IQ Load Controller Additional Info

Load and Solar Circuit Control using IQ System Controller Auxiliary Contacts
38 © 2021 Enphase Energy Inc. All rights reserved. December 16, 2021
Example Wiring 2x Solar Circuits using 30A contactors for Excess Solar
Shedding
Figure 32: Example Wiring 2x Solar Circuits using 30A contactors for Excess Solar Shedding
4. Reference BOM for 20 A load or PV shedding circuit using a 20A contactor
Item
Description
Quantity
Control transformer
EP40310F 24V 40VA
1
Fuse Retainer
Bussmann BP/HMK-RP fuse holder
1
Fuse
NTC 74-6SG1A-C 1 A 250V glass fuse
1
Contactor
Eaton C25BNB220T 20A
1
Box
Gratury Junction Box, Hinged Cover Stainless Steel Clip IP67
Waterproof Plastic Enclosure for Electrical Project Includes
Mounting Plate and Wall Bracket 290×190×140mm
(11.4"×7.5"×5.5")
1
Quick Disconnects/Fast on
Terminals/Receptacle lug
(required for contactors without
screw on terminals)
PIDG, Quick Disconnects, Receptacle, 22 – 18AWG Wire
Size
TE Internal #: 640911-1
2
Table 16: Reference BOM for 20 A load or PV shedding circuit using a 20A contactor