Saftronics can advise customers regarding forms of internal separation and the types of construction that are available. The information below relating to forms of internal seperation should be used as a guide only:
| Form 1 |
|
Typical Variants |
No internal separation
 |
|
None |
| |
|
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| Form 2 |
|
Typical Variants |
Separation of busbars from the functional units
Terminals for external conductors NOT separated from busbars |
|
None |
| |
|
|
Terminals for external conductors separated from busbars |
|
Type 1: Busbar separation is achieved by insulated coverings e.g sleeving, wrapping or coatings
Type 2: Busbar separation is by metallic or non-metallic rigid barriers or partitions |
| |
|
|
| Form 3a |
|
Typical Variants |
Separation of busbars from the functional units
plus Separation of functional units from one another
plus Separation of terminals from the functional units but not from each other
Terminals for external conductors NOT separated from busbars |
|
None |
| |
|
|
| Form 3b |
|
Typical Variants |
Separation of busbars from the functional units
plus Separation of functional units from one another
plus Separation of terminals from the functional units but not from each other
|
|
|
Terminals for external conductors
separated from busbars |
Type 1: Busbar separation is achieved by insulated coverings e.g sleeving, wrapping or coatings
Type 2: Busbar separation is by metallic or non-metallic rigid barriers or partitions |
| |
|
|
| Form 4 |
|
Typical Variants |
Separation of busbars from the functional units
plus Separation of functional units from one another
plus Separation of terminals from the functional units |
|
|
Terminals for external conductors in same compartment as functional unit |
Type 1: Busbar separation is achieved by insulated coverings e.g sleeving, wrapping or coatings
Type 2: Busbar separation is by metallic or non-metallic rigid barriers or partitions. Cables glanded elsewhere. |
| |
|
|
Terminals for external conductors in same compartment as functional unit |
|
Type 3: All separation by metallic or non-metallic rigid barriers or partitions.
The terminals for each functional unit have their own integral glanding facility |
| |
|
|
Terminals NOT in same compartment as functional unit |
|
Type 4: Busbar separation is achieved by insulated coverings e.g sleeving, wrapping or coatings
Type 5: Busbar separation is by metallic or non-metallic rigid barriers or partitions. Terminals separated by insulated coverings. Cables glanded in common cabling chamber.
Type 6: All separation is by metallic or non-metallic rigid barriers or partitions. Cables glanded in common cabling chamber. |
| |
|
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Terminals NOT in same compartment as functional unit |
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Type 7: All separation by metallic or non-metallic rigid barriers or partitions. The terminals for each functional unit have their own integral glanding facility. |
