A sealed enclosure (100, 800, 900, 2000) comprising: a housing (110, 802, 902, 2002) defining an opening (816, 908, 2008); a cable sealing arrangement (119, 820, 914, 2010) including: inner and outer sealant axial containment structures (129, 850, 852, 920, 922, 2022, 2024) that are axially fixed relative to one another; and sealant (121-123, 824, 924, 2020) contained between the inner and outer axial containment structures (129, 850, 852, 2022, 2024); the cable sealing arrangement (119, 820, 2010) being positioned within the opening (816, 2008), the cable sealing arrangement (119, 820, 2010) engaging the housing (110, 802, 2002) to seal the opening (816, 2008), the sealant (121-123, 824, 2020) of the cable sealing arrangement (119, 820, 2010) including a block of gel (824, 2020) defining a total gel volume, the cable sealing arrangement (119, 820, 2010) including at least first and second gel sections (121, 122, 826, 828, 830, 2028, 2030, 2032) which coincide with at least a portion of the block of gel (824, 2020), the cable sealing arrangement (119, 820, 2010) including a cable pass-through location (832, 834, 2091) defined at an interface between the first and second gel sections (121, 122, 826, 828, 830, 2028, 2030, 2032), the first and second gel sections (121, 122, 826, 828, 830, 2028, 2030, 2032) being configured to form seals about cables (836, 838) routed axially through the cable pass-through location (832, 834, 2091), the gel volume having a first outer boundary corresponding to an outer shape of the gel volume when the block of gel (824, 2020) is not sealing about cables (836, 838), characterized in that, an open space is provided to accommodate deformation of the block of gel (824, 2020) when the gel is pressurized while one or more cables (836, 838) are within the cable pass-through location (832, 834, 2091), and wherein the open space has a volume that is at least 5 percent, or at least 10 percent, or at least 12.5 percent or at least 15 percent as large as the total gel volume. a housing (110, 802, 902, 2002) defining an opening (816, 908, 2008); a cable sealing arrangement (119, 820, 914, 2010) including: inner and outer sealant axial containment structures (129, 850, 852, 920, 922, 2022, 2024) that are axially fixed relative to one another; and sealant (121-123, 824, 924, 2020) contained between the inner and outer axial containment structures (129, 850, 852, 2022, 2024); inner and outer sealant axial containment structures (129, 850, 852, 920, 922, 2022, 2024) that are axially fixed relative to one another; and sealant (121-123, 824, 924, 2020) contained between the inner and outer axial containment structures (129, 850, 852, 2022, 2024); the cable sealing arrangement (119, 820, 2010) being positioned within the opening (816, 2008), the cable sealing arrangement (119, 820, 2010) engaging the housing (110, 802, 2002) to seal the opening (816, 2008), the sealant (121-123, 824, 2020) of the cable sealing arrangement (119, 820, 2010) including a block of gel (824, 2020) defining a total gel volume, the cable sealing arrangement (119, 820, 2010) including at least first and second gel sections (121, 122, 826, 828, 830, 2028, 2030, 2032) which coincide with at least a portion of the block of gel (824, 2020), the cable sealing arrangement (119, 820, 2010) including a cable pass-through location (832, 834, 2091) defined at an interface between the first and second gel sections (121, 122, 826, 828, 830, 2028, 2030, 2032), the first and second gel sections (121, 122, 826, 828, 830, 2028, 2030, 2032) being configured to form seals about cables (836, 838) routed axially through the cable pass-through location (832, 834, 2091), the gel volume having a first outer boundary corresponding to an outer shape of the gel volume when the block of gel (824, 2020) is not sealing about cables (836, 838), characterized in that, an open space is provided to accommodate deformation of the block of gel (824, 2020) when the gel is pressurized while one or more cables (836, 838) are within the cable pass-through location (832, 834, 2091), and wherein the open space has a volume that is at least 5 percent, or at least 10 percent, or at least 12.5 percent or at least 15 percent as large as the total gel volume.