Hager ADC920T RCBO Safety Switch 20A 1P+N C Curve 6kA 30mA Type A 1 Module DIN Rail 230V

Description

Active and neutral protection in one module.

The Hager ADC920T is a 20A single-pole-plus-neutral (1P+N) RCBO combining C-curve overload and short-circuit protection with 30mA Type A earth-leakage protection, switching both active and neutral in a compact 1-module DIN rail device.

Key Features

• Rated current: 20A, single pole plus neutral (1P+N)
• C tripping curve (5–10x In)
• 6kA breaking capacity (Icn) to IEC 60898-1
• 30mA residual current, Type A (detects AC and pulsating DC)
• Rated voltage 230–240V AC (max 264V); insulation voltage 440V
• Compact 1-module width (17.7mm) DIN rail mount
• Accepts conductors 1–16mm² rigid, 1–10mm² flexible
• IP2X; 20,000 mechanical / 10,000 electrical operations

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Why it Matters

Switches active and neutral together.
The ADC920T is a 1P+N RCBO – a residual current breaker with overcurrent protection that switches both the active and neutral conductors. It combines the functions of an MCB and an RCD in one module: protecting the circuit against overload and short circuit, and disconnecting on a 30mA earth-leakage fault to guard against electric shock. Because it breaks the neutral as well as the active, it fully isolates the final circuit for safe working.

C curve and Type A leakage detection.
The C tripping characteristic trips on short circuit at 5 to 10 times rated current, the general-purpose curve suited to mixed resistive and moderately inductive loads – and a 20A rating covers the larger power sub-circuits and higher-draw appliance feeds found on most domestic and light commercial boards. Its Type A residual sensing detects both AC and pulsating DC earth-leakage currents, covering modern electronic loads, and its 6kA breaking capacity suits those installations' fault levels.

Built for Australian switchboards.
At one module (17.7mm) wide, 85mm high and 70mm deep, the ADC920T clips onto standard 35mm DIN rail. Terminals take conductors up to 16mm², it is rated IP2X with a 4kV impulse withstand, and it operates from -25°C to 70°C with 20,000 mechanical and 10,000 electrical operations of endurance. It complies with AS/NZS 61009 for RCBOs and suits residential and light commercial final circuits.

Q: What does 1P+N mean on the Hager ADC920T?
1P+N means the device protects and switches one active pole plus the neutral, breaking both conductors together to fully isolate the circuit – while still occupying just one DIN module.

Q: Is the ADC920T suitable for all switchboards?
Its 6kA breaking capacity suits most Australian domestic and light commercial boards; where prospective fault current exceeds 6kA, a 10kA device such as the Hager ADA570T is required.

Q: What does Type A mean on the ADC920T?
Type A residual current detection responds to both AC and pulsating DC earth-leakage currents, covering electronic loads that a basic Type AC device may not detect.