full-spec unit like this is becoming harder. It features a D1A communication setup and belongs to the robust 670 Series family. We’ve verified its firmware and configuration to ensure it meets the high standards expected in plant maintenance scenarios. For engineers managing aging infrastructure, this relay offers a direct replacement path without the need for system overhauls.

Key Technical Specifications

Application Scenarios & Pain Points

The 2 A.M. Emergency
Imagine the scenario: a critical cooling pump motor trips offline at 2 a.m. in a petrochemical plant. The night shift engineer is scrambling, and production is bleeding money by the minute. Without a reliable protection relay like the REC670, diagnosing the issue—whether it was a simple phase imbalance or a catastrophic ground fault—becomes a guessing game. This is where having the right spare on the shelf earns its weight in gold.Industrial Applications

• Petrochemical Processing: In refineries, motors drive pumps that handle volatile fluids. A sudden motor failure can lead to dangerous spills or fires. This relay’s fast fault detection prevents those scenarios.
• Power Generation: Auxiliary motors in power plants must run continuously. The REC670’s ability to communicate fault data via Modbus allows central control rooms to react instantly, minimizing grid instability.
• Water Treatment: With hundreds of motors moving sludge and water, maintenance teams in municipal plants need relays that won’t drift out of calibration. Its solid-state design reduces false trips compared to older thermal overloads.
• Mining & Materials Handling: In dusty, high-vibration environments, the relay’s sealed housing keeps the sensitive electronics safe, ensuring the conveyor belt motors keep turning.

Installation & Maintenance GuidePhase 1: Preparation (20 Minutes)

1. Safety First: Lock out and tag out (LOTO) the motor circuit. Verify zero energy state with a multimeter.
2. Document Settings: Before removing the old relay, photograph all DIP switch settings and note the firmware version displayed on the screen.
3. Gather Tools: You’ll need a screwdriver, label maker, and the ABB 670 Series manual for reference.

Phase 2: Removal & Swap (15 Minutes)

1. Label Wires: The terminal block has dozens of connections. Label each wire (e.g., “L1,” “Trip Coil,” “Comm A”)—do not rely on memory.
2. Unscrew & Extract: Remove the mounting screws and gently pull the old relay from the panel.
3. Insert New Unit: Slide the new REC670 into the existing panel cutout and secure it with screws.

Phase 3: Configuration & Testing (40 Minutes)

1. Match Settings: Using your photo as a guide, replicate the DIP switch positions on the new unit. This is critical for communication baud rates.
2. Restore Wiring: Reconnect all wires to their labeled terminals. Double-check the CT (Current Transformer) polarity.
3. Power Up & Verify: Restore power. The display should show “Ready.” Check the LED indicators for normal status (no flashing fault lights).
4. Functional Test: Perform a primary injection test if possible, or use a relay test set to verify trip times. Ensure the “D1A” communication port establishes a handshake with the PLC.