ABB Residual Current Circuit Breaker GSH201 AC-C16

The ABB GSH201 AC-C16 is a 1P+N-pole Residual Current Circuit Breaker with Overcurrent Protection (RCBO). It integrates three core functions: 過負荷保護, 短絡保護, および残留電流保護. With a rated current of 16A, a Type C tripping curve, and an Type AC residual current detection type, its rated residual operating current is typically 30mA (the complete model is GSH201 AC-C16/0.03). As a member of the ABB Compact Home product series, it is suitable for the protection of terminal power distribution circuits in residential and commercial buildings.

In-depth Analysis of Model Naming Convention

Segment	コード	意味
Series Identifier	GSH201	1P+N-pole RCBO of the Compact Home series
Residual Current Type	交流	Detects sinusoidal alternating residual current, suitable for pure AC loads
トリッピングカーブ	C	Tripping curve type with an instantaneous tripping range of 5-10In, applicable to conventional loads such as lighting and sockets
定格電流	16	Rated operating current of 16A
Residual Operating Current	0.03	Rated residual operating current of 30mA (some models may feature 0.01A=10mA)
ポール構成	1P+N	1 phase pole + 1 neutral pole; the neutral pole remains permanently closed, and only the phase pole can be switched off

Complete Model Example: GSH201 AC-C16/0.03, Product Code: 2TAZ220111R2164

Core Technical Parameters and Performance Indicators

パラメータのカテゴリ	Specific Value	説明
定格電圧	230/400Vと	Suitable for single-phase branches in single-phase and three-phase systems
定格電流 (で)	16あ	Continuous operating current capacity
Rated Short-circuit Breaking Capacity (アイコン)	6の	Short-circuit breaking capacity at 230/400V AC
トリップ特性	タイプC	過負荷保護: inverse time characteristic, 1.45In≤It≤1.55In (内部でつまずくことはありません 1 hour), 2.55In≤It≤2.85In (中でつまずく 2 分); 短絡保護: instantaneous tripping at 5-10In
Residual Current Protection Parameters	Type AC, IΔn=30mA	Residual current operating time: ≤0.1s (In≤40A, IΔn≤0.03A)
Rated Residual Non-operating Current (IΔn0)	15ミリアンペア	The circuit breaker shall not trip when the residual current does not exceed this value
機械的寿命	≥20,000 operations	Number of closing and opening operation cycles
電気的寿命	≥6,000 operations	Number of closing and opening operation cycles at rated current
Width Dimension	17.5mm	Standard DIN rail mounting width, 配電ボックスのスペースを節約する
取付方法	35mm DINレール	IEC準拠 60715 standard rail
動作温度	-25℃～+55℃	Adaptable to various indoor environmental conditions
保護等級 (IP Rating)	IP20	Protection against access to hazardous parts by fingers or solid foreign objects with diameter ≥12mm

Ⅲ. Core Functions and Advantages

Integration of Triple Protection Functions

過負荷保護: Achieves inverse time protection through the thermal effect of bimetallic strips, matching the thermal characteristics of cables to prevent line overheating and aging.

Short-circuit Protection: The electromagnetic release provides instantaneous protection, quickly interrupting short-circuit current to limit fault expansion.

残留電流保護: Detects residual current and trips rapidly (≤0.1s) when the current exceeds the set value (30ミリアンペア), preventing personal electric shock accidents.

Design and Safety Features

1P+N Structure: The neutral pole remains permanently closed to ensure the neutral line is not interrupted during power-off, enhancing safety.

Current Limiting Function: Quickly limits fault current during short-circuits, reducing the risk of line and equipment damage.

Test Button: Built-in test button for regular verification of the residual current protection function.

Mechanical Indication: Clearly displays the on/off status of the circuit breaker and the cause of tripping.

Reliability and Compatibility

Complies with international and national standards such as IEC 61009-1 および GB/T 16917.1.

Features the same dimensions as the ABB SH200 series miniature circuit breakers, enabling mixed installation.

Offers strong electromagnetic interference resistance to ensure stable operation in complex electrical environments.

Application Scenarios and Selection Key Points
典型的なアプリケーションシナリオ

Application Field	適用荷重	Selection Advantages
住宅用配電	Living room/bedroom sockets, lighting circuits, air conditioner branches	Residual current protection prevents electric shock; Type C curve is suitable for conventional loads
商業ビル	Office sockets, public area lighting, small commercial equipment	1P+N structure saves space; 30mA residual current protection complies with safety regulations
Light Industry	Control circuits of small machine tools, power supplies for testing equipment	Triple protection ensures equipment and personnel safety
医療施設	Power supplies for non-critical medical equipment	Some 10mA models (GSH201 AC-C16/0.01) can be used in environments sensitive to residual current

Core Selection Steps
Determine Load Type: Select Type C curve for conventional lighting and socket loads; select Type D curve for motor loads.
Calculate Load Current: Ensure the 16A rated current is greater than the actual load current (ある 20% margin is recommended).
Select Residual Current Type: Choose Type AC for pure AC loads; choose Type A or Type AP-R for loads containing DC components (例えば, electronic devices).
Determine Residual Operating Current: Select 30mA for general locations; select 10mA for humid environments or locations with high safety requirements.
Verify Breaking Capacity: Ensure the 6kA breaking capacity meets the short-circuit current requirements of the installation point.
Installation and Operation Precautions
配線仕様

Strictly distinguish between the phase pole (L) and neutral pole (N); the neutral line must be connected to the N terminal, and reverse connection is prohibited.

Ensure the circuit is de-energized before wiring; the cable cross-section should match the 16A rated current (1.5mm² copper core cable or above is recommended).

Tighten the terminal screws to the torque specified in the manual (usually 2.5N·m) to prevent overheating caused by poor contact.

運用・保守

Verify the residual current protection function using the test button after installation.

Press the test button regularly (monthly is recommended) to check if the residual current protection is functioning properly.

After a residual current trip, identify and eliminate the fault cause before manually resetting the circuit breaker.

Avoid frequent operation; inspect the circuit breaker for damage especially after a short-circuit fault.

安全上の警告

This product cannot be used for neutral line overcurrent protection of three-phase unbalanced loads.

It cannot be used as a replacement for an isolating switch; ensure all power supplies are disconnected during power-off maintenance.

It is not suitable for use in flammable and explosive environments unless special protective measures are taken.

Follow the manufacturer’s recommendations when used in conjunction with other protective devices (例えば, surge protectors).

類似製品との比較

比較項目	GSH201 AC-C16	SH201-C16 (MCB)	GSH202 AC-C16 (2P)
保護機能	過負荷 + 短絡 + Residual Current	過負荷 + Short-circuit only	過負荷 + 短絡 + Residual Current
ポール構成	1P+N	1P	2P (two phase poles)
Neutral Pole	Permanently closed	No neutral pole	Both poles can be switched off
Width Dimension	17.5mm	17.5mm	35mm
該当するシナリオ	Single-phase residential/commercial branches	Branches requiring only overload and short-circuit protection	Scenarios requiring neutral pole switching
価格帯	中くらい	低い	Medium-high

As a high-performance 1P+N-pole RCBO, the ABB GSH201 AC-C16/0.03 has become the ideal choice for terminal power distribution in residential and commercial buildings due to its compact design, triple protection, 高い信頼性. It can not only effectively prevent overload and short-circuit faults but also provide 30mA residual current protection to safeguard personal and property safety. 選択中, the tripping curve, residual current type, and residual operating current should be reasonably chosen based on the load type, current magnitude, and safety requirements to ensure optimal protection effectiveness and system compatibility.