Repeatably releasable cable connector

A cable assembly for connecting a truck to a pump controller, the cable assembly comprising:

• a multi-wire cable connected to the truck;
• a multi-wire cable connected to the pump controller;
• a cable connector having male and female connector sockets that have electrical connectors therein and slide together in a mating direction to electrically connect the two multi-wire cables;
• a housing enclosing one connector socket and having a shoulder with a surface transverse to the mating direction;
• a second housing enclosing the other connector portion;
• and
• a resilient retainer spring attached to the second housing and extending parallel to the mating direction, wherein the second housing has a pair of protrusions and wherein the retainer spring has a retention loop that fits between the pair of protrusions in order to attach the retainer spring to the second housing, the retainer spring further having a finger that extends transverse to the mating direction, so that when the connector portions are mated, the finger slips over the shoulder surface and is held in position by the resilience of the spring to provide a retention force that resists a separation of the male and female connector portions, wherein the finger is shaped and resilience of the retainer spring is such that the finger slips off the shoulder surface upon application of a separation force greater than a predetermined magnitude between the male and female connector portions.