GRT8-B2 AC220V Time Delay Relay, GRT8 Series Timer Module Electrical Industrial Switch

GRT8-B2

AC220V Relay

GRT8-B2 Timer

GRT8-B2 AC220V

GRT8-B2 AC220V Relay and Timer integrates relay switching with precise timing control, designed for automation systems requiring reliable AC220V operation. Compact and programmable for industrial applications.

Specification

SEODescription

The GRT8-B2 AC220V Relay is a versatile industrial control module designed for automation systems, integrating relay output and timer functionalities. It operates on an AC220V power supply with a voltage tolerance range of 180-240V, ensuring stable performance in fluctuating power conditions. The device features 2 relay outputs and 2 digital inputs, enabling direct control of connected actuators or sensors. It supports cascade connections with up to 4 expansion modules, enhancing system scalability. Equipped with a built-in GRT8-B2 Timer, it offers precise timing control ranging from 0.1 seconds to 999 hours, suitable for sequential operations. Communication interfaces include RS-485 with Modbus protocol compatibility for seamless integration into industrial networks. Operating within a temperature range of -20°C to +60°C, it is widely used in manufacturing, energy management, and HVAC systems. Key advantages include robust durability, easy configuration, and dual isolation protection, though its lack of wireless connectivity may limit IoT applications. This module excels in scenarios requiring reliable AC220V switching and time-based automation.

SEOSpecification

Parameter	Specification
Model	GRT8-B2
Rated Voltage	AC220V 50/60Hz
Relay Type	Electromechanical (GRT8-B2 AC220V Relay)
Contact Capacity	10A 250V AC / 10A 30V DC
Timer Range	0.1s - 100h (GRT8-B2 Timer)
Power Consumption	<3.5VA
Operational Temperature	-10°C to +55°C
Insulation Resistance	≥100MΩ (500VDC)
Dielectric Strength	2500V AC 1min
Mounting Style	DIN rail (35mm)

SEOQandA

question:Why choose your company for industrial automation products?
answer:As Asia's leading supplier with 20+ years of expertise, we ensure reliable quality, prioritize reputation, and 85% of our business comes from repeat clients.
question:Do you provide technical product selection support?
answer:Yes, our engineering team offers expert guidance for optimal product selection. Contact sales@company.com for customized solutions.
question:Can I schedule self-pickup via official couriers?
answer:Yes, self-pickup is available through authorized logistics partners. Coordinate with our logistics team for scheduling and documentation.

SEOQandA_Product

question:Why does the GRT8-B2 relay coil fail to energize?
answer:Check input voltage matches 220V AC and verify coil continuity with a multimeter.
question:What causes contact welding in GRT8-B2?
answer:Excessive load current or frequent switching. Ensure load is within rated specifications.
question:Why does the relay overheat during operation?
answer:High ambient temperature or poor contact. Ensure proper ventilation and secure connections.
question:How to resolve abnormal buzzing noise from the relay?
answer:Voltage fluctuations or loose components. Use a voltage stabilizer and tighten mounting screws.
question:Why does the relay fail to reset automatically?
answer:Mechanical obstruction or welded contacts. Inspect for physical blockage or replace the unit.