If it has been determined that a “Type-Y” purge and pressurization system is required for the respective Hazardous Environment Rating (Class, Division, Group), the following table will assist in selecting the corresponding AB-CO PURGE Model No. that will meet your needs. Using the Volume Calculator, determine the appropriate enclosure volume required. Then click on the AB-CO PURGE Model No. to obtain the product data sheet.
Select An AB-CO, Y Purge Unit
Hazardous Environment Rating | |||||
Enclosure(s) Volume* | Class | Division | Groups | SELECT this AB-CO Y-PURGE Model No. based on Enclosure Volume and Hazardous Rating for the enclosure’s location | |
Type Y Purged & Pressurization System |
up to 15 ft³ | I and II | 1 | A,B,C,D, F, G | AFP-01Y-15 |
15ft³ – 75 ft³ | I and II | 1 | A,B,C,D, F, G | AFP-02Y-75 | |
75ft³ – 300 ft³ | I and II | 1 | A,B,C,D, F, G | AFP-03Y-300 |
Note: AB-CO PURGE and pressurization systems are currently not approved for Group E — Aluminum, Magnesium, and Alloy Dust
Definition of a Y Purge System
Type-Y Purge and Pressurization….Permits use of electrical equipment suitable for Division 2 or Zone 2 locations with the protected enclosure where the equipment would otherwise be required to be suitable for Division 1 or Zone I locations.
Per NFPA 496, Type-Y reduces the classification with an enclosure from Division 1 to Division 2
If it has been determined that a “Type-Z” purge and pressurization system is required for the respective Hazardous Environment Rating (Class, Division, Group), the following table will assist in selecting the corresponding AB-CO PURGE Model No. that will meet your needs. Using the Volume Calculator, determine the appropriate enclosure volume required. Then click on the AB-CO PURGE Model No. to obtain the product data sheet.
Select An AB-CO, Z Purge Unit
Hazardous Environment Rating | |||||
Enclosure(s) Volume* | Class | Division | Groups | SELECT this AB-CO Z-PURGE Model No. based on Enclosure Volume and Hazardous Rating for the enclosure’s location | |
Type Z
Purge & Pressurization System |
up to 2 ft³ | I | 2 | A,B,C,D | AP-01Z-02 |
up to 2 ft³ | II | 2 | F, G | AP-01Z-02 | |
2ft³ – 10 ft³ | I | 2 | A,B,C,D | AP-01Z-10 | |
2ft³ – 10 ft³ | II | 2 | F, G | AP-01Z-10 | |
15 ft³ | I and II | 2 | A,B,C,D, F, G | AFP-01Z-15 | |
15ft³ – 75 ft³ | I and II | 2 | A,B,C,D, F, G | AFP-02Z-75 | |
75ft³ – 300 ft³ | I and II | 2 | A,B,C,D, F, G | AFP-03Z-300 |
Note: AB-CO PURGE and pressurization systems are currently not approved for Group E — Aluminum, Magnesium, and Alloy Dust
Definition of a Z Purge System
Type-Z Purge and Pressurization…. Permits use of electrical equipment suitable for unclassified locations with the protected enclosure where the equipment would otherwise be required to be suitable for Division 2 or Zone 2 locations.
Per NFPA 496, Type-Z reduces the classification with an enclosure from Division 2 to unclassified
Knowing the lowest hazardous rating of any component in the electrical enclosure will help determine what type of purge and pressurization system will reduce the hazardous location classification. Once this is done, you can calculate the enclosure(s) volume (volume calculator) and using the following table, select the corresponding AB-CO PURGE Model No. that will meet your requirements. Then click on the AB-CO PURGE Model No. to obtain the product’s data sheet.
Select an AB-CO PURGE Unit By Hazardous Environment Rating
Hazardous Environment Rating | ||||||
Reduce the Classification within the Enclosure from – to | For Groups | Type of Purge System | Enclosure(s) Volume* | SELECT this AB-CO PURGE Model No. based on Enclosure Volume and the Hazardous Environment Classification rating required — either Division 2 or Unclassified | ||
Divison 1 | to | Division 2 | A,B,C,D, F, G | Y | 2 – 15 ft³ | AFP-01Y-15 |
A,B,C,D, F, G | Y | 15ft³ – 75 ft³ | AFP-02Y-75 | |||
A,B,C,D, F, G | Y | 75ft³ – 300 ft³ | AFP-03Y-300 | |||
Division 2 | to | Unclassified | A,B,C,D, F, G | Z | 2 ft³ | AP-01Z-02 |
A,B,C,D, F, G | Z | 2 – 10 ft³ | AP-01Z-10 | |||
A,B,C,D, F, G | Z | 2 – 15 ft³ | AFP-01Z-15 | |||
A,B,C,D, F, G | Z | 15ft³ – 75 ft³ | AFP-02Z-75 | |||
A,B,C,D, F, G | Z | 75ft³ – 300 ft³ | AFP-03Z-300 |
Note: NFPA 496 specifies a TYPE Z pressurization reduces the Hazardous Location Classification within an enclosure from Division 2 to unclassified.
Note: AB-CO PURGE and pressurization systems are currently not approved for Group E — Aluminum, Magnesium, and Alloy Dust
Once the volume of the electrical enclosure has been determined (volume calculator) , and the type of purge and pressurization system needed for the electrical enclosure’s hazardous location (Class, Division, Group) is known, the following table will assist in selecting the corresponding AB-CO PURGE Model No. that will meet your needs. Then click on the AB-CO PURGE Model No. to obtain the products’s data sheet.
Select an AB-CO PURGE Unit By Volume
Hazardous Environment Rating | |||||
Enclosure(s) Volume* | Type of Purge System | Class | Division | Groups | SELECT this AB-CO PURGE Model No. based on the selected Enclosure Volume, the type of purge system, and Hazardous Rating for the enclosure’s location. |
2 – 10 ft³ | Z | I | 2 | A,B,C,D | AP-01Z-02 |
Z | II | 2 | F, G | AP-01Z-02 | |
Z | I | 2 | A,B,C,D | AP-01Z-10 | |
Z | II | 2 | F, G | AP-01Z-10 | |
2 – 15 ft³ | Z | I and II | 2 | A,B,C,D, F, G | AFP-01Z-15 |
Y | I and II | 1 | A,B,C,D, F, G | AFP-01Y-15 | |
15ft³ – 75 ft³ | Z | I and II | 2 | A,B,C,D, F, G | AFP-02Z-75 |
Y | I and II | 1 | A,B,C,D, F, G | AFP-02Y-75 | |
75ft³ – 300 ft³ | Z | I and II | 2 | A,B,C,D, F, G | AFP-03Z-300 |
Y | I and II | 1 | A,B,C,D, F, G | AFP-03Y-300 |
Note: NFPA 496 specifies a TYPE Z pressurization reduces the Hazardous Location Classification within an enclosure from Division 2 to unclassified.
Note: AB-CO PURGE and pressurization systems are currently not approved for Group E — Aluminum, Magnesium, and Alloy Dust