The IME TDGB2 is a closed-core toroidal current transformer designed for earth leakage detection. It has a 35 mm internal diameter, works with differential (residual current) relays, and can detect leakage currents starting from 30 mA.

General Description

• Model: TDGB2
• Type: Earth leakage toroidal current transformer (solid core)
• Application: Used with IME differential relays (DEL series) to detect residual currents in electrical systems
• Construction: Closed-core ring transformer, 2-wire connection

Electrical Specifications

• Internal diameter (cable passage): 35 mm
• Differential current (Idn): 0.03 A (30 mA minimum sensitivity)
• Max operating voltage (Umax): 720 V
• Rated short-time thermal current (Ith): 20 kA (x primary current)
• Rated continuous thermal current (Icth): 20 kA (x primary current)
• Calibrated: No (standard transformer)

Mechanical & Environmental

• Housing material: Plastic, with shock protection
• Mounting: Fixed (no snap mounting)
• Secondary connection: Screw terminals
• Operating temperature range: –40 °C to +70 °C
• Compliance:
  • Low Voltage Directive (LVD) 2014/35/EU
  • Electromagnetic Compatibility Directive (EMC) 2014/30/EU