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PRODUCTS

Standard Brass Neutral Bars are offered in sections of 7mm x 9mm, 8mm x 12mm and 12.7mm x 12.7mm, with wide range application in the Distribution and Panel Boards. These are available in 12 way, 18 way, 24 way 30 way, 36 way, 42 way, ½ meter, 1meter lengths. There are many other sections of Brass Neutral Bars available. We can also offer Brass Neutral Bars, in addition to specific customer requirements of and in specified Brass composition. Insulating Supports, Screw Base or Snap-On-Din 35 rail mount, are also offered for the neutral bars.

Shrink wrapping of the Neutral Bars ensures fresh product available right up to the assembly line.

Brass Neutral Bars & Support / Hinges and other Components

Drawing of Brass Neutral Bars 8mm X 12mm

Drawing of Brass Neutral Bars 7mm X 9mm

Drawing of Brass Neutral Bars 6 Way To 96 Way

Drawing of Brass Neutral Bars 12 Way To 84 Way

Brass Neutral Bars & Support

These 4 Way Test Blocks are used for mounting on switchboard panels for use with proper test equipments to facilitate the testing of AC instruments, meters and relays.

Technical Features

Type TTB4W test blocks are 4-pole blocks, provided with 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. Thereafter, normal connections are restored by replacing the cover.

Contact rating is 250 volts, 10 amperes continuously.

Each TTB4 Test Block includes the Test Block and cover with a set of uncounted auxiliary contacts, jumpers, and screws in sufficient variety and quantity to provide the combinations to suit any application desired. Some arrangements of which are shown in figures below. The price for the TTB 4 way Test Block includes the price for mounting screws, nuts for the studs, and (for blocks for mounting on 1/8-1/2-inch panels) and bushings for the studs.

Details of the Auxilliary Contacts provided are as below:

Auxilliary contact C1 is equal to one pole of contact No. 1, to be used in connection with jumper shown in Figure.

Auxilliary contact C2 is used to short circuit the current transformer when the cover or plug is not in place.

Auxilliary contact C3 is used as bridge to maintain the circuit during the period that the cover or the plug is not in place. Without this connection, loss of revenue is possible because of interrupted operation if the replacement of the cover or plug is long delayed.

Auxilliary contact C4 jumpers is to be used in connection with auxilliary contact C2 or C4, to serve the same purpose as C2 in short circuiting a current transformer, or to interconnect phases, when the cover fastening stud is to be by-passed.

The Auxilliary contacts are furnished as a standard along with each TTB 4w Test Block are - C1 - 1No., C2 - 2 Nos, C3 - 4 Nos. and C4 - 1 No

- Drawing of Auxilliary Contacts

TTB 4 Way Back Connection Test Block

TTB 4 Way BC Test Block

Test Report : On Request

We are engaged in manufacturing an extensive range Test Block 6 Way which are made by using premium quality raw material. These are known for smooth surface finish, long service life, durability and reliability. Our range caters to the needs of varied industries and are used in test equipment such as transformer ratio-meters and instrument transformer.

TTB 6 Way Test Block With Extended Pc Cover

TTB 6 Way Test Block

Test Report : On Request

The Test Blocks offer easy access for on site testing of Ammeters, KWH Meters, Maximum Demand Indicators, Trivector Meters, Relays and Instrument Transformers without disconnecting from load and avoid C.T. open circuit problems. Connections for testing can be easily made. The Test Block therefore becomes an important element of the Metering Solution.

The Test Blocks are designed for projection mounting with front connection possibilities, designated with FC. The Test Blocks are for 3 phase, 3 wire with Neutral application for up to 30 A continuous rating at 450 V and generally conform to IEC 60947-7-1. The most popular 10 Way TTB has 10 Terminals in total, of which 6 are current terminals, 3 are voltage terminals and 1 Neutral. The current terminals are separated into groups of 2 with inter-terminal shorting links for short-circuiting of the CT terminals and testing.

The base of the Test Block is made of excellent quality electrical grade black bakelite moulding powder. The base moulding is provided with integrally moulded barriers between the terminals for complete protection against flashovers.

We are engaged in manufacturing an extensive range Test Block 10 Way which are made by using premium quality raw material. These are known for smooth surface finish, long service life, durability and reliability. Our range caters to the needs of varied industries and are used in test equipment such as transformer ratio-meters and instrument transformer.

TTB 10 Way Test Block

Test Report : On Request

The Test Terminals Blocks offer easy access for on site testing of Ammeters, KWH Meters, Maximum Demand Indicators, Trivector Meters, Relays and Instrument Transformers without disconnecting from load and avoid C.T. open circuit problems. Connections for testing can be easily made. The Test Terminal Block therefore becomes an important element of the Metering Solution.

The Test Terminals Blocks are designed for projection mounting with either front or back connection possibilities, designated with FC or BC. The Test Terminal Blocks are for 3 phase, 3 wire or 3 phase 4 wire application for up to 50 A continuous rating at 600 V and generally conform to IEC 60947-7-1.

The most popular 13 Way TTB has 13 Terminals in total, of which 9 terminals are current and 4 are voltage terminals. The current terminals are separated into groups of 3 with inter-terminal shorting links for short-circuiting of the CT terminals and testing. The base of the Test Terminal Block is made of excellent quality electrical grade black bakelite moulding powder. The base moulding is provided with integrally moulded barriers between the terminals for complete protection against flashovers. In addition, a bakelite shield is provided in front to avoid flashover or shorting at cable entries. A moulded shroud is provided for safety against the voltage terminals.

For viewing the inside connections without removing the cover, thus saving time of the Operator, a transparent, sturdy and flame retardant (UL94V0) top PC cover is provided. Optionally, the top cover is offered bakelite. The top cover is secured in place by knurled knobs and sealing arrangement is provided to prevent unauthorized access. The Test Terminal Block can be fitted to any panel by means of 4 holes provided on the base.

All terminals, shorting links, screws, nuts, etc., used in the electrical connections are of are bright nickel-plated brass to prevent corrosion and providing high conductivity. The screws are provided with rounded edges to prevent any damage to cable strands. Each terminal has a 6 mm dia hole for cable entry and two M5 screws secure the cables. For the Back Connected Test Terminal Blocks, colour coded sleeves of red, yellow and blue are provided to indicate different phases.

We offer 9 Way Test Terminal Blocks, special design 13 Way Terminal Blocks and Test Terminal Blocks with Voltage Disconnect against specific requirement.

TTB 13 Way 3 Ph 4 Wire Back Connected

- TTB 13 Way 3 Ph 4 Wire Back Connection With PC Cover

Drawing of TTB 13 Way 3 Ph 4 Wire FC With PC Cover

Test Report : On Request

The Test Terminals Blocks offer easy access for on site testing of Ammeters, KWH Meters, Maximum Demand Indicators, Trivector Meters, Relays and Instrument Transformers without disconnecting from load and avoid C.T. open circuit problems. Connections for testing can be easily made. The Test Terminal Block therefore becomes an important element of the Metering Solution.

The Test Terminals Blocks are designed for projection mounting with either front or back connection possibilities, designated with FC or BC. The Test Terminal Blocks are for 3 phase, 3 wire or 3 phase 4 wire application for up to 50 A continuous rating at 600 V and generally conform to IEC 60947-7-1.

The most popular 13 Way TTB has 13 Terminals in total, of which 9 terminals are current and 4 are voltage terminals. The current terminals are separated into groups of 3 with inter-terminal shorting links for short-circuiting of the CT terminals and testing.

The base of the Test Terminal Block is made of excellent quality electrical grade black bakelite moulding powder. The base moulding is provided with integrally moulded barriers between the terminals for complete protection against flashovers. In addition, a bakelite shield is provided in front to avoid flashover or shorting at cable entries. A moulded shroud is provided for safety against the voltage terminals.

For viewing the inside connections without removing the cover, thus saving time of the Operator, a transparent, sturdy and flame retardant (UL94V0) top PC cover is provided. Optionally, the top cover is offered bakelite. The top cover is secured in place by knurled knobs and sealing arrangement is provided to prevent unauthorized access. The Test Terminal Block can be fitted to any panel by means of 4 holes provided on the base.

All terminals, shorting links, screws, nuts, etc., used in the electrical connections are of are bright nickel-plated brass to prevent corrosion and providing high conductivity. The screws are provided with rounded edges to prevent any damage to cable strands. Each terminal has a 6 mm dia hole for cable entry and two M5 screws secure the cables. For the Back Connected Test Terminal Blocks, colour coded sleeves of red, yellow and blue are provided to indicate different phases.

We offer 9 Way Test Terminal Blocks, special design 13 Way Terminal Blocks and Test Terminal Blocks with Voltage Disconnect against specific requirement.

TTB 13 Way 3 Ph 4 Wire Voltage Disconnection FC With Extended PC Cover

TTB 13 Way 3 Ph 4 Wire Voltage Disconnection FC With Bakelite Cover

Drawing of TTB 13 Way 3 Ph 4 Wire Voltage Disconnection FC

Test Report : On Request

We are instrumental in offering our clients a wide range of Test Terminal Block Cover (PC and Bakelite). These test plugs are inserted in a block for testing and a protector cover is fitted to the block. Our block covers are available with a connection for trip circuit as per the demands and requirements of our clients.

TTB Cover (PC and Bakelite).

Mapson