Specifications:
The document provides specifications for junction boxes and terminal boxes used in various industrial applications. These boxes are available in different entry diameters and configurations, ranging from 2 to 4 entries. The entry diameters are specified in both inches and millimeters, with corresponding model numbers for each configuration.

Materials and Threads:
The junction boxes are made from either aluminum or stainless steel AISI 316. They support various threading standards, including GAS Rp UNI ISO 7/1, NPT ANSI B1.20.1, GAS UNI ISO 228, and Metric ISO 261/965.

Temperature and Environmental Ratings:
The boxes are rated for use in hazardous zones (Zone 1 - 21 and Zone 2 - 22) with temperature classifications T6, T5, T4, and T3. They are designed to operate within temperature ranges of -40°C to +150°C, depending on the specific model and application. The boxes have an IP66/67 rating, indicating high resistance to dust and water ingress.

Mounting and Usage:
Junction boxes SC, SL, ST, and SX can be equipped with mounting feet for easy installation on walls or ceilings. They are primarily used for conduit connections and can either be empty for conductor insertion or equipped with terminals for conductor derivation.

Recommendations:
The temperature of use should be defined at the time of order to ensure compatibility with specific application requirements. The document emphasizes the importance of selecting the appropriate model based on the required size, threading, and material to ensure optimal performance in the intended environment.