You can find the Interactive Hall Plan 2026 here.
Miniature Circuit Breakers Series 3SB71
Description
Functions
Overload protection
Short circuit protection
Isolation
Controlling
Used in residential building, non-residential building, industry,
energy and infrastructure.
Technical specifications
Standards: IEC 60898-1, IEC 60947-2
Rated current In (A) : 0.5, 1, 1.6, 2, 4, 6, 10, 13, 16, 20, 25, 32,
40, 50, 63
Rated voltage Un (V AC): 230/400
Operational voltage (V AC): Min. 24; Max. 250/440
Rated frequency (Hz): 50/60
Rated insulation voltage (V AC): 500
Number of poles (P): 1, 1P+N, 2, 3, 3P+N, 4
Thermal operating limit (In): 1.13 - 1.45
Rated impulse withstand voltage Uimp (kV): 6
Rated switching capacity Icn (kA): 10
Degree of protection: IP20, with connected conductors
Electrical life (times): 16,000
Mechanical life (times): 35,000
Mounting position: Any
Conductor cross-sections
Solid and stranded (mm²): 0.75-35
Finely stranded with end sleeve (mm²): 0.75-25
Terminal tightening torque (N·m): 2.8
Ambient temperature (°C): -25 ~ +45, max. 95 % humidity
Storage temperature (°C): -40 ~ +75
Altitude (meters): Max 2,000
Features
The handle being sealable or equipped with padlock bracket
avoids dangerous operation changes (ON / OFF)
The handle provides a clear indication of the contact position
Adequate printing of all data on the front provides long-term
identification
Energy limiting class: 3
The emission of ionized gases is limited to the severest
restrictions: 45 mm grid distance
This MCB for household in accordance with: IEC 60898 -1, B, C
and D tripping characteristics
This MCB for industry in accordance with IEC 60947-2,
instantaneous tripping characteristics with release B: 4 In,
release C: 8 In, release D: 12 In
This MCB may be extended with:
A wide range of RCDs
Full sets of accessories
