Schneider A9Z05440 Acti9 ID K RCCB 4P 40 A 30mA Type AC

The Schneider Electric A9Z05440 is a 4-pole Residual Current Circuit Breaker (RCCB) from the Acti 9 ID K range, rated at 40 A with 30 mA sensitivity for AC-type earth leakage protection. Designed for downstream distribution, it provides instantaneous trip operation with independent tripping technology, offering reliable personnel and equipment protection in residential and commercial installations.

Technical specifications:

• Commercial reference: A9Z05440
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Acti 9 ID K
• Product type: RCCB (Residual Current Circuit Breaker)
• Number of poles: 4P
• Neutral conductor position: Left
• Rated current [In]: 40 A
• Network type: AC
• Residual current sensitivity: 30 mA
• Trip delay: Instantaneous
• Residual current class: Type AC
• Rated voltage [Ue]: 380...415 V AC 50 Hz
• Rated insulation voltage [Ui]: 440 V AC 50 Hz
• Rated impulse withstand voltage [Uimp]: 4 kV
• Making and breaking capacity: Idm 500 A / Im 500 A
• Rated conditional short-circuit current: GL63: Inc 4.5 kA / K60: Inc 6 kA
• Impulse current: 250 A
• Network frequency: 50/60 Hz
• Mounting: Clip-on, DIN rail
• DIN rail rows: 9 mm, 8 modules wide
• Dimensions (WxHxD): 72 x 81 x 68 mm
• IP rating: IP20 (IEC 60529), IP40 in modular enclosure
• Operating temperature: -5...40 °C
• Storage temperature: -30...70 °C
• Connection: Dual connection top or bottom, 1...35 mm² rigid / 1...25 mm² flexible
• Tightening torque: 3.5 N.m
• Mechanical endurance: 5000 cycles
• Electrical endurance (AC-1): 2000 cycles
• Certifications: OVE, VDE
• Standards: EN/IEC 61008-1, EN/IEC 61008-2-1
• Weight: 347 g
• Warranty: 18 months

Features and benefits:

• Instantaneous tripping with independent trip technology ensures fast fault clearance without reliance on supply voltage.
• Type AC sensitivity detects sinusoidal residual currents, suitable for standard residential and light commercial loads.
• Clip-on DIN rail mounting simplifies installation and replacement within Acti 9 modular enclosures.
• Dual top or bottom connection accepts both rigid and flexible conductors up to 35 mm², providing wiring flexibility.
• OVE and VDE certified, meeting EN/IEC 61008-1 requirements for use across European markets.

Applications:

• Final distribution boards in residential buildings requiring earth leakage protection on 3-phase + neutral circuits.
• Commercial premises distribution panels where 4-pole 40 A earth fault protection is required.
• Industrial auxiliary circuits requiring AC-type differential protection at the outgoing feeder level.
• Modular switchboards built on the Acti 9 system platform in DIN rail enclosures.

Compliant with EN/IEC 61008-1 and EN/IEC 61008-2-1. Part of the Schneider Electric Acti 9 range.

Also known as: Schneider A9Z05440, Schneider Electric A9Z05440, Acti9 IDK 4P 40A 30mA RCCB, Schneider 4-pole residual current circuit breaker.