{"product_id":"tomzn-to419g-4p-63a-manual-transfer-switch","title":"TOMZN TO419G 4P 63A Manual Transfer Switch MTS – 400V AC","description":"\u003ch2\u003e\u003cspan\u003eTOMZN TO419G 4P 63A Manual Transfer Switch – 400V AC\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eTOMZN TO419G 4P 63A Manual Transfer Switch (MTS)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is designed for manually switching between two electrical power sources in dual-power supply systems. With a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4-pole configuration, 63A rated current and 400V AC rating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, it is suitable for applications where controlled changeover between normal and standby power is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe TO419G uses a three-position \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eI–0–II\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e operating arrangement. In position I, the first power source is connected; in position II, the second power source is connected; and in the middle position, both power sources are disconnected. TOMZN documentation specifically identifies the TO419G as a 4P 400V AC manual transfer switch.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e63A rated current\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e4-pole (4P) configuration\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e400V AC rated voltage\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eManual Transfer Switch (MTS)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eI–0–II three-position operation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for dual power supply systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInterlock mechanism helps prevent simultaneous connection of the two sources\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e35mm DIN rail mounting\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for grid and generator changeover applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for residential, commercial and industrial installations\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompact modular design for electrical distribution panels\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe TOMZN TO419G is specified for 4P, 63A operation and DIN-rail mounting; TOMZN documentation also describes the I, middle and II operating positions and their corresponding terminal connections.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDual Power Manual Transfer Switch\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eTOMZN TO419G\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is intended for systems where electrical loads need to be manually transferred between two independent power sources.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTypical examples include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNormal Power → Standby Power\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor example, one source may be the utility\/grid supply while the second source may be a generator or another backup supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe manual mechanism gives the operator direct control over the selected source rather than automatically transferring the load.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eI–0–II Changeover Operation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe TO419G has three operating positions:\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePosition I\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eConnects the first power source to the corresponding output terminals.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMiddle Position – 0\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBoth power-source groups are disconnected.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePosition II\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eConnects the second power source to the corresponding output terminals.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor the 4P TO419G, TOMZN's wiring documentation specifies the terminal relationships for each position.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e4-Pole Configuration\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4P design\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides four switched poles, making the TO419G suitable for power-transfer arrangements where all required conductors need to be switched between the two sources.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes the product suitable for appropriately designed three-phase power systems and dual-source distribution panels.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDIN Rail Installation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe TOMZN TO419G is designed for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e35mm DIN rail mounting\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing it to be installed inside compatible electrical distribution boards, control panels and power-transfer enclosures. TOMZN documentation specifies DIN rail mounting using a fast-clip arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe TOMZN TO419G 4P 63A Manual Transfer Switch can be used for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eGrid and generator changeover\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual power supply systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBackup power systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResidential electrical panels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCommercial distribution panels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIndustrial power distribution\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGenerator transfer applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSolar backup power systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eElectrical control panels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThree-phase AC power systems\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eCurrent Pakistan listings also position the TO419G for residential, commercial, industrial and solar-backup applications.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eNormal Working \u0026amp; Installation Conditions\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eBased on the supplied product information, the recommended conditions are:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eAmbient temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e -5°C to +40°C\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaximum average temperature over 24 hours:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e +35°C\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaximum installation altitude:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2000m\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eRelative humidity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Up to 50% at +40°C\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigher humidity may be permitted at lower temperatures according to the specified conditions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation should account for condensation\/dew caused by temperature changes\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTOMZN\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTO419G\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eManual Transfer Switch (MTS)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFunction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDual Power \/ Changeover\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e63A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNumber of Poles\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4P\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e400V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated Frequency\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50\/60Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eManual\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePositions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eI – 0 – II\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e35mm DIN Rail\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInterlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDual Power \/ AC Power Transfer\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eTOMZN's own product information lists the TO419G as a 4P 400V AC manual transfer switch, while its product specification page lists 40A\/63A variants and 240\/415V depending on the configuration. The product image supplied here specifically shows the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e63A \/ 400V \/ 50–60Hz\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e marking, so those values are used for this product listing. \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the TOMZN TO419G?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe TOMZN TO419G is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4-pole Manual Transfer Switch (MTS)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e designed for manually transferring an electrical load between two power sources.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the current rating of the TO419G?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis product is the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e63A version\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e of the TO419G.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the TOMZN TO419G a 4-pole switch?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. The TO419G shown here is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4P (4-pole) manual transfer switch\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat voltage is the TOMZN TO419G rated for?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe supplied product image identifies the 63A model as \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e400V AC, 50\/60Hz\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. TOMZN's product documentation also identifies the TO419G 4P version as 400V AC.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan the TO419G switch between grid and generator power?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. It is designed for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edual power-source changeover\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, making it suitable for appropriately designed grid\/generator backup systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes the TO419G have an interlock?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. The TO419G uses an interlock arrangement to prevent the two power-source positions from being connected simultaneously during normal operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the TOMZN TO419G DIN rail mountable?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. The TO419G is designed for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e35mm DIN rail mounting\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes the TO419G automatically transfer power?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. The TO419G is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eManual Transfer Switch\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. The operator manually selects position I, 0 or II. It should not be marketed as an automatic transfer switch (ATS).\u003c\/span\u003e\u003c\/p\u003e","brand":"Tomzn","offers":[{"title":"Default Title","offer_id":52899054944568,"sku":"AR-001219","price":2750.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/7087\/3656\/files\/4P-63A-3-phase-TOMZN-MTS-Dual-Po_90a73cc9-a681-48d6-aa7e-2759d3229201.jpg?v=1788374305","url":"https:\/\/chpowersolutions.com\/products\/tomzn-to419g-4p-63a-manual-transfer-switch","provider":"Ch Power Solutions","version":"1.0","type":"link"}