General properties, type ASK

• Unbreakable plastic housing
• Polycarbonate black
• Flame retardant
• Self-extinguishing
• Transformer housing ultrasonically welded
• Nickel-plated secondary terminals with plus/minus M 5 x 8 mm screw, tightening torque max. 2 Nm
• Integrated secondary closure flap
• Connection cross section: max 4 mm² with wire end ferrule, 6 mm² solid

General properties, type CTB

• UL certified
• World's first current transformer with screwless connection technology - spring-loaded terminal block
• Innovative, time-saving connection option (front or top) for solid and flexible conductors (max. 4 mm² - wire end ferrules are not necessary)
• Shock and vibration resistant, high mechanical holding forces
• Maintenance-free, gas-tight connection
• High current resistance
• Therm. rated continuous current Icth: 1.2 x IN
• Low-voltage current transformer for max. operating voltages up to 1.2 kV; use in 690 V networks possible