American Zettler Relay EF Suffix?

E is calling out "Epoxy Sealed"
-Epoxy seal for automatic wave soldering and immersion cleaning
-Substitute “DE” or “AE” in place of “D” or “A” for epoxy sealed version

F is calling out Class F insulation (155C)
-Class B insulation standard (130C)

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Summary

AZ2150-1A-12DEF
AZ2150-1A-24DEF
AZ2100-1A-24DEF
AZ576-1A-12DE
AZ576-1A-24DE
AZ2150-1C-12DEF
AZ2280-1A-12DEF
AZ2280-1A-24DEF
AZ2150-1C-24DEF
AZ2100-1C-24DEF
AZ576-1C-12DE
AZ576-1C-24DE
AZ2280-1C-24DEF
AZ2280-1C-12DEF
AZ2280-1A-24AEF
AZ733W-2A-12DE
AZ733W-2A-24DE
AZ2280-1C-24AEF
AZ2280-1A-240AEF
AZ2280-1C-240AEF
AZ2280-1A-277AEF
AZ2280-1C-277AEF
AZEV132-1AE1BG-12D
AZEV132-1AE1BG-24D
AZ943-1AH-12DE
AZ943-1AH-24DE
AZ943-1CH-12DE
AZ943-1CH-24DE
AZ7709-1AE-12DE
AZ7709-1AE-24DE
AZ7709T-1AE-12DE
AZ7709T-1AE-24DE
AZ9403-1A-12DE
AZ9403-1A-24DE
AZ9403-1C-12DE
AZ9403-1C-24DE
AZ2100-1A-12DEF
AZSR131-1AE-24D
AZ2280-1C-120AEF
AZSR143-1AE-12D
AZ2850-2A-24DE
AZ2850-2A-12DE
AZ2800-2A-24DE
AZ2800-2A-12DE
AZ2800-2A-24AE
AZ2800-2A-240AE
AZ2800-2A-120AE
AZ2800-2A-277AE
AZ2850-2C-12DE
AZSR165-1A-12DL
AZSR165-1AE-12DL
AZ2850-2C-24DE
AZSR165-1AE-24DL
AZSR165-1A-24DL
AZ2800-2C-24DE
AZ2800-2C-12DE
AZSR190-1A-12D
AZSR190-1A-24D
AZ2800-2C-24AE
AZ2800-2C-277AE
AZ2800-2C-240AE
AZ2800-2C-120AE
AZSR190T-1AE-24D
AZSR250-2AE-12D
AZSR250-2AE-24D
AZSR180-1AE-12D
AZSR1200-1AE-12D
AZSR1200-1AE-24D
AZ2100-1C-12DEF
AZ2280-1A-120AEF
AZSR131-1AE-12D
AZSR143-1AE-24D
AZSR190T-1AE-12D