Schneider RCCB 40A 4P A9R50440 is an option among residual current circuit breakers at Bashiti Stores, designed to detect residual current and disconnect the circuit when the specified leakage sensitivity is exceeded. This model features a 40A current rating and 30mA leakage sensitivity. When comparing, distinguish between the current passing through the device and the leakage value that triggers disconnection, and review the appropriate protection type for your loads.
Practical Benefits
- Adds earth leakage detection functionality to the protection system when selected and installed correctly.
- The presence of a specific rated current and leakage sensitivity allows for clear comparison of the device against panel requirements.
- Distinguishing between protection type and current helps avoid confusion between wiring protection and leakage protection.
Technical Specifications for this Model
| Brand |
Schneider Electric |
| Series |
Acti9 iID K |
| Model Reference |
A9R50440 |
| Rated Current |
40 A |
| Number of Poles |
4P |
| Leakage Sensitivity |
30 mA |
| Leakage Detection Type |
AC |
| Stated Operating Voltage |
380VAC to 415VAC |
| Dimensions: W x H x D |
72 x 85 x 69 mm |
| Stated Mounting |
DIN rail |
Who needs this product?
Technicians involved in the assembly and maintenance of distribution boards in buildings, whenever earth leakage protection functionality is required according to the protection scheme. The type, sensitivity, current, and number of poles must be selected in coordination with the remaining circuit breakers and loads.
Installation and Verification — For Professional Technicians
The following steps outline general work sequences. Refer to the manufacturer's diagram for reference A9R50440 to determine terminals and torque values. Do not perform work on an energized circuit.
- The technician disconnects all power sources, secures them against re-energization, and verifies the absence of voltage with a suitable tool.
- Matches the device reference, number of poles, current, and voltage with the panel diagram, and reviews conductor cross-section and protection coordination.
- Mounts the unit on the rail or its designated position after ensuring compatibility, and identifies supply and output from the manufacturer's diagram for this reference.
- Executes connections with the tightening torque, stripping length, and wire cross-sections specified in the model manual; do not carry over these values from a similar device.
- Checks the tightness of the mounting and connections, closes the covers, and performs the required functional and protection tests before handing over the circuit.
Frequently Asked Questions Before Buying
Does an RCCB protect against overload and short circuits?
An RCCB does not include overcurrent protection, so it requires coordination with an appropriate circuit breaker or fuse. It should not be used as a substitute for an overload and short-circuit breaker.
Does 40 Amps mean the leakage sensitivity is 40 Amps?
No. Rated current and leakage sensitivity are two different values; sensitivity here is expressed in milliamps, while rated current concerns the current flow through the device.
Is type AC suitable for all electronic loads?
Not automatically. The technician determines the required protection type based on the shape of the potential leakage current and the nature of the loads; some circuits may require a different type.
Order from Bashiti Stores
Learn more in our Electrical Section and Circuit Breakers category. Bashiti Stores — Yousef Bashiti Company, serving individuals, companies, and projects in Jordan. For product inquiries and quantities, contact us at 0795756898 or visit our Bayader and Wehdat branches in Amman.
For comparison within the category
Also check out the Schneider RCCB 63A 4P A9R41463, and compare specifications to choose what suits your needs.
