Self-resetting differential circuit breaker REC4 2P 30A 30mA

The Circutor REC4 2P 40A 30mA self-resetting differential, code P26A21, is an advanced and efficient solution for safely and continuously protecting electrical installations. This differential switch from the REC4 family is specifically designed to ensure differential protection while allowing for automatic reconnection after trips due to non-critical causes, ensuring the 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 inconveniences.

This self-resetting differential 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, allowing it to detect both alternating currents and pulsating currents with a direct current 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 an intelligent reconnection motor, which automatically performs up to three reconnection attempts at pre-established time intervals (10, 20, and 60 seconds). This ensures that if the problem that caused the trip was temporary or minor, the power supply is restored without the need for manual intervention. Additionally, the device features a locking system that allows it to operate in manual or automatic mode, depending on the specific needs of the installation.

This equipment is especially useful in sectors where continuity of electrical service is critical, such as in homes, 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, cold storage, 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 avoid prolonged interruptions and ensures that the installation remains operational if the failure was momentary or non-critical. Furthermore, the built-in reconnection element simplifies its installation, as it does not require complex interconnections between the motor and the differential switch.

Regarding installation, this differential 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, optimizes 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-resetting differential 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 reset 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: IK04 rating
• IP protection: IP20, indoor use
• Fault resistance: < 8 kΩ (no reset) / > 16 kΩ (reset)
• 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 Circutor REC4 2P 40A 30mA type A self-resetting differential 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 compact, robust design make it ideal for a wide variety of applications, from homes to industrial and commercial environments.