Schneider A9Z51440 Residual Current Circuit Breaker (RCCB), Acti9 iID, 4P 40A 30

The Schneider Electric A9Z51440 is a 4-pole Residual Current Circuit Breaker (RCCB) from the Acti 9 iID range, rated 40 A with 30 mA sensitivity and a Type B-EV residual current protection class. Designed for electric vehicle charger applications, it delivers instantaneous tripping with a rated conditional short-circuit current of 10 kA at 400 V AC.

Technical specifications:

• Commercial reference: A9Z51440
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Acti 9 iID
• Product type: Residual Current Circuit Breaker (RCCB)
• Number of poles: 4P
• Rated current [In]: 40 A
• Rated voltage [Ue]: 400 V AC, 50 Hz
• Residual current sensitivity: 30 mA
• Residual current class: Type B-EV
• Trip delay: Instantaneous
• Rated conditional short-circuit current: 10 kA
• Rated impulse withstand voltage [Uimp]: 6 kV
• Rated insulation voltage [Ui]: 500 V
• Dimensions (WxHxD): 72 x 88 x 79 mm
• Weight: 415 g
• Mounting: DIN rail, clip-on, 8 modules at 9 mm pitch
• Connection: Double terminal - top 1-35 mm² rigid / 1-25 mm² flexible; bottom 1-25 mm² rigid / 1-16 mm² flexible
• Tightening torque: 3.5 N.m; strip length: 14 mm
• IP rating: IP20 / IP40 in modular enclosure (IEC 60529)
• Operating temperature: -25 to 60 °C
• Mechanical endurance: 20,000 cycles; electrical endurance: 15,000 cycles
• Certifications: VDE, NF, IMQ, KEMA, CCC, KC

Features and benefits:

• Type B-EV residual current class specifically rated for electric vehicle charging equipment
• Independent (self-powered) tripping technology - operates without an auxiliary power supply
• Contact position indicator and trip indicator provide clear local ON/OFF status readout
• Locking device option available to prevent unauthorized switching
• Neutral conductor positioned on the left side for system-compatible wiring

Applications:

• Protection of electric vehicle charging points and wallboxes
• Outgoing and group supply circuits in residential and commercial distribution boards
• EV charging infrastructure panels in commercial car parks and industrial facilities

Compliant with IEC 61008-2-1, IEC/EN 62423, and EN 61008-2-1. Part of the Schneider Electric Acti 9 range.

Also known as: Schneider A9Z51440, Schneider Electric A9Z51440, Acti9 iID Type B-EV RCCB, 4-pole 40A 30mA EV RCCB.