Features:
- Reliable
- Exceptional longlife
- Longer life
Detailed Specs:
These 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 them from the load. This thus avoids C.T. open circuit problems and facilitates easy Connections for testing instruments. 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 as FC or BC. The Test Terminal Blocks are suitable for 3 phase, 3 wire or 3 phase 4 wire application for up to 50 A, 600 V, continuous rating, and generally conform to IEC 60947-7-1.
The most popular 13 Way TTB has 13 Terminals in total, of which 9 are current terminals and 4 are voltage terminals. The current terminals are separated into groups of 3 for testing, with inter-terminal shorting links for short-circuiting of the CT terminals .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. To ensure safety, a moulded shroud is provided for isolation of the 4 voltage terminals.
For viewing the inside connections without removing the cover, thus saving time of the Operator, a
sturdy, transparent, flame retardant (UL94V0 grade) polycarbonate top cover is provided. Optionally, the top cover is offered in Bakelite, as the base is made of. The top cover is secured in place by knurled knobs and a 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 provide high conductivity. The screws are provided with rounded edges to prevent any damage to cable strands. Each terminal has a 6 mm
diameter hole for cable entry and two M5 screws secure the cables.
For the Back Connected Test Terminal Blocks, colour coded sleeves in red, yellow and blue colours or in brown, grey and black colours, in line with the colour code/ practice prevalent in the country are provided to indicate the 3 different phases.
We offer 9 Way Test Terminal Blocks, special design 13 Way Terminal Blocks and Test Terminal Blocks with Voltage Disconnect features, against specific requirement.
