Current Monitoring Relay GRI8-05A 05B
Key attributes
| Brand | Switchgear parts |
| Model NO. | Current Monitoring Relay GRI8-05A 05B |
| Rated frequency | 50/60Hz |
| Series | GRI8 |
Product descriptions from the supplier
The GRI8-05 series is a high-performance current monitoring relay that uses isolated current mutual inductance technology. Its working power supply is compatible with AC/DC 24~240V wide voltage. Real time display of operating status through LED, combined with 35mm standard card rail installation method, can be quickly integrated into various distribution systems to achieve accurate judgment and rapid response to current anomalies.
This series of relays is suitable for the following key areas:
1. Abnormal monitoring of equipment current
Real time detection of overcurrent/undercurrent faults in motors, transformers, frequency converters, and other equipment to prevent winding overheating or no-load losses.
2. Security protection of power distribution system
Provide current over limit protection for distribution cabinets and branch circuits to avoid safety hazards caused by line overload.
3. Energy Management System
Integrated into the energy consumption monitoring network to achieve load operation status analysis and abnormal working condition warning.
4. Automated production line protection
Ensure the stable operation of key equipment on the production line within the set current range and reduce the risk of unexpected shutdowns.
5. Extended monitoring scheme
By connecting an external transformer, high current systems (such as generator sets, bus ducts, etc.) can be monitored
Technical parameters
| Technical parameters | GRI8-05A | GRI8-05B |
| Function | AC measurement | AC/DC measurement |
| Supply terminals | A1-A2 | |
| Rated supply voltage | AC/DC 24V-240V | |
| Rated supply frequency | 50/60Hz,0 | |
| Burden | max 1.5VA | |
| Supply voltage tolerance | -15%;+10% | |
| Current range | 2A-20A | |
| Current frequency | AC 50Hz | AC 50Hz, DC |
| Current adjustment | potentiometer | |
| Time delay | ≤0.1s | |
| Supply indication | green LED | |
| Setting accuracy | 0.1 | |
| Hysteresis | 0.05 | |
| Output | 1×SPDT | |
| Current rating | 10A(AC1) | |
| Switching voltage | 250VAC/24VDC | |
| Min. breaking capacity DC | 500mW | |
| Output indication | red LED | |
| Mechanical life | 1×107 | |
| Electrical life(AC1) | 1×105 | |
| Operating temperature | -20℃ to+55℃（-4℉to131℉） | |
| Storage temperature | -35℃ to+75℃（-22℉to158℉） | |
| Mounting/DIN rail | Din rail EN/IEC 60715 | |
| Protection degree | IP40 for front panel/IP20 terminals | |
| Operating position | any | |
| Overvoltage category | III | |
| Pollution degree | 2 | |
| Max.cable size(mm²) | 1×2.5mm²or2x1.5mm² 0.8N·m | |
| Dimensions | 90mmx18mmx64mm | |
| Weight | 73g | 75g |
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 1000m²
Total staff:
Highest Annual Export(usD): 300000000
Services
Business Type: Sales
Main Categories: Low Voltage Electrical Apparatus/Instrument meters/Production equipment/Electrical fittings/Equipment Parts
Whole life care manager
Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation,
ensuring compliance, professionalism, and reliability from the source.
Related Products
-
Digital Timer Switch TS-GE2 Programmable Periodic Timer
-
Digital Timer Switch THC 822 16A Weekly Programmable
-
Digital Timer Switch THC 109-16A Light Dependent Relay ＆accessories
-
Digital Timer Switch THC 109B-16A Light Dependent Relay ＆accessories
-
Digital Timer Switch THC 15A Programmable Periodic Timer
-
Digital Timer Switch THC 20-1C Weekly Programmable
-
Digital Timer Switch THC 20A-2C Astronomical Timer
Related Knowledges
-
How to Design 10kV Overhead Line PolesThis article combines practical examples to refine the selection logic for 10kV steel tubular poles, discussing clear general rules, design procedures, and specific requirements for use in 10kV overhead line design and construction.Special conditions (such as long spans or heavy ice zones) require additional specialized verifications based on this foundation to ensure safe and reliable tower operation.General Rules for Overhead Transmission Line Tower SelectionThe rational selection of overheadJames10/20/2025 -
10kV RMU Common Faults & Solutions GuideApplication Issues and Handling Measures for 10kV Ring Main Units (RMUs)The 10kV ring main unit (RMU) is a common electrical distribution device in urban power distribution networks, primarily used for medium-voltage power supply and distribution. During actual operation, various issues may arise. Below are common problems and corresponding corrective measures.I. Electrical Faults Internal Short Circuit or Poor WiringA short circuit or loose connection inside the RMU can lead to abnormal operatiEcho10/20/2025 -
High-Voltage Circuit Breaker Types & Fault GuideHigh-Voltage Circuit Breakers: Classification and Fault DiagnosisHigh-voltage circuit breakers are critical protective devices in power systems. They rapidly interrupt current when a fault occurs, preventing damage to equipment from overloads or short circuits. However, due to long-term operation and other factors, circuit breakers may develop faults that require timely diagnosis and troubleshooting.I. Classification of High-Voltage Circuit Breakers1. By Installation Location: Indoor-type: InstaFelix Spark10/20/2025 -
3D Wound-Core Transformer: Future of Power DistributionTechnical Requirements and Development Trends for Distribution Transformers Low losses, especially low no-load losses; highlighting energy-saving performance. Low noise, particularly during no-load operation, to meet environmental protection standards. Fully sealed designto prevent transformer oil from contacting external air, enabling maintenance-free operation. Integrated protection devices within the tank, achieving miniaturization; reducing transformer size for easier on-site installation. CEcho10/20/2025 -
10 Prohibitions for Transformer Installation and Operation!10 Prohibitions for Transformer Installation and Operation! Never install the transformer too far away—avoid placing it in remote mountains or wilderness. Excessive distance not only wastes cables and increases line losses, but also makes management and maintenance difficult. Never choose transformer capacity arbitrarily. Selecting the right capacity is essential. If the capacity is too small, the transformer may be overloaded and easily damaged—overloading beyond 30% should not exceed two hoursJames10/20/2025 -
How to Maintain Dry-Type Transformers Safely？Maintenance Procedures for Dry-Type Transformers Put the standby transformer into operation, open the low-voltage side circuit breaker of the transformer to be maintained, remove the control power fuse, and hang a "DO NOT CLOSE" sign on the switch handle. Open the high-voltage side circuit breaker of the transformer under maintenance, close the grounding switch, fully discharge the transformer, lock the high-voltage cabinet, and hang a "DO NOT CLOSE" sign on the switch handle. For dry-type transFelix Spark10/20/2025
Haven't found the right supplier yet? Let matching verified suppliers find you.
Get Quotation Now
Send inquiry
Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.
