![b-p-marine-1500x1500](https://www.rhsboating.com.au/images/com_hikashop/upload/b-p-marine-1500x1500.jpg) Description: Take a considered approach to your boat's battery controls with B-P Marine switches, isolators and relays from RHS Boating & Marine. The range includes battery isolation and selection options, compact switches, panel-mount assemblies and a voltage sensitive relay for compatible electrical installations. The right choice depends on more than the size of the switch. Compare the system voltage, continuous current rating, starting load, terminal arrangement and mounting dimensions with your installation. Battery selectors and simple on/off isolators perform different functions, so check the operating positions carefully. Each product listing provides the details needed to compare suitable options for a replacement or planned electrical upgrade. [ ![103166](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/103166.jpg "SARCA Excel Galvanised Boat Anchor – No. 3 (12.5kg) – Boat Anchoring Equipment") ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-3-12-5kg-boat-anchoring-equipment.html) $483.18 each [ SARCA Excel Galvanised Boat Anchor – No. 3 (12.5kg) – Boat Anchoring Equipment ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-3-12-5kg-boat-anchoring-equipment.html) [ 103166 ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-3-12-5kg-boat-anchoring-equipment.html) [+](#) [–](#) [ ![103168](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/103168.jpg "SARCA Excel Galvanised Boat Anchor – No. 4 (16kg) – Boat Anchoring Equipment") ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-4-16kg-boat-anchoring-equipment.html) $775.28 each [ SARCA Excel Galvanised Boat Anchor – No. 4 (16kg) – Boat Anchoring Equipment ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-4-16kg-boat-anchoring-equipment.html) [ 103168 ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-4-16kg-boat-anchoring-equipment.html) [+](#) [–](#) [ ![103170](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/103170.jpg "SARCA Excel Galvanised Boat Anchor – No. 5 (22kg) – Boat Anchoring Equipment") ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-5-22kg-boat-anchoring-equipment.html) $937.89 each [ SARCA Excel Galvanised Boat Anchor – No. 5 (22kg) – Boat Anchoring Equipment ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-5-22kg-boat-anchoring-equipment.html) [ 103170 ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-5-22kg-boat-anchoring-equipment.html) [+](#) [–](#) [ ![103172](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/103172.jpg "SARCA Excel Galvanised Boat Anchor – No. 6 (30kg) – Boat Anchoring Equipment") ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-6-30kg-boat-anchoring-equipment.html) $1,212.67 each [ SARCA Excel Galvanised Boat Anchor – No. 6 (30kg) – Boat Anchoring Equipment ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-6-30kg-boat-anchoring-equipment.html) [ 103172 ](https://www.rhsboating.com.au/categories/sarca-excel-galvanised-boat-anchor-no-6-30kg-boat-anchoring-equipment.html) [+](#) [–](#) [ ![402242](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/402242.jpg "SARCA W3-4 Alloy Bow Sprit – Marine Anchoring – Boat Anchoring Equipment") ](https://www.rhsboating.com.au/categories/sarca-w3-4-alloy-bow-sprit-marine-anchoring-boat-anchoring-equipment.html) $339.01 each [ SARCA W3-4 Alloy Bow Sprit – Marine Anchoring – Boat Anchoring Equipment ](https://www.rhsboating.com.au/categories/sarca-w3-4-alloy-bow-sprit-marine-anchoring-boat-anchoring-equipment.html) [ 402242 ](https://www.rhsboating.com.au/categories/sarca-w3-4-alloy-bow-sprit-marine-anchoring-boat-anchoring-equipment.html) [+](#) [–](#) [ ![402268](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/chatgpt_image_sep_24_2026_09_02_48_am.jpg "SARCA W3-4 Bow Sprit Captive Nut – For Aluminium Bow Sprit – Marine Anchoring") ](https://www.rhsboating.com.au/categories/sarca-w3-4-bow-sprit-captive-nut-for-aluminium-bow-sprit-marine-anchoring.html) $35.45 each [ SARCA W3-4 Bow Sprit Captive Nut – For Aluminium Bow Sprit – Marine Anchoring ](https://www.rhsboating.com.au/categories/sarca-w3-4-bow-sprit-captive-nut-for-aluminium-bow-sprit-marine-anchoring.html) [ 402268 ](https://www.rhsboating.com.au/categories/sarca-w3-4-bow-sprit-captive-nut-for-aluminium-bow-sprit-marine-anchoring.html) [+](#) [–](#) [ ![402269](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/chatgpt_image_sep_24_2026_09_02_48_am.jpg "SARCA W3-4 Bow Sprit Captive Nut – For Stainless Steel Bow Sprit") ](https://www.rhsboating.com.au/categories/sarca-w3-4-bow-sprit-captive-nut-for-stainless-steel-bow-sprit.html) $35.45 each [ SARCA W3-4 Bow Sprit Captive Nut – For Stainless Steel Bow Sprit ](https://www.rhsboating.com.au/categories/sarca-w3-4-bow-sprit-captive-nut-for-stainless-steel-bow-sprit.html) [ 402269 ](https://www.rhsboating.com.au/categories/sarca-w3-4-bow-sprit-captive-nut-for-stainless-steel-bow-sprit.html) [+](#) [–](#) [ ![402243](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/402243.jpg "SARCA W3-4 Stainless Steel Bow Sprit – Marine Anchoring – 402243") ](https://www.rhsboating.com.au/categories/sarca-w3-4-stainless-steel-bow-sprit-marine-anchoring-402243.html) $530.43 each [ SARCA W3-4 Stainless Steel Bow Sprit – Marine Anchoring – 402243 ](https://www.rhsboating.com.au/categories/sarca-w3-4-stainless-steel-bow-sprit-marine-anchoring-402243.html) [ 402243 ](https://www.rhsboating.com.au/categories/sarca-w3-4-stainless-steel-bow-sprit-marine-anchoring-402243.html) [+](#) [–](#) [ ![402245](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/402245.jpg "SARCA W5A Stainless Steel Bow Sprit – Marine Anchoring – 402245") ](https://www.rhsboating.com.au/categories/sarca-w5a-stainless-steel-bow-sprit-marine-anchoring-402245.html) $804.91 each [ SARCA W5A Stainless Steel Bow Sprit – Marine Anchoring – 402245 ](https://www.rhsboating.com.au/categories/sarca-w5a-stainless-steel-bow-sprit-marine-anchoring-402245.html) [ 402245 ](https://www.rhsboating.com.au/categories/sarca-w5a-stainless-steel-bow-sprit-marine-anchoring-402245.html) [+](#) [–](#) [ ![402246](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/402246.jpg "SARCA W5B Stainless Steel Bow Sprit (Long Mounting Base) – Marine Anchoring") ](https://www.rhsboating.com.au/categories/sarca-w5b-stainless-steel-bow-sprit-long-mounting-base-marine-anchoring.html) $1,202.54 each [ SARCA W5B Stainless Steel Bow Sprit (Long Mounting Base) – Marine Anchoring ](https://www.rhsboating.com.au/categories/sarca-w5b-stainless-steel-bow-sprit-long-mounting-base-marine-anchoring.html) [ 402246 ](https://www.rhsboating.com.au/categories/sarca-w5b-stainless-steel-bow-sprit-long-mounting-base-marine-anchoring.html) [+](#) [–](#) [ ![354526](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/354526.jpg "Scepter 11L Marine Fuel Tank – Low Profile With Gauge – Marine Fuel System Parts") ](https://www.rhsboating.com.au/categories/scepter-11l-marine-fuel-tank-low-profile-with-gauge-marine-fuel-system-parts.html) $94.18 each [ Scepter 11L Marine Fuel Tank – Low Profile With Gauge – Marine Fuel System Parts ](https://www.rhsboating.com.au/categories/scepter-11l-marine-fuel-tank-low-profile-with-gauge-marine-fuel-system-parts.html) [ 354526 ](https://www.rhsboating.com.au/categories/scepter-11l-marine-fuel-tank-low-profile-with-gauge-marine-fuel-system-parts.html) [+](#) [–](#) [ ![354528](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/354528.jpg "Scepter 23L Marine Fuel Tank – Low Profile With Gauge – Marine Fuel System Parts") ](https://www.rhsboating.com.au/categories/scepter-23l-marine-fuel-tank-low-profile-with-gauge-marine-fuel-system-parts.html) $111.55 each [ Scepter 23L Marine Fuel Tank – Low Profile With Gauge – Marine Fuel System Parts ](https://www.rhsboating.com.au/categories/scepter-23l-marine-fuel-tank-low-profile-with-gauge-marine-fuel-system-parts.html) [ 354528 ](https://www.rhsboating.com.au/categories/scepter-23l-marine-fuel-tank-low-profile-with-gauge-marine-fuel-system-parts.html) [+](#) [–](#) [ ![354521](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/354521.jpg "Scepter 25L Marine Fuel Tank – With Gauge – Marine Fuel System Parts") ](https://www.rhsboating.com.au/categories/scepter-25l-marine-fuel-tank-with-gauge-marine-fuel-system-parts.html) $111.79 each [ Scepter 25L Marine Fuel Tank – With Gauge – Marine Fuel System Parts ](https://www.rhsboating.com.au/categories/scepter-25l-marine-fuel-tank-with-gauge-marine-fuel-system-parts.html) [ 354521 ](https://www.rhsboating.com.au/categories/scepter-25l-marine-fuel-tank-with-gauge-marine-fuel-system-parts.html) [+](#) [–](#) [ ![351212](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/351212.jpg "Scepter 45L Marine Fuel Tank – Low Profile – Marine Fuel System Parts") ](https://www.rhsboating.com.au/categories/scepter-45l-marine-fuel-tank-low-profile-marine-fuel-system-parts.html) $182.81 each [ Scepter 45L Marine Fuel Tank – Low Profile – Marine Fuel System Parts ](https://www.rhsboating.com.au/categories/scepter-45l-marine-fuel-tank-low-profile-marine-fuel-system-parts.html) [ 351212 ](https://www.rhsboating.com.au/categories/scepter-45l-marine-fuel-tank-low-profile-marine-fuel-system-parts.html) [+](#) [–](#) [ ![354550](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/354550.jpg "Scepter Fuel Cap – Boat Fuel Systems – Marine Fuel System Parts") ](https://www.rhsboating.com.au/categories/scepter-fuel-cap-boat-fuel-systems-marine-fuel-system-parts.html) $25.99 each [ Scepter Fuel Cap – Boat Fuel Systems – Marine Fuel System Parts ](https://www.rhsboating.com.au/categories/scepter-fuel-cap-boat-fuel-systems-marine-fuel-system-parts.html) [ 354550 ](https://www.rhsboating.com.au/categories/scepter-fuel-cap-boat-fuel-systems-marine-fuel-system-parts.html) [+](#) [–](#) [ ![408003](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/408003.jpg "Scupper Repair Kit Large Scuppers – Boat Hardware – Boat Deck & Cabin Hardware") ](https://www.rhsboating.com.au/categories/scupper-repair-kit-large-scuppers-boat-hardware-boat-deck-cabin-hardware.html) $19.40 each [ Scupper Repair Kit Large Scuppers – Boat Hardware – Boat Deck & Cabin Hardware ](https://www.rhsboating.com.au/categories/scupper-repair-kit-large-scuppers-boat-hardware-boat-deck-cabin-hardware.html) [ 408003 ](https://www.rhsboating.com.au/categories/scupper-repair-kit-large-scuppers-boat-hardware-boat-deck-cabin-hardware.html) [+](#) [–](#) [ ![408002](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/408002.jpg "Scupper Repair Kit Small Scuppers – Boat Hardware – Boat Deck & Cabin Hardware") ](https://www.rhsboating.com.au/categories/scupper-repair-kit-small-scuppers-boat-hardware-boat-deck-cabin-hardware.html) $14.59 each [ Scupper Repair Kit Small Scuppers – Boat Hardware – Boat Deck & Cabin Hardware ](https://www.rhsboating.com.au/categories/scupper-repair-kit-small-scuppers-boat-hardware-boat-deck-cabin-hardware.html) [ 408002 ](https://www.rhsboating.com.au/categories/scupper-repair-kit-small-scuppers-boat-hardware-boat-deck-cabin-hardware.html) [+](#) [–](#) [ ![RWB125](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/RWB125.jpg "Seabird Nylon Ventilator - 190mm - 145mm Wide") ](https://www.rhsboating.com.au/categories/seabird-nylon-ventilator-190mm-145mm-wide.html) $16.42 each [ Seabird Nylon Ventilator - 190mm - 145mm Wide ](https://www.rhsboating.com.au/categories/seabird-nylon-ventilator-190mm-145mm-wide.html) [ RWB125 ](https://www.rhsboating.com.au/categories/seabird-nylon-ventilator-190mm-145mm-wide.html) [+](#) [–](#) [ ![385470](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/385470.jpg "SEAFLO 10L Portable Marine Toilet – Boat Pumps & Plumbing 385470") ](https://www.rhsboating.com.au/categories/seaflo-10l-portable-marine-toilet-boat-pumps-plumbing-385470.html) $147.80 each [ SEAFLO 10L Portable Marine Toilet – Boat Pumps & Plumbing 385470 ](https://www.rhsboating.com.au/categories/seaflo-10l-portable-marine-toilet-boat-pumps-plumbing-385470.html) [ 385470 ](https://www.rhsboating.com.au/categories/seaflo-10l-portable-marine-toilet-boat-pumps-plumbing-385470.html) [+](#) [–](#) [ ![187408](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/187408.jpg "Seaflo 1100GPH Automatic Marine Bilge Pump – 12v – Boat Pumps & Plumbing") ](https://www.rhsboating.com.au/categories/seaflo-1100gph-automatic-marine-bilge-pump-12v-boat-pumps-plumbing.html) $83.80 each [ Seaflo 1100GPH Automatic Marine Bilge Pump – 12v – Boat Pumps & Plumbing ](https://www.rhsboating.com.au/categories/seaflo-1100gph-automatic-marine-bilge-pump-12v-boat-pumps-plumbing.html) [ 187408 ](https://www.rhsboating.com.au/categories/seaflo-1100gph-automatic-marine-bilge-pump-12v-boat-pumps-plumbing.html) [+](#) [–](#) [ ![187413](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/187413.jpg "Seaflo 1100GPH Low Profile Automatic Marine Bilge Pump – 12v") ](https://www.rhsboating.com.au/categories/seaflo-1100gph-low-profile-automatic-marine-bilge-pump-12v.html) $119.39 each [ Seaflo 1100GPH Low Profile Automatic Marine Bilge Pump – 12v ](https://www.rhsboating.com.au/categories/seaflo-1100gph-low-profile-automatic-marine-bilge-pump-12v.html) [ 187413 ](https://www.rhsboating.com.au/categories/seaflo-1100gph-low-profile-automatic-marine-bilge-pump-12v.html) [+](#) [–](#) Display #21 - [](https://www.rhsboating.com.au/brands-listing/category/b-p-marine-battery-switches-isolators-relays/view-category/layout-listing.html?start=4515&limit=21) - [](https://www.rhsboating.com.au/brands-listing/category/b-p-marine-battery-switches-isolators-relays/view-category/layout-listing.html?start=4515&limit=21) - [211](https://www.rhsboating.com.au/brands-listing/category/b-p-marine-battery-switches-isolators-relays/view-category/layout-listing.html?start=4515&limit=21 "211") - [212](https://www.rhsboating.com.au/brands-listing/category/b-p-marine-battery-switches-isolators-relays/view-category/layout-listing.html?start=4515&limit=21 "212") - [213](https://www.rhsboating.com.au/brands-listing/category/b-p-marine-battery-switches-isolators-relays/view-category/layout-listing.html?start=4515&limit=21 "213") - [214](https://www.rhsboating.com.au/brands-listing/category/b-p-marine-battery-switches-isolators-relays/view-category/layout-listing.html?start=4515&limit=21 "214") - [215](https://www.rhsboating.com.au/brands-listing/category/b-p-marine-battery-switches-isolators-relays/view-category/layout-listing.html?start=4515&limit=21 "215") - 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