Circutor M78012 TP6 Split Core Current Transformer 100/5A, 30x30mm

The Circutor TP6 100/5 (code M78012) is a single-phase split-core current transformer rated 100/5 A with a 30 × 30 mm busbar and cable opening. The split-core construction allows the unit to be fitted around an energised conductor or busbar without interrupting the circuit, making it well suited to retrofit metering work. The secondary output is a standard 5 A signal compatible with energy meters and panel instruments.

Technical specifications:

• Model: TP6 100/5
• Circutor code: M78012
• EAN: 8433059401184
• Measurement range: 100/5 A
• System: Single-phase
• Transformer type: Split core
• Busbar / flat strip opening: 30 × 30 mm
• Inner diameter: 30 mm
• Rated power (Class 3): 1 VA
• Safety factor (SF): 10
• Insulation voltage between terminals S1-S2: 3 kV
• Operating voltage: 0.72 kV~ max.
• Nominal frequency: 50/60 Hz
• Dynamic current (Idyn): 2.5 Ith
• Thermal short-circuit current (Ith): 60 In
• Overall dimensions (W × H × D): 100 × 51 × 101.8 mm
• Enclosure: Plastic, V0 self-extinguishing
• Mounting: Wall-mounted or DIN rail (accessory required)
• Weight: 0.55 kg
• Protection class: IP 20
• Thermal class: Class B (max. +130 °C)
• Working temperature: -5 to +40 °C
• Storage temperature: -40 to +85 °C
• Relative humidity: 15-85% (non-condensing)
• Maximum installation altitude: 1000 m
• Standards: UNE-EN 61869-1, UNE-EN 61869-2, UL 94

Features and benefits:

• Split-core design permits installation on live cables and busbars, removing the need for a planned power interruption.
• Accepts flat conductors and busbars up to 30 × 30 mm without dismantling existing wiring or switchgear.
• V0 self-extinguishing plastic enclosure limits fire propagation inside closed panels and distribution boards.
• Sealable terminals and cable fastening accessories are supplied with the unit, covering standard installation requirements without additional procurement.
• Rated for working temperatures from -5 to +40 °C and storage down to -40 °C, suitable for indoor panels and unheated enclosures.

Applications:

• Retrofitting energy monitoring or billing metering to live low-voltage distribution boards where a power outage is impractical.
• Current measurement in single-phase cable or busbar systems with conductors up to 30 × 30 mm.
• Supplying a 5 A secondary signal to panel instruments, energy analysers, or power meters.
• Metering installations requiring sealable, tamper-evident measurement terminals.

Also known as: Circutor TP6 100/5, TP6 100/5 M78012, Circutor M78012, split core current transformer 100/5 A, split core CT 30 × 30 mm.