Disconnect switch DPX3-I 630 3P 400 A 422216

DPX3-I 630 isolator is a reliable device designed for safely disconnecting electrical circuits under load. It is a key element in electrical installations, ensuring both safety and the ability to perform maintenance work without completely disconnecting the power supply. This device finds application in commercial buildings, industrial facilities, and critical infrastructure installations.

This three-pole isolator with a rated current of 400 A and an operating voltage of 220 to 690 V is designed to work with circuits with a rated conditional short-circuit current of up to 4 kA. Its solid construction and high quality of workmanship guarantee long-lasting and trouble-free operation. Made of high-quality materials, it ensures stable parameters even in harsh operating conditions.

Features and application

DPX3-I 630 functions as a main, safety, and maintenance isolator. This makes it a versatile solution that can be used in various situations – from disconnecting the power supply to an entire facility during maintenance work to providing safe isolation in the event of a failure. The ability to mount in distribution boards facilitates integration with existing electrical infrastructure. It has two switchable auxiliary contacts, allowing connection of additional signaling or control devices. A locking mechanism increases safety by preventing accidental opening of the circuit under voltage.

• Versatile application: Main, safety and maintenance isolator function in one device.
• Safety: Provides safe isolation of the circuit during maintenance and emergency work.
• Easy installation: Designed for mounting in distribution boards – quick integration with existing installation.
• High reliability: Solid construction and high-quality materials guarantee long-lasting trouble-free operation.
• Status indication: Two auxiliary contacts allow connection of isolator status signaling (e.g. alarm).
• Suitable for motor operation: C characteristic allows safe starting of devices with motors – does not switch off during short-term current surges during motor start-up.

User parameters and construction

The DPX3-I 630 isolator is characterized by a high rated operating power for AC-23 (160 kW) and a rated withstand short-circuit current Icw at 5 kA. It is made in gray color, which facilitates its identification in the distribution board. The connection of the main contacts is made by screw connection – a proven and reliable method of cable mounting. The device meets the requirements of IEC/EN 60947-3 standard, which confirms its compliance with European safety and quality standards. Additionally, the optional mounting of a motor drive or voltage release allows adaptation of the device to specific installation needs. The degree of protection IP30 provides protection against touching fingers and against the ingress of solid objects larger than 2.5 mm – an adequate level of protection for indoor installations.