IP65 Outdoor Resin-Cast Current Transformer – LMZW Series
The LMZW series is an outdoor resin-cast current transformer designed for low-voltage distribution systems up to 0.66kV. It combines hydrophobic epoxy resin insulation with IP65 weatherproofing, making it suitable for harsh environments such as ring main units (RMU), marine installations, and chemical plants. Available with accuracy classes up to 0.2S and measurement range up to 1000A, it meets the stringent requirements of IEC 61869-2 and CE directives.
Key Selling Points
IP65 Weatherproofing – With an IP65 rating, the transformer is protected against dust and water jets, ensuring reliable performance in outdoor and high-humidity environments.
UV Protection – The hydrophobic epoxy resin housing is UV-stabilized, preventing degradation from prolonged sun exposure and extending service life.
High Accuracy 0.2S – Achieve precise measurement for energy metering and protection applications, meeting IEC 61869-2 accuracy requirements and minimizing energy losses.
Wide Measurement Range – Measurement from 0 to 1000A with outputs of 5A, 1A, mA, or mV, flexible enough for various monitoring and protection needs.
IEC 61869-2 Certified – Type test report confirms full compliance to IEC 61869-1 and IEC 61869-2, ensuring international acceptance and safety.
Technical Specifications
Parameter
Value
Model
LMZW
Rated Voltage
0.66kV
Measurement Range
0–1000 A
Output
5 A / 1 A / mA / mV
Accuracy Class
1.0 / 0.5 / 0.5S / 0.2 / 0.2S
Inner Diameter
0–80 mm
Waterproof Rating
IP65
UV Protection
Yes
Standards
IEC 61869-1, IEC 61869-2
Models and Options
Available in LMZW-90 and LMZW base models, with customizable ratios and OEM logo printing. Inner diameter can be selected from 0 to 80 mm to fit different busbar sizes. Outputs can be configured as 5A, 1A, mV, or mA signals to match your metering or protection devices.
Materials and Structure
Constructed with hydrophobic epoxy resin for the housing, silicon steel sheets for the core, and pure copper enameled wire for windings. The robust resin-cast structure provides excellent insulation and moisture resistance, ensuring long-term stability in outdoor environments.
Applications
Ideal for current measurement, energy metering, and protection in outdoor low-voltage distribution systems. Common applications include ring main units (RMU), marine and offshore installations, chemical plants, metallurgy, and switchgear retrofit projects.
Case Study
With over 10 years of supply experience, our outdoor current transformers have been used in power distribution projects, switchgear retrofits, and commercial building energy monitoring across Thailand, Chile, Lebanon, South Korea, Australia, and other countries. They have contributed to improved accuracy, reduced installation difficulty, and enhanced system monitoring reliability.
FAQ
Q: What is the maximum current rating?
A: The transformer can measure currents up to 1000 A.
Q: What output signals are available?
A: Output options include 5 A, 1 A, mA, and mV, allowing compatibility with various meters and relays.
Q: Is the transformer suitable for outdoor use?
A: Yes, it has an IP65 rating and UV protection, making it suitable for outdoor installation.
Q: Can the ratio be customized?
A: Yes, we offer custom ratios and can print your OEM logo.
Q: What certifications does it have?
A: It is certified to IEC 61869-2 and carries CE-LVD (2014/35/EU) attestation.
Q: What is the working frequency?
A: It operates on 50/60 Hz power systems.
Q: Can it be used for protection applications?
A: Yes, with accuracy classes up to 0.2S, it is suitable for both metering and protection.
Inquiry Information
For pricing, MOQ (minimum 1 unit), delivery (FOB/CIF/EXW), and payment options (T/T, PayPal, Alibaba, etc.), please contact us at bethy@heyiele.com or WhatsApp +86 13968747975.
