REJ601 BD446NN1XG High Reliability Industrial Relay

Description

REJ601 BD446NN1XG Product Description:
REJ601 BD446NN1XG is a highly reliable industrial relay designed for circuit protection, control, and monitoring in demanding applications. As part of ABB’s trusted REJ series, it combines mechanical durability with intelligent functionality and is a key component in motor control centers (MCCs), switchgear, and automation panels.

REJ601 BD446NN1XG

This relay serves as a fail safe mechanism that interrupts the flow of current when a fault is detected, while providing real-time status feedback to the control system. It seamlessly integrates with PLC and SCADA networks through standard interfaces, achieving centralized monitoring and remote control. For engineers, its plug and play design reduces installation time, while configurable trip settings (such as overcurrent and undervoltage) allow customization according to specific load requirements. REJ601 BD446NN1XG is not only a component, but also the cornerstone for building resilient and efficient electrical systems.

REJ601 BD446NN1XG

Main features and advantages:
Durable hardware design: Featuring a compact and flame-retardant casing (IP20 protection level),REJ601 BD446NN1XG is resistant to dust, moisture, and mechanical impact, ensuring a long service life in harsh environments. Its modular design facilitates replacement in small spaces.
Accurate fault detection: Equipped with advanced current and voltage sensing functions, this relay can identify faults (such as phase imbalance and ground faults) within milliseconds, thereby reducing downtime and equipment damage. The adjustable time current curve allows engineers to customize the response based on specific loads.
High load cycle performance: With a rated operating frequency of up to 10000 times, it can handle continuous switching in high cycle applications such as packaging machinery or conveyor systems, reducing maintenance frequency.
Flexible connectivity: Supports analog (4-20 mA) and digital (Modbus RTU) outputs, enabling integration with legacy and modern control systems. LED indicator lights provide clear status updates for quick diagnosis.
Energy saving and efficient: Low power consumption (≤ 5 W) reduces operating costs, while its design complies with RoHS and CE standards, ensuring sustainability and global compatibility.

REJ601 BD446NN1XG

Technical specifications:
Model REJ601 BD446NN1XG
Brand ABB
Type: Industrial protection relay
Rated voltage 24-240 V AC/DC
Rated current 10 A (continuous), 50 A (peak)
Trip characteristics: overcurrent, undervoltage, phase loss, short circuit
Contact type SPST (single pole single throw), normally open
Communication Modbus RTU (RS-485), analog output
Working temperature -25 ° C to+60 ° C
Installation method: DIN rail (35 mm) or panel installation
Size 90 x 45 x 120 mm (width x height x depth)
Weight 0.3 kg
Certification CE, RoHS, IEC 60947-4-1
Environmental protection level IP20 (indoor use), IK07 (impact resistance)

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REJ601 BD446NN1XG

Application areas:
Accurate control of electrical circuits is crucial in industrial machinery and automation systems. The REJ601 BD446NN1XG relay performs excellently in environments that require reliable switching and prevention of faults such as overload, short circuit, and voltage fluctuations. For example, in manufacturing plants, this relay ensures the smooth operation of equipment such as conveyors, pumps, and motors by managing power distribution and quickly isolating faults. In food and beverage production lines, this relay is equally indispensable – its sturdy design can withstand cleaning and frequent start stop, while maintaining signal integrity, ensuring hygiene and normal operating time.

In renewable energy facilities such as solar power plants or wind turbines, the REJ601 BD446NN1XG relay plays a critical role in managing the flow of electricity between inverters, batteries, and the grid. It can handle high currents and withstand harsh outdoor conditions such as extreme temperatures and humidity, making it an ideal choice for protecting sensitive equipment in remote areas. In addition, in commercial buildings, this relay provides support for HVAC systems, elevators, and lighting equipment by ensuring continuous power supply and preventing costly shutdowns.

REJ601 BD446NN1XG

Related products:
REJ602 BD447NN2XG: Higher current rating (16 A), dual channel capability, suitable for parallel loads.
REJ601-NEXT BD446NN1XG-EXT: Extended temperature variant (-40 ° C to+85 ° C), suitable for outdoor or industrial oven applications.
REJ501 BD336NN1XG: Economy version with basic overcurrent protection, suitable for small systems.
REJ601-MOD BD446NN1XG-MOD: Modular design, equipped with replaceable contact blocks for easy maintenance.
REJ601-24V BD446NN1XG-24V: Low voltage variant optimized for 24V DC control systems in robots or automation.
REJ601-FL BD446NN1XG-FL: Embedded version, suitable for panel integration in space constrained environments.

REJ601 BD446NN1XG

Installation and maintenance:
Before installation:
Verify whether the voltage and current ratings match the application. If voltage spikes are common, please use surge protectors.
Ensure proper grounding to minimize electromagnetic interference (EMI), especially near the motor or driver.
Leave at least 25mm gap around the relay for heat dissipation.
maintain:
Check the contacts quarterly for wear or arc damage. If visible pits or oxidation, please replace.
Every year, use calibration tools to test the trip function to ensure accuracy. Reset settings after adjustment.
Clean the casing with a dry cloth to prevent dust accumulation from affecting heat dissipation.
Update firmware through Modbus interface to access new features or fix errors (please visit ABB support portal for updates).

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