IDM1E, IDM8E plastic case electric terminal circuit breaker

Scope of application

◆IDM1E and IDM8E plastic case electronic circuit breakers (hereinafter referred to as circuit breakers) are suitable for infrequent switching and infrequent starting of motors in circuits with AC 50Hz (or 60Hz), rated insulation voltage of 800V, rated working voltage of 690V and below, and rated working current to 800A. The circuit breaker has overload long-delay inverse time limit, short-delay short-delay inverse time limit, short-delay short-delay fixed time limit, short-circuit instantaneous and undervoltage protection, residual current protection (optional), and phase-loss protection (optional), which can protect the line and power supply equipment from damage, and the circuit breaker has ⻬ complete and precise protection characteristics, which can improve the reliability of power supply and avoid unnecessary power outages. The "Z" type control is equipped with a communication outlet and can carry out "four remote controls" to meet the requirements of the control center and the automation system.

◆The circuit breakers are divided into two types, M type (higher breaking type) and H type (high breaking type), according to their high and low rated limit short circuit breaking capacity. The circuit breaker has the characteristics of small size, high breaking capacity, short working arc and anti-vibration.

The circuit breaker can be installed vertically (i.e., vertically) or horizontally (i.e., horizontally).

◆The circuit breaker has the function of isolation, and its corresponding symbol is

◆The circuit breaker cannot be inverted into the line, that is, only 1, 3, 5 are allowed to connect to the power line, 2, 4, 6 to the load line.

Circuit breaker meets standards

◆IEC60947-1 and GB/T14048.1 "General Provisions for Low-voltage Switchgear and Controlgear

◆IEC60947-2 and GB14048.2《Low-voltage switchgear and control equipment low-voltage circuit breakers》and Appendix F《Additional requirements for overcurrent protection circuit breakers with electricity

◆IEC60947-5.1 and GB14048.5 "Low-voltage switchgear and controlgear control circuit appliances and switching elements

Model number and meaning

Normal working environment

◆Elevation：≤2000m

◆Ambient temperature: -5℃~+40℃

◆Can withstand the influence of humid air

◆Can withstand the influence of salt mist and oil mist

◆The installation category of the main circuit of the circuit breaker is III, and the installation category of the remaining auxiliary circuits and control circuits is II.

◆The relative humidity of air does not exceed 50% at the highest temperature +40℃, and a higher relative humidity can be allowed at a lower humidity, and special measures should be taken for the condensation occasionally created due to the temperature change

◆The maximum inclination is 22.5°.

◆In the place where there is no danger of explosion and the medium is not sufficient to corrode metallic and insulating gases and conductive dusts

◆In the place where there is no rain and snow attack

Normal working environment

◆The intelligent controller is the core component of the molded case circuit breaker, which is applied to motor protection or distribution protection, realizing measurement, protection, control and communication functions in one, so that the line and power supply equipment are protected from overload, short circuit, grounding and other fault hazards.

◆Adopt MCU microprocessor control, stable and reliable performance: the intelligent controller can self-power, as long as a phase is energized, when the current is not less than 20% of its rated value, it can ensure the normal operation of the protection function.

◆Selective cooperation with three-stage protection: the circuit breaker using category B and other short-circuit protection devices connected in the same circuit have selective cooperation under short-circuit conditions; the overload long-delay anti-time-limit, short-circuit delay (anti-time-limit, fixed time-limit), short-circuit instantaneous and other protection function parameters are adjusted.

◆Three protection parameters can be set for action current and action time, and can be adjusted in 4-10 steps: the user can set and adjust the controller according to the requirements of the load current, and can also choose to turn off the corresponding function according to the requirements of the user (customized function, need to be specified by the user when ordering).

◆Major current instantaneous release function: When the circuit breaker is closed or in operation, if a short-circuit large current (≥20Inm) is encountered, the magnetic release mechanism of the circuit breaker can be directly released, so that the double protection is more reliable and safe.

◆With the function of test (test) of decoupling: DC12V voltage is input to test the action characteristics of the circuit breaker.

◆Fault self-diagnosis function: to protect and detect the working status and operation of the intelligent controller itself.

◆With pre-alarm indicator and overload indicator: when the load current reaches or exceeds the set value, the corresponding light guide column will export the light source.

◆Double-gap technology of flux converter: more reliable and stable operation, elimination of misoperation, reliable decoupling and small power.

◆High protection accuracy: overload protection, short circuit short delay protection action time accuracy ±10%; short circuit instantaneous protection action value accuracy ±15% depending on action current.

Optional function (based on IDM1E, IDM8E communication type)

◆With temperature monitoring and protection function: when the ambient temperature exceeds the set value (default setting 85℃), the controller will output an alarm photoelectric signal or make the circuit breaker break.

◆Double-way wireless source signal output function: for sending signal (or alarm), capacity AC230V5A.

◆with overload thermal memory function: overload thermal memory function, short circuit (short delay) thermal memory function.

◆With fire shunt excitation function: overload alarm does not decouple (provide a pair of no-source contacts) and provide shunt excitation decoupling function.

◆With communication function: standard RS232, RS485, Modbus fieldbus protocol.

◆Can be connected to a hand-held programmer: to set various protection parameters of the circuit breaker and perform nearly 10 fault inquiries and various status displays, etc.

◆Can be connected to an intelligent control module: conversion of optically isolated contact signal output, including programmable D0 output function.

◆High-grade type with LCD display module

Detailed explanation of functions

◇ High precision measurement of three-phase voltage, three-phase current, active power, reactive power, apparent power, power factor, frequency and other electrical parameters

◇ Positive and negative active/reactive energy metering

◇ Time sharing electric energy measurement, time sharing electric energy timing meter reading

◇ Measurement of total harmonic riding rate (THD) of three-phase voltage and three-phase current, 2-31st odd harmonic component

◇ Provide digital tube or LCD display and local data query

◇ Intuitive menu and simple key operation

◇ Current and voltage ratio programmable

◇ Provide multi loop leakage current temporary control

◇ Multi loop control node is provided, which can be used for alarm, trip and other control

◇ Support fire linkage, and cut off the fault circuit remotely

◇ Support RS-485 communication and Modbus RTU protocol

◇ Support switching value input, switching value output, analog quantity transmission output and electric energy pulse output

◇ Easy installation, simple wiring and small quantities

◇ Auxiliary power supply: AC/DC80V-270V, AC220V, AC380V, AC100V

◆ Circuit breaker opening and closing state detection function (optional function)

The controller can detect the current opening and closing state of the circuit breaker and upload it to the upper computer network in real time.

Product function configuration table

●BASIC FUNCTIONS ○ OPTIONAL FUNCTIONS

Structure and logo introduction

◆Circuit breaker positive switch

Note:

◆ The overload delay action current Ir1 can be adjusted from gear 4 to gear 10 according to the different rated current of the circuit breaker;

◆ The delay action time t1 can be adjusted by moving into gear 4;

◆ Short circuit short time-delay action current Ir2 can be adjusted by entering gear 10;

◆ The short delay action time t2 can be adjusted by entering gear 4;

◆ Short circuit instantaneous action current Ir3 can be adjusted by entering gear 8, 9 or 10;

◆ The pre alarm action current Ir0 can be adjusted by entering gear 7;

◆ Test end, used for tripping test (test).

Communication interface and external module application and networking of intelligent circuit breaker

◆ IDM1E and IDM8E communication intelligent molded case circuit breakers are equipped with communication connectors according to MODBUS communication protocol. When IDM1E and IDM8E communicable intelligent molded case circuit breakers are not used for group communication and are used separately, the holding programmer can set the protection characteristics of the circuit breaker through communication connection. When IDM1E and IDM8E communication intelligent molded case circuit breakers are used for group communication, they can be directly connected to the corresponding field bus; For the field buses with different protocols, the protocol conversion module can be selected, and the MODBUS protocol can be connected to the corresponding field bus after conversion.

◆ When IDM1E and IDM8E communication intelligent molded case circuit breakers independently use the protection parameter settings of the circuit breaker, professional personnel shall use ID-T programming controller to connect according to the following diagram, and then operate according to the operating instructions of the programming controller.

◆ Communication group of IDM1E and IDM8E series of communication intelligent molded case circuit breakers

The distribution group can be connected by referring to the following diagram. Different protocol modules can be selected for different protocols, and MODBUS can be converted to PROFIBUS-DP and other protocols.

◆Communication two sub-wiring diagram

Note: The communication module needs to be used with communication type controller, ID-PT module and RS485 converter to realize the remote control function.

Main performance parameters of electric terminal type intelligent circuit breaker table

Power loss

High altitude capacity reduction

◆High altitude capacity reduction factor
Altitude exceeds 2000m applicable to the working environment, the electrical performance of the circuit breaker can be corrected by referring to the following table.

Electronic decoupler characteristics

◆Characteristics of the release device

Overload long-delay inverse time, short-delay inverse time, short-delay fixed time, short-circuit instantaneous action and other protection functions can be set by the user to form the required protection characteristics; the neutral overcurrent protection current and time parameters are 100% automatic tracking of the phase line setting value. The characteristics of the decoupler are shown in the following figure.

Long-delay overcurrent protection inverse time action characteristics Table 4

Short-delay overcurrent protection characteristics Table 5

Short-circuit transient protection action characteristics Table 6

Release type and internal accessory code

Notes.

◆The first three digits of the striker type and internal accessory code indicate the electronic striker with three-stage protection; the last two digits indicate the internal accessory code, and no accessory is indicated by 00 (disconnect switch).

◆ Specifications 328 in IDM1E, IDM8E-400, 348 in IDM1E, IDM8E-630, 800, and 368 in IDM1E, IDM8E-400, 630, 800 have three pairs of auxiliary contacts (i.e., three normally open and three normally closed); the number of auxiliary contacts for the remaining specifications is: two sets for 400 and above, and one set for 250 and below.

◆Two pairs of auxiliary contacts (i.e. two normally open and two normally closed) can be provided for 320 specifications of IDM1E, IDM8E-125 and 250, but it must be specified when ordering.
◆If the internal accessories cannot be provided or satisfy the needs of the customer, more auxiliary functions can be provided through the intelligent controller. The intelligent controller of this series can provide the following functions: auxiliary signal for closing and dividing, detachment function, and fault signal for various protection functions (detailed in the section on the functions of the 傺).

Shape and mounting dimensions

◆IDM1E, IDM8E-160 (M, H) plate front wiring (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

◆IDM1E, IDM8E-160 (M, H) behind the board wiring (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

◆IDM1E, IDM8E-160 (M, H) inserted type (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

Note: The shape, mounting, and hole size of the Behind-the-Board wiring and Behind-the-Board inserts are based on the attached physical size.

◆IDM1E, IDM8E-250 (M, H) plate front wiring (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

Note: The module is a communication module

◆IDM1E, IDM8E-250 (M, H) behind the board wiring (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

◆IDM1E, IDM8E-250 (M, H) Insertion type (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

Note: The shape, mounting, and hole size of the Behind-the-Board wiring and Behind-the-Board inserts are based on the attached physical size.

◆IDM1E, IDM8E-400 (M, H) plate front wiring (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

◆IDM1E, IDM8E-400 (M, H) Insertion type (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

◆IDM1E, IDM8E-400 (M, H) Insertion type (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

Note: The shape, mounting, and hole size of the Behind-the-Board wiring and Behind-the-Board inserts are based on the attached physical size.

◆IDM1E, IDM8E-630, 800 (M, H) plate front wiring (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

◆IDM1E, IDM8E-630, 800 (M, H) behind the board wiring (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

◆IDM1E, IDM8E-630, 800 (M, H) Insertion type (three-pole, four-pole) X-X, Y-Y for three-pole circuit breaker center

Note: The shape, mounting, and opening dimensions of the Behind-the-Board wiring and Behind-the-Board Insert type are subject to the attached physical size, and the related size in the attachment is for reference only.

Product internal and external accessories

◆Auxiliary contacts

Note: 400A and above circuit breakers, according to user needs, yi group can be installed two pairs or four pairs of contacts

◆Auxiliary contact technical parameters

Table 9 Auxiliary contact current parameters

Table 10 Electrical life of auxiliary contacts

Table 11 Auxiliary contact switching and breaking capacity

◆Auxiliary contact wiring diagram

◆Alarm contacts

The agreed heating current of the alarm contact is 3A, and the rated operating current is 0.3A when the rated operating voltage is AC 400V.

◆Alarm contact wiring diagram

When the circuit breaker is normally closed, the contact does not act, only after the self by the release (or fault tripping), the contact ⽅ change the original state, i.e., normally open to close, normally closed to open, after the circuit breaker again, the contact to restore the original position.

◆Divided excitation decoupler

Generally installed in phase A of the circuit breaker, when the rated control power supply voltage is between 70% and 110%, the shunt excitation decoupler should make the circuit breaker reliably decouple under all operating conditions.

Control voltage: AC50Hz230V400VDC24V220V Note: When the power supply of the control circuit is DC24V, the following diagram is recommended for the design of the shunt excitation control circuit.

kA: DC24V intermediate relay with contact current capacity of 1A.

K: The mini-switch in series with the coil inside the shunt release is a normally closed contact, which is automatically disconnected when the circuit breaker is shunted and closed when the circuit breaker is closed.

◆Undervoltage detriggers

At 35% to 70% of the rated control supply voltage, the undervoltage detriggers should operate reliably and disconnect the circuit breakers. At 35% of the rated voltage, the circuit breaker should be reliably prevented from closing. When the supply voltage is equal to or greater than 85% of the rated voltage, the circuit breaker should be ensured to close.

Control voltage: AC50Hz230V400VDC110V220V

Warning: The under-voltage release must be energized before the breaker can be re-buckled and closed, otherwise the breaker will be damaged!

◆Electric operating mechanism and rotating handle operating mechanism

External configuration modules for smart circuit breakers are shown (optional accessories)

◆ID-T type handheld programmer

The ID-T handheld programmer is used for on-site operation or parameter programming of intelligent circuit breakers, and has functions for automatic device search, power monitoring, communication status indication, automatic disconnection of remote communication, confirmation of working authority, and display of various parameter inquiries. It is easy to carry and can be used for power department or power user control and management with Chinese and English operating interface.

◆Divided excitation module

The module can be used in conjunction with a controller with split excitation to realize the split excitation function.

◆External leakage module

The external leakage module is used in combination with the controller with leakage type to realize the leakage function.

◆Communication Module

RS485 isolated conversion, used in the controller communication group grid or when using a programmer.

◆ID-PT型智能控制模块

ID-PT type intelligent control module adopts standard rail mounting. The intelligent control module is fed with optical isolation signal, and various alarm and circuit breaker breaking and closing signals are output with contact signal as well as with programmable D0 output function.

◆Installation of internal and external accessories for circuit breakers 

Table 13 Name of circuit breaker with accessories and its installation position

Selection of the cross-sectional area for connecting m-wires and cables

Table 14 Selection of busbar

Table 15 Selection of cable wires

Use and Maintenance

◆The various characteristics and accessories of the circuit breaker are fixed by the manufacturer and should not be adjusted arbitrarily in use.

◆When the handle is in the self-release position, the handle should be triggered in the disconnecting direction, and then the circuit breaker will be re-buttoned before it can be closed.

◆If the product is damaged or cannot be used normally due to manufacturing quality problems during the warranty period, please contact the company for repair or replacement

Ordering Instructions

◆Please write down the model specification of circuit breaker and the order quantity. When ⽋ voltage decoupler, sub-excitation decoupler or electric operating mechanism is used, please indicate the voltage value of working voltage or control power supply voltage. For example: IDM1E, IDM8E-400M/3300Z400A communication type, 10 units of CD2 electric operating mechanism.

◆Please state that the surrounding air temperature is one of the following: the upper limit exceeds +40℃ or the lower limit is lower than -5℃.