IQ Load Controller Additional Info

Load and Solar Circuit Control using IQ System Controller Auxiliary Contacts
25 © 2021 Enphase Energy Inc. All rights reserved. December 16, 2021
Square D
8910DP32V14
30
2 pole, NO
24 Vac
Square D
8910DPA63V14
60
3 pole, NO
24 Vac
Table 8: Supported contactors
Supported transformers (for power supply)
Supplier
Part Number
Secondary
Voltage
Primary Voltage
VA Rating
Fiada
B07RDBS6NK
24 Vac
120/208/240Vac
40
Endurance Pro
EP4031OF
24 Vac
120/208/240Vac
40
Table 9: Supported Transformers for power supply
Recommended fuses and fuse holders
1. 1A, Littelfuse 239 Series, 5×20 mm, Slo-Blo
®
Fuse in Series 150 fuse holder or equivalent
2. Eaton BP-AGC-1-RP 250 V glass fuse in BP/HMK-RP fuse holder
3. 3AG/AGC Screw Terminal Fuse holder
Reference bill of materials (BOM) for 60A load control
Reference BOM that can be used to design load shedding circuit of 60 A total load.
Item
Description
Quantity
Control transformer
Fiada B07RDBS6NK
1
Fuse Retainer
Littelfuse Universal Fuse Retainer Part No: 150145
1
Fuse
NTC 74-6SG1A-C 1 A 250V glass fuse
1
Contactor
Square D 8910DPA63V14
1
60 A
1
Box
6X6 PVC box rated for outdoor use (NEMA 3R or better) (Carlon
junction box, for example)
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 10: Reference BOM for a 60 A load control
1
A 3-pole contactor is specified since the 2-pole 60A contactor from Square D i.e., 8910DPA62V14 has been discontinued.