POWR-BLOK Modules TM Powr-Blok Modules: Introduction 1 Fuse Modules 2 2-Position ATO Style Fuse and Circuit Breaker Module 2 4-Position ATO Style Fuse and Circuit Breaker Module 2 7-Position ATO Style Fuse and Circuit Breaker Module 3 4-Position MINI Style Fuse Module 3 6-Position MINI Style Fuse Module 4 8-Position MINI Style Fuse Module 4 2-Position MAXI Style Fuse Module 5 4-Position MAXI Style Fuse Module 5 Relay Modules 6 1-Position ISO Relay Module 6 2-Position ISO Relay Module 6 3-Position Micro Relay Module 7 1-Position 9 Pin Relay Module 7 2-Position 280 Micro Relay + 2 Position MINI Style Fuse 8 1-Position Power Relay Module 8 2-Pin Flasher Module 9 Specialty Modules 10 Blank Module 10 2-Position Blank Module 10 Power Tap Module 11 2-Stud Assembly Module 11 4-Stud Assembly Module 12 2-Position Push Button Circuit Breaker Module 12 Storage Module/Drawer Insert 13 Splash Proof Cover for: 4-Position MINI Fuse Module 13 Assembly/Mounting Accessories 14 Assembly AccessoriesBLOK-LOKS 14 Mounting AccessoriesMounting Standoffs 14 Mounting AccessoriesMounting Module 15 Mounting Leg 15 Mounting AccessoriesFlush Mounting Leg 16 Side Mounting Bracket 16 Terminals 17-21 Starter Terminals 22 Terminal Loks 23 www.littelfuse.com A 2012 Littelfuse Transportation Products Catalog ExcerptPower Distribution Centers POWR-BLOK MODULES Description How to use the Littelfuse The Littelfuse POWR-BLOKS system gives you unlimited POWR-BLOKS system flexibility to design electrical distribution systems. Its a totally modular way to build your own junction box. POWR-BLOKS are 1. Identify the electrical system parameters perfect for applications where space or vehicle function demand a - Space availability and requirements tailor made approach. The Littelfuse POWR-BLOKS can be - Circuit protection components modified, re-sized, reconfigured or added to at any time. - Relay and flasher components - Components for special needs 2. Select the Littelfuse POWR-BLOKS components. Lay out the electrical panel as designed. Then determine the appropriate type and quantity of POWR-BLOKS modules, BLOCK LOKS and TERMINAL LOKS you need. 3. Build the panel by row. POWR-BLOKS can be assembled without special tools. Assemble the block from the rear by placing all modules face down on a flat surface. POWR-BLOKS should be designed by row, either going across or up and down. 4. Use BLOK LOKS to interconnect modules. BLOK LOKS are used to connect and stack POWR-BLOKS modules. Press together a row of modules and insert green BLOK LOKS until they snap into place. Repeat this procedure to interlock all assembled rows. 5. Add mounting modules. Once a POWR-BLOKS panel is Mechanical Strength for Any Application assembled, add mounting modules that are most suitable for POWR-BLOKS modules are molded from glass reinforced nylon your application. Mounting options include surface mounting for dimensional stability, excellent rigidity, high and low legs, a side mounting bracket and a mounting module with three temperature resistance and tensile strength: different sized spacers. Specifications 6. Plug in terminated wiring. Wire your POWR-BLOKS panel and Test POWR-BLOKS Standard plug in the terminated wires, then insert the optional matching Voltage Rating 48VDC TERMINAL LOKS devices. Littelfuse TERMINAL LOKS are Temperature range -40C to +125C designed to fit special POWR-BLOKS modules and inserted in the same manner as BLOK LOKS. Durability Minimum 50 cycles of engagement/ disengagement Drop 1.22 meters onto wooden platform Thermal Shock 5 Cycles from -40C to +125C The information and illustrations given in this catalogue are Mechanical Shock 50g in each of 3 mutually perpendicular axis believed to be reliable and accurate. Littelfuse makes no Fluid Compatibility Gasoline, diesel fuel, motor oil, antifreeze, warranties as to their accuracy or completeness, and disclaims any brake fluid, ATF liability in connection with their use. Littelfuses only obligations are those in the standard terms of sale for this product and Littelfuse will not be liable for any consequential or other damages *Max. Current Indication arising out of the use or misuse of this product. Littelfuse reserves The information listed as Max. current indication is to be used as a the right to make changes to the contents hereof without notice. guideline only. The maximum allowable rating of the fuses used It is suggested that at the time of inquiry Littelfuse Sales depends on design criteria such as maximum current, nominal personnel be contacted directly for verification of published current the duration for which the circuits are energized, as well as specifications and product availability. external factors as ambient temperature. All modules should therefore be tested as an assembly, and users should make their own evaluation to determine the suitability of the product for their specific applications. 2012 Littelfuse Transportation Products Catalog Excerpt 1 www.littelfuse.com