Lovato’s P1RC2P40AC300 residual current operated circuit breaker provides reliable AC residual current protection in a compact footprint. This 2‑pole, 2‑module Type AC device is rated at 40 A with 300 mA I∆n, and conforms to IEC/EN/BS 61008-1. Built for DIN‑rail assemblies, it suits installations requiring assured disconnection under alternating residual current conditions.
Engineered for resilience, it offers Ui 400 V and Uimp 4 kV, with IP20 frontal protection. Efficient design limits power dissipation to 1.6 W per pole. It operates from −35 to +70 °C and up to 2000 m altitude, with terminals tightened to 1.8–2 Nm. Supplied in a 2‑module format, installation is straightforward within DIN assemblies.
Key Benefits
Type AC residual characteristic for alternating residual current protection
2P, 2 DIN modules for compact, space-saving panel integration
40 A rated current with 300 mA I∆n sensitivity
Ui 400 V and Uimp 4 kV for robust insulation performance
Operates from −35 to +70 °C for varied environments
IP20 frontal protection and Pollution degree 2 classification
Low power dissipation, only 1.6 W per pole
Conforms to IEC/EN/BS 61008-1 for proven compliance
What’s Included
Lovato residual current operated circuit breaker, 2P (P1RC2P40AC300)
Manufacturer datasheet (downloadable via product page)
Basic installation and safety information
Applications
Protection against AC residual current faults on 2‑pole circuits
Boards requiring a 2‑module, Type AC residual current operated circuit breaker
Circuits rated up to 40 A with 300 mA sensitivity
Installations built to IEC/EN/BS 61008-1 requirements
Technical Specifications
Rated insulation voltage Ui (IEC/EN)
400 V
Rated impulse withstand voltage Uimp
4 kV
Power dissipation per pole (max)
1.6 W
Operating temperature
-35 to +70 °C
Storage temperature
-40 to 80 °C
Max altitude
2000 m
Terminal tightening torque
1.8 to 2 Nm
Weight
185 g
IP degree (frontal)
IP20
Pollution degree
2
Frequently Asked Questions
What residual operation characteristic does this breaker have?
It is Type AC, designed for alternating residual currents.
What are its rated current and sensitivity?
The device is rated at 40 A with a 300 mA rated residual current I∆n.
What space and pole configuration does it require?
It occupies 2 DIN modules and provides a 2‑pole configuration.
What environmental and protection ratings are specified?
Operating range is −35 to +70 °C with IP20 frontal protection and max altitude 2000 m.
What terminal tightening torque should be applied?
The specified terminal tightening torque is 1.8 to 2 Nm.
Safety note: Installation and servicing must be performed by qualified personnel. Isolate the supply before work and follow IEC/EN/BS 61008-1 and manufacturer instructions, observing the stated torque and environmental limits.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...