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Energy Metering Relays
-- Steady & Reliable Manufacturer --
Introduction
Energy metering relays are designed for use in smart meters, power monitoring devices, and energy management systems. These relays provide reliable switching for metering applications while maintaining very low power consumption to meet the stringent requirements of utility metering equipment. Huajin Technology offers energy metering relays with magnetic latching technology, enabling zero standby power consumption and long service life for residential and commercial metering applications.
Specifications
| Parameter | Specification |
|---|---|
| Contact Current Rating | 5A – 40A |
| Coil Voltage Options | 3V, 5V, 12V, 24V DC |
| Contact Form | 1A, 1C, 2A |
| Initial Contact Resistance | ≤ 30 mΩ |
| Standby Power Consumption | 0 W (magnetic latching) |
| Electrical Life | ≥ 10,000 operations |
| Mechanical Life | ≥ 100,000 operations |
| Dielectric Strength (Coil to Contact) | ≥ 4000 VAC / 1 minute |
| Operating Temperature | -25°C to +70°C |
| Safety Approvals | CCC, State Grid, CE |
Applications
- Smart electricity meters
- Power monitoring devices
- Energy management systems
- Sub-metering equipment
- Utility data collection devices
Advantages
- Zero standby power consumption
- Low coil drive energy requirements
- Compact design for meter applications
- Long service life for utility equipment
- Reliable switching under low-power conditions
Frequently Asked Questions
Why is zero standby power important for energy metering relays?
Energy meters are required to measure power consumption accurately, and the relay itself should not contribute to energy losses. Magnetic latching relays maintain their contact state without continuous coil energization, eliminating standby power consumption and ensuring that the meter's own power consumption remains extremely low.
What is the typical coil drive energy for metering relays?
Our energy metering relays require only a short pulse of approximately 50ms duration to switch states. The coil drive energy is typically in the range of 0.05J to 0.15J depending on the coil voltage, which is well suited for battery-backed and low-power metering applications.
Are these relays suitable for utility meter applications?
Yes. Our energy metering relays are designed specifically for utility meter applications and have obtained State Grid certification. They meet the stringent requirements for reliability, long life, and low power consumption required by utility companies for residential and commercial metering equipment.
What is the expected service life of energy metering relays?
Our energy metering relays have a mechanical life of 100,000 operations and electrical life of 10,000 operations under rated load conditions. In typical metering applications where switching occurs only during meter commissioning or maintenance, the service life can extend to the full operational lifetime of the meter.
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Established in May 2021
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Annual exports account for about 30%
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The company occupies an area of 8,000 square meters.
Huajin Technology Jiaxing Co., Ltd. was established in May 2021 and is located at 707 Yanyu Road, Yucheng Town, Haiyan County, Jiaxing City, Zhejiang Province. It is a high-tech enterprise specializing in the research and development, production, and sales of relays.The registered capital of the company is 10 million yuan, covering an area of 8000 square meters, with more than 120 employees. The annual production capacity of magnetic latching relays is over 10 million, of which exports account for about 30%. The company has obtained ISO9001-2015 quality management system certification, and its relays have passed CCC certification, State Grid certification, TUV certification, etc. It also holds multiple technical patents. Our main products include motor relays, single-phase, two-phase, and three-phase magnetic latching relays, which have a wide variety of types and can meet various customized solutions for customers.
