Balmar 24V 90A XT Series Alternator, 3.15in Saddle Mount (No Pulley)

High-Output 24V Charging for Marine and Off-Grid Power Systems

The XT Series 90A 24V Alternator is engineered to meet the demanding electrical requirements of modern marine vessels and off-grid auxiliary battery banks. Standard factory alternators are typically designed to maintain a single starter battery and often suffer from severe voltage drop or thermal failure when subjected to the prolonged, heavy load of charging deep-cycle house banks. The XT Series resolves this issue by providing robust charging capability for high-demand 24V DC electrical systems.

Rigid Dual Foot Saddle Mounting

Mechanical stability is vital in high-vibration engine bays and marine propulsion rooms. This alternator features a robust Hitachi-style 3.15in (approx. 80mm) dual foot saddle mount. The dual foot design spreads mounting loads across the engine bracket to help maintain belt alignment.

Key Features and Benefits

• Dedicated 24V 90A Output: Delivers substantial charging amperage to efficiently replenish large 24V house battery banks, reducing engine or generator run-time.
• 3.15in (Approx. 80mm) Dual Foot Mount: Ensures secure, vibration-resistant attachment to compatible 3.15in saddle brackets.
• Customisable Drive Interface: Supplied without a pulley (17mm shaft bore), allowing you to match the exact belt profile and drive ratio of your engine.
• Dual-Fan Cooling: A high-airflow frame with dual fans helps manage heat during deep-cycle and lithium battery charging.
• Upgrade Over Standard Units: Mitigates the risk of thermal overload and premature component failure during bulk charging phases.

Important Exclusion: Pulley Sold Separately

To ensure seamless integration with various engine drive configurations, this alternator is supplied without a pulley. This allows system builders and marine electricians to select the precise drive profile required for their specific belt setup, eliminating the need to remove and discard an incompatible pre-installed pulley.

Compatible 17mm Bore Pulley Options:

• B-61-0020: Pulley, Dual V 2.7in (approx. 68.6mm) x 1/2in (approx. 12.7mm) DeepV, 17mm Bore
• B-61-0070: Pulley, K-6 2.45in (approx. 62.2mm) Serpentine 6-Rib, 17mm Bore
• B-1310: Pulley, K-8 2.4in (approx. 61mm) Serpentine 8-Rib, 17mm Bore, Short (STD)

Built for Reliable Energy Autonomy

When paired with appropriate regulation and the correct pulley for your engine, the XT Series 90A 24V alternator reduces the risk of undercharged batteries and electrical system downtime. It is an ideal solution for upgrading auxiliary charging systems in cruising yachts and expedition vehicles operating on 24V DC systems.

Configure Your Charging System

Select the compatible 17mm bore pulley from the options above to match your engine belt profile and add the XT Series 90A 24V Alternator to your system build today.