Differential switch type A 2P 40A 300ma

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Differential switch type A 2P 40A 300ma

Function

Differential switches are devices that are placed at the beginning of lines and protect against unacceptable leakage currents. They protect people from electrocution.

Operation

In the event of a leakage current with some form of pulsed residual direct current, an imbalance will appear in the primary turns of the torus, which will generate a residual magnetic field in the torus. This residual magnetic field in turn generates a voltage and a current in the secondary whorl which solicits the relay. This relay in turn solicits the trigger device and opens the contacts under spring pressure.

Performance

• Type A; Type AS
• Rated current In (A) 16, 25, 40, 63, 80, 100
• Fault current (mA) 10, 30, 100, 300, 500, 1000
• Rated voltage One 2P: 230 V; 4P: 230/400V
• Minimum working voltage UBmin 2P: 127 V; 4P: 190V
• Mechanical/electrical life 20000/10000
• Tropicalization according to IEC 60068-2-28/2-30 in DIN 40046 95%RH under 55°C
• Connection range max. flexible/rigid wires 35-50 mm²
• Poles 2, 4
• Type A shock wave resistance: 250A 8/20μs; 200A 0.5μs - 100kHz; Type S: 3000A 8/20μs
• Ambient temperature -25 to 55 °C
• 2P weight: 220g; 4P: 385g

Cut-off characteristics

• Next EN 61008
• Rated current engage/trigger Im=500A
• Residual rated current switch/trigger I?m?500A for 16 to 40A; I?m=800A for 63 to 100A
• Fuse-protected short circuit resistance Inc=10000A at 230/400V fuse 80A gG
• Withstands an I²t of 22500 A²s - 3000A
• All Diff-o-Jump devices meet these values. Only on devices up to 40A the values are screen-printed. According to the RGIE these values must not appear on devices over 40A.

Components

• Entrance terminal
• Switch: fixed and mobile contact
• torus with primary and secondary whorls
• relay
• Output terminal
• Control button: with free stroke mechanism solicits switch
• Test push button

Extensions

• Auxiliary contacts
• Remote trigger module
• Minimum tension coil
• Door contact
• Motor control
• Bar set systems

Normalization

The differential switch (Diff-o-Jump type A and type S) complies with NBN EN 61008 and NBN 819 standards and has received CEBEC approval on the basis of these standards. In NBN standards, a differential switch is called a differential ground circuit breaker. The Diff-o-Jump meets the international standards IEC 1008 and EN61008.