Honeywell 621-6501 Description Description Honeywell 12-24 V DC Source Self Protector Related products HONEYWELL 621-0010 HONEYWELL 621-9990 HONEYWELL 621-6575 HONEYWELL AX51-051-001 HONEYWELL 51304156-100 HONEYWELL DC3002-0-20A-2-89-0111-EN