An electrical connector comprising: a housing including a front housing and a rear housing matable to define the housing, wherein the front housing and the rear housing are molded as a single piece with a hinge member connecting the front housing and the rear housing, the rear housing rotatable about the hinge member from an open position to a closed position; the front housing having front terminal channels configured to receive terminals, the rear housing having rear terminal channels aligned with the front terminal channels when the rear housing is rotated to the closed position but not aligned with the front terminal channels when the rear housing is in the open position, wherein the rear terminal channels are configured to allow the terminals to at least partially pass therethrough into the front terminal channels during loading of the terminals into the housing, wherein, after the rear housing is moved to the closed position, the rear housing is movable from an unlocked position to a locked position, wherein, in the unlocked position, the rear terminal channels are aligned with the front terminal channels to allow terminals to freely pass between the rear terminal channels and the front terminal channels, and wherein, in the locked position, the rear terminal channels are at least partially offset relative to the front terminal channels to restrict the terminals from being removed from the front terminal channels, and wherein the front housing includes a securing feature, the rear housing includes a securing feature, in the closed position, the securing feature of the rear housing engages the securing feature of the front housing to hold the rear housing in the closed position, characterised in that the securing feature of the front housing comprises a catch, the securing feature of the rear housing comprises a latch having a first step and a second step, the first step configured to engage the catch in a first stage corresponding to the unlocked position, the second step configured to engage the catch in a second stage corresponding to the locked position, the rear housing configured to move relative to the front housing between the first stage and the second stage. a housing including a front housing and a rear housing matable to define the housing, wherein the front housing and the rear housing are molded as a single piece with a hinge member connecting the front housing and the rear housing, the rear housing rotatable about the hinge member from an open position to a closed position; the front housing having front terminal channels configured to receive terminals, the rear housing having rear terminal channels aligned with the front terminal channels when the rear housing is rotated to the closed position but not aligned with the front terminal channels when the rear housing is in the open position, wherein the rear terminal channels are configured to allow the terminals to at least partially pass therethrough into the front terminal channels during loading of the terminals into the housing, wherein, after the rear housing is moved to the closed position, the rear housing is movable from an unlocked position to a locked position, wherein, in the unlocked position, the rear terminal channels are aligned with the front terminal channels to allow terminals to freely pass between the rear terminal channels and the front terminal channels, and wherein, in the locked position, the rear terminal channels are at least partially offset relative to the front terminal channels to restrict the terminals from being removed from the front terminal channels, and wherein the front housing includes a securing feature, the rear housing includes a securing feature, in the closed position, the securing feature of the rear housing engages the securing feature of the front housing to hold the rear housing in the closed position, characterised in that the securing feature of the front housing comprises a catch, the securing feature of the rear housing comprises a latch having a first step and a second step, the first step configured to engage the catch in a first stage corresponding to the unlocked position, the second step configured to engage the catch in a second stage corresponding to the locked position, the rear housing configured to move relative to the front housing between the first stage and the second stage.