An essential safety component of electrical systems, a residual current circuit breaker (RCCB) guards against electric shocks and fire risks brought on by ground faults.
- Function: Identifies and cuts off electrical circuits when a current leaks to the earth.
- Safety: By cutting the circuit in the event of a malfunction, it protects against electric shocks and fires.
- Working Principle: Identifies imbalances in the live and neutral wires by applying Kirchhoff's current law.
- Types: Available in AC, A, B, and F varieties to accommodate a range of leakage currents and applications.
- Applications: Used to guarantee electrical safety in commercial, industrial, and residential environments.
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Category |
Feature |
Value |
General Data |
Standards |
IEC/EN 61008-1 |
 |
Poles |
2P, 4P |
 |
Rated current In |
25 A, 40 A, 63 A |
 |
Rated residual operating current IΔn |
30 mA, 100 mA, 300 mA |
 |
Rated voltage Ue |
2P: 230V AC, 4P: 230/400 V AC |
 |
Rated frequency |
50 Hz |
 |
Rated conditional short-circuit current Inc=IΔc |
10 kA (with a SCPD) |
 |
Electrical endurance |
10,000 operations |
 |
Rated residual breaking capacity IΔm=IΔm |
1000 A |
 |
Rated impulse withstand voltage (1.2/50) Uimp |
4 kV |
 |
Dielectric test voltage |
2.5 kV |
 |
Surge current resistance (wave 8/20) |
250 A |
 |
Max. operating voltage of circuit test |
254 V AC |
 |
Min. operating voltage of circuit test |
110 V AC |
 |
Rated insulation voltage Ui acc. to IEC/EN 60664-1 |
500 V AC |
Mechanical Data |
Housing |
Insulation group II |
 |
Toggle |
Black sealable in ON-OFF position |
 |
Contact position indication |
White Marking on toggle (I ON / O OFF) |
 |
Protection degree acc. to EN 60529 |
IP20, IP40 in enclosure with cover |
 |
Mechanical endurance |
10,000 operations |
 |
Tropicalisation acc. to IEC/EN 60068-2-30 |
Severity 2 Cyclic test with 55°C/90-96% and 25°C/95-100% |
 |
Ambient temperature (with daily average ≤ +35°C) |
-25...+55°C |
 |
Storage temperature |
-40...+70°C |
Installation |
Terminal |
Cage terminal |
 |
Cross-section of conductors (top/bottom) Solid, Stranded |
35 mm⊃2;/35 mm⊃2; |
 |
Flexible |
25 mm⊃2;/25 mm⊃2; |
 |
Busbars type |
Pin and Fork Type Busbar provision |
 |
Cross-section of busbars (top/bottom) |
10 mm⊃2;/10 mm⊃2; |
 |
Tightening Torque |
2.0 Nm |
 |
Screwdriver |
No. 2 Pozidrive |
 |
Mounting |
On DIN rail 35 mm |
 |
Mounting position |
Any |
 |
Mechanical Accessories mountable |
Padlock |
 |
Supply |
Any |
Dimensions and weight |
Pole dimensions (H x D x W) |
2P: 88 x 69.2 x 35 mm; 4P: 88 x 69.2 x 70 mm |
 |
Pole weight |
2P: ~200 g; 4P: ~350 g |
Approvals |
CE marking approved |
Yes |
 |
MoIAT RoHS Certification |
Yes |
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