Schneider A9F18216

: iC65N 2P C16A Schneider A9F18216 Miniature Circuit Breaker

First, it should be clarified that A9F18216 is a miniature circuit breaker (MCB) of the iC65N series, not an RCBO (Residual Current Circuit Breaker with Overcurrent protection). An RCBO is an integrated device with overload, short-circuit and earth leakage protection, while A9F18216 only provides overload and short-circuit protection. For earth leakage protection, it must be used with an additional Vigi iC60 or QuickVigi iC60 residual current module.

Model Code Breakdown

Core Technical Specifications

Product Features & Functions

1. Reliable Protection: Provides overload and short-circuit protection to prevent electrical fires and equipment damage
2. Type C Curve: Suitable for power distribution, lighting circuits and resistive loads, with good inrush current tolerance
3. Compact Design: 2-module width, saving space in distribution boards
4. VisiTrip Indicator: Red mechanical window shows trip status for quick fault diagnosis
5. Multiple Wiring Methods: Supports front, rear and rail-mounted wiring to meet various installation needs
6. Wide Operating Temperature Range: -25°C to +40°C, adaptable to various environments

Difference from RCBO and Earth Leakage Protection Solutions

To upgrade A9F18216 to a system with earth leakage protection, you may choose:

QuickVigi iC60 2P 16A 30mA module (A9Q41216, 1.5 modules, space-saving)

Vigi iC60 2P 16A 30mA module (A9V41216, 3 modules, standard version)

Applications

Suitable for overload and short-circuit protection in final distribution systems, especially for:

Lighting circuits in residential and commercial buildings

Circuits for small power equipment and resistive loads

Branch protection in distribution boards

Applications requiring flexible combination with earth leakage modules

Key Installation & Operating Instructions

1. Mounted on standard 35mm DIN rail
2. Operating temperature range: -25°C to +40°C
3. Pollution degree: 3
4. Rated impulse withstand voltage (Uimp): 6kV
5. Wiring capacity: max. 25mm² cable
6. Mechanical endurance: 20,000 operating cycles

A9F18216 is a commonly used 2P 16A Type C MCB from Schneider’s Acti9 series, offering reliable overload and short-circuit protection. If earth leakage protection is required, a corresponding residual current module must be added, or an RCBO from the iC65N Vigi+ series (e.g., A9D11216) can be selected directly.

Supplementary Information for Schneider A9F18216: Official Ordering, Full Series List & Chinese Domestic Alternatives

1. Official Ordering Information

2. Full Model List of iC65N Series (A9F Prefix)

The iC65N series is categorized by pole number. Order code rule: A9F + [Pole Code] + [Current Code]

Pole codes: 11=1P, 12=2P, 13=3P, 14=4P

Current codes: 06=6A, 08=8A, 10=10A, 13=13A, 16=16A, 20=20A, 25=25A, 32=32A, 40=40A, 50=50A, 63=63A

1P Models (A9F181xx)

2P Models (A9F182xx)

3P Models (A9F183xx)

4P Models (A9F184xx)

Special Models (Type D / High Breaking Capacity)

3. Chinese Domestic Brand Alternatives (2P C16A MCB)

Key Selection Guidelines for Alternatives

1. Matching breaking capacity: Ensure alternative ≥6kA, same as iC65N
2. Matching tripping curve: Type C for power/lighting; Type D for motors
3. Dimension compatibility: All 2 modules (36mm), DIN rail mount, fits distribution boards
4. Complete certification: Must have CCC; CE recommended for industrial use
5. Wiring capacity: Ensure max. wiring ≥25mm² to meet site requirements
6. Earth Leakage Protection Upgrade Solutions

Two options to upgrade A9F18216 with earth leakage protection:

Option 1: MCB + Leakage Module Combination

Option 2: Direct Replacement with RCBO

A9F18216 is the standard 2P C16A model in the Schneider iC65N series with clear ordering information. The series covers various pole numbers and current ratings. Abundant Chinese domestic alternatives are available for flexible selection based on project budget and quality requirements. Earth leakage protection can be achieved by adding a leakage module or replacing with an RCBO to ensure safe and reliable electrical systems.

Full Model List of Schneider A9F18216 in the Same Series (iC65N Series)

1. Model Coding Rule Explanation

The coding rule for A9F-prefixed order codes of Schneider iC65N series MCBs is as follows:

2. Full Model List (By Pole Number)

2.1 1P Models (A9F[17/18/19]1xx)

2.2 2P Models (A9F[17/18/19]2xx)

2.3 3P Models (A9F[17/18/19]3xx)

2.4 4P Models (A9F[17/18/19]4xx)

3. Special Versions (Breaking Capacity / Function Expansion)

4. Unified Key Technical Specifications

All A9F-prefixed iC65N models share the following core parameters:

Breaking capacity (Icu): 6kA (400V AC)

Rated voltage: 230/400V AC

Frequency: 50/60Hz

Dimensions: 1P=1 module (18mm), 2P=2 modules (36mm), 3P=3 modules (54mm), 4P=4 modules (72mm)

Mounting: DIN rail mounting

Degree of Protection: IP20

Tripping type: Thermal-magnetic (overload: bimetal strip; short-circuit: magnetic coil)

Applicable standards: IEC 60898-1, GB 14048.2

5. Selection Guide
6. Tripping Curve Selection

Type B: For pure resistive loads (e.g., incandescent lamps)

Type C: For general power and lighting loads (most commonly used)

Type D: For inductive loads such as motors and transformers

2. Pole Number Selection

1P: Protects line only, for single-phase lighting circuits

2P: Protects line + neutral, for single-phase socket circuits

3P: Protects three phases, for three-phase power circuits

4P: Protects three phases + neutral, for three-phase four-wire systems

3. Breaking Capacity Selection

Type N (6kA): For general residential and commercial buildings

Type H (10kA): For industrial sites or distribution systems near transformers

Type L (4.5kA): For simple lighting systems