Telecommunications terminal blocks for making and breaking connections with a telecommunications conductor include a unitary base that defines a body cavity having a hinge member at an end thereof. In other embodiments a base includes a hinge member on an external surface thereof. First and second connectors are mounted in the base and extend into the body cavity. A toggle member is rotatably connected to the base at the hinge member. The toggle member has first and second conductor receiving openings therein and first and second conductor passages extending from the respective openings past respective ones of the connectors. An environmental sealant material is positioned in the body cavity.