Specifications:
The document lists various models of manual change-over switches (LAS) with rated currents ranging from 20A to 125A. These switches are available in both 3-pole and 4-pole configurations. Each model is identified by a unique code number and includes details on weight and packaging.

Procedures:
The manual change-over switches are designed for breaking and changing over two low voltage electrical circuits. They are operated manually and consist of two standard switches that are mechanically interlocked. The operation is facilitated by a rotary front mechanism with an external double insulated door-interlock handle, providing an IP65 degree of protection.

Standards:
The switches comply with IEC 60947/1-3 standards, ensuring their suitability for industrial applications.

Accessories:
The document also mentions various accessories for the manual change-over switches, including door interlock handles, shafts, 4th poles, and auxiliary contacts. Each accessory is listed with a description, code number, weight, and packaging details.

Key Data:
The document provides technical data for switch disconnectors fuses LAF (NV/NH) and manual change-over switches LAS, although specific technical data pages are referenced but not included in the text.