Insulating block configured for tool-free installation in an electrical assembly

A meter socket comprising:

• a meter socket enclosure comprising a first attachment structure;
• and
• an insulating block formed from a material that is an electrical insulator, the insulating block comprising a second attachment structure that is configured to engage the first attachment structure to securely attach the insulating block to the meter socket enclosure, wherein the first attachment structure and the second attachment structure are configured so that the second attachment structure engages the first attachment structure without the use of a tool,
• wherein the first attachment structure comprises a catch surface and the second attachment structure comprises a clip configured to engage the catch surface to securely attach the insulating block to the meter socket enclosure,
• wherein the meter socket enclosure has a recess or opening positioned adjacent the catch surface, the recess or opening being configured to receive a portion of the second attachment structure, and wherein the second attachment structure is configured to move within the recess or opening from a disengaged position, in which the clip does not engage the catch surface, to an engaged position, in which the clip engages the catch surface, and
• wherein the insulating block comprises a rear surface, wherein the second attachment structure comprises an upper surface, a first side surface, and a second side surface that each extend outward from the rear surface of the insulating block, wherein the second attachment structure comprises a rear wall that extends between the upper surface, the first side surface, and the second side surface, and wherein the clip extends from the rear wall toward the rear surface of the insulating block.