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TMOV34S331MP Datasheet(PDF) 6 Page - Littelfuse |
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TMOV34S331MP Datasheet(HTML) 6 Page - Littelfuse |
6 / 8 page Varistor Products ©2012 Littelfuse, Inc. Revision: July 5, 2012 TMOV®34S Varistor Series Industrial High Energy Thermally Protected Varistors > TMOV ®34S Series Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/tmov34s.html for current information. R LED Line Fuse TMOV34S “M” Varistor Neutral Line 1 2 3 3 2 1 Thermal Fuse Element MOV Thermal Fuse Element MOV Monitor Lead Monitor Lead Lead Configurations TMOV®34S "E" 2-Lead Varistor TMOV®34S Varistor Application Examples The application examples below show how the monitor lead on the TMOV®34S can be used to indicate that the thermal element has been opened. This signifies that the circuit is no longer protected from transients by the MOV. Application Example 1 thermal element opens. Application Example 2 This circuit utilizes an optocoupler to provide galvanic isolations between the TMOV®34S varistor and the indicating or alarm circuitry. Application Example 3 This circuit illustrates the use of the monitoring lead of the TMOV®34S varistor to ensure that equipment is only operation the load switch relay solenoid is powered via the monitor lead of the TMOV® illuminate. R Line Fuse Neutral AC OPTOCOUPLER TO STATUS ANNUNCIATOR LIGHT/ALARM Line TMOV34S “M” Varistor Line Fuse Neutral Fault LED (Normallyoff) "Load Powered" neon lamp Load Switch Relay (loss of protection) R Line TMOV34S “M” Varistor guideline only. Verification of actual indicator circuitry is the responsibility of the end user. Component values selected must be appropriate for the specific AC line voltage service and application. TMOV®34S "M" 3-Lead Varistor |
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