SCHNEIDER A9R12491 Residual Current Circuit Breaker

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              • SCHNEIDER A9R12491 Acti9 iID Residual Current Circuit Breaker

                The SCHNEIDER A9R12491 is an Acti9 iID residual current circuit breaker (RCCB), rated 4 poles, 100 A, 100 mA, Type AC. It provides protection against earth-leakage faults and indirect electric shock. Schneider confirms the device is suitable for isolation applications.

                Technical Specifications

                Specification	Details
                Brand	Schneider Electric
                Model	A9R12491
                Series	Acti9 iID
                Product Type	Residual Current Circuit Breaker (RCCB)
                Poles	4P
                Rated Current	100 A
                Rated Voltage	380–415 V AC
                Frequency	50/60 Hz
                Residual Current Sensitivity	100 mA
                RCCB Type	Type AC
                Tripping	Instantaneous
                Residual Current Technology	Voltage Independent
                Neutral Position	Left
                Mounting	DIN Rail
                Standard	IEC 61008-1 / IEC 61008-2-1

                The key ratings—4P, 100 A, 100 mA, Type AC—are confirmed by Schneider Electric's official product data.

                Advantages & Features

                • 4-pole protection for three-phase circuits with neutral
                • 100 mA earth-leakage sensitivity
                • Type AC residual-current detection
                • Voltage-independent residual-current tripping
                • Red mechanical indicator for earth-fault indication
                • Suitable for electrical isolation
                • Compatible with Acti9 accessories and captive padlocking devices
                • Designed for protection against electric shock caused by indirect contact.

                Typical Applications

                • Industrial distribution panels
                • Commercial buildings
                • Three-phase electrical systems
                • Motor and machinery power distribution
                • Control cabinets
                • Earth-leakage and insulation-fault protection

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