Introduction
Double insulation enclosures provide an extra layer of safety for electrical installations by eliminating the need for an earth connection.

Double insulation enclosures provide an extra layer of safety for electrical installations by eliminating the need for an earth connection.

The SB series boasts an IP66 rating, indicating complete protection against dust and strong water jets. The IK10 rating signifies high impact resistance, making these enclosures suitable for demanding environments.
The transparent cover is made from UV-stable polycarbonate, ensuring clarity and durability even in outdoor applications.
The SB series is designed to operate in a wide temperature range from -30°C to +60°C, making them suitable for various climatic conditions.
The SB series is suitable for photovoltaic (PV) applications with a nominal voltage of 1000 V DC.
Attaching the top cover by four screws using a flat screwdriver (Max. 2,1 Nm).
The enclosures feature double insulation, providing enhanced safety and eliminating the need for an earth connection.
The SB series is supplied in three mould sizes: SB-32, SB-44 and SB-64 - all factory-fitted with a polyester mounting plate and ready for wall fixing through moulded Ø 8 mm holes.
Bases are glass-fibre-reinforced polyester (RAL 7035, V-0, glow-wire 960 °C); lids are UV-stable, transparent polycarbonate (V-2, glow-wire 750 °C). Every model is IP 66 / IK 10, double-insulated (Class II) and rated up to 1 500 V DC / 1 000 V AC at service temperatures from –30 °C to +60 °C, conforming to IEC 62208 and RoHS. Standard kit includes top membrane glands, twin aluminium floor glands, four flat screws for the lid (max 2.1 Nm) and an earthing set; optional hinge set SB-HIN converts the lid to a swing door. Weights range from 1.25 kg (SB-32) to 5.05 kg (SB-64).
Double insulation enclosures find applications in various industries and settings, including:
These enclosures are constructed with reinforced insulation or an additional insulation barrier, ensuring that live parts cannot come into contact with the enclosure's exterior, even in the event of a fault. This enhanced protection makes double insulation enclosures particularly suitable for applications where there is a risk of electric shock, such as in damp or humid environments.
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