The NIK Terminal Block series (TB 25, TB 125, and TB 125 Adapter) is engineered for safe and efficient current and voltage measurement in multi-phase energy systems. Designed to operate without load disconnection, these terminal blocks ensure reliable energy monitoring and data acquisition in utility and industrial settings. Featuring IP30 protection, high-voltage insulation, and UV-stabilized polycarbonate covers, these units provide secure wiring with long operational life and support for sealing to prevent unauthorized access.
Specifications
Type Options: TB 25, TB 125, TB 125 Adapter
Nominal Operating Voltage: 3×220/380 V
Maximum Amperage:
TB 25: 25 A
TB 125 / TB 125 Adapter: 125 A
Overload Capacity: 10 × In for 0.5 seconds
Nominal Frequency: 50 / 60 Hz
Operating Temperature Range: -40°C to +50°C
Phase-to-phase Insulation: 2000 V (50 Hz, 1 min)
Service Life: 30 years
Weight:
TB 25: 0.5 kg
TB 125: 1 kg
Dimensions:
TB 25: 80 × 45 × 30 mm
TB 125 Adapter: 170 × 112 × 36 mm
TB 125: 218 × 126 × 48 mm
Features
Supports current and voltage measurement without disconnecting load
Designed for safe indoor use with IP30 protection
UV-stabilized polycarbonate cover for durability
Complies with industrial safety and performance standards
Sealing capability to prevent unauthorized access
High electrical insulation between phases
Ideal for use in multi-phase systems and energy metering setups
NIK is one of the largest energy technology enterprises in Eastern Europe, established in 1997. The company specializes in the design and production of advanced metering systems, industrial controllers, and integrated AMI solutions. With an in-house engineering and R&D department, NIK delivers innovative energy management tools for utilities, businesses, and infrastructure projects.
