The Niglon RCD4-40/30-A is a 40A 30mA Type A four-pole RCD (RCCB) for three-phase (3P+N) circuits. It provides residual current protection across all four poles, disconnecting the supply on an earth-fault to protect against electric shock and fire.

Type A sensing responds to AC and pulsating DC residual currents, with a 10kA breaking capacity at 400/415V. Manufactured to BS EN 61008-1.

Key features

• 40A 30mA Type A four-pole RCCB
• 3P+N three-phase residual current device
• Type A detects AC and pulsating DC faults
• 10kA breaking capacity
• Manufactured to BS EN 61008-1

Specification

• Rated current: 40A
• Residual operating current: 30mA
• Poles: 3P+N (four-pole)
• Sensing type: Type A
• Voltage: 400/415V AC
• Breaking capacity: 10kA
• Standard: BS EN 61008-1

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