Schneider MGNEA9C45C1630CA Residual Current Circuit Breaker

Schneider MGNEA9C45C1630CA Integrated Residual Current Circuit Breaker with Overcurrent Protection (RCBO)

Product Line: Easy9 EA9C45 Integrated RCBO

Model Breakdown:

MGNEA9C45 = Upgraded Easy9 1P+N integrated RCBO; C16 = C-curve, 16A rated current; 30 = 30mA residual current; CA = Type A residual protection (plain C stands for Type AC)

✅ Core Technical Parameters

Poles: 1P+N (DPN, phase + neutral), 2 modules / 36mm width

Rated current: 16A

Tripping curve: Type C (magnetic trip: 5~10In; for lighting & general socket circuits)

Rated operational voltage: AC230V, 50Hz

Rated residual operating current: 30mA (high sensitivity for personal shock protection)

Residual current type: Type A (detects AC sinusoidal leakage + pulsating DC leakage; suitable for variable-frequency appliances, switch-mode power supplies, chargers, small EV charging circuits)

Rated short-circuit breaking capacity Icn: 4.5kA

Protection functions: Overload protection + short-circuit protection + earth leakage protection (3-in-1)

Mounting: 35mm DIN rail

Max wire cross-section: 16mm² copper cable; tightening torque: 2.5N·m; top-in bottom-out wiring

Endurance: Electrical & mechanical life: 20,000 cycles

Standards: GB16917, IEC61009; with CCC certification

📌 Selection Differentiation (Critical)

MGNEA9C45C1630C: Type AC, only detects AC leakage; for pure resistive lighting & socket circuits

MGNEA9C45C1630CA: Type A; preferred for phone chargers, inverter air conditioners, water heaters, water purifiers, small EV charging circuits (mandatory for modern residential electrical installations)

📍 Typical Application Scenarios

Residential indoor socket circuits, kitchen & bathroom circuits, single-phase power distribution in small retail premises.

Not suitable for direct-on-line starting of high-power motors.

⚠️ Replacement Options

1. Direct same-series replacement: MGNEA9C45C1630CA (Type A)
2. Domestic equivalent alternatives: Chint NXBL-32 1P+N C16 30mA Type A; Delixi HDBE-40LE, etc.
3. Upgraded Schneider series: iC65N Vigi (iC65N + separate residual current attachment, 6kA breaking capacity)

📋 Troubleshooting Guide

1. Trips immediately after closing: Earth leakage fault (Type A is more sensitive to DC leakage), or live-neutral cross-connection
2. Intermittent tripping under load: Minor line-to-earth leakage, or internal power supply board leakage from connected equipment
3. Cannot close the switch: Short circuit or overload; disconnect downstream loads before retesting
4. Test button (T): Press once per month; the breaker should trip normally

Schneider MGNEA9C45C1630CA (EA9C45 1P+N C16 30mA Type A) vs Other Brands’ 1P+N RCBOs

Product positioning: Easy9 contractor-grade integrated RCBO, electronic Type A, 4.5kA breaking capacity, 2 modules (36mm), neutral pole non-switched

Comparison scope: Chint NXBL, Delixi HDBE, Legrand, Siemens 5SU1, ABB 1P+N RCBOs

1. Common Structural & Wiring Characteristics (All 1P+N Models)

✅ Shared features: Only the live (L) pole is disconnected during tripping; neutral (N) pole remains continuous. The neutral pole has no overload/short-circuit protection. Strict L/N polarity is required; polarity reversal is forbidden. All models are 2-module (36mm) DIN rail mounted, 30mA instantaneous trip, C-curve.

⚠️ This is an inherent design of 1P+N breakers, not exclusive to Schneider. It differs fundamentally from 2P RCBOs (which cut both live and neutral poles).

2. Key Differences Between Brands

(1) Residual Current Type (Most Common Pitfall)

This Schneider model: Type A (CA suffix). Detects both AC leakage and pulsating DC leakage; compatible with chargers, inverter AC, LED drivers, small EV chargers and switch-mode power supplies. This is the standard Type A required for modern residential & high-end renovation projects.

Many entry-level domestic 1P+N breakers: Default Type AC, only responding to sinusoidal AC leakage. They will fail to trip when DC leakage occurs from electronic loads, creating hidden safety risks.

Full Model List for MGNEA9C45 Series (Original Schneider Order Codes)

(1) C Curve | Type A (CA suffix, mainstream residential model)

(2) C Curve | Type AC (C suffix, legacy model for pure AC loads)

(3) D Curve | Type A (CA suffix, for motors & impulse loads)

(4) Derived K-type (Both live & neutral poles switched, Type AC)

MGNEA9C45C1630CK

MGNEA9C45C2030CK

Unified Technical Specifications for the Whole Series

Poles: 1P+N (DPN); width: 36mm (2 modules)

Breaking capacity: Icn = 4.5kA

Leakage type: Electronic, instantaneous trip, 30mA

Wiring: Max 16mm² copper wire; tightening torque: 2.5N·m

Voltage: AC230V, 50Hz

Construction: Monoblock integrated RCBO (not a MCB plus separate RCD attachment)

Phase-out Notice

1. Old part numbers without the MGN prefix (EA9C45C1630C) have been upgraded to the new MGNEA9C45 range.
2. Low-current Type AC variants are gradually being discontinued. New projects are recommended to specify CA Type A.

Quick Selection Guide

1. General sockets, kitchen/bath circuits, inverter appliances → C curve + CA (Type A)
2. Pure resistive incandescent lighting loads → Type C (AC) is acceptable
3. Water pumps & small motors → D curve + CA (Type A)