IECEx, ATEX & INMETRO Ex d certified solutions for enclosure power and signal isolation.
Features
Global Ex d approvals
Isolates low power signals and up to 32 A power
Compatible with MiniPurge & SmartPurge II
Aluminium construction
Expo’s Interface Units provide switching of power and signals to the pressurized enclosure, using a control signal from the purge system. This capability is required for enclosures installed in Zone 1/21 or Class I/II Div 1 hazardous locations.
2 types are available:
MiniPurge Interface Unit (MIU) – for pneumatic connection to a MiniPurge (with PO option)
SmartPurge Interface Unit (SIU) – for electrical connection to a SmartPurge
Standard units are available in 3 sizes of flame-proof / explosion-proof boxes, with a range of electrical and signal switching capacities.
Custom sizes and contents can be designed to meet specific project requirements.
| Protection method | Ex d – flame-proof / explosion-proof |
| Certifications | IECEx, ATEX, INMETRO, NEC |
| Power switching range | 16-32A (depending on configuration) |
| Signal switching capacity (max) | 2 off 4 pole 5A/250Vac (depending on configuration) |
| Cable glands | Boxes pre-drilled for approved glands |
| Manual override | MIU –optional key switch SIU –SmartPurge software or optional keyswitch |
