Product Profile of 4 Way Terminal Test Blocks

4 Way Terminal Test Blocks are used for mounting on switchboard panels for use with proper test equipment to facilitate the testing of AC instruments, meters and relays. These Terminal Test Blocks are offered in 4-pole type construction and are fitted with a moulded bakelite base and cover with an arrangement of internal plug contacts, which make a through positive connection when the cover is in place. These Terminal Test Blocks are equipped with line pressure type contacts which provide positive contact, with minimum contact resistance. 4 Way Terminal Test Blocks include the test block and cover with a set of several auxiliary contacts, jumpers and screws to provide the combination to suit any desired application.

Mapson, India is the manufacturer of 4 Way Terminal Test Blocks. Mapson, India supplies of electrical components like test terminal blocks or test blocks that are employed in control panels to provide easy access in on-site testing of Ammeters, kWH Meters, maximum demand indicators, Trivector meters, relays and instrument transformers , without disconnecting them from the load, thus avoiding CT open circuit problems. The Company also supplies brass neutral links and door hinges as well as many copper components.

Key Features of 4 Way Terminal Test Blocks

• Used for mounting on switchboard panels for use with proper test equipment to facilitate the testing of AC instruments, meters and relays.
• 4-pole blocks, provided with a moulded bakelite base and covers that have an arrangement of internal plug contacts, which make a through positive connection when the cover is in place
• The contacts in the blocks are of the line pressure type and provide positive contact, with minimum contact resistance
• For all current circuits, auxiliary contacts are used which automatically short circuit the current transformer when the cover is removed
• Routine testing can be accomplished simply by removing the cover and substituting the properly connected test plug and normal connections are restored by replacing the cover.
• The Contact rating is 250 volts, 10 amperes Continuous.
• Test Block includes the test block and cover with a set of several auxiliary contacts, jumpers and screws in sufficient variety to provide the combination to suit any desired application