Edwards EOL-4.7 — UL Certified 4.7 kΩ end-of-line resistor, catalogued by Edwards as EOL Resistor 4.7K.
A Class B circuit is supervised by passing a small current through a resistor fitted at the far end of the run, so a break in the field wiring shows at the panel as a trouble instead of going unnoticed. Edwards FireShield and FSC Series panels are built around a 4.7 kΩ value on both initiating device and notification appliance circuits, and this is the replacement resistor for that position.
- Resistance 4.7 kΩ; UL Certified
- Edwards catalogue description: EOL Resistor 4.7K, UL Certified
- The supervision value for Class B IDC and Class B NAC on the FSC Series
- FSC panels ship with one 4.7 kΩ UL certified resistor per IDC and per NAC
- EOL47PK7 is the Edwards pack of seven resistors of this same value
Read the decimal point before ordering: Edwards lists two separate parts one line apart, and EOL-47 is the 47 kΩ 1/2 watt resistor, ten times this value. EOL-15 is the 15 kΩ version, and EOL3.6-1.1 a different arrangement again, one 3.6 kΩ and one 1.1 kΩ resistor supplied together.
