ABB OS400D04N2P OS series switch fuses Switchgear OS switch fuses

Here are the parameters of the ABB OS400D04N2P OS series switch fuses in English:

Rated Voltage: Usually expressed as a specific value, such as 400V, 500V, etc., indicating the maximum voltage at which the switch fuse can operate safely.

Rated Current: For example, 400A, which represents the maximum current that the fuse can continuously carry under normal operating conditions.

Breaking Capacity: It is the maximum short - circuit current that the switch fuse can safely interrupt. This value is usually expressed in kilo - amperes (kA), like 50kA, 100kA, etc.

Fuse Link Characteristics: Includes information about the fuse wire or element, such as its material, diameter, and length, which affect its fusing characteristics and time - current curve.

Switching Characteristics: Relate to the operation of the switch part of the device, including the switching speed, contact resistance, and mechanical life of the switch contacts.

Insulation Resistance: The resistance between the conductive parts of the switch fuse and the ground or other non - conductive parts, which should be high enough to ensure electrical safety. Usually expressed in mega - ohms (MΩ).

Degree of Protection: Indicates the level of protection provided by the switch fuse enclosure against external objects and moisture. It is often expressed in accordance with the IP (Ingress Protection) code, such as IP54, IP65, etc.