Test Terminal Blocks

Facilitate easy testing
Rugged construction
High electrical strength
Extended top cover-optional
Transparent top cover-optional

Housing & Top Cover
Phoenolic moulding,Black
Terminals, screws & links
Brass, Nickel plated
Rated voltage
600 V max.
Rated current
20 A max.

Relay Test Blocks

  • Facilitates easy in-situ, onload testing of relays, metering and control panels without disrupting load circuit.
  • Easy and safe for technicians to isolate protection relays, inject test signals and verify system performance.
  • Rugged Construction
  • Substantially reduces commissioning and routine maintenance
  • Compatible with other popular brands of test plugs.
The housing is robust, high grade phenolic moulding, capable of long, trouble free performance in varied climatic conditions. It is designed and manufactured for indoor application. The terminals are brass, duly nickle plated. The contacts are spring loaded, silver plated and supported by phosphor bronze strips. Each contact is separated with a SRBP shroud. Screws are provided at the rear for terminations. Alternatively, studs with nuts and washers could also be provided. Sealing holes on cover studs are provided to prevent unauthorized access. The front cover can be removed for test purpose and replaced, thereafter. This cover is fitted with a silver plated contact finger to close the trip contact, when inserted. Otherwise, the trip contact would remain open. Thus the contact finger on the cover, completes the entire circuit. Isolation of the trip circuit is feasible by removing the contact finger fitted to cover thus avoiding unwarranted tripping under test conditions.

Semaphore Indicators

Semaphore indicators are designed to perform on Instrumentation. Control &  Relay Panel's mimic diagram. It indicates the 'open' or 'close' position of the circuit Breaker.
PT ON / OFF switch, Earth Switch, Isolator etc. The Dial Needle Positions itself to right angle with reference to the mimic, when the-Isolator, breaker etc .. is in 'Open' position. In "Closed' position of the Isolator. Breaker etc, the needle positions itself to bridge the gap between the lines and provide continuity in the mimic diagram. When supply to the Semaphore Indicator fails. the needle moves 
to occupy the intermediate position at 45o.
  • Continuously rated heavy duty solenoid coil
  • Dust & vermin proof
  • Exceeds IS-3231 1965 ., specifications
  • Superior operating torque & locking
  • Prolonged test for each unit, for operational accuracy & endurance
  • Aesthetically designed
  • Quality standards matches international standards.
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