The Hager CFC440J residual current circuit breaker 4-pole 40A 0.3A type AC is compared with similar protective devices from Hager, EATON, KOOP Elektro, and Kanlux. All these products share the primary purpose of safeguarding residential and commercial electrical installations against earth leakage faults and electric shocks. The main differences lie in their pole count, rated current, residual operating current sensitivity, and current type classification, which determine their suitability for specific distribution board requirements.
⚙️ The specifications comparison covers pole count, rated current, residual current sensitivity, and protection type.
| Parameter | Hager CFC440J | Hager CEC440J | EATON PFIM | KOOP Elektro FSS | Hager CEC463J | Kanlux KRD10 | Practical significance |
|---|
| Poles | 4-pole | 4-pole | 4-pole | 2-pole | 4-pole | 2-pole | Four-pole models are designed for three-phase networks, while two-pole models are suited for single-phase circuits. |
| Rated current | 40A | 40A | 40A | 40A | 63A | 25A | A 40A rating suits standard loads, 63A handles heavier industrial or commercial loads, and 25A is meant for lighter circuits. |
| Sensitivity | 0.3A (300mA) | 0.1A (100mA) | 30mA (0.03A) | Not specified | 0.1A (100mA) | 0.3A (300mA) | A 30mA sensitivity protects against direct contact, whereas 100mA and 300mA are used for fire protection and indirect contact safety. |
| Current type | Type AC | Type AC | Type A | Type AC | Type AC | Type AC | Type AC responds to sinusoidal alternating residual currents, while Type A also detects pulsating direct currents. |
◎ The suitability and use cases comparison helps identify which product matches specific electrical installation needs and safety requirements.
| Use case | Recommended product | Why |
|---|
| Three-phase network requiring fire safety protection at 300mA | Hager CFC440J | Provides four-pole protection for 40A circuits with a 0.3A threshold, effectively preventing fire hazards caused by earth leakage. |
| Three-phase network requiring higher sensitivity (100mA) | Hager CEC440J | Shares the same pole count and amperage base but offers increased sensitivity to smaller leakage currents. |
| Three-phase network requiring maximum direct-contact safety (30mA) | EATON PFIM-40/4/003-A-MW | Offers 30mA high sensitivity and Type A protection for reliable personal safety against electric shocks. |
| Single-phase electrical distribution | KOOP Elektro FSS 2P 40A or Kanlux KRD10-2/25/300-AC | Two-pole configurations fit single-phase applications where three-phase switching is unnecessary. |
The Hager CFC440J residual current circuit breaker 4-pole 40A 0.3A type AC is ideal for three-phase electrical installations requiring reliable 40A circuit protection with a 0.3A threshold for effective fire hazard prevention. Choose this model if you need a dependable four-pole Hager breaker for standard distribution board safety rather than a high-sensitivity device intended for direct touch protection.
