Ziton SMB-DIN1 | Surface Mount Box with DIN Rail | IP66 Enclosure for A-Series

FAQs

Which Ziton modules are compatible with the SMB-DIN1?

The SMB-DIN1 is compatible with the complete range of Ziton A-Series addressable interface modules. This includes the A45E-2 single input module (part 99202), A50E-2 relay module (part 99102), A60E isolator module (part 201301), and A70E conventional zone module (part 202501-101). The enclosure can accommodate up to two single-width modules (like the A45E-2) simultaneously, or one double-width module (like the A50E-2). The pre-fitted DIN rail allows modules to be simply clipped into place without any additional mounting hardware.

What does the IP66 rating mean?

The IP66 rating indicates that the SMB-DIN1 enclosure provides complete protection against dust ingress (the first “6”) and protection against powerful water jets from any direction (the second “6”). This makes the enclosure suitable for installation in dusty environments such as plant rooms, or locations where moisture may be present such as riser cupboards or areas that are regularly cleaned with water. The IP66 rating ensures the addressable interface modules housed inside are protected from environmental contamination that could affect their operation or reliability.

How many modules can fit in the SMB-DIN1?

The SMB-DIN1 has capacity for either two single-width modules or one double-width module. Single-width modules include the A45E-2 input module (45mm wide), so you can install two of these side-by-side on the DIN rail. Double-width modules include the A50E-2 relay module (85mm wide), which occupies the full width of the available DIN rail space. For applications requiring more module capacity, the SMB-DIN2 is available which accommodates four single-width modules or two double-width modules in a larger enclosure.

Can the SMB-DIN1 be used outdoors?

While the SMB-DIN1 has an IP66 rating providing excellent protection against dust and water jets, it is specified for indoor use only according to the technical specifications. The polystyrene construction and temperature rating are optimized for internal environments such as plant rooms, boiler houses, equipment cupboards, and riser shafts. For outdoor installations, consideration should be given to UV resistance, wider temperature ranges, and compliance with local electrical installation standards which may require different enclosure specifications for external applications.

What is the maximum operating temperature for the SMB-DIN1?

The SMB-DIN1 is rated for operating temperatures up to +70°C, which makes it suitable for installation in warm environments such as boiler rooms, plant rooms, or areas containing heat-generating equipment. This temperature rating ensures both the enclosure and the housed A-Series modules (which are typically rated to +55°C operating temperature) can function reliably even in elevated ambient conditions. However, always ensure the specific modules installed do not exceed their individual temperature ratings even if the enclosure itself can withstand higher temperatures.

How is the SMB-DIN1 mounted?

The SMB-DIN1 features flush surface mounting, allowing it to be fixed directly to walls or other flat surfaces using appropriate fixings for the substrate (screws for masonry, plasterboard fixings for cavity walls, etc.). The compact 110 × 110mm footprint provides a discreet mounting profile. The enclosure should be positioned to allow easy access for wiring connections to the modules inside while keeping cable runs as short as possible to the equipment being interfaced. Mounting locations should consider accessibility for future maintenance and testing while protecting the enclosure from physical damage.

What’s the difference between SMB-DIN1 and SMB-DIN2?

The SMB-DIN1 and SMB-DIN2 are different capacity versions of the same surface mounting box range. The SMB-DIN1 accommodates two single-width modules or one double-width module, making it suitable for smaller installations or where space is limited. The SMB-DIN2 provides larger capacity for four single-width modules or two double-width modules, ideal for locations where multiple interface functions are required at the same point (for example, combining input monitoring, relay outputs, and isolation in a single location). Both share the same IP66 rating and polystyrene construction.