Miniature Circuit Breakers RI50
Technical documentation
Certificates
Miniature Circuit Breakers RI50
Miniature circuit breakers RI50 series are used for switching, conducting and switching-off the current not only in normal operating conditions but also in special conditions in a circuit such as short circuit.
They are used for overcurrent protection of house installations, industrial electric distributions and devices.
- RI51 single pole
- RI51N single pole + neutral
- RI52 two-pole
- RI53 three-pole
- RI53N three-pole + neutral
- RI54 four pole
- Number of poles: 1, 1+N, 2, 3, 3+N, 4
- Tripping characteristics: B, C
- Rated currents: 6 A - 63 A
- Rated insulation voltage: 500 V
- Rated frequency: 50/60 Hz
- Rated short-circuit breaking capacity: 6 kA
- Mounting: 35 mm DIN rail acc. to EN 60715
- Due the low permissible L2T (let through) values can be used smaller size of metal boxes
- Low let-through energy under short-circuit conditions ensures longer life of contacts and reduces thermal stresses in the distribution circuit
- RI50 reduces the energy loss due to a unique contact configuration and reduction of hot spots. Watt loss per pole for RI50 is far lower than that specified in IEC/EN 60898
- An optional operating position
- IP20 degree of protection; IP40 degree of protection after installation in a distribution box
- An additional color indication of the position of main contacts (red: contacts closed — green: contacts open)
