The rated voltage is 0.66kV, and it adopts a through type structural design. The iron core is made of high-quality Permalloy/silicon steel sheet, and the shell is made of flame-retardant ABS/epoxy casting material, which is precision machined and vacuum cast. The product is designed with the core concept of "easy installation, accurate measurement, reliable insulation, and compact size", fully meeting the needs of power metering, line protection, equipment monitoring, etc. It strictly complies with international and domestic standards such as IEC 61869-2, GB 1208, ANSI C57.13, and is compatible with the low-voltage power grid specifications of most countries around the world. It is the preferred current measurement equipment for substations, distribution stations, industrial plants, new energy projects, and other fields.
Product Parameter
|
Parameter Name |
Technical Specifications |
|
Rated Voltage |
0.66kV (Um=1kV) |
|
Rated Primary Current |
50A/100A/200A/300A/300A/630A (customizable) |
|
Rated Secondary Current |
5A/1A (standard configuration, customizable) |
|
Accuracy Class |
Measurement level: 0.2S/0.5S; Protection level: 5P10/5P20 (customizable in combination) |
|
Rated Burden |
5VA/10VA/15VA (secondary side) |
|
Core Material |
Permalloy/High grade Silicon Steel |
|
Housing Material |
Flame retardant ABS/Epoxy Resin Casting |
|
Through core diameter |
20mm/30mm/40mm/50mm/60mm (customizable) |
|
Insulation Level |
3kV/50Hz/1min withstand voltage without breakdown |
|
Rated Operating Temperature |
-40℃ ~ 70℃ |
|
Protection Class |
IP54 (epoxy casting type can reach IP65) |
|
Electromagnetic Compatibility (EMC) |
Compliant with IEC 61000-4 standard, strong anti electromagnetic interference capability |
|
Installation method (Mounting Type) |
Rail installation/bolt fixation/wall mounted installation (optional) |
Product feature and application
Adopting an integrated through core design, there is no need to disconnect the primary conductor, and the cable/busbar can be directly installed by passing it through the iron core, greatly saving construction time; Suitable for multiple installation methods, it can be flexibly installed on rails, cabinets or walls, and can adapt to different power distribution scenarios.
-Accurate measurement with minimal error:
High quality PoMo alloy/silicon steel core is selected, with high magnetic permeability and low loss. Combined with precision winding technology, the measurement accuracy reaches 0.2S level, with an error of ≤ 0.2%. It can accurately collect current data and meet high-precision measurement and monitoring needs.
The epoxy cast shell has excellent insulation performance, aging resistance and impact resistance, with an insulation level of up to 3kV withstand voltage standard, which can effectively resist voltage breakdown; The flame-retardant ABS shell is waterproof and dustproof, with a protection level of IP54, suitable for complex power distribution environments.
With a compact structural design, it is small in size and lightweight, allowing for flexible installation in narrow cabinet spaces; Support multiple specifications of through-hole diameter and customized rated current, suitable for different cross-sectional conductors and distribution capacity requirements.
Optimized electromagnetic shielding structure, strong anti-interference ability, can work stably in strong electromagnetic environments; Wide temperature range design (-40 ℃~70 ℃), excellent weather resistance, suitable for harsh working conditions such as high and low temperatures, humidity, etc.
It can be used in various scenarios.
-In the field of architecture, indoor power supply lines (such as lighting, sockets, air conditioning, elevators, etc.) for residential buildings, commercial complexes, office buildings, hotels, apartments, etc. are suitable for conduit and bridge laying.
-In the industrial field, low-voltage power lines and equipment connection lines in factory workshops, industrial parks, and manufacturing bases can withstand mechanical friction and dust environments in the workshop, and are suitable for industries such as mechanical processing, textiles, electronics, and chemical engineering.
-Municipal and public facilities: Low voltage distribution systems for road lighting, parks and scenic spots, airport terminals, railway stations, hospitals, schools and other public areas, especially suitable for indoor and semi outdoor scenes.
-Civil and commercial supporting facilities: power supply lines for shopping malls, supermarkets, convenience stores, office building supporting facilities, as well as power distribution projects for livelihood projects such as urban village renovation and resettlement housing construction.
-In the agricultural field, low-voltage power supply lines for breeding bases, agricultural product processing plants, and agricultural greenhouses can withstand mild humidity and dust environments.
-Overseas projects: For overseas residential construction, infrastructure renovation, industrial park expansion and other projects, the sheath, length and flame retardant rating can be customized according to local standards to meet high cost-effective demand scenarios.
Production details
1. High quality Core Structure
Selecting high permeability Permalloy or high-quality silicon steel sheet iron core, processed by precision lamination and vacuum annealing process, with minimal hysteresis loss and eddy current loss, ensuring stable measurement accuracy; The iron core adopts a fully enclosed structure, effectively shielding external electromagnetic interference and enhancing anti-interference ability.
2. Through core design
Integrated through type structure, without a single winding lead out, the conductor can directly pass through the iron core, and there is no need to cut off cables or busbars during installation, making construction efficient and convenient; Precision machining of the through-hole, smooth inner wall, can avoid scratching the insulation layer of the conductor, and is suitable for different cross-sectional conductors to pass through.
3. High strength housing
The epoxy casting shell is made of high-quality epoxy resin through vacuum casting technology, with excellent insulation performance, high mechanical strength, strong aging resistance, and can withstand impact, vibration, and chemical corrosion; The flame-retardant ABS shell is made of environmentally friendly flame-retardant materials, which are waterproof and dustproof, lightweight, suitable for indoor power distribution scenarios, and comply with RoHS environmental standards.
4. Precise Wiring Terminal
The secondary side adopts copper terminal blocks, which have good conductivity, low contact resistance, firm connection, and can effectively prevent heating phenomenon; The terminal identification is clear, marked with "P1/P2" and "S1/S2", which facilitates construction wiring and avoids measurement errors caused by reverse connection, in compliance with international wiring standards.
5. Flexible Mounting Structure
Supports three installation methods: rail installation, bolt fixation, and wall mounted installation, suitable for different distribution cabinets and installation scenarios; The installation bracket is made of high-quality steel, which is corrosion-resistant and rust proof, with strong load-bearing capacity, ensuring long-term stable fixation of the equipment and avoiding vibration affecting measurement accuracy.
Product Certification
Sunrise adheres to the bottom line of quality, and the SR-PVC-LV series PVC insulated low-voltage cables have passed multiple international authoritative certifications, ensuring that the products meet global market access standards and providing customers with solid quality assurance
FAQ
Q: Does the through type CT comply with our country's power grid standards?
A: Yes. This product strictly complies with the IEC 61869-2 international standard, and can also adapt to regional standards such as ANSI C57.13 (USA), BS EN 61869 (UK), VDE 0414 (Germany), etc. It supports customization of accuracy level, through-hole diameter, installation method, and identification requirements according to the specifications of the customer's country/region. We have provided adaptable CT products for distribution projects in over 70 countries worldwide and have extensive experience in adapting to overseas markets.
Q: What is the warranty period for the product? What services are provided within the warranty scope?
A: We promise a product warranty period of 5 years (calculated from the date of acceptance). During the warranty period, if the measurement accuracy deviation or insulation failure is caused by the quality of the product itself (iron core, shell, winding process), we will provide free replacement services; At the same time, we provide 24/7 technical support, remote guidance for installation, wiring, and troubleshooting. Overseas projects can enjoy on-site technical services from engineers.
Q: How to choose the appropriate through-hole diameter and rated current?
A: The selection criteria are as follows: ① Rated current: Select based on the maximum working current of the distribution system, and it is recommended to reserve a margin of 20% to 30% (if the maximum working current is 300A, 400A rated current CT can be selected); ② Through hole diameter: Select according to the outer diameter of the primary conductor (cable/busbar) to ensure that the conductor can pass smoothly, and the hole diameter is 2-5mm larger than the outer diameter of the conductor (such as a cable outer diameter of 35mm, a 40mm through hole diameter can be selected). We can provide free selection solutions based on the conductor specifications and working current you provide.
Q: What should be noted during installation? Can the secondary side be opened?
A: Installation precautions: ① Install in the direction marked "P1 → P2" to ensure correct current flow and avoid measurement errors; ② When the conductor passes through the iron core, it should be placed in the center without touching the inner wall of the iron core; ③ Install firmly and avoid vibration. Important reminder: Open circuit is absolutely prohibited on the secondary side! Open circuit on the secondary side can generate high voltage, which may damage equipment and endanger personal safety. During normal operation, it is necessary to ensure reliable connection between the secondary side and the instrument/protective device.
Packing & Shipping
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