IBEM Connections Overview and Examples

IBEM is designed to be compact but practical in functionality.

Connections from the Inverter/Charger, and to the Battery Negative, is via a standard M8 Bolt / Crimp Ring Terminal.

Bolts The board has been designed to use ideally:

• Stainless Steel (A2), Socket Button Screw M8 x 20mm (16mm is also OK)
• M8 Serrated Flange Hex Nuts to the board (Hex Nut is also OK)
• M8 Ring Crimp Connector
• M8 Washer
• M8 Hex Nut clamping the Ring Crimp Connector

The reason for Stainless, is they are anti-corrosive and make good bonding to the board for the higher currents. Standard Hex Head is also fine.

Cable Type Due to currents and varying cable lengths, the thicker the cable the better. Copper Stranded Cable (Battery/Welding) is ideal based on the below.

Example Wire Gauges

• 6AWG = 16mm² = ~ 4.11mm⌀ = ~95A DC (Minimum)
• 4AWG = 25mm² = ~ 5.19mm⌀ = ~170A DC (Ideal)
• 2AWG = 35mm² = ~ 6.54mm⌀ = ~240A DC (Better)
• 1AWG = 50mm² = ~ 7.35mm⌀ = ~345A DC

Cable Terminals Using good quality Ring Crimp Connectors is the ideal.

• 4AWG = 25mm² = SC25-8
• 2AWG = 35mm² = SC35-10

It is always good and safe practice to heat shrink or PVC tape and shroud the connector.

Important Note

The DC positive which powers the board, MUST be via a safety fuse to the battery positive. A 100mA resettable fused is on the IBEM board itself to protect the IBEM components.

IBEM Connection Overview