User Manual - Arc Suppression Technologies
Contents
1. CONTACT INFORMATION ccoo Page 2 of 9 NOsparc MHXDC Arc Suppressor User Manual ARC SUPPRESSION TECHNOLOGIES IMPORTANT NOTES This document provides information required to install a NOsparc arc suppressor You must read and understand this document before installing this device If you have any problems with your installation please refer to Technical Support contact information on the last page of this manual TRADEMARKS e NOsparc and the flame logo are trademarks of Arc Suppression Technologies LLC e UL is a trademark of Underwriters Laboratories Inc All trademarks are property of their respective owners APPLICABLE DOCUMENTS TBD The above mark indicates that Underwriters Laboratories inc has certified the NOsparc MHXAC as a UL Recognized Component for both Canada and the United States LIFE SUPPORT Arc Suppression Technologies products are specifically NOT authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Arc Suppression Technologies As used herein A Life support devices or systems are devices or systems which support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user B A critical component is any component in a life Supp2. Device designed to limit voltage rise times NOT PROVIDED accepting a 6 screw to each side of the suppression Action of minimization of undesired event single arc suppressor or stacked arc Suppressors Varistor Clamping Voltage n Voltage at which steady state current through the arc suppressor is gt 1mA Maximum Varistor AC Voltage Maximum allowed voltage across the arc suppressor NOT operating voltage Page 8 of 9 ARC SUPPRESSION TECHNOLOGIES WARRANTY Please contact your distributor or sales representative for warranty information TECHNICAL SUPPORT Please contact your distributor or sales representative with technical support and product support questions Have the following information available when contacting your representative e Model Number e Serial Number In certain circumstances direct product support from Arc Suppression Technologies may be reached via the following communication methods e support ArcSuppressionTechnologies com e htto arcsuppressiontechnologies com Support asox e 612 928 5546 CONTACT INFORMATION NOsparc MHXDC Arc Suppressor User Manual CONDITIONS FOR SERVICE In the event of a product malfunction Arc Suppression Technologies or an authorized agent should perform all repairs to a NOsparc MHXAC unit It is the responsibility of users requiring service to report the need for service to their distributor or sales representative Any c
3. 8 F to 257 F humidity 5 to 95 non condensing INTERFACE WIRES across contacts two 2 W1 W2 non polarized orientation any MOUNTING number of holes two 2 hole diameter 0 150in 6 screw 3 81mm vs rome wire length Oin to 12in 16AWG wire length between Nosparc and contact terminals wire length 12in to 24in 14AWG wire length between Nosparc and contact terminals wire length 24in to 36in 12AWG wire length between Nosparc and contact terminals NOTE Wire lengths over 3 feet are NOT recommended NOsparc PART NUMBER DESIGNATIONS Part Number NOsparc MHXDC1F048 M H X D C 1 F Lo 4 8 Maximum Circuit Power Type Poles Connector Voltage Fuse Rating X panel mount AC AC power 1 1 phase F quick 048 48V MH 50A connect 036 36V 024 24V 012 12V Page 7 of 9 ARC SUPPRESSION TECHNOLOGIES NOsparc MHXDC Arc Suppressor User Manual CASE SPECIFICATIONS AND MOUNTING DEFINITIONS CASE DIMENSIONS Arc Current Plasma flow supported between open contacts Arc Suppression Duration o i Time during which the electrical current contact arc is arrested Arc Suppressor Device designed to reduce contact arcing Break n c Action of a contact which transitions from are close to open A BOUNCE nccc One or more brief transition s to the OPEN gt si lt state as the contact is closing orto the E i gt CLOSE state as the contact
4. ARC TECHNOLOGIES NOsparc MHXDC1F012 MHXDC1F024 MHXDC1F036 MHXDC1F048 PATENTS PENDING Arc Suppressor Arc Suppression for DC Power Relays Contactors and Snap Action Switches User Manual 104 0023D ARC SUPPRESSION TECHNOLOGIES 2013 Arc Suppression Technologies LLC All rights reserved TABLE OF CONTENTS IMPORTANT NOTES cee e TRADEMARKS e APPLICABLE DOCUMENTS SAFETY INFORMATION OVERVIEW e LIFE SUPPORT e LEGAL NOTICE e WARNINGS e CAUTIONS e SAFETY e NOTES PRODUCT DESC RIP TION coso ct eS sica idea e BACKGROUND e CHARACTERISTICS e ARC SUPPRESSION AND CONTACT PROTECTION e RELAY END OF LIFE EOL SS es VU Lad Nc astas dai ds e DO NOT HOOK UP NOsparc ACROSS THE LOAD POWER OR COIL SFEGIRICA TON Stands e ARC CURRENTS e ARC SUPPRESSION e CIRCUITS POLES e CIRCUIT FUSE RATING e CLAMPING VOLTAGE e CONTACT CYCLING e DIMENSIONS e ENVIRONMENTAL e INTERFACE WIRES e LEAKAGE CURRENT e MOUNTING e OPERATING VOLTAGE e POWER ON e POWER TYPE e RELIABILITY e TERMINATION e TERMINATION MATE e WEIGHT e WIRE GAUGE NOspare Oy PARTINUMBER DESIG NATIONS cons ASA ia CASE SEECIPIGATONS ANO MOUNT Esas ea a aa e a dco nits cinta de nua aa a enone aa a aa e CASE DIMENSIONS e PANEL MOUNTING DEFINITCONS raibet aa WARRANTY uria TECHNICAL SUPPORT aicuiretn tert CONDITIONS FOR SERVICE RETURN POLICY casacas RETURN MATERIAL AUTO RIZALION AND PROCESS ua A AS
5. gs or specifications DO NOT operate the contacts to which the NOsparc MHXDC arc suppressor is attached above or below their ratings or specifications PRODUCT DESCRIPTION NOsparc MHXDC arc suppressor products DC power applications are a family of two terminal contact arc Suppressors that attach across the contact points of a power relay contactor or snap action switch The products are designed to protect the contact points from premature destruction due to contact current arcing BACKGROUND Electromechanical power relays contactors or snap action switches operating without load current may have potential mechanical lifetimes of 10M 20M or even more operations cycles This mechanical lifespan however is reduced to as few as 5 000 operations to perhaps 100 000 operations depending on application and specifications when the under power This is mainly caused by the deleterious effects of load current arcing across the contacts as they break or bounce Page 4 of 9 ARC SUPPRESSION TECHNOLOGIES The arcing across the contacts is literally a small lightning bolt as shown below Left Relay contacts at rest Right Electrical contact current arc across the contact points of the same relay Pictures 2011 Arc Suppression Technologies all rights reserved ARC SUPPRESSION AND CONTACT PROTECTION NOsparc MHXDC arc suppressor detects the nascent arc as it forms and suppresses its energy all within about 5u
6. is granted under this document If any part of this document refers to any third party products or services it shall not be deemed a license grant by Arc Suppression Technologies for the use of such third party products or services or any intellectual property contained herein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein Arc Suppression Technologies only accepts products for repair or return that are accompanied by a Return Material Authorization number from the appropriate distributor or sales representative Please refer to your original purchase agreement or contact your distributor or sales representative for return policy information SAFETY INFORMATION OVERVIEW We use note caution and warning symbols throughout this book to draw your attention to important operational and safety information WARNING describes an alert with information that is important for protecting personnel and equipment from damage CAUTION describes any condition that could result in damage to the equipment or result in physical harm to personnel The SAFETY alert symbol an exclamation mark in a AN triangle precedes a general CAUTION or WARNING CAUTION or statement lt describes safety requirements to meet WARNING local national and international standards l The electrical hazard symbol a lightning bolt in a triang
7. is opening n A sik o a Z a 1 A Break Current Contact current during Break 2 380 l ce y 7 7 Ey S GY ClO TIME assess Time between successive ON or OFF contact gt states amp gt j NEP Inductive Load Motor or transformer form the main part of the load 0 150 Inrush Current Resulting turn on current when powering an a 0 150 inductive capacitive or tungsten load Inrush Current Limiter wo Device intended to limit the amount of turn on current when powering an inductive Capacitive or tungsten load PANEL MOUNTING For ease of installation NOsparc MHXAC units may be stacked up to three 3 units high by threading a 6 screw through the mounting holes in the flanges of each unit as shown below Make naice Action of a contact which transitions from A open to close i i Make Current Contact current during Make 2 j LATAS Mr ta FT Ty WOW ae pros Metal Oxide Varistor e e 0 i Stern NA MTEF cascececcceatvaueceae Mean Time Between Failures et BR M maihi eT LAA QD o Power On N l Passthrough Current passing through the arc suppressor gt during initial power up RC Snubber Device with resistor and capacitor in series DIN RAIL MOUNTING across contact DIN rail mounting of either single of stacked arc suppressors can o o be accomplished by adding a single DIN rail mounting adaptor SNUDDE uscar
8. le precedes an electric shock hazard It describes a potential electrical shock hazard which Electrical Shock can result in personal injury or death Hazard CAUTION or NOTE describes any item of interest to the user WARNING owner or operator Page 3 of 9 ARC SUPPRESSION TECHNOLOGIES WARNINGS Follow extreme caution when applying NOsparc MHXDC arc suppressor to trio and close contacts or in circuits containing elements that can be energized by a 1 2 power cycle pulse This User Manual must be thoroughly understood and accurately followed to avoid unintended equipment operation The assembly must conform to National Electric Code NEC safety standards as well as locally applicable codes Failure to do so could result in personal injury or loss of life See the product rating curve for wire gauge selection ambient temperature and current restrictions Follow extreme caution when conducting short cycle time tests especially below the maximum rated cycle time for the associated relay typically 3s Even at significantly reduced power levels through the contacts the relay contacts can become extremely hot due to contact arcing and pose a fire danger ALWAYS FOLLOW THE RELAY MANUFACTURERS SPECIFICATIONS AND REQUIREMENTS Standard relays typically have a maximum short period cycle time of 1200 cycles per hour Only authorized and qualified personnel should install and service the NOsparc MHXDC arc
9. of wire length One foot or less of wire length is ideal lengths over 3 feet are not between NOsparc MHXDC arc suppressor terminals and the recommended If longer cable lengths are needed then the wire contact terminals NOsparc Simple Hook Up Diagram NOsparc Direct Current DC System Wiring Diagram Circuit Breaker O O 0 e Plus or Minus Fuse 188Amp Maximum Main Shut Off Switch Fuse and Breaker Rating Thermal Limit Shut Off 3 AC Power Load Thermal Limiter NOsparc Process Control Imput s gt Controller Thermal Limit Thermocouple O Minus or Plus DO NOT HOOK UP NOsparc ACROSS THE LOAD POWER OR COIL NOsparc will be damaged if connected across the following locations There is NO arcing at these locations DO NOT Hook Up NOsparc DO NOT Hook Up NOsparc DO NOT Hook Up NOsparc Across the Load Across the Power Across the Coil 3 NOsparc r Page 6 of 9 ARC SUPPRESSION TECHNOLOGIES NOsparc MHXDC Arc Suppressor User Manual SPECIFICATIONS NOsparc MODEL MHXDC1F012 MHXDC1F024 MGXDC1F036 MFEXDC1F048 ARC CURRENTS break steady late make inrush CONTACT CYCLING maximum cycle time per relay specifications DO NOT EXCEED relay operating specifications length 2 380in 6 045cm width 1 070in 2 718cm height 0 740in 1 880cm operating temperature 40 C to 85 C 40 F to 185 F ENVIRONMENTAL storage temperature 50 C to 125 C 5
10. omponents devices or other equipment used with or adjacent to a NOsparc MHXAC device is the sole responsibility of the end user and not of Arc Suppression Technologies or any of its agents resellers representatives or distributors RETURN MATERIAL AUTHORIZATION AND PROCESS Authorization prior to returning product is required Please refer to your original purchase agreement or contact your distributor or sales representative for an RMA number and instructions before returning product NOTE Terms and conditions vary by distributor and representative Please refer questions to your distributor or sales representative ARC SUPPRESSION T TECHNOLOGIES 7900 INTERNATIONAL DRIVE SUITE 300 BLOOMINGTON MN 55425 612 928 5546 www ArcSuppression lechnologies com Your Comments We welcome your comments or suggestions on this User s Manual Page 9 of 9
11. ort device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness LEGAL NOTICE Information in this document is believed to be accurate and is provided solely in connection with Arc Suppression Technologies products NOsparc MHXDC Arc Suppressor User Manual Arc Suppression Technologies makes no warranties expressed or implied regarding the information contained herein Arc Suppression Technologies assumes no liability for errors and omissions that may occur in this document Arc Suppression Technologies reserves the right to make changes corrections modifications or improvements to this document and the product described herein at any time without notice This product is sold pursuant to Arc Suppression Technologies terms and conditions of sale Arc Suppression Technologies assumes no liability otherwise arising from the application or use of any such information or product for any infringement of patents or other intellectual property rights owned by others which may result from such application or use Purchasers are solely responsible for the choice selection and use of the product described herein and Arc Suppression Technologies assumes no liability whatsoever relating to the choice selection or use of this product No license expressed or implied by estoppel or otherwise to any intellectual property rights
12. pressor must never be connected across relay contactor or snap action switch contacts driving high impedance loads NOsparc MHXDC Arc Suppressor User Manual e The NOsparc MHXDC arc suppressor must never be connected across relay contactor or snap action switch contacts used for galvanic safety isolation Proper care must be taken when handling and installing NOsparc MHXDC arc suppressor Never plug or unplug NOsparc MHXDC arc suppressor while powered Do not connect NOsparc MHXDC arc suppressor directly to power Use caution when installing or modifying power connections NOTES Connect NOsparc MHXDC arc suppressor across the power switching relay contactor or snap action switch contacts only NOsparc MHXDC arc suppressor capabilities will be fully effective even under mixed load conditions NOsparc arc suppressor has been designed to support the following DC power loads e General Purpose e Resistive e Motor e Tungsten e Capacitive e Inductive DO NOT use NOsparc MHXDC arc suppressor for AC power applications DO NOT use NOsparc MHXDC arc suppressor under the following power conditions e Non sinusoidal power circuits e Phase controlled power circuits DO NOT connect NOsparc MHXDC arc suppressor across the following components e Fuses e Circuit breakers e Safety interlocks e Thermal limits DO NOT use NOsparc MHXDC arc suppressor either above or below its ratin
13. s 5 millionths of a second The result is a low energy arclet with arc energy of only a few uJ as opposed to a full contact arc that is hundreds of mJ or more This allows an arc suppression factor to be calculated from the difference in energy More information is available in lab notes and application notes on our website ADD HOW DOES IT WORK Please note that this residual arclet is important as it both burns through the protective thin film coating during initial operation and subsequently cleans of the contact surfaces during normal relay operation The effects of the destructive power of arcing is depicted in the pictures below NOsparc MHXDC Arc Suppressor User Manual CHARACTERISTICS NOsparc MHXDC arc suppressor extends contact life without requiring any external control wires power wires or any other wires other than the two contact terminal wires that are used to connect the device to the associated power relay contactor or snap action switch NOsparc MHXDC arc suppressor requires only two wires to monitor the contact status in order to suppress the contact current arc in the instant when the contact transitions from close to open state RELAY END OF LIFE EOL Every relay has a finite operating lifetime For example If a power relay with a 100 000 cycle electrical life is operated once every minute 60s it will reach its EOL in a mere 69 days NOsparc MHXDC arc suppressor e
14. suppressor Failure to comply with these recommendations may result in damage to equipment and property and injury to personnel Always test the function and performance of NOsparc MHXDC arc suppressor in the intended application An arc suppressor DOES NOT eliminate arcing therefore use of the NOsparc MHXDC arc suppressor will not eliminate hazards associated with electrical current contact arcing SAFETY All creepage distances and clearances of NOsparc MHXDC arc suppressor have been designed to meet requirements of safety standards When using NOsparc MHXDC arc suppressor basic safety precautions should always be followed to reduce risk of fire electric shock and injury to persons When installing NOsparc arc suppressor into your system make sure that the Quick Connect Terminal connector is properly crimped terminated insulated and that the proper wire gauge is used and that the connector is securely seated Incorrect application or termination can result in harmful or fatal electrical shock or component damage CAUTIONS The NOsparc MHXDC arc suppressor will pass a leakage Current See specifications even though the contacts across which it is connected are open similar to leakage present with snubber use This capacitive leakage current can be sufficient to turn on some solid state and electromechanical relays or to cause electric shock to personnel Therefore e The NOsparc MHXDC arc sup
15. xtends the inevitable end of life of contacts by a factor of 100 times or more under normal specified operating conditions please refer to the relay contactor or snap action switch specifications The natural end of life EOL is failure in one of the following three modes 1 Contact fails closed 2 Contact fails open 3 Contact fails with resistance This inevitable EOL can be extended out even further with the proper use of a NOsparc MHXDC arc suppressor Contact A Contact B Without Arc Suppression gt Po A a Unused Contacts With Arc Suppression Arc Suppressor Page 5 of 9 ARC SUPPRESSION TECHNOLOGIES NOsparc MHXDC Arc Suppressor User Manual SYSTEM WIRING gauge must be increased according to the following l recommendation NOsparc MHXDC arc suppressor has two male quick connect terminal which must mate with two properly crimped female quick connect terminals e 16AWG minimum for less than 0 to 12 of wire length between NOsparc MHXDC arc suppressor terminals and the contact terminals In order to provide effective arc suppression the two wires e 14AWG minimum for less than 12 to 24 of wire length between NOsparc MHXDC arc suppressor and the relay between NOsparc MHXDC arc suppressor terminals and the contactor or snap action switch contact terminals should be as contact terminals short as possible p e 12AWG minimum for less than 24 to 36
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