Enclosure Electrical Components & Harnessing

This page will outline all the electrical components inside of the enclosure. This will include everything that requires electrical connection except the battery pack and the aux battery.

Type	Part	Used For	QTY
Boards	AFE	Handles interactions with main pack Reads cell voltages & temperatures. Performs load balancing	3
	Current Sense	Reads pack current	1
	BMS Carrier	Brain of the BMS system. Logs voltage, current, temperature, triggers BMS switch. Used for SOC model Watches our for overvoltage, overcurrent, undervoltage, undercurrent	1
	DCDC	Converts pack voltage (HV) to voltage usable for low voltage electrical components (like fans, boards, lights, horn, etc.)	1
Main Power Switch	Main Pack Relay	Electrically isolates battery pack Part of Main Power Switch (as defined by ASC)	2
Main Power Switch	Solar Relay	Electrically isolates battery pack Part of Main Power Switch (as defined by ASC)	1
Fuse	Main Fuse	Protects components in case of current surge	1
Battery Pack Accessories	Noctua NF-F12 IPPC 3000 Fans	Cooling main pack (hopefully)	2

Possible Changes

ASC reg. 8.5.B states that wires “branching off the main bus circuit must have properly sized fuses”. Currently the main fuse is between the positive terminal of the pack and a main pack relay. It must be clarified with ASC whether by “branching off the main bus circuit”, they are requiring us to have fuses after the main fuse to protect components. I asked Forest and he wasn’t 100% sure either.

If we do need to add more fuses, we would need a solar fuse and possibly a motor fuse as well. This page will be updated once we clarify with ASC what they mean in 8.5.B.

Relevant Pages

MSXV Harnessing - Electrical Mock-up (Hardware’s electrical harnessing page, includes all circuits in and out of enclosure)