Schneider A9C20837 Acti9 iCT Contactor 4P 25 A 4NC 220V AC Coil

The Schneider Electric A9C20837 is a 4-pole 25 A contactor from the Acti 9 iCT range, designed for remote switching of motors, heating, and cooling loads. It features a 4NC contact arrangement with a 220-240 V AC 50 Hz control coil voltage, making it suitable for standard single-phase control circuits. The unit mounts on a 35 mm symmetric DIN rail via snap-on fitting and complies with IEC/EN 61095.

Technical specifications:

• Commercial reference: A9C20837
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Acti 9 iCT
• Product type: Contactor
• Number of poles: 4P
• Contact arrangement: 4 NC
• Rated current: 25 A (AC-7A), 8.5 A (AC-7B)
• Network type: AC
• Control circuit voltage: 220-240 V AC 50 Hz
• Rated operational voltage: 400 V AC 50 Hz
• Rated insulation voltage: 500 V AC 50/60 Hz
• Rated impulse withstand voltage: 4 kV
• Control type: Remote control (holding signal)
• Switching frequency: 100 switching operations/day
• Holding power: 4.6 VA
• Inrush power: 34 VA
• Maximum power dissipation: 1.6 W at 400 V AC
• Mechanical durability: 1,000,000 cycles
• Electrical durability: 100,000 cycles at AC-7A; 30,000 cycles at AC-7B
• Mounting: Snap-on, 35 mm symmetric DIN rail
• DIN rows: 4 (9 mm pitch)
• Width: 36 mm
• Height: 81 mm
• Depth: 60 mm
• Weight: 236 g
• IP protection rating: IP20
• Operating temperature: -5 to 60 °C
• Storage temperature: -40 to 70 °C
• Maximum operating altitude: 2000 m
• Relative humidity: 95% at 55 °C
• Pollution degree: 2
• Connection - control circuit: tunnel terminals, 1.5-2.5 mm² rigid or flexible
• Connection - power circuit: tunnel terminals, 1.5-6 mm² rigid, 1-4 mm² flexible
• Tightening torque: 0.8 N.m (control and power circuit)
• Noise level: 30 dB
• Standard: IEC/EN 61095
• Color: White
• Warranty: 18 months

Features and benefits:

• 4 NC pole configuration allows normally closed load switching for motor, heating, and cooling applications
• Snap-on DIN rail mounting simplifies installation in distribution boards without additional tools
• Local action indicator provides immediate visual feedback on contactor status
• High mechanical durability of 1,000,000 cycles ensures long service life in frequent-switching applications
• Compatible with iACTs, IATEt, IACTc, and IACTp accessories for expanded functionality
• Tropicalization grade 2 per EN 61095 and EN 60947-4-1, suitable for humid environments

Applications:

• Residential building electrical installations requiring remote load control
• Small commercial building HVAC and heating system switching
• Motor control circuits in light commercial and residential settings
• Lighting and general load control in compact distribution boards
• Cooling equipment switching in building management systems

Compliant with IEC/EN 61095 and EN/IEC 60947-4-1. Part of the Schneider Electric Acti 9 iCT range.

Also known as: Schneider A9C20837, Schneider Electric A9C20837, Acti9 iCT contactor 4P 25A, Schneider 4-pole contactor 25A.