Permanent surge protector Cirprotec V-CHECK MINI 4P 10 A

The Cirprotec V-CHECK MINI 4P-10, reference 79706111, is a combined protector for three-phase electrical installations that integrates overvoltage protection against permanent overvoltages (POP), transient overvoltage protection (Type 2 SPD), and a 10 A main automatic circuit breaker (MCB) in a single unit. Its compact, pre-wired design makes it easy to protect low-voltage installations against prolonged voltage rises and transient surges.

It is configured for 3P+N networks, has 4 poles, and takes up 7 DIN modules. Cirprotec specifically designs it for electrical panels where several protection functions need to be combined into a single device, saving space and simplifying wiring.

Protection against permanent and transient overvoltages

The V-CHECK MINI combines two types of protection against voltage anomalies. Protection against permanent overvoltages acts when the mains voltage remains above the permissible limits for a certain period of time, a situation that can occur, for example, due to issues related to the neutral conductor in a three-phase installation.

Meanwhile, the Type 2 transient overvoltage protector is designed to limit very short-duration voltage spikes, such as those caused by switching operations on the network or by indirect effects associated with lightning strikes.

Integrated 10 A MCB

Reference 79706111 incorporates a 10 A thermal-magnetic circuit breaker with C tripping curve. This MCB is part of the protection system itself, so the response to a permanent overvoltage is carried out directly on the integrated breaker.

The thermal-magnetic breaker has a rated breaking capacity of 6000 A according to UNE-EN 60898 and 10 kA according to UNE-EN 60947-2.

Type 2 protector for three-phase networks

The transient overvoltage protection module is classified as Class II according to IEC and Type 2 according to EN. It uses an internal 3+1 configuration and protects L-N and N-PE modes.

The system nominal voltage is 230/400 V AC. The maximum continuous operating voltage is 255 V both between phase and neutral and between neutral and earth.

Discharge capacity against transient overvoltages

In phase-neutral modes, the V-CHECK MINI 4P has a nominal discharge current In of 5 kA and a maximum discharge current Imax of 15 kA with an 8/20 µs waveform.

In neutral-earth mode, the nominal discharge current reaches 20 kA. The voltage protection level Up is equal to or less than 1.5 kV in both L-N and N-PE.

Fast response to electrical surges

The protector has a response time of up to 25 ns in phase-neutral modes and up to 100 ns between neutral and earth. It also incorporates dynamic thermal disconnection to protect the device itself against abnormal conditions.

Test button and LED indicator

The V-CHECK MINI 4P includes a test button that allows the operation of the permanent overvoltage protection system to be checked. When the test is carried out according to Cirprotec’s procedure, the MCB must trip, cutting off the supply.

It also features visual indication via LED. The indicator allows the protection status to be checked quickly during inspection and maintenance tasks on the electrical panel.

Pre-wired and compact design

Cirprotec has designed the V-CHECK MINI range as a pre-wired solution to reduce assembly time and simplify connections inside the electrical panel. By integrating POP, SPD and MCB in the same assembly, it avoids having to install these elements completely separately.

The V-CHECK MINI 4P occupies 7 DIN modules and has approximate dimensions of 96 x 123 x 76 mm. It is designed for installation in indoor electrical panels.

Applications of the Cirprotec V-CHECK MINI 4P

Thanks to its 3P+N three-phase configuration, this device is suitable for main and secondary panels in compatible three-phase installations where simultaneous protection against permanent and transient overvoltages is required.

• 3P+N three-phase electrical installations.
• Main control and protection panels.
• Residential buildings and common services.
• Premises and small commercial spaces.
• Compatible industrial installations.
• Photovoltaic installations and storage systems, depending on the electrical design.
• Renovations where reducing the space occupied in the panel is a priority.

Technical characteristics of the Cirprotec V-CHECK MINI 4P-10

• Brand: Cirprotec.
• Reference: 79706111.
• Model: V-CHECK MINI 4P-10.
• Type: combined protector against permanent and transient overvoltages with MCB.
• Configuration: 3P+N.
• Number of poles: 4.
• Internal configuration: 3+1.
• MCB rated current: 10 A.
• Tripping curve: C.
• Rated frequency: 50 Hz.
• Rated voltage: 230/400 V AC.
• Permanent overvoltage protection: yes, POP.
• Transient overvoltage protection: yes.
• SPD IEC class: Class II.
• SPD EN type: Type 2.
• Protection modes: L-N / N-PE.
• Maximum continuous operating voltage Uc L-N: 255 V.
• Maximum continuous operating voltage Uc N-PE: 255 V.
• Nominal discharge current In L-N: 5 kA.
• Nominal discharge current In N-PE: 20 kA.
• Maximum discharge current Imax L-N: 15 kA.
• Protection level Up L-N: ≤1.5 kV.
• Protection level Up N-PE: ≤1.5 kV.
• Response time L-N: ≤25 ns.
• Response time N-PE: ≤100 ns.
• Breaking capacity UNE-EN 60898: 6000 A.
• Breaking capacity UNE-EN 60947-2: 10 kA.
• Test button: yes.
• Indication: LED.
• Dynamic thermal disconnection: yes.
• Number of DIN modules: 7.
• Dimensions: approximately 96 x 123 x 76 mm.
• Net weight: 0.732 kg.
• Degree of protection: IP20.
• Temperature range: -5 to +40 °C.
• Humidity range: 5-95%.
• Rigid conductor cross-section: 6-35 mm².
• Flexible conductor cross-section: 6-25 mm².
• Insulating material: PA66 CT1.
• Color: grey RAL 7035.
• Installation: indoor electrical panel on DIN rail.
• Product standards: IEC 63052 and EN 61643-11.

Compact protection for three-phase electrical panels

The Cirprotec V-CHECK MINI 4P-10 combines permanent overvoltage protection, a Type 2 transient overvoltage protector, and a 10 A MCB in just 7 modules. This integration simplifies electrical panel design and reduces the space required compared with solutions made up of several separate devices.

Its 3P+N configuration, test button, LED indicator, and surge protection capacity of up to 15 kA in L-N make it a particularly suitable solution for three-phase installations that require combined, compact protection.

Important: the selection of the MCB rated current must be adapted to the characteristics of the installation. Installation and wiring of the V-CHECK MINI 4P must be carried out by a qualified electrician, following Cirprotec’s instructions and the applicable electrical regulations.