Isolating switch Dumeco 4P 250A DMV-250N/4 1814410

Isolator switch – reliable power disconnection

The Dumeco DMV-250N/4 isolator switch is a robust device designed for safely disconnecting electrical circuits. It provides a visible isolation gap, guaranteeing full safety during maintenance and repair of installations. It is an alternative to compact disconnectors, especially in situations where additional accessories are not required. The device is characterized by a very small mounting depth, which facilitates its installation even in limited spaces.

Design and application

This isolator, manufactured by Eaton Electric, is complete and ready for mounting in an enclosure. Designed to operate at a rated voltage of 690 V and a continuous current of 250 A, it is perfect for installations with a power of up to 140 kW (for AC-23, 400 V). Its design based on screw connections ensures secure and durable wire connections. It can be mounted on a plate, which increases installation flexibility. The rated conditional short-circuit current Iq is 100 kA, which provides protection against the effects of overloads and short circuits. The IP20 protection degree protects against accidental contact.

Key features and benefits

• Safety: Visible isolation gap guarantees complete disconnection of the circuit during maintenance and repair work.
• Compact dimensions: Width 205 mm, height 135 mm and depth only 63 mm facilitate installation in tight spaces.
• High reliability: Made of high-quality materials by a renowned manufacturer – Eaton Electric.
• Versatility: Suitable for use as an emergency switch (in accordance with standards).
• Resistance to working conditions: Rated operating voltage up to 690 V and high short-circuit withstand capacity (Icw = 12 kA) ensure stable operation in various conditions.
• Easy installation: Plate mounting option facilitates integration with existing electrical infrastructure.
• Application in various installations: Suitable for operation with continuous current for AC-21 (250 A) and AC-23 (250 A).
• Switching capacity: Rated operating power for AC-23 at 400 V is as much as 140 kW.