Battery Fuse & Holder
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Smart choice for power Installation Guide

About Xantrex Xantrex Technology Inc., is a world-leading supplier of advanced power electronics and controls with products from 50 watt mobile units to 1 MW utility-scale systems for wind, solar, batteries, fuel cells, microturbines, and backup power applications in both grid-connected and stand-alone systems. Xantrex products include inverters, battery chargers, programmable power supplies, and variable speed drives that convert, supply, control, clean, and distribute electrical power. Trademarks Trace and Xantrex are registered trademarks of Xantrex International. Notice of Copyright...

©2002 Xantrex Technology Inc. All Rights Reserved P/N 973-0019-01-02 Rev A 06/2002

List of Figures Figure 1 List of Tables Table 1 ©2002 Xantrex Technology Inc. All Rights Reserved P/N 973-0019-01-02 Rev A 06/2002

NOTE: These fuse blocks meet the National Electrical Code requirements for overcurrent protection. Xantrex offers the DC175 and DC250 in an enclosure for applications requiring NEC compliance for both overcurrent protection and a DC disconnect. The Trace™ brand fuse block (TFB) protects the power system’s DC wiring should an overcurrent condition occur. The fuse block is placed between the battery’s ungrounded conductor (usually the positive cable) and the DC input terminal of the inverter. The TFBs include a fast acting, current limiting class-T fuse providing extremely fast protection...

Installation Mounting NOTE: It is not recommended to locate the fuse block inside the enclosure with the batteries where explosive gases may exist. Locate the fuse block within 18 inches (45 cm) of the battery. It should be placed in a location where it is easily accessible should the fuse need replacing. 1. Squeeze the clear plastic protective cover and remove it from the fuse block base. Use the fuse block base as a template for location of the four mounting holes. The fuse block should be mounted to a secure surface. Allow at least 6 inches (15 cm) from the fuse contacts to allow for...

Installation (continued) Cable Installation into Fuse Block For Fuse Blocks designed for C-Type Battery Cables (TFBxxxC) 1. Strip back 1 inch (2.5 cm) of the insulation on the battery cable. Insert the cable into the terminal block (ensure all conductor strands are in the block) See Figure 3. Tighten the hex screws to 10-15 ft/lbs. Repeat Steps 2 and 3 for the connection to the other end of the fuse block. Stripped back 1 inch Figure 3 Installation for C-Type Battery Cables ©2002 Xantrex Technology Inc. All Rights Reserved P/N 973-0019-01-02 Rev A 06/2002

Installation (continued) Cable Installation into Fuse Block (continued) For Fuse Blocks designed for Ring-lugged Battery Cables (TFBxxx) A. If necessary, install the ring-lugs (not supplied) onto the battery cables. Ensure the terminal connector’s have a 3/8" diameter opening for placement over the stud connector on the fuse block. Remove the 3/8" hex nut and split washers from the fuse block. NOTE: Do not place anything between the ring-lug on the battery cable and the terminal surface. Place the cable ring lugs over the 3/8-18 bolt on the fuse block assembly and reinstall the split washer...

Installation (continued) Wiring TFBs to the Battery, DC Disconnect, and Inverter TFB FUSE BLOCK FOR C-TYPE BATTERY CABLES *DC DISCONNECT MAY NOT BE REQUIRED IN ALL APPLICATIONS TFB FUSE BLOCK FOR RING-LUGGED BATTERY CABLES *DC DISCONNECT *DC DISCONNECT MAY NOT BE REQUIRED IN ALL APPLICATIONS Figure 5 Wiring TFBs to the Battery, DC Disconnect, and Inverter ©2002 Xantrex Technology Inc. All Rights Reserved P/N 973-0019-01-02 Rev A 06/2002

Care and Maintenance Fuse Replacement WARNING: BEFORE REPLACING THE FUSE, DISCONNECT ALL POWER SOURCES AND TURN OFF ALL LOADS. Before replacing the fuse, determine and correct the cause of the overcurrent condition. Remove the open fuse and replace it with a known good one. Reinstall the hardware as it was originally stacked on the fuse. NOTE: Fuses are NOT covered under the limited warranty. Use a hex socket and remove the two nuts (and split washers) securing the fuse. Note the hardware installed and the order of how it is stacked. This is important to prevent excess heat which can cause...

Care and Maintenance (continued) Replacement Fuses WARNING: REPLACE FUSE WITH ONLY THE SAME TYPE (CLASS T) AND RATING (AMPERAGE/ VOLTAGE). Replacement fuses are available from Xantrex Technology Inc. These fuses fit either the TFBxxx or TFBxxxC models (of the same rating only). See Table 2 for part numbers for replacement fuses. NOTE: The temperature rating of the cable sizes specified in Table 2 are 75 °C in free-air based on an ambient air temperature of 30 °C (86 °F). Replacement Fuse Cable Size Table 2 Replacement Fuses and Cable Sizes ©2002 Xantrex Technology Inc. All Rights Reserved...

Limited Warranty What does this warranty cover and how long does it last? NOTE: Fuses are NOT covered under the limited warranty. This Limited Warranty is provided by Xantrex Technology, Inc. (“Xantrex”) and covers defects in workmanship and materials in your Fuse Block. This warranty lasts for a Warranty Period of two years from the date of purchase at point of sale to you, the original end user customer. What will Xantrex do? Xantrex will, at its option, repair or replace the defective product free of charge, provided that you notify Xantrex of the product defect within the Warranty...

Limited Warranty (continued) How do you get service? If your product requires troubleshooting or warranty service, contact your merchant. If you are unable to contact your merchant, or the merchant is unable to provide service, contact Xantrex directly at: Phone: Fax: Email: Direct returns may be performed according to the Xantrex Return Material Authorization Policy described in your product manual. For some products, Xantrex maintains a network of regional Authorized Service Centers. Call Xantrex or check our website to see if your product can be repaired at one of these facilities. In...