Chint RT28N-32X

Chint RT28N-32X is a fuse base suitable for low-voltage أنظمة توزيع الطاقة, mainly used for overload and short-circuit protection of circuits.

أنا. Product Positioning and Functions

1. Type and Application

It belongs to the RT28 series cylindrical cap fuse base and needs to be used in conjunction with RT28 series fuse links (على سبيل المثال, RT28-32) to form a complete protection unit. It is applicable to power distribution lines with an AC frequency of 45-62Hz, a rated voltage up to 500V, and a rated current up to 32A.

2. الوظائف الأساسية

– حماية الزائد: When the circuit current exceeds the rated value, the fuse link heats up and melts, cutting off the circuit.

– Short-Circuit Protection: It quickly breaks the circuit when a short-circuit fault occurs, preventing equipment damage or fire risks.

– إشارة الحالة: ال “X” in the model indicates that the base has a built-in fuse indicator light (red color), which automatically turns on when the fuse link melts, facilitating quick fault location.

الثاني. المعلمات التقنية الرئيسية

1. المعلمات الكهربائية

– الجهد المقنن: 500VAC (compatible with common voltage levels such as 220V).

– التصنيف الحالي: 32أ (the maximum current of the fuse link that the base can be adapted to).

– كسر القدرة: 20ال (capable of safely breaking short-circuit current).

– Certification Standards: Complies with GB 13539 واللجنة الانتخابية المستقلة 60269 المعايير, and has passed the CCC certification.

2. Physical Characteristics

– Pole Configuration Options: Supports three configurations of 1P, 2ص, and 3P to meet different circuit requirements.

– Fuse Link Size: Suitable for cylindrical fuse links of 10×38mm (على سبيل المثال, RT28-32 series).

– طريقة التثبيت: 35mm DIN rail installation, which is simple and firm.

– Overall Dimensions: Taking 3P as an example, the width is approximately 79mm, the height is 81mm, and the depth is 61mm.

ثالثا. سيناريوهات التطبيق النموذجية

1. التحكم الصناعي

It is used for power protection of motor control circuits and automated equipment, such as the front-end protection of PLCs (Programmable Logic Controllers) and frequency converters.

2. Building Power Distribution

It is suitable for branch circuit protection of lighting systems and small distribution boxes, especially in scenarios with high space requirements.

3. Secondary Circuits

It serves as a protection component for control circuits (على سبيل المثال, 24V, 220V signal circuits) to prevent system paralysis caused by short circuits.

رابعا. احتياطات الاستخدام

1. الظروف البيئية

– درجة حرارة التشغيل: -5℃ to +40℃, with the 24-hour average temperature not exceeding 35℃.

– حد الارتفاع: ≤2000m; if the altitude exceeds this limit, derating is required (على سبيل المثال, the current correction factor is 0.8 at 3000m).

– Avoid installation in humid, flammable environments or environments with corrosive gases.

2. التركيب والصيانة

– When replacing the fuse link, the power must be cut off and insulating gloves should be worn to avoid electric shock risks.

– The indicator light needs to be powered by the load circuit to work normally; ensure the integrity of the circuit during installation.

– Regularly check whether the base contacts are oxidized to ensure good contact.

3. توصيات الاختيار

– Select the fuse link according to the load type: Type gG is suitable for general circuits, and Type aM is suitable for motor protection.

– If used in capacitor cabinets, it is recommended to switch to the RT36 series to meet higher breaking requirements.

V. Comparison with Similar Products

السادس. ملخص

With its compact design, reliable protection, and visual fault indication, Chint RT28N-32X has become a preferred solution for medium and low-power circuit protection. Its standardized rail installation and compatibility allow it to be widely used in industries, construction, and other fields. In practical use, it is necessary to select the product reasonably based on load characteristics and environmental conditions, and follow safety specifications to ensure stable operation of the system.