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The MNS low-voltage switchgear is composed of standardized, modular units. Each drawer is equipped with a reliable mechanical interlocking system to ensure safe and dependable operation. This switchgear is suitable for power supply systems with AC 50(60)Hz, rated working voltages of 400V or 660V, and rated currents up to 4000A in three-phase, five-wire configurations. It is widely used in power plants, substations, industrial and mining enterprises, commercial buildings, hotels, airports, docks, and communication centers for power generation, transmission, distribution, and control of power consumption equipment. Capacitor compensation cabinets can also be used with the main busbar for reactive power compensation.
Complies with GB7251.1 and IEC60439.
| Overvoltage Category | IV III | |
| Pollution Degree | 3 | |
| Rated Operational Voltage (Ue)(V) | 400/660 | |
| Rated Insulation Voltage (Ui)(V) | 660/1000 | |
| Rated Frequency (Hz) | 50 (60) | |
| Horizontal Busbar | Rated Current | ≤4000A |
| Rated Short-Time Withstand Current (Icw) (kA) | 50, 65, 80 (kA for 1 s r.m.s. value) | |
| Rated Peak Withstand Current (Ipk) (kA) | 105, 140, 176 (kA for 0.1 s maximum value) | |
| Vertical Busbar | Rated Maximum Operating Current | ≤1000A |
| Rated Short-Time Withstand Current | 50kA | |
| Rated Peak Withstand Current | 105kA | |
| Enclosure Protection Grade | IP30, IP43 (upon request) | |
CABA started its journey in 2005 with a clear commitment to producing reliable, durable electrical enclosures and control cabinets for industrial customers. Today, we deliver a comprehensive range of electrical enclosures, power distribution panels, industrial automation control panels and energy storage cabinets that are built based on over two decades of experience, engineering expertise and a genuine passion for quality.
The MNS cabinet can be configured as a single-sided or double-sided operation cabinet. Each cabinet is divided into three compartments: the main busbar compartment, the electrical compartment, and the cable compartment (as shown in the diagram below).
To prevent arc flashes and short circuits, a flame-retardant, high-density polyurethane functional board or a galvanized isolation plate is installed between the main busbar compartment and the electrical compartment, ensuring operational safety.
Between drawers, galvanized metal partitions with ventilation holes provide isolation to reduce interference between circuits.
High-performance, halogen-free plastic components with CTI300 insulation support live parts, improving electrical safety.
The cabinet is also equipped with an independent PE grounding system and N neutral conductor running throughout the unit, allowing each circuit to connect to grounding or neutral points nearby. The frame is fixed with self-tapping screws to ensure high grounding reliability.
Rich industry experience
Quality certifications
In-house manufacturing
Industrial Electrical Enclosure Manufacturer Since 2005
