Encapsulated bus circuit for fluid heating systems

A heater assembly comprising:

• a plurality of resistive heaters arranged in discrete power phases, each resistive heater comprising a resistive heating element surrounded by dielectric material and a sheath;
• and
• a termination assembly comprising:
• a plurality of electrically nonconductive members, each electrically nonconductive member comprising a plurality of apertures configured to receive power pins of the plurality of resistive heaters;
• a plurality of connectors configured to connect the power pins to the electrically nonconductive members, wherein each electrically nonconductive member comprises a number of the plurality of connectors corresponding to a number of power pins being terminated;
• and
• an electrical circuit embedded in or disposed on at least one of the plurality of electrically nonconductive members.

A fluid heat exchanger comprising:

• a tube including an inlet and an outlet;
• a plurality of resistive heaters arranged in discrete power phases and disposed within the tube;
• and
• a termination assembly comprising:
• a plurality of electrically nonconductive members, each electrically nonconductive member comprising a plurality of apertures configured to receive power pins of the plurality of resistive heaters;
• a plurality of connectors configured to connect the power pins to the electrically nonconductive members, wherein each electrically nonconductive member comprises a number of the plurality of connectors corresponding to a number of power pins being terminated;
• and
• an electrical circuit embedded in or disposed on at least one of the plurality of electrically nonconductive members.