Circutor M78015 TP6 Split Core Current Transformer 250/5A, 30x30mm

Circutor TP6 250/5 (code M78015) is a single-phase split core current transformer with a 250/5 A transformation ratio and a 30 × 30 mm conductor aperture. Its split core construction allows the unit to be clipped onto existing live cables or busbars without interrupting the circuit or dismantling the installation. The 5 A secondary output feeds compatible metering equipment, protection relays, or energy analysers.

Technical specifications:

• Model: TP6 250/5
• Circutor code: M78015
• EAN: 8433059401344
• Transformer type: Split core
• System: Single-phase
• Transformation ratio: 250/5 A
• Flat strip / inner aperture: 30 × 30 mm
• Class 1 rated burden: 1 VA
• Class 3 rated burden: 2 VA
• Safety factor (SF): 10
• Operating voltage: 0.72 kV~ max.
• Insulation voltage (S1-S2): 3 kV
• Nominal frequency: 50/60 Hz
• Thermal short-circuit current (Ith): 60 In
• Dynamic current (Idyn): 2.5 Ith
• Protection class: IP 20
• Enclosure: V0 self-extinguishing plastic
• Thermal class: B (+130 °C)
• Working temperature: -5 to +40 °C
• Storage temperature: -40 to +85 °C
• Relative humidity: 15 - 85% (without condensation)
• Dimensions (W × H × D): 100 × 51 × 101.8 mm
• Weight: 0.55 kg
• Mounting: Wall or DIN rail (accessory required)
• Maximum installation altitude: 1000 m
• Standards: UNE-EN 61869-1, UNE-EN 61869-2, UL 94

Features and benefits:

• Split core design allows fitting over live cables or busbars - no power shutdown or circuit dismantling needed
• V0 self-extinguishing plastic housing meets flame-retardant requirements for panel and switchgear environments
• Sealable terminals and cable fastening accessories are included as standard
• Dual accuracy rating (1 VA at Class 1 and 2 VA at Class 3) covers a range of metering and monitoring instrument requirements
• Supports wall or DIN rail mounting via accessory, providing flexibility when fitting inside distribution boards

Applications:

• Retrofitting current measurement onto live single-phase busbars up to 30 × 30 mm without a planned outage
• Sub-metering and energy measurement in single-phase distribution panels and switchboards
• Supplying a 5 A secondary signal to energy analysers, power monitors, or protection relays
• Cable and busbar installations in commercial or industrial premises where circuit interruption is not permitted

Also known as: Circutor TP6 250/5, TP6 250/5 M78015, Circutor M78015, split core current transformer 250A, Circutor split core CT 250/5.