Self-Reclosing Differential Circutor REC4 2P 30A 30mA

The Circuitor REC4 2P 40A 30mA self-reclosing residual current device, code P26A21, is an advanced and efficient solution for protecting electrical installations safely and continuously. This residual current circuit breaker from the REC4 family is specifically designed to ensure differential protection while allowing for automatic reconnection after trips due to non-critical causes, ensuring continuity of electrical service at all times. It is ideal for environments where the interruption of the power supply could affect the operation of essential equipment or cause significant inconvenience.

This self-reclosing residual current device features 2 poles and supports a nominal current of 40A, with a sensitivity of 30mA to ensure protection against current leaks. It is designed according to type A, which allows it to detect both alternating currents and pulsed currents with a DC component. Its nominal voltage is 230 V and it supports a frequency of 50/60 Hz, making it suitable for most standard electrical installations.

The REC4 includes a smart reconnection motor, which automatically makes up to three reconnection attempts at preset time intervals (10, 20, and 60 seconds). This ensures that if the issue causing the trip was temporary or minor, the power supply is restored without the need for manual intervention. Additionally, the device features a lock system that allows operation in manual or automatic mode, depending on the specific needs of the installation.

This equipment is particularly useful in sectors where continuity of electrical service is critical, such as in residential areas, where it can protect devices like refrigerators, alarms, and garage doors, and in the service sector, to ensure the continuous operation of air conditioning systems, refrigeration units, or lighting. In the industrial sector, it is key to maintaining critical production processes without interruptions.

The time-based reconnection mode is one of the great advantages of this device, as it helps prevent prolonged interruptions and ensures the installation remains operational if the fault was momentary or non-critical. Moreover, the built-in reconnection element simplifies its installation, as it does not require complex interconnections between the motor and the residual current circuit breaker.

In terms of installation, this residual current device easily mounts on a DIN rail, facilitating its integration into any electrical panel. Its compact design, with dimensions of 54.5 mm wide, 115.5 mm high, and 81 mm deep, optimises space within the panel. Made with a V0 polycarbonate plastic enclosure, it ensures durability and resistance under standard operating conditions. Weighing 0.294 kg, it is a lightweight and easy-to-handle device.

This self-reclosing residual current device is also resistant to adverse environmental conditions, with a working temperature range of -25 ºC to +55 ºC for differential protection, and -10 ºC to +55 ºC for the reclosing function. Additionally, it has an IP20 protection rating, ensuring its use indoors with humidity levels between 5% and 95% without condensation.

Highlighted Technical Specifications:

• Nominal current: 40A
• Differential sensitivity: 30 mA
• Nominal voltage: 230 V ~
• Frequency: 50/60 Hz
• Automatic reconnection: 3 attempts (10, 20, 60 seconds)
• Impact protection: Grade IK04
• IP protection: IP20, indoor use
• Fault resistance: < 8 kΩ (no reclosing) / > 16 kΩ (reclosing)
• Weight: 0.294 kg
• Dimensions: 54.5 x 115.5 x 81 mm
• Certifications: Complies with UNE-EN 61008-1 and UNE-EN 63024 standards
• Mounting: On DIN rail

The Circuitor REC4 2P 40A 30mA type A self-reclosing residual current device is the perfect solution for those seeking a reliable electrical protection system capable of ensuring service continuity in critical installations. Its automatic reconnection capability and its compact, robust design make it ideal for a wide range of applications, from residential to industrial and commercial environments.