Australia 
Hager 1-pole 25A Centre-Off Modular Changeover Switch (bottom common) for safe manual transfer between two 230 V AC sources or loads. Compact 1-module (17.5 mm) design with screw terminals (1.8 Nm). Rated AC21/AC22 25 A, Ui 440 V, Uimp 4 kV; Icc 0.37 kA, Icm 0.52 kA. IP20, 50-60 Hz. Durable: 200k mechanical, 25k electrical ops. Accepts 1.5-16 mm² conductors. Operating -20 to 50 °C.
EAN
3250615510754
Packaging
1 Piece
Modular Changeover Switch 1P 25A Centre-Off Bottom Common 230V AC 1 Module SFB125
Phase out product: please contact your electrical wholesaler for availability
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Technical properties
Architecture
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Number of poles1
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Type of pole1P
Electric current
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Rated current25 A
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Rated conditional short-circuit current Icc with gl-gG fuses0,37 kA
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Acceptable current rating AC21 category A25 A
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Acceptable current rating AC21 category B25 A
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Acceptable current rating AC22 category A25 A
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Acceptable current rating AC22 category B25 A
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Rated short-circuit making capacity Icm under 240 V AC according to IEC 60947-30,52 kA
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Rated short-time withstand current Icw 1s IEC 609470,37 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 Ue230 - 230 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 modules1
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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Width17,50 mm
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Depth70 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 IN0,90 W
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Power loss per pole at In0,90 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 SFB125
1-pole, 25A Centre Off Modular Changeover Switch with Bottom Common Point
PDF -
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