Detailed introduction：

Scope of application 

SMGM1E series of intelligent plastic shell circuit breakers (hereinafter referred to as open circuit), for AC 50HZ (or 60Hz), its rated insulation voltage of 800V, rated voltage 690V and below, rated current to 800A circuit for frequent conversion And the motor is not frequently used for starting. Short circuit short delay time definite time, short circuit instantaneous and undervoltage protection function and residual current protection (optional), phase failure protection function (optional), can short circuit short delay time inverse time, short circuit short delay delay time, Protection circuit and power supply equipment from damage, circuit breaker protection features complete, accurate, can improve the reliability of power supply, to avoid unnecessary power outages, including "Z, B" type control with communication interface can be "four remote" Meet the requirements of control centers and automation systems.

Breaker in accordance with its rated ultimate short-circuit breaking capacity of the level, divided into M-type (higher breaking type), H-type (high breaking type) two. The circuit breaker with small size, high breaking capacity, short arc, anti-vibration and so on.

Circuit breakers can be mounted vertically (ie, vertical), can also be installed horizontally (ie, cross-loaded).

Circuit breakers have isolation function, the corresponding symbol is

Circuit breakers can not be inverted. That is only allow 1.3,5 connected to the power cord, 2,4,6 then the load line.

 

Main feature

○ Selection: SMGM1E electronic molded case circuit breaker with three sections of the protection function, the use of class B circuit breakers and connected to the same circuit in the other short-circuit protection

The device has a selective cooperation under the short circuit condition;

○ With three-phase protection action current, action time selection: the user can set according to the load current requirements of the release to adjust;

○ self-powered: electronic release from the circuit breaker itself to provide energy, current signals and release work from the power supply installed in the circuit breaker in the current transformer;

○ "pre-alarm" indication: when the actual operating current flowing through the circuit breaker reaches or exceeds the pre-alarm operating current Iro, the "pre-alarm" light on the circuit breaker cover

The diode is indicated in yellow;

○ with overload indication; when the load current exceeds the long-term delay action current, the light-emitting diode on the circuit breaker cover is indicated in red;

○ High-current instantaneous tripping function: When the circuit breaker is closed or in operation, the case of short-circuit high current (≥ 20Inm), circuit breaker trip by the direct release of the electromagnetic;

○ Installation with interchangeability: Dimensions and CBRM1 series Molded Case circuit breaker specifications the same

 

Model and meaning 

According to the number of products is divided into three poles and four poles. (N pole) type: N pole over-current protection current, the time parameter 100% automatically track the phase setting, and the N-pole and the other three together with the points (N very first after the sub-points) ;

Rated current: SMGM1E-100 has 32,63,100A (user can be customized to 125A); SMGM1E-225 is 225A (user can be customized to 250A);

SMGM1E-400 is 400A; SMGMIE-630 is 630A; SMGM1E-800 is 800A; SMGM1E-1250 is 800A, 1000A, 1250A;

There are five types of wiring: front wiring, back wiring, plug-in front connection, plug-in board rear connection and withdrawing wiring.

According to whether the circuit breaker with accessories and accessories without Annex two.

Accessories include internal accessories and external accessories; internal accessories are shunt release, undervoltage release, auxiliary contacts, alarm contacts four;

 

The external accessory includes a rotary handle operating mechanism and an electric operating mechanism

The main technical performance indicators

 

 

Release mode and accessories code

Note: 1. Release mode and the internal code of the first three digits that have three-stage protection of the electronic release;

SMGM1E-400 in the 328, SMGM1E-630,800 and 1250 in 348 specifications, SMGM1E-1250 in the 378 standard auxiliary contact for a pair of contacts (ie, a normally open, a normally closed), SMGM1E-400,630, 800 and

1250 in the 368 specifications auxiliary contact for the three pairs of contacts (ie three normally open, three normally closed);

 

Structure Introduction

protection:

1. Overload long time delay operation current Ir1 adjustment, according to the different rated current of the circuit breaker, from 4 files to 10 files to adjust;

2. long delay time t1 adjustment, can be adjusted 4 files;

3. short-circuit short-time action time Ir2 adjustment can be adjusted 10 files;

4. Short-time action time t2 adjustment, can be adjusted 4 files;

5. Short-circuit instantaneous Ir3 adjustment, can be 8 files, 9 files or 10 files adjustment;

6. Pre-alarm action current Ir0 adjustment, can be adjusted 7 files.

 

Electronic tripping characteristics

Inverse Time - delay Operation of Long - time Overcurrent Protection

Note: 1. Action time in line with I2T1 = (2Ir1) 2 (1.2Ir1 ≤ I)

Note: Inverse time operation tolerance ± 20%.

 

Short-circuit short-time delay time, short-circuit instantaneous action protection function, can be set by the user to set the required protection features; neutral over-current protection current, time parameters 100% automatic tracking phase line setting value. The heat release of the release is shown below.

 

Outline and mounting dimensions(mm)

Product accessories

 

Outline and mounting dimensions of electric operating mechanism (mm)

 

Rotary handle operating mechanism of the appearance and installation dimensions (mm)

Circuit breaker board after the appearance and installation dimensions (mm)

 

Circuit breaker plug-in board after the wiring shape and installation dimensions (mm)