Bticino MEGATIKER series industrial distribution protection equipment

Basic Information and General Characteristics

Applicable standards: comply with international standards such as CEI EN 60947-2 (circuit breakers) and CEI EN 60947-3 (isolating switches);

Core specification range:

Rated current (In): 16A-1600A, covering small, medium to large distribution scenarios;

Short circuit breaking capacity (Icu): 36kA-100kA (415Vac), suitable for different short-circuit risk environments;

Pole configuration: 3P, 4P, 3P+N, meeting single-phase/three-phase distribution needs;

Universal installation and protection:

Installation method: DIN35 rail installation (M1/M2/MW63/MW160), panel installation (M3-M5/MW250+);

Protection level: Front end/fixture IP20, some accessories (emergency handle) IP55;

Environmental adaptability: working temperature -25~70 ℃, storage temperature -25~85 ℃ (circuit breaker)/-40~85 ℃ (isolating switch);

Compatibility: The new product is fully compatible with the old model, supports panel retrofit, and does not require additional adaptation.

Detailed explanation of core product series

（1） Circuit Breaker Series (Core Products)

Divided into three categories based on protection types, covering full current specifications, the key parameters are shown in the table below:

Circuit breaker type series model rated current (In) breaking capacity (Icu) core protection function special characteristics

Hot magnetic M1 160 16-160A 16/25kA overload (thermal trip), short circuit (magnetic trip) DIN35 rail installation, supporting leakage module

Hot magnetic M2 250 100-250A 25/36kA overload, short circuit, optional leakage protection compatible with BTDIN series parallel installation

Hot magnetic M3 125-250 16-250A 36/50/70/100kA overload, short circuit, leakage integrated with newly added patented technology of “active breaking capability”

Hot magnetic M4 630 250-630A 36/50/100kA overload, short circuit, optional leakage module pull-out version, supports motor control

Hot magnetic M5 1600 630-1600A 50/70/100kA overload, short circuit, remote tripping suitable for large industrial distribution, supporting neutral line protection

Electronic M2 250/M3 250 40-250A 25/36/50/70/100kA overload (adjustable Ir), short circuit (adjustable Isd), leakage, ground fault integrated energy measurement, LCD display

Electronic M4 630/M5 1600 250-1600A 36/50/100kA multi-stage protection (Li/Lsi/Lsig), dynamic selectivity supporting MODBUS remote monitoring

Magnetic protection MP1-MP5 6.3-1600A 25-100KA short circuit instantaneous protection designed specifically for motor protection, without overload tripping

Key functional differences:

Thermomagnetic type: No power supply required, relying on bimetallic strips and electromagnetic action, suitable for harsh environments;

Electronic: supports fine parameter adjustment (overload current Ir, short circuit delay Tsd), integrated energy measurement (current/voltage/power/energy consumption/THD);

Magnetic protection only: It only responds to short circuits and high currents, and is used to avoid overload and accidental tripping scenarios such as motor startup.

（2） Isolation switch series

It is divided into two categories: MEGATIKER (circuit breaker integrated breaking function) and MEGASWITCH (independent breaking), with the following core parameters:

Series model range Rated current (In) Installation method Core characteristics

MEGATIKER MS1 160-MS5 1600 160-1600A panel installation and circuit breaker coordination, supporting mechanical interlocking

MEGASWITCH MW63 63A DIN35 rail is compact in size and compatible with the BTDIN series

MEGASWITCH MW160 100-160A DIN35 rail visible breaking status, optional auxiliary contacts

MEGASWITCH MW250-MW1600 160-1600A panel installation supports large section cables (up to 4x240mm ²)

Core functions: Safe disconnect circuit, isolated power supply, some models support release expansion, meeting emergency disconnect requirements.

（3） Auxiliary protection and control equipment

Leakage protection:

Integrated module: Built in circuit breaker (Type A-S), leakage current I Δ n 0.03-3A, delay Δ t 0-3s;

Independent relay: G701N/Q, compatible with external ring transformers, supports pre alarm (50% I Δ n);

ATS switching control unit:

Model: M7000CBNCU03 (2 power supplies+2 circuit breakers), M7000CBNCU04 (2 power supplies+3 circuit breakers);

Function: Dual power automatic switching, generator start stop control, voltage monitoring, supports USB/Wi Fi/RS485 remote management;

Communication interface:

M7COM/M7TIC/ELE: Convert circuit breaker data to MODBUS protocol, support fault recording and remote parameter adjustment;

PM1TS: Centralized display module that can manage the electrical parameters of 8 devices.

Core technical characteristics

Selective protection:

Logical selectivity: Electronic circuit breakers achieve inter level coordination through wired communication to avoid over level tripping;

Dynamic selectivity: High/Low options available, optimized for break coordination through delay adjustment;

Time current selectivity: The electronic version supports fine adjustment of overload delay (Tr) and short circuit delay (Tsd);

Measurement and monitoring:

Integrated full parameter measurement of electronic circuit breakers: current (I1-I3-IN), voltage (U1-U3-V1N), power (Ptot/Qtot), energy consumption (Ep/EQ), harmonic distortion rate (THDV/THDI);

Data output: LCD local display+MODBUS remote transmission, supporting real-time monitoring;

Installation and maintenance optimization:

Pull out version: M3-M5 supports three positions of “connect test pull out”, and fault replacement does not require power outage;

Hot swappable design: auxiliary contacts and release devices can be installed with electricity;

Anti misoperation: Mechanical interlocking and padlock devices comply with electrical safety regulations.

Accessory system (universal across the entire series)

Covering three categories: electrical assistance, mechanical operation, and connection protection, meeting installation, control, and maintenance needs:

The accessory type represents the scope of adaptation for the core functions of the product

Electrical auxiliary contact (M7X01) status signal feedback for all series of circuit breakers

Electrical auxiliary release (M7S/M7U) remote disconnection/undervoltage protection M1-M3 series

The electrical auxiliary delay module (M7000MR) has a tripping delay of 800ms to avoid misoperation of the M1-M5 series

Mechanical operation rotary handle (M7R series) manual opening and closing, emergency operation full range

Mechanical operation motor control (M7M/M7475P) electric opening and closing, supporting 24-230Vac/dc M2-M5 series

Connect protection terminals (M7A/M7430) and connect large section cables to M3-M5 series

Connection protection fixture (M7X50/M7400) copper/aluminum cable compatible, anti loosening full range

Connection protection cover (M7C series) contact protection, IP20 level full series

Technical parameter supplement (key general parameters)

Overload protection: adjustable from 0.8-1In for thermal magnetic type and 0.4-1In (1A step size) for electronic type;

Short circuit protection: Magnetic trip current 400A (In ≤ 40A) or 5-10In (In>40A), electronic Isd 1.5-10Ir adjustable;

Leakage protection: I Δ n 0.03-3A, Δ t 0-3s, supports instantaneous/delayed tripping;

Mechanical lifespan: 20000-25000 cycles (manual), 4000-8000 cycles (electric).