Marine and Offshore Ex i Applications

When I/O modules are used in marine Ex i applications, additional requirements must be considered alongside those described under Ex i Applications Ex i.

Power Supply Concept for Marine Applications in Ex i Zone, Class A

To use intrinsically safe modules Class A marine applications (all areas, except bridge and open deck), the filter module 750-624/xxx-xxx must be used in conjunction with the Ex i supply module.

Power Supply Concept for Marine Applications in Ex i Zone – Class A

1	Filter module, 24 VDC, HI GF (750-626/020-002) or filter module, 24 VDC, HI (750-626/020-000)
2	Bus supply module, 24 VDC (750-602) or bus supply module, 24 VDC, with fuse (750-601) or bus supply module, 24 VDC, with fuse and diagnostics (750-610)
3	Filter module, 24 VDC, HI GF (750-624/020-002) or filter module, 24 VDC, HI (750-624/020-000)
4	Bus supply module, 24 VDC, Ex i, with diagnostics (750-606) or bus supply module, 24 VDC, Ex i (750-625/000-001)
5	Ex i I/O modules

Power Supply Concept for Marine Applications in Ex i Zone, Class B

To use intrinsically safe modules Class B marine applications (all areas, except bridge and open deck), the filter module 750-626/xxx-xxx must be used in conjunction with the Ex i supply module.

Power Supply Concept for Marine Applications in Ex i Zone – Class B

1	Filter module, 24 VDC, HI GF (750-626/020-002) or filter module, 24 VDC, HI (750-626/020-000)
2	Filter module, 24 VDC, HI GF (750-626/020-002) or filter module, 24 VDC, HI (750-626/020-000)
3	Bus supply module, 24 VDC, Ex i, with diagnostics (750-606) or bus supply module, 24 VDC, Ex i (750-625/000-001)
4	Ex i I/O modules