TKDM5 series Moulded-case circuit breaker (MCCB)-Taikai Electric Appliance-Dedicated to low-voltage equipment

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TKDM5 series Moulded-case circuit breaker (MCCB)

The TKDM5 series Moulded-case circuit breaker (MCCB) (hereinafter referred to as Circuit breaker) is our company's latest high-end product. The product is suitable for AC 50/60Hz, Rated voltage AC380V/AC400V/AC415V, Rated current up to 630A distribution lines, for infrequent switching and infrequent motor starting. The Circuit breaker has overload, short circuit and undervoltage protection functions, and can protect lines and power equipment from damage.

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Moulded-case circuit-breaker (MCCB)

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TKDM5 series Moulded-case circuit breaker (MCCB)

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Product Details

Overview

The TKDM5 series Moulded-case circuit breaker (MCCB) (hereinafter referred to as Circuit breaker) is a high-end product newly developed by our company. The product is suitable for AC 50/60Hz, Rated voltage AC380V/AC400V/AC415V, Rated current up to 630A power distribution lines, for infrequent switching and infrequent starting of motors. The Circuit breaker has overload, short-circuit, and undervoltage protection functions, protecting lines and power equipment from damage.

The TKDM5-HU series Moulded-case circuit breaker (MCCB) (hereinafter referred to as Circuit breaker) is a high-voltage Moulded-case circuit breaker (MCCB) newly developed by our company. The product is suitable for AC 50/60Hz circuits with a rated voltage up to 1140V and a rated current up to 630A for infrequent switching. The Circuit breaker has overload and short-circuit protection functions, protecting lines and power equipment from damage. The product is mainly used in renewable energy power generation, power supply systems in mines, metallurgy, petrochemicals, etc.

Standards Compliance

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

GB/T 14048.2 Low-voltage switchgear and controlgear Circuit breaker

Environmental Verification

GB/T 20645 Special environmental conditions Technical requirements for low-voltage circuit breakers for plateau use

GB/T 20626 Special environmental conditions Plateau electrotechnical products Part 1: General technical conditions

GB/T 14597 Climatic environmental conditions of electrotechnical products at different altitudes

GB/T 2423.1 Environmental testing of electrotechnical products Part 2: Test methods Test A: Low temperature

GB/T 2423.4 Environmental testing of electrotechnical products Part 2: Test methods Test Db: Damp heat, cyclic (12h+12h cycle)

GB/T 2423.18 Environmental testing of electrotechnical products Part 2: Test methods Test Kb: Salt mist, cyclic (sodium chloride solution)

Product Features

Operating Conditions

Operating temperature: -45°C~+70°C;

Suitable for pollution degree 3;

Passed plateau, salt spray, damp heat, and high and low temperature tests;

The entire series adopts a rotary type double-break, high-efficiency current-limiting performance structure, ensuring reliable breaking and stable operation protection for voltage levels of AC690V and above;

Significant current-limiting effect (current-limiting coefficient can reach 0.15), effectively suppressing the peak current and short-circuit energy (1t) during short-circuit breaking, enabling selective short-circuit protection between circuit breakers of different short-circuit breaking levels;

The operating mechanism is isolated from the main circuit of the circuit breaker. The handle insulation performance ensures double insulation when the user operates the circuit breaker, resulting in higher safety performance. The circuit breaker enclosure material uses recyclable thermoplastic material, which is energy-saving and environmentally friendly;

Main Technical Parameters

TKDM5 series Moulded-case circuit breaker (MCCB)

Item	Main technical parameters
Product Specifications and Models	TKDM5-250	TKDM5-400	TKDM5-630
Rated working current In (A)	32, 40, 50, 63, 80 100, 125, 140, 160 180, 200, 225, 250	225, 250, 300, 315, 320 350, 400	315, 320, 350, 400, 500, 630
Rated voltage Ue (V)	AC380V/AC400V/AC415V 50Hz/60Hz
Pole number	3P
Rated insulation voltage Ui	AC1500V
Rated impulse withstand voltage Uimp	12kV
Rated ultimate breaking capacity Icu	150kA (AC380V/AC400V/AC415V)
Rated operating breaking capacity Ics	Ics=100%Icu
Trip unit type	TMD1: Both thermal and magnetic adjustable
	TMD2: Thermal adjustable, magnetic non-adjustable
	TMD3: Thermal non-adjustable, magnetic non-adjustable

Note: For rated current 80A and below, only TMD3 type (both thermal and magnetic non-adjustable) is available.

TKDM5-HU series high-voltage Moulded-case circuit breaker (MCCB)

Item	Main technical parameters
Product Specifications and Models	TKDM5-250HU	TKDM5-320HU	TKDM5-400HU	TKDM5-630HU
Rated working current In (A)	32, 40, 50, 63, 80 100, 125, 140, 160 180, 200, 225, 250	63, 80, 100, 125, 140 160, 180, 200, 225 250, 280, 315, 320	225, 250, 300, 315 320, 350, 400	315, 320, 350 400, 500, 630
Rated voltage Ue (V)	AC660V/690V, AC800V, AC1000V, AC1140V 50Hz/60Hz
Pole number	3P
Rated insulation voltage Ui	AC1500V
Rated impulse withstand voltage Uimp	12kV
Rated ultimate breaking capacity Icu	M type: 100kA (AC660V/690V), 50kA (AC800V), 15kA (AC1000V)
	H type: 60kA (AC800V), 30kA (AC1000V), 15kA (AC1140V)
	Type R: 65kA (AC800V)
Rated operating breaking capacity Ics	Ics=100%Icu
Trip unit type	TMD1: Both thermal and magnetic adjustable
	TMD2: Thermal adjustable, magnetic non-adjustable
	TMD3: Thermal non-adjustable, magnetic non-adjustable

Note: For rated current 80A and below, only TMD3 type (neither thermal nor magnetic adjustable) is available.

Product Introduction

TKDM5 series Moulded-case circuit breaker (MCCB)

Main technical parameters:

● frame size: 250、400、63

● Pole number: 3P;

● Rated current (In): 32A~630A;

● Rated voltage (Ue): AC380V/400V/415V

Product Features:

● Modular design, the operating mechanism is completely insulated from the main circuit conductor, internal accessories and the base are completely insulated, making manual operation safer;

● Rotary double-break technology, high current limiting performance, reliable breaking of 150kA at AC380V/400V/415V

● Suitable for high altitude 5000m, can operate from -40℃ to +70℃;

● With isolation function:

Model and Meaning

TKDM5

250

300

250

Trip unit type

Moulded-case circuit-breaker (MCCB)

frame size

(250, 400, 630)

Pole number

(3 represents 3P)

Trip method and internal accessory code

Rated current

In: 32A - 630A

TMD1: Both thermal and magnetic adjustable
TMD2: Thermal adjustable, magnetic non-adjustable
TMD3: Neither thermal nor magnetic adjustable

Note: For rated current 80A and below, only TMD3 type (thermal and magnetic non-adjustable) is available.

TKDM5-HU series high voltage Moulded-case circuit-breaker (MCCB)

Main technical parameters:

● frame size: 250、320、400、630;