Schneider Electric Multi 9 iDPNa RCBO

Overview

The Schneider Electric Multi 9 iDPNa RCBO is a residual current breaker with integrated overcurrent protection, combining earth-leakage and short-circuit/overload protection in a single compact DIN-rail device. For panel builders across Oman and the GCC, the iDPNa RCBO eliminates the need to pair a separate RCD and MCB, saving enclosure width while delivering both Type A residual current sensing and thermal-magnetic overcurrent trip curves from one certified unit.

Backed by genuine manufacturer documentation, Seven Star LLC proudly supplies the Schneider Electric iDPNa RCBO residual current breaker with overcurrent protection to industrial, commercial, and utility customers across the Sultanate of Oman and the wider GCC. Units are supplied on request with full technical documentation and application support for panel builders and facility engineers in Oman specifying a residual current breaker with overcurrent protection.

Operating Principle

The iDPNa RCBO works by continuously comparing current flowing through the line and neutral conductors using an internal toroidal current transformer. Under normal conditions the vector sum of currents is zero; if leakage current to earth exceeds the rated sensitivity, typically 30 mA for personnel protection, the imbalance is detected and the RCBO trips within the required time delay, isolating the circuit before a dangerous touch voltage can develop.

In parallel, the thermal-magnetic overcurrent element of the Schneider Electric iDPNa protects against sustained overload and short-circuit conditions using the same bimetallic and electromagnetic trip mechanisms found in a standard Multi 9 MCB. Because both functions share a single trip bar, a fault of either type opens all poles simultaneously, and the visible trip indicator lets maintenance staff distinguish an earth-fault trip from an overcurrent trip without opening the panel.

Engineering Design of the Schneider Electric iDPNa RCBO

Housed in the familiar Multi 9 modular casing, the iDPNa RCBO mounts directly on standard 35 mm DIN rail and occupies the same footprint panel designers already allow for Acti9 and Multi 9 devices, simplifying retrofit into existing switchboards across Oman’s commercial and residential developments. The toroidal sensing coil and trip electronics are fully integrated within the molded case, so no external accessory or auxiliary wiring is required to achieve combined RCD plus MCB functionality.

Terminals on the Schneider Electric iDPNa RCBO accept both rigid and flexible conductors up to the rated cross-section, and the device carries a clear mechanical trip flag along with a test button that lets electricians verify residual current tripping during routine maintenance without disconnecting load. The compact width, typically two modules for a single-pole plus neutral variant, keeps panel schedules dense in space-constrained distribution boards common in Muscat apartment towers and light industrial units.

Key Features

The Schneider Electric iDPNa RCBO is built around design priorities that matter most to residual current protection specifiers in Oman and the GCC:

• The iDPNa RCBO combines Type A residual current detection with thermal-magnetic overcurrent protection in one DIN-rail device.
• A visible mechanical trip indicator distinguishes an earth-fault trip from an overcurrent trip during inspection.
• The integrated test button allows routine verification of RCD sensitivity without disconnecting the circuit.
• Compact Multi 9 modular width reduces panel footprint compared with separate RCD plus MCB combinations.
• Multiple trip curve options, including B and C curves, support coordination with downstream loads.
• Rated sensitivity options, including 30 mA, support both equipment protection and personnel safety applications.
• Robust short-circuit breaking capacity suits distribution boards in commercial and light industrial buildings.
• Compatibility with Acti9 accessories allows auxiliary contacts and remote tripping to be added where needed.

Industrial Applications

The Schneider Electric iDPNa RCBO is specified extensively in final distribution circuits across residential towers, commercial office fit-outs, and light industrial facilities throughout Oman, wherever combined earth-fault and overcurrent protection is required on a single feeder without dedicating extra panel width to a separate RCD. Electrical contractors favor the iDPNa RCBO for retrofit projects because it slots into existing Multi 9 rail layouts without redesigning the distribution board.

Working closely with plant engineers in the region, Seven Star LLC distributes the Schneider Electric iDPNa RCBO to panel builders, MEP contractors, and plant operators throughout Muscat, Sohar, and Salalah, supporting district cooling plants, RO desalination facilities, oil and gas installations, commercial towers, and hospital complexes across the GCC. Specifiers in Oman can source the Schneider Electric iDPNa RCBO through Seven Star LLC on request, with lead time confirmed at quotation and technical support with selection.

Technical Specifications

The table below summarizes the key technical parameters of the Schneider Electric iDPNa RCBO relevant to specification and procurement.

Request a Quote for Schneider Electric Multi 9 iDPNa RCBO

Facility engineers and procurement teams in Oman and across the GCC can request a formal RFQ for the Schneider Electric iDPNa RCBO directly from Seven Star LLC’s instrumentation and low-voltage division. We supply on request with lead time confirmed at quotation, provide the full technical datasheet on request, and offer pre-sales engineering support to confirm compatibility before order placement. With fast quotation turnaround and technical support, Seven Star LLC supports the Schneider Electric iDPNa RCBO across its full lifecycle, from specification and quotation through delivery, commissioning assistance, and after-sales spares.

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