LOW VOLTAGE DISTRIBUTION BOX

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SP-JXF 3 Phase Motor Circuit Control Low Voltage Distribution Box

PRODUCT OVERVIE SP-JXF low-voltage distribution box is […]

PRODUCT OVERVIE

SP-JXF low-voltage distribution box is applicable to three-phase three-wire, three-phase four-wire and three-phase five-wire systems of 400V and below or with load current not more than 630A for control, leakage protection, motor overload, short circuit and phase shortage. The box is designed according to the actual configuration, with reasonable design, small size, attractive appearance, novel structure, high protection grade, safe and reliable use. It can be widely used in power plant, rail transit, aerospace, petrochemical engineering, metallurgy, textile, real estate, steel and other industries for control and protection.

COMPLIANCE WITH STANDARDS

● GB/T72S1.12-2013 Low-voltage Switchgear and Controlgear Assemblies – Part 2: Power Switchgear and Controlgear Assemblies
● IEC61439-1 Low-voltage Switchgear and Controlgear Assemblies – Part 1: General Rules
● GB 10233 Basic Testing Method for Low-voltage Switchgear and Controlgear Assemblies
● GB17625.1-2003 Electromagnetic Compatibility- Limits -Limits for Harmonic Current Emissions (Equipment Input Current Per Phase ≤ 16A)
● GB 16838-2005 Environmental Test Methods and Severities for Fire Electronic Products
● GB 4208 Degrees of Protection Provided by Enclosure (IP Code)
● GB50171-2002 Code for Construction and Acceptance of Switchboard Outfit Complete Cubicle and Secondary Circuit Electric Equipment Installation Engineering
● GB14287.1~3-2005 Alarm and Control System for Electric Fire Prevention

3 TECHNICAL CHARACTERISTICS AND ADVANTAGES

Best surface protection

3.1.1 German environment-friendly and high-voltage electrostatic spraying automatic equipment is adopted

3.1.2 The vitrified membrane is formed on the surface of the spraying workpiece, and the surface coating of the product is uniform and attractive in color;

3.1.3 The membrane thickness after one-time spraying is 60μm〜80μm, and the precision error of coating thickness is ±20μm;

3.1.4 The spraying adhesion meets the national-level 0 standard, which can meet the 168h salt spray test;

Reliable electrical connection scheme

3.2.1 The miniature circuit breaker is connected by the customized busbar, to meet the requirements of temperature rise and electrical clearance;

3.2.2 The whole system is connected by national standard cable conductor, which is reliable;

3.2.3 The copper bar is processed by digital numerical control equipment with high processing accuracy, which effectively prevents the unreliable contact caused by the installation stress of the copper bar;

3.2.4 The advanced cold pressing terminal equipment ensures the reliable connection between the conductor and the components;

7+5 comprehensive test standards

Design verification according to IEC61439-1

Structure inspectionPerformance inspection
1-Strength of materials and parts1-Dielectric property
2-Protection class of complete equipment2-Verification of temperature rise
3- Electrical clearance and creepage distance3-Short-circuit resistance strength
4 – Integrity of protection against electric shock and
protection circuit
4-Electromagnetic compatibility
5- Combination of switching devices and components5- Mechanical operation
6 -Internal circuit and connection 
7-External  terminal

4  Environmental Conditions for Use

4.1 The ambient air temperature shall not be higher than +40°C and not lower than – 25°C,and the average temperature within 24h shall not be higher than +35°C. Otherwise, the capacity shall be reduced according to the actual situation;

4.2 The altitude at the place of use shall not exceed 2,000m;

4.3 The relative ambient air humidity shall not exceed 50% when the maximum temperature is +40°C, and the high relative humidity is allowed at lower temperature (90% at +20°C).However, the change of temperature occasionally caused by the condensation shall be considered;

4.4 When the product is installed, the gradient with the vertical plane shall not exceed 5°;

4.5 The product shall be installed in a place without severe vibration and shock and that will not cause corrosion to the electrical components. The problem can be resolved through consultation with the manufacturer in case that users have special requirements.

5 Technical Parameters

Technical parametersSP-JXF
Rated current (A)630
Rated insulation voltage Ui (V AC)690
Rated operating voltage (V AC)400
Rated impulse withstand voltage (KV)8
Frequency (Hz)50
Rated short-time withstand current Icw (KA/1S)20
IP protection degree≤IP65
OperationIndoor, outdoor
Maximum altitude (m)2000
Average ambient temperature (°C)35
Pollution degree3
Box materialCold-roll steel sheet, stainless steel, ABS, and PC
CoatingElectrostatic spraying epoxy resin powder
ColorRAL7035 RAL7035 (industrial ash), customized
Insulation material inside the boxHigh temperature resistance and fire resistance

7 Outline and Installation Dimension

SP-JXF outline and installing dimension

Outline dimensionHeight (H)Width (W)Depth (D)
2520/14250200140
3025/14300250140
3025/18300250180
3030/14300300140
3030/18300300180
4030/14400300140
4030/20400300200
5040/14500400140
6040/20600400200
6040/23600400230
6050/14600500140
6050/20600500200
6050/23600500230
7050/16700500160
7050/20700500200
7050/23700500230
8060/20800600200
8060/23800600230
8060/25800600250
10080/201000800200
10080/251000800250
10080/301000800300

7.1、SP-JXF outline and installing dimension

Outline dimensionHeight  (H)Width (W)Depth  (D)
3025/15300250150
3025/18300250180
3030/15300300150
3030/18300300180
4030/15400300150
4030/20400300200
5040/15500400150
5040/20500400200
6040/15600400150
6040/20600400200
6050/15600500150
6050/20600500200
7050/15700500150
7050/20700500200
7060/15700600150
7060/20700600200
8060/20800600200
8060/25800600250
8070/20800700200
8070/25800700250
10080/201000800200
10080/251000800250

8 Ordering Instruction

When ordering, please note:
8.1 Model;
8.2 Installation method;
8.3 Structure form;
8.4 System diagram, and control schematic diagram;
8.5 The problem can be resolved through consultation in case of special requirements.

Customization
Our products boast customizable materials and dimensions, ensuring a tailored experience. With a range of materials to choose from and the ability to adjust sizes to your liking, our offerings are designed to meet your unique needs and preferences.
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