Low Voltage Switchgear
MNS Low-Voltage Switchgear with Arc-Resistant Design
Product Overview
This MNS low-voltage switchgear variant is presented with an arc-resistant design and modular functional units. The source page also describes enclosed busbar compartments and configurable assemblies; consult the listed ratings when defining the required arrangement.
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Product Features
- Standardized components ensure universal compatibility, significantly reducing spare parts inventory and replacement costs.
- Anti-arc design effectively suppresses the spread of fault arcs, enhancing operational safety.
- Convenient expansion; no modifications to the main cabinet are required, and functional units can be added as needed.
- Fully enclosed busbar compartment design isolates external interference, reducing the risk of fault propagation.
- Adaptable to harsh operating conditions, possessing excellent temperature resistance, moisture resistance, and electromagnetic interference resistance.
Product Details & Applications
Operating Conditions
- Ambient Temperature: -5°C to +40°C, with a 24-hour average ≤+35°C.
- Atmospheric Conditions: Clean air with relative humidity ≤50% at +40°C. Higher humidity is permitted at lower temperatures (e.g., 90% at +20°C), but temperature variations may occasionally cause condensation.
- Altitude: ≤2000m.
- Transport & Storage Temperature: -25°C to +55°C, with short-term (≤24h) peaks up to +70°C. The equipment shall sustain no irrecoverable damage at these limits and shall operate normally under standard conditions. Note: For applications exceeding the above conditions, please consult our company for customization.
Technical Specifications
| Items | Unit | Data | |
|---|---|---|---|
| Rated operating voltage (Ue)(V) | 400/660 | ||
| Rated insulation voltage (Ui)(V) | Hz | 660/1000 | |
| Rated frequency (Hz) | A | 50(60) | |
| Horizontal busbar | Rated current | Times | ≤ 5000A |
| Horizontal busbar | Rated short-time withstand current (Icw)(kA) | kVA | 50,65,80 (Effective value for 1s) |
| Horizontal busbar | Rated peak withstand current (Ipk)(kA) | kA/S | 105,140-176 (Maximum value for 0.1s) |
| Vertical busbar | Rated maximum operating current | k | ≤ 1000A |
| Vertical busbar | Rated short-time withstand current | k | 50kA |
| Vertical busbar | Rated peak withstand current | A | 105kA |
| Overvoltage category | IV, III | ||
| Pollution degree | kV | 3 | |
| Protection level | A | IP30/IP40(Special Instructions) |
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