Niglon MS250MC 250A 4 Pole Changeover Switch
The Niglon MS250MC 250A 4 Pole Changeover Switch is a mild steel enclosed manual changeover switch designed for switching between two electrical supplies. Rated at 250A at 45°C, it provides a robust solution for commercial and industrial electrical installations.
The switch is housed in a 1.2mm mild steel enclosure with an epoxy powder-coated RAL 7035 finish. When correctly fitted, the enclosure provides IP65 ingress protection. The switch handle is padlockable and defeatable and accepts up to three padlocks.
Key Features
- Current rating at 45°C: 250A
- 4 pole manual changeover switch
- Rated operational current AC-22A at 415V: 250A
- Rated operational current AC-23A at 415V: 250A
- Rated insulation voltage Ui: 1000V
- Maximum operational voltage Ue max: 690V
- Rated impulse voltage Uimp: 12kV
- Dielectric strength at 50Hz for 1 minute: 3.5kV
- Rated making capacity at 415V, 0.35pf AC-23A: 2500A
- Rated breaking capacity at 415V, 0.35pf AC-23A: 2000A
- Defeatable handle accepts up to 3 padlocks
- Electrical endurance: 1,000 operations
- Mechanical endurance: 10,000 operations
Enclosure Specification
- Construction: 1.2mm mild steel
- Finish: epoxy powder coat
- Colour: RAL 7035
- Degree of ingress protection when fitted: IP65
- Overall dimensions: 600 x 600 x 300mm
- Weight: 15.7kg
- Terminal width: 25mm
- Terminal hole diameter: 9mm
Standards
- Switch: BS EN 60947-3
- Enclosure: BS EN 61439-1
Compatible Accessories
- A4DOCW – A4 Document Wallet
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