{"product_id":"enerdrive-b-60-24-70-sp","title":"Balmar 24V 70A 60 Series Alternator, 3.15in Saddle Mount, Isolated Ground (No Pulley)","description":"\u003ch2\u003eHigh-Output 24V 70A Isolated Ground Alternator for Marine and Off-Grid Power\u003c\/h2\u003e\n\u003ch3\u003eEngineered for High-Output Charging and Corrosion Prevention\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e60 Series 24V 70A Alternator\u003c\/strong\u003e is a compact, high-output charging upgrade from Balmar's 6-Series. Balmar designs its 6-Series alternators for recreational applications and describes them as ideal for modest charging upgrades. Delivering a 70A charge rate at 24V, this unit helps replenish auxiliary battery banks during engine operation. For 24V applications, Balmar specifies a Max Charge multi-stage regulator.\u003c\/p\u003e\n\n\u003ch3\u003eThe Advantage of an Isolated Ground Architecture\u003c\/h3\u003e\n\u003cp\u003eOne of the critical engineering features of this alternator is its \u003cstrong\u003eIsolated Ground (IsoGrd)\u003c\/strong\u003e design. In standard alternators, the casing acts as the negative return path through the engine block. However, in marine vessels with steel or aluminium hulls, using the engine block or chassis as a return path can introduce stray currents. This accelerates galvanic corrosion and can cause severe damage to underwater metals, engine components, and sensitive onboard electronics.\u003c\/p\u003e\n\u003cp\u003eBy featuring a dedicated isolated negative terminal, this \u003cstrong\u003e24V isolated ground alternator\u003c\/strong\u003e keeps the DC charging circuit completely separate from the engine block. This significantly reduces the risk of electrolysis and electrical interference, protecting your vessel or vehicle investment over the long term.\u003c\/p\u003e\n\n\u003ch3\u003e3.15in Hitachi-Style Dual-Foot Saddle Mount\u003c\/h3\u003e\n\u003cp\u003eThis unit uses a dual-foot \u003cstrong\u003esaddle mount\u003c\/strong\u003e configuration with a \u003cstrong\u003e3.15in (Approx. 80mm)\u003c\/strong\u003e mounting footprint. Balmar calls this the Hitachi-style mount, typical for Yanmar, Westerbeke, Lehman and Perkins-Sabre engines. It is not the 4in J-180-style mount, so check your engine bracket before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Output 24V 70A Rating:\u003c\/strong\u003e Delivers substantial charging current to quickly replenish depleted 24V auxiliary and starting battery banks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolated Ground (IsoGrd) Protection:\u003c\/strong\u003e Helps prevent stray current corrosion and electrolysis in marine hulls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.15in (Approx. 80mm) Saddle Mount:\u003c\/strong\u003e Hitachi-style dual-foot mount, typical for Yanmar, Westerbeke, Lehman and Perkins-Sabre engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomisable Drive Interface:\u003c\/strong\u003e Supplied without a pulley to suit 17mm bore pulleys, allowing exact matching to your engine's specific belt profile and drive ratio.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Fan Cooling:\u003c\/strong\u003e Compact, small-case 6-Series design with dual fan cooling and a high airflow frame.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Exclusion: Pulley Sold Separately\u003c\/h3\u003e\n\u003cp\u003ePlease note that this alternator is supplied with \u003cstrong\u003eno pulley included\u003c\/strong\u003e. Because marine engines use varying belt configurations, supplying the unit bare allows you to select the exact pulley required for your drive system without paying for redundant hardware. The alternator suits \u003cstrong\u003e17mm bore\u003c\/strong\u003e pulleys, including the following options:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-61-0020:\u003c\/strong\u003e Pulley, Dual V 2.7in (Approx. 68.6mm) x 1\/2in (Approx. 12.7mm) DeepV, 17mm Bore\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-61-0070:\u003c\/strong\u003e Pulley, K-6 2.45in (Approx. 62.2mm) Serpentine 6-Rib, 17mm Bore\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-1310:\u003c\/strong\u003e Pulley, K-8 2.4in (Approx. 61mm) Serpentine 8-Rib, 17mm Bore, Short (STD)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUpgrade Your 24V Charging System\u003c\/h3\u003e\n\u003cp\u003eWhether you are refitting a cruising vessel or upgrading an off-grid expedition truck, the 60 Series 24V 70A Alternator delivers isolated-ground charging in a compact package. Select your compatible 17mm bore pulley and order your 60 Series alternator today to secure dependable 24V charging performance.\u003c\/p\u003e","brand":"Balmar","offers":[{"title":"Default Title","offer_id":43631386427453,"sku":"B-60-24-70-SP","price":1306.57,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/balmar-60-series-24v-70a-alternator-b-60-24-70-sp.png?v=1792490513","url":"https:\/\/www.solar4rvs.com.au\/products\/enerdrive-b-60-24-70-sp","provider":"Solar 4 RVs","version":"1.0","type":"link"}