Contactor,circuit breaker,solar inverter,electric meter,solar batteries
- Installation and Appearance Details
Installation Methods
It supports two mainstream installation forms. It can be fixedly installed via M5 screws, and also be adapted for installation on DIN rails of 35mm or 75mm specifications. It is suitable for different installation scenarios such as power distribution cabinets and control cabinets, with strong installation compatibility.
Appearance and Adaptive Installation
This model is suitable for forming the QJX2 series star-delta reduced-voltage starter. Similar to other models in the same series that are compatible with this starter, when installed on the same iron base plate of the starter, the corresponding installation dimension is 310mm × 185mm. No additional adjustment of installation space is required when used with the starter. Meanwhile, it adopts a compact structural design, which can save the internal layout space of the control cabinet.
- Adaptive Accessories and Combined Applications
Specialized Expansion Accessories
In addition to conventional auxiliary contact sets and air time-delay heads, it can also be matched with LA2-T, LA3-R series time-delay heads as well as LA1, LA8 auxiliary contact sets. These accessories enable it to better meet the needs of time-delay conversion and contact expansion of the star-delta reduced-voltage starter.
Classic Combination Solutions
When matched with thermal overload relays, in addition to the NR2 series, it can also be combined with the JR28 series thermal overload relays to form an electromagnetic starter. Three contactors of this model, together with air time-delay heads, can form the core components of a star-delta reduced-voltage starter. This setup can realize the reduced-voltage starting of the motor, reduce the current impact during starting, and protect the motor and circuit.
- Market Price and Quality Assurance
Price Range
The FOB price in the international market fluctuates greatly. For small-batch purchases (1-99 units), the unit price is approximately 9.2-11.3 US dollars; for bulk purchases of 500 units or more, the unit price can be as low as around 8.66 US dollars. The pricing of different suppliers will vary slightly depending on brand reputation and additional services.
Quality Assurance Period
Similar products in the industry generally provide an 18-month quality assurance period. As a mainstream industrial-grade contactor, this Chint model follows the industry standard for quality assurance policies. Under normal installation and use, if non-human-induced faults occur within the quality assurance period, repair or replacement services can be enjoyed.
- Material and Detailed Characteristics
The terminal blocks are made of pure copper. This material can effectively reduce resistance, minimize energy loss during power transmission, and improve energy utilization efficiency. At the same time, it can prevent terminal damage caused by excessive heat. The main contacts still use silver alloy material, which can enhance arc-extinguishing performance, reduce arc erosion on the contacts, and meet the needs of high-frequency operation.
The coil is equipped with a voltage transient suppression function. When there is an instantaneous voltage fluctuation in the circuit, it can protect itself from damage, thereby maintaining the stable switching action of the contactor. It is suitable for use in industrial power grid environments where voltage fluctuates occasionally
