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GroundMetal Oxide Varistor (MOV)M5 screw (spring loaded)Lightning SurgeBreaker OperationCONNECTION EXAMPLESSingle-phase / 2-wire connectionSingle-phase / 3-wire, three-phase / 3-wire connectionCross-wiringGroundingProtected DeviceGProtected DeviceCross-wiringGroundingGThe alarm output switch is turned on.321The green failure indicator turns to black at the same time.When the low temperature-melting solder is melted by an abnormal high temperature at the discharge element, the lever mechanism is released by the force of spring to separate the discharge element from the circuit.CONNECTION DIAGRAM & GROUNDING (MD6T) MD6TFieldGTo Central StationCableG(Protected Equipment Enclosure)INCurrent LoopSupplyCentral Station(ProtectedEquiment)++––P–P+S–S+GMDP-24-1MDP-65-1GSensor+–+–ProtectedEquipment12yellowbluegreenCONNECTION DIAGRAM & GROUNDING (MD6N) MD6NFieldTo Central StationCableG(Protected Equipment Enclosure)INCurrent LoopSupplyCentral Station(ProtectedEquiment)+–P–P+S–S+GMDP-24-1MDP-65-1GSensorProtectedEquipmentyellowredblueblackgreenG+–+–+–MD6TMD6NMD6PLeadwire Connection, Pipe Nipple TypeLeadwire Connection, Stopping Plug TypeTerminal Block Connection Type13• Designed to protect electronics equipment from induced lightning surges en-tering through power supply cables• Connected in parallel between the power and ground lines regardless of load current• Varistor discharge element has a high speed response without follow current.• No interruption of power supply even when the head element is removed: easy maintenance and replacing• Degraded head element is automatically separated from the power lines to prevent overheating, with a relay contact output to alert the failure status.• Head-base connection is keyed so that only a head element of correct line voltage can be mounted.One-Port Surge Protector For Power Supply UseLightning Surge Protector For Standard Signal Line & Pulse Use• D e s i g n e d s p e c i f i c a l l y f o r 4 - 2 0 m A D C a n d p u l s e s i g n a l l i n e i n c l u d i n g b o t h 4 - w i r e a n d 2 - w i r e t r a n s m i t t e r s • D i r e c t m o u n t i n a w i r i n g c o n d u i t o f o u t d o o r e n c l o s u r e s • A b s o r b i n g s u r g e s o n l y w i t h o u t a f f e c t i n g i n s t r u m e n t a t i o n s i g n a lSeriesSURGE CURRENT FLOW (cross section)THERMAL BREAKER (cross section)

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