Why Choose the Lovato P1RD4P40AC300 Residual Current Device?
The Lovato P1RD4P40AC300 is a modular four-pole residual current device (RCD/RCCB) designed to detect earth-leakage currents and disconnect the protected circuit when the residual current reaches its operating threshold. Part of the Lovato P1RD series, it provides residual-current protection for three-phase electrical distribution, industrial control and machinery applications.
Rated at 40 A with a rated residual operating current of 300 mA, the P1RD4P40AC300 is intended for applications requiring earth-fault and leakage-current protection at this sensitivity level. Its Type AC characteristic responds to sinusoidal alternating residual currents and is suitable for compatible conventional AC electrical circuits.
The four-pole configuration is designed for compatible three-phase systems where simultaneous disconnection of all active conductors is required. Its compact modular construction and standard 35 mm DIN rail mounting make the P1RD4P40AC300 straightforward to integrate into industrial distribution boards and electrical control panels.
Key Advantages
- Four-pole residual current device for three-phase earth-leakage protection.
- 40 A rated current for compatible electrical circuits.
- 300 mA rated residual operating current for earth-fault and leakage-current protection.
- Type AC characteristic for detection of sinusoidal alternating residual currents.
- Four-pole switching supports simultaneous isolation in compatible three-phase systems.
- Compact DIN rail mounted design for modular distribution and control panels.
Key Features
- Lovato P1RD residual current device series.
- 4-pole configuration.
- 40 A rated current.
- 300 mA rated residual operating current (IΔn).
- Type AC residual-current sensitivity.
- Detection of sinusoidal alternating residual currents.
- Integrated test facility for periodic verification of residual-current operation.
- Modular construction for electrical distribution equipment.
- Standard 35 mm DIN rail mounting.
Reliable Residual-Current Protection for Three-Phase Systems
Residual current devices such as the Lovato P1RD4P40AC300 monitor the balance of current flowing through the active conductors of an electrical circuit. If leakage to earth creates a residual-current imbalance that reaches the device's operating threshold, the RCD disconnects the circuit to help protect the installation against the consequences of earth faults and insulation leakage.
The Type AC characteristic is intended for circuits where sinusoidal alternating residual currents are expected. Combined with its 300 mA sensitivity, 40 A current rating and four-pole construction, the P1RD4P40AC300 provides a practical residual-current protection solution for suitable three-phase industrial and electrical distribution systems.
Typical Applications
- Three-phase electrical distribution boards.
- Industrial control panels and power circuits.
- Industrial machinery and equipment panels.
- Commercial and industrial electrical installations.
- Compatible AC circuits requiring earth-leakage protection.
- Applications requiring 300 mA Type AC residual-current protection.
