Australia 
The Hager 4-pole 40A Centre-Off modular changeover switch with top common point enables safe source selection (e.g. mains/backup) on 400V AC systems. Rated 40A AC21/AC22, 50-60Hz, with 0.6kA Icc and 0.48kA Icm for robust switching and isolation. Compact 4-module IP20 design with screw terminals (1.5-16 mm², 1.8 Nm). Durable: 200k mechanical, 25k electrical ops. Ui 440V, Uimp 4kV, -20 to +50°C. Designed for installation in residential and commercial switchboards,suitable for DIN rail mounting.
EAN
3250615510945
Packaging
1 Piece
Hager Changeover Switch 4P 40A Centre-Off Top Common 400V AC Modular 4M SFT440
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Technical properties
Architecture
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Number of poles4
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Type of pole4P
Electric current
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Rated current40 A
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Rated conditional short-circuit current Icc with gl-gG fuses0,60 kA
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Acceptable current rating AC21 category A40 A
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Acceptable current rating AC21 category B40 A
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Acceptable current rating AC22 category A40 A
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Acceptable current rating AC22 category B40 A
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Rated short-circuit making capacity Icm under 415 V AC according to IEC 60947-30,48 kA
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Rated short-time withstand current Icw 1s IEC 609470,60 kA
Installation, mounting
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Nominal tightening torque1,80 - 1,80 Nm
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Type of bottom connection for modular devicesScrew terminal
Voltage
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Rated operational voltage Ue400 - 400 V
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Type voltage supplyAC
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Rated insulation voltage Ui440 V
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Rated impulse withstand voltage Uimp4000 V
Capacity
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Number of modules4
Safety
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Ingress Protection (IP) classIP20
Frequency
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Frequency50 - 60 Hz
Dimensions
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Height83 mm
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Width70 mm
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Depth71 mm
Equipment
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Number of NO contacts0
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Number of NC contacts0
Use conditions
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Operating temperature-20 - 50 °C
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Storage/transport temperature-40 - 80 °C
Connection
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Cross-section flexible conductor1.5 - 10 mm²
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Cross-section rigid conductor1.5 - 16 mm²
Endurance
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Number of mechanical operations200000
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Electrical durability at nominal load in AC21 in operating cycles25000
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Electrical durability at nominal load in AC22 in operating cycles25000
Power
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Total power loss under IN8,40 W
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Power loss per pole at In2,10 W
Connectivity
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Down connection alignment for modular devicesShifted terminal
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Top connection alignment for modular devicesShifted terminal
Environmental value
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Certifications and documents
Downloads
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Product image
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Product datasheet
Hager Product data sheet SFT440
4-pole, 40A Centre Off Modular Changeover Switch with Top Common Point
PDF -
Technical appendix (single product)
ChangeoverSwitch_WiringDiagrams
Technical appendix (single product) en-GB 2019-01-18
PDF55,83 kB -
Product licence
Licence for NETHERLANDS
Product licence International 2024-08-09
PDF2,53 MB -
Declaration of conformity
EU Declaration of Conformity
Declaration of conformity en-GB 2025-02-06
PDF990,73 kB
More documentation
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