Residual-current circuit breaker Eti-Polam KZS-2M 2P 6A B 30mA type AC (002173101)

Eti-Polam KZS-2M 2P 6A B 30mA type AC is a compact two-pole residual-current circuit breaker that combines overcurrent protection with earth-leakage detection. Designed for single- and two-phase circuits, this device responds to overloads and short circuits while detecting alternating residual currents of 30 mA to reduce the risk of electric shock and fire in household and light commercial installations.

Advantages

The KZS-2M integrates both short-circuit/overload protection and residual-current detection in a single module, saving distribution board space and simplifying wiring. With a B characteristic and 6 A rated current it offers reliable tripping for general-purpose circuits and lighting lines. The 30 mA sensitivity type AC detects standard alternating leakage currents, providing a balance between safety and nuisance tripping for typical residential and small-business environments.

Suitable for

• Protection of lighting circuits in homes and apartments
• Small household appliances and socket circuits with low current rating
• Two-phase or single-phase distribution boards in light commercial premises
• Situations requiring both overcurrent and earth-leakage protection in a compact device

Key specifications

• Poles: 2-pole device for single- and two-phase circuits
• Rated current: 6 A
• Tripping characteristic: B curve (suitable for general-purpose circuits)
• Residual current sensitivity: 30 mA, Type AC (detects alternating residual currents)
• Combined function: overcurrent protection plus residual-current detection in one unit
• Form factor: compact DIN-rail mountable module for distribution boards

How to use

Install the KZS-2M into a compatible DIN-rail distribution board according to local electrical codes. Connect the line and neutral conductors to the appropriate terminals for a two-pole installation, ensuring tight and secure terminations. Verify polarity and that the device rating matches the circuit load (6 A) before switching on. After installation, test the residual-current function using the manufacturer’s or regulation-prescribed test procedure to confirm proper operation.

Usage recommendations

Use this device on circuits where 6 A rated protection is appropriate; avoid using it on circuits with higher continuous currents. Periodically test the residual-current function and inspect connections for signs of overheating or loosening. For environments with pulsating or DC-containing leakage currents consider a type A or type B device instead of type AC.