WHITE PAPER - Littelfuse

MOTOR PROTECTION TABLES - Circuit Protection, …

2014 l por-ar ® p 2 motor protection guide motor protection tables motor s.f. = 1.15 or hp full load amps without overload relays with overload relays switch or s.f. = less

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WHITE PAPER - Littelfuse

TRANSFORMER PROTECTION WHITE PAPER The Importance of Effective Transformer and Control Transformer Protection

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Application : Transient oltage uppressors (TVS iode ...

e: Transient oltage upressors (T iode pplications verview Litteluseco 2 © 2015 Littelfuse, Inc. Device Type Vulnerability (volts) VMOS 30-1800 MOSFET 100-200 GaAsFET ...

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TMOV and iTMOV Varistor Series oHS - …

© 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 Metal-Oxide Varistors (MOVs) Radial Lead Varistors …

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Light-Emitting Diode (LED) Design Guide - Littelfuse

Light-Emitting Diode (LED) Design Guide Table of Contents Page Introduction 3-4 Safety and Reliability of LED Bulbs 5-7 Surge Immunity Requirements for Consumer LED Lighting/ Retrofit Lamps 8-10 Part Selection Matrix for LED Lamp Protection 11 ... duration of the test …

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Light-Emitting Diode (LED) Design Guide

Constant Current LED String Driver LEDs Iso / Step Down Osc. A fuse with adequate I2T rating is necessary to pass Energy Star ring-wave tests according to IEEE C.62.41 A metal oxide varistor (MOV) can help protect the LED bulb from overvoltage surges …

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Selection Guide Fuse Characteristics, Terms and ...

Typical PTC Circuit Protection Designs 11 Standards 12–14 PTC Selection Worksheet 15 Fuse and PTC Products Selection Guide 16–18 Packaging and Part Numbering 19 Legal Disclaimers 20 About this guide Fuses are current-sensitive devices that provide reliable protection for discrete components or circuits by melting under current overload ...

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Automotive Circuit Protection using Littelfuse Automotive ...

1.0 Mbits/s @ 40 meters 125 kbits/s @ 500 meters Cable Twisted or parallel pair wires, shielded or unshielded cable Termination Resistance 120 W resistors located at each end of the bus Min/Max Bus Voltage 12 V System: –3.0/+16 V

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SM712 Series 600W Asymmetrical TVS Diode Array RoHS …

lead-free • ESD, IEC 61000-4-2, ±30kV contact, ±30kV air ... • Communication Equipments Pinout and Functional Block Diagram Life Support Note: ... Capacitance vs. Reverse Bias 0 10 20 30 40 50 60 70 02468 10 12 80 Bias Voltage (V) Capacitance (pF) Clamping Voltage vs. I PP 0 5 10 15 20 25 30 35

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MOTOR PROTECTION TABLES - Littelfuse

ampere rating motor running protection (used without properly sized overload relays) motor full-load amps back-up motor running protection (used with properly sized overload relays) motor full-load amps motor service factor of 1.15 or greater or with temp. rise not over 40°c. motor service factor less than 1.15 or

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Evaluation of Transformer Solid Insulation - satcs.co.za

Evaluation of Transformer Solid Insulation By I.A.R. Gray Transformer Chemistry Services Direct Evaluation The mechanical properties of insulating paper can be established by direct measurement of its tensile strength or degree of

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EDS / EFS Series Cl. I, Div. 1 & 2, Groups B*, C, D ...

www.crouse-hinds.com US: 1-866-764-5454 CAN: 1-800-265-0502 Copyright© 2016 Eaton 4C EDS / EFS Series Control Stations Fully Assembled EFS and EDS Factory Sealed Devices

Random Number Generation C++

Random Number Generation C++ It is often useful to generate random numbers to produce simulations or games (or homework problems :) One way to generate these numbers in …

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Cross-lingual Language Model Pretraining

Cross-lingual Language Model Pretraining Guillaume Lample Facebook AI Research Sorbonne Universit´es glample@fb.com Alexis Conneau Facebook AI Research

ELECTRIC SYSTEM BULLETIN No. 754/759 - National Grid

supplement to specifications for electrical installations outdoor padmounted or vault enclosed three phase transformer electric system bulletin no. 754/759

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