A protector module (50) includes a housing (52) having cavities (58) into which are inserted surge protector elements (150). Each protector element upon full insertion engages a deflectable contact portion (82) of a first contact member (80) with an active electrode (156) thereof with the first contact member terminated at a second contact section (88) to a line between a central office and the customer, for providing surge protection to that circuit. In one method of connecting a protector module in a circuit, a second contact member (90) is placed within the cavity (58) connected to the customer service line while the first contact member is connected to the associated but separate line to the central office; when a protector (150) is inserted, it urges the deflectable contact portion of the first contact member (80) into engagement with an underlying contact portion (92) of the second contact member (90); when a protector is absent, service to the customer is interrupted until the protector (150) is replaced.