Application
EMT-T20 series terminal switch is used to panels and indirect medication systems of active power and / or reactive power, and its possible application in all models
of electromechanical or electronic meters marketed allowing the realization of testing, replacement and calibration of meters.Rated current is 20A. The product adopt high fire resistant and shockproof plastics, quality
metal materials, which is neoteric in structure, light in weight,
reliable in performance.
Normal working conditions
Terminal switch are electro-mechanical devices with surface or flush mounting. When operate the system in testing, maintenance or replacement of equipment shall be at the open position, then electrical insulated thereof. When the knives are in the closed position, keeps the continuity of the electrical circuits of the voltages and currents.When open the knives of the current circuits, occurs a short full circuit between the current input terminals of the key, thus avoiding the opening of the secondary circuit of CTs, before the full opening of the knives, they provide a short circuit at the terminals of the secondary of Easy installation and handling, ensures with extreme security, repairs, testing and replacement of system parts.
Technical data
1. Terminal switch technical data Rated voltage: 550VAC
Class of insulation: 4.0 KV Rated current: 20A
Supports 80A peak current for about 60 seconds without
deformations occurring in their functionality.
2. Circuit breaker protection tripping characteristic
Wring (Figure1)
3.High resistant deformity by temperature (50 above the existents in the market),
Anti-fire class V1
Isolation
Installation
1. Dimension and installation size ( see Figure 2)
2. Installation method( see Figure 1)
Storage and Use
1. The terminal switch can not bear rain attack when in transportation and storage. The storage place should no rain and snow.
2. When under using condition, you’d better clear the dust at a regular time, the best way is to use a cover to protect it.
Order note
1. Following items should be marked when ordering Product name, model & frame level
rated current and Quantity
2. Ordering sample
To order the EMT-T20 terminal switch, rated current is 20A, and quantity is 100 pieces,should be marked:
TERMINAL SWITCH EMT-T20,20A,100Pcs
Figuer 2 size of appearance & installation
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Test Terminal Block , Panel Test Switch Fuse Box Images
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