Xantrex Technology TFB200C, TFB400C, TFB350C, TFB300C, TFB110 Introduction, Tools/Materials Required

Introduction

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 when a short circuit occurs. When the fuse is properly matched to the system current, its time delay allows the inverter to surge to full power without blowing the fuse. A plastic cover prevents accidental short circuits to the fuse terminals. Fuse sizes include 110, 200, 300, 350 and 400 amps.

There are two types of fuse blocks available. The TFBxxxC fuse block has “set” screw lugs for cables with no terminal connector’s on the ends (hereto referred to as C-type battery cables). The TFBxxx fuse block has stainless steel bolt connections for cables with ring terminals (hereto referred to as ring-lugged battery cables). Both fuse blocks include a black polycarbonate, fiberglass reinforced base and a clear polycarbonate snap-on cover.

Tools/Materials Required

•4 screws (type depending on mounting material)

•5/16 inch allen wrench (for C-type fuse blocks only)

•9/16 inch socket for 3/8" hex nuts

•1/2 inch socket for 5/16" hex nuts

•assorted screwdrivers

•knife

Figure 1	Figure 1a
Fuse Block for C-type	Fuse Block for Ring-lugged
Battery Cables (TFBxxxC)	Battery Cables (TFBxxx)
©2002 Xantrex Technology Inc. All Rights Reserved	5

P/N 973-0019-01-02 Rev A 06/2002