TKDM5E series intelligent moulded-case circuit breaker (MCCB)-Taikai Electric Appliance-Dedicated to low-voltage equipment

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TKDM5E series intelligent moulded-case circuit breaker (MCCB)

The TKDM5E series intelligent Moulded-case circuit breaker (MCCB) is suitable for AC 50Hz circuits with a rated insulation voltage of 1000V, a rated voltage of AC 415V or less, and a rated working current of 800A or less. It is generally used for power distribution, distributing electrical energy, and protecting lines and power equipment from damage caused by overloads, short circuits, and undervoltage faults. It can also be used in locations with infrequent line switching and infrequent motor starting. The circuit breaker has all the intelligence of an electronic system: precise measurement and analysis functions, convenient access to important information, and communication via open protocols, maximizing the optimization and management of the power system.

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TKDM5E series intelligent moulded-case circuit breaker (MCCB)

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Product Details

Product Introduction

The TKDM5E series intelligent Moulded-case circuit-breaker (MCCB) is suitable for 50Hz AC circuits with a rated insulation voltage of 1000V, rated voltage AC415V and below, and rated working current 800A and below. It is generally used for power distribution, protecting lines and power equipment from damage caused by overloads, short circuits, and undervoltage faults. It can also be used in places with infrequent line switching and infrequent motor starting.

The Circuit-breaker possesses all the intelligence of an electronic system: precise measurement and analysis functions, convenient access to important information, communication through open protocols, etc., maximizing the optimization and management of the power system.

Standards Compliance

GB/T 14048.1 Low-voltage switchgear and controlgear Part 1: General rules

GB/T 14048.2 Low-voltage switchgear and controlgear Part 2: Circuit-breakers

GB/T 14048.4 Low-voltage switchgear and controlgear Part 4-1: Contactors and motor starters Electromechanical contactors and motor starters

GB/T 14048.5 Low-voltage switchgear and controlgear Part 5-1: Control circuit devices and switching elements Electromechanical control circuit devices

GB/T 22710 Electronic controllers for low-voltage circuit-breakers

Environmental Verification

GB/T 14597 Climatic environmental conditions for electrical products at different altitudes

GB/ T 20645 Special environmental conditions Technical requirements for low-voltage electrical appliances for plateau use

GB/T 2423.1 Environmental testing of electrical and electronic products Part 2: Tests Method Test A: Low temperature

GB/T 2423.4 Environmental testing of electrical and electronic products Part 2: Test methods Test Db: Alternating Damp heat (12h+12h cycle)

GB/T 2423.18 Environmental testing of electrical and electronic products Part 2: Test methods Test Kb: Salt spray, alternating (sodium chloride solution)

Standard working conditions

Ambient temperature: Normal -5℃~+40℃, Extreme -25℃~+70℃;

Installation altitude: Not exceeding 5000m (derating required for altitudes exceeding 2000m);

At a maximum temperature of +40℃, the relative humidity of the air does not exceed 50%, and at lower temperatures, Higher relative humidity is permissible, for example, 90% at 20℃. Special measures should be taken for condensation occasionally caused by temperature changes;

Pollution degree: Level 3;

Circuit-breaker protection level IP20, terminal cover protection level IP40;

Usage category: B;

Installation category: Class Ⅲ;

Installation vertical inclination not exceeding 5°;

Transportation and storage conditions: Not lower than -40℃, not higher than 80℃;

1 Base, 2 Top cover, 3 Operating mechanism, 4 Current transformer (protection/measurement/power transformer), 5 Intelligent controller, 6 Display unit, 7 Arc extinguishing chamber, 8 Static contact, 9 Rotating shaft (dynamic contact), 10 Backup protection system

Performance Advantages and Product Features

Precise Measurement

The Circuit-breaker monitors various power parameters of the power grid system in real time;

Current: (0.05~1.2)In Accuracy up to ±0.5%;

Voltage: AC(5~690)V Accuracy up to +0.5%;

It has an independent high-precision metering module to ensure metering accuracy;

Monitors harmonic distortion rate to ensure power quality;

Each current transformer is optimized according to its specific task. The technology integrates air-core current transformers used for measurement, which can obtain extremely accurate measurement values and higher reliability;

Display Unit

The Circuit-breaker has a built-in display unit, which can realize various local and remote display modes.
LCD display: The display is intuitive and clear, facilitating quick reading of electrical parameters.

Convenient Communication

The Circuit-breaker has an RS485 port, which can be matched with various communication protocols: MODBUS-RTU, DL/T645, DL/T 698, etc.;

It has low-power wireless communication (Bluetooth) function and can be expanded with infrared communication function, HPLC high-speed carrier function, and can realize the following functions:

Remote signaling: (Dis)connection, fault status indication;

Remote control: Disconnection;

Remote measurement: I, U, F, P, E, THD;

Remote adjustment: Remote adjustment of power parameters;

Independent design of protection, measurement, and communication functions

The intelligent circuit incorporates independent protection, measurement, and communication microprocessor modules, improving the stability of system operation;

Functional current transformers: metering current transformers, protection current transformers, power supply current transformers, providing more reliable electrical signals for the chip;

Equipped with an independent power supply module, the circuit breaker ensures normal circuit operation under no-load conditions;

Topology

Can realize upper and lower level relay protection, accurate fault location, selective switching and other functions.

Data storage and analysis functions

Realizes the storage of electrical parameters such as current, voltage, and power, providing operation and maintenance personnel with corresponding information query and fault judgment.

Environmental monitoring

Various sensing sensors can be expanded to respond to temperature, humidity and other environmental conditions in a timely, accurate and comprehensive manner, with temperature protection.

Green and environmentally friendly design

The product complies with the EU ROHS standard Conduct product design and production, in line with environmentally friendly production processes.

Model and meaning

TKD
1

M
2

5
3

E
4

250
5

P
6

3
7

300
8

A
9

Serial number	Description	Model meaning
1	Enterprise code	TKD:Shandong Taikai Electrical Appliance Co., Ltd.
2	Product category	M: Moulded-case circuit-breaker (MCCB)
3	Design SN	5
4	Trip unit code	E: Electronic trip unit
5	frame size	250、400、630、800
6	Operation mode code	No code: Direct operation of the handle P: Electric operating mechanism Z: Rotary handle operating mechanism
7	Pole number	3: 3 poles 4: 4 poles
8	Internal accessory code	300: No accessories Others see the trip method and internal accessories table
9	Communication protocol code	A: MODBUS-RTU B: DL/T 645 C: DL/T 698

Functional loss

Model	Energized current (A)	Power loss (W)
Model	Energized current (A)	Front panel wiring	Rear panel wiring	Plug-in wiring	Pull-out wiring
TKDM5E-250	250	50.6	50.6	50.8	—
TKDM5E-400	400	52.8	52.8	53.1	72.9
TKDM5E-630	630	71.4	71.4	71.7	91.5
TKDM5E-800	800	115.2	115.2	115.5	135.5

High altitude derating factor

If the altitude exceeds 2000m applicable to Stand working conditions, the electrical performance of the circuit breaker can be corrected according to the table below;

Altitude (M)	2000	3000	4000	5000
Power frequency voltage (V)	3000	2500	2000	1800
Working current correction factor	1	0.94	0.88	0.83
Short-circuit breaking capacity correction factor	1	0.83	0.71	0.63

Main technical parameters and performance indicators

Model		TKDM5E-250	TKDM5E-400	TKDM5E-630	TKDM5E-800
Enclosure current In (A)		250	400	630	800
Setting current Ir (A)		100A~250A adjustable	160A~400A adjustable	250A~630A adjustable	320A~800A adjustable
Rated insulation voltage Ui (V)		AC 1000V
Rated impulse withstand voltage Uimp		8000V
Pole number		3、4
Rated voltage Ue (V)		AC 400V
Rated ultimate breaking capacity Icu (kA)	AC 400、AC415	65	65	75
Rated ultimate breaking capacity Icu (kA)	AC 400、AC415	50	50	50
Rated short-time withstand current Icw (kA)	0.5s	5	—	—
Rated short-time withstand current Icw (kA)	1s	3	5	8	10
Category of use		B	B	B
Mechanical life (times)		7500	5000	4000
Mechanical life (times) *	Maintenance-free	12500	8000	6000
Mechanical life (times) *	With maintenance	20000	20000	20000
Dimensions (mm)	L	180	267	292
	W	3P:107,4P:142	3P:150,4P:198	3P:210,4P:280
	H	96	118	121
Arcing distance		≤50	≤100	≤100
Arcing distance		0(with terminal cover)

*According to GB14048.1, the term "life" refers to the probability of the number of operations that an electrical appliance can complete before repair or replacement of parts.