Hager SBN125 SBN Load Break Switch 1P 25 A DIN Rail

The Hager SBN125 is a 1-pole load break switch (disconnector) rated at 25 A and 230 V AC, designed for DIN rail installation in electrical distribution panels. It isolates circuits via a single normally-open contact, with an impulse withstand voltage of 4 kV and an insulation voltage of 440 V. Its slim 17.5 mm single-module width suits space-constrained enclosures.

Technical specifications:

• Catalog reference: SBN125
• Manufacturer: Hager
• Product type: 1-pole load break switch (disconnector), 1 normally-open contact
• Rated current (Ie): 25 A
• Rated operating voltage (Ue): 230 V AC
• Insulation voltage (Ui): 440 V
• Impulse withstand voltage (Uimp): 4 kV
• Short-circuit making capacity (Icm) at 240 V AC: 0.52 kA
• Short-time withstand current (Icw, 1 s): 0.37 kA
• Conditional short-circuit current (Inc) with series fuse: 3000 A / 40 A gG
• Frequency: 50 - 60 Hz
• Number of modules: 1
• IP rating: IP20
• Dimensions (H x W x D): 83 x 17.5 x 68 mm
• Terminal type: Screw terminals, offset orientation (upper and lower)
• Conductor cross-section, flexible: 1.5 - 10 mm²
• Conductor cross-section, rigid: 1.5 - 16 mm²
• Tightening torque: 1.80 Nm
• Operating temperature: -20 to 70°C
• Storage/transport temperature: -40 to 80°C
• Mechanical endurance: 200,000 switching operations
• Electrical endurance at rated load (AC21 / AC22): 25,000 operations
• Total power dissipation at rated current: 0.90 W
• RoHS-compliant: Yes
• REACH SVHC-free: Yes

Features and benefits:

• Single module width of 17.5 mm minimises DIN rail space consumption in crowded distribution boards
• Screw terminals accept rigid conductors up to 16 mm² and flexible conductors up to 10 mm², covering a wide range of cable sizes
• 200,000 mechanical operations and 25,000 electrical operations at rated load deliver long service life
• Offset terminal orientation on both upper and lower connections simplifies wiring in compact enclosures
• RoHS-compliant and REACH SVHC-free, meeting current European environmental requirements

Applications:

• Circuit isolation in residential distribution boards and consumer units
• Load disconnection in commercial electrical switchboards
• Main isolator duty in small distribution enclosures
• Circuit isolation in industrial control cabinets operating at 230 V AC

Also known as: Hager SBN125, 1-pole DIN rail disconnector switch, load break switch 25A 230V.