Balmar XT-SF alternator KIT -12/24V – 90/170/250A

The Balmar XT-SF Alternator Kit provides a complete, high-performance charging solution for marine engines utilising a 1″ or 2″ Single Foot (Motorola/Delco style) mounting configuration. By combining the industry-leading XT-Series alternator with Balmar’s legendary “smart” regulation, this kit transforms your engine into a powerful charging station, perfect for large battery banks and power-hungry house loads.

The Complete Charging System

Achieving high-output charging requires more than just a powerful alternator; it requires precision control and safety monitoring. This kit includes all the essential components for a professional-grade “smart” charging installation:

• Balmar XT-SF High-Output Alternator: The latest in small-case design, featuring a braided stator for maximum efficiency and power at idle.
• MC-618 (12V) or MC-624 (24V) Digital Regulator: Advanced “smart” regulators that manage the charging process to protect your batteries and ensure they reach 100% charge as quickly as possible.
• Alternator & Battery Temperature Sensors: These sensors allow the regulator to automatically adjust or reduce output based on temperature, protecting your alternator from burnout and your batteries from overcharging.
• Wiring Harnesses: High-quality, marine-grade harnesses with built-in fusing for a secure and simplified setup.

Why Choose the XT-SF Kit?

• Universal Single Foot Compatibility: The “Single Foot” (SF) mount is found on a wide variety of marine engines, including many models from Volvo Penta, Perkins, and early Yanmar. The XT-SF is designed to be a high-power, direct-fit replacement for these applications.
• Lithium (LiFePO4) Ready: Modern Lithium batteries can take all the current an alternator can give, which can lead to overheating. This kit is specifically designed for Lithium banks; the included digital regulator features a dedicated Lithium profile, and the temperature sensors ensure the system stays within safe operating limits.
• Industry-Leading Idle Output: The XT-Series is engineered to provide superior charging power at low engine RPMs. While standard alternators often struggle to keep up with house loads at idle, the XT-SF delivers substantial current the moment you start your engine, reducing the need for long charging runs.

Kit Components

• Balmar XT-Series Alternator (90A, 170A, or 250A)
• MC-618 or MC-624 Digital Multi-Stage Regulator
• MC-TS-A Alternator Temperature Sensor
• MC-TS-B Battery Temperature Sensor
• Wiring Harness
• Comprehensive Instruction Manual

Technical Specifications

• Voltage: 12V or 24V
• Amperage Options: 90A (24V), 170A (12V), or 250A (12V)
• Mounting: 1″ or 2″ Single Foot (Motorola/Delco Style)
• Case Ground
• Internal 14.1V Backup Regulator (SmartReady® technology)
• Pulley Requirement: Requires a Serpentine (Multi-Groove) or Dual-Vee belt system.

Installation Tip:

• High-output alternators place significant mechanical stress on your engine belts. To ensure maximum performance and prevent belt dust/slippage, we strongly recommend a Balmar AltMount® Serpentine Pulley Conversion Kit.
• A Tachometer Signal Stabilizer (Part No. 15-TSS) may be required if your current tachometer is not adjustable.

Country of Manufacture: USA

Brand

Balmar

Balmar has been serving the Recreational Marine Industry for over 30 years. We supply DC Charging Products and Battery Monitors to help sailors and power boaters charge and monitor their batteries more efficiently.