Technical Specifications / Parameters
Parameter Specification
Manufacturer Type Code GSH204 AC-D32/0.03
Brand / Series ABB System PRO M compact® (GSH200 Series - RCBO)
Device Type D-Curve Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
Number of Poles 4-Pole (4P) (L1, L2, L3, N)
Rated Current (In) 32 A
Tripping Characteristic (Overcurrent) D Curve (High inrush tolerance. Instantaneous magnetic tripping range: 10In to 20In, i.e., 320A to 640A).
Rated Residual Operating Current (IΔn) 30 mA (0.03A)
Residual Current Type Type AC: For sinusoidal AC residual currents only.
Rated Operational Voltage (Ue) 400 V AC (3P+N~)
Rated Breaking Capacity (Icn) 6 kA (IEC/EN 61009-1)
Mechanical Life ≥ 20,000 operations
Test Button Yes.
Mounting DIN Rail Mounting (35 mm symmetrical rail)
Module Width 72 mm (4 modules)
Standards Compliance IEC/EN 61009-1, CE, CCC, etc.
Terminals Cage Clamp Terminal.
Connectable Conductors Rigid/Flexible Copper: 4 - 25 mm² (suitable for 32A).
Ambient Temperature Range -25°C to +55°C
The ABB GSH204 AC-D32/0.03 is a 4-pole, 32A, Type AC, D-curve Residual Current Circuit Breaker with Overcurrent Protection (RCBO). This specialized device is engineered for protecting three-phase four-wire circuits that supply loads with very high inrush (starting) currents. It combines complete protection against overloads, short-circuits, and earth leakage faults in one unit. The D-curve overcurrent characteristic provides a high magnetic trip threshold, making it immune to nuisance tripping from the brief but intense startup surges typical of motors, transformers, and certain lighting systems, while the 30mA Type AC RCD component ensures critical protection against electric shock.