TKDB1E(L)-125 series IoT circuit breaker-Taikai Electric Appliance-Dedicated to low-voltage equipment

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TKDB1E(L)-125 series IoT circuit breaker

The TKDB1E(L) series Internet of Things circuit breaker (hereinafter referred to as "circuit breaker") is a new generation of product newly developed to meet the various requirements of the ubiquitous power Internet of Things for low-voltage power distribution. It integrates protection, measurement, remote control, communication, and fire prevention and early warning monitoring functions. This circuit breaker is suitable for the control and isolation of low-voltage terminal power distribution. In addition to overload, short circuit, leakage, overvoltage, and undervoltage protection functions, it also has high-precision metering functions for current, voltage, power factor, and temperature, etc. It can be applied to system integration and docking in smart energy, smart homes, smart campuses, smart hotels, smart communities, and electrical fire safety supervision, realizing remote control, real-time alarm, statistical calculation, energy saving management, and big data analysis.

Belonging Category:

Internet of Things Circuit Breaker

Keywords:

TKDB1E(L)-125 series IoT circuit breaker

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Product Details

Product Introduction

The TKDB1E(L) series Internet of Things circuit breaker (hereinafter referred to as "circuit breaker") is a new generation of product independently developed to meet the various requirements of the ubiquitous power Internet of Things for low-voltage power distribution. It integrates protection, measurement, remote control, communication, and fire warning monitoring functions. This circuit breaker is suitable for the control and isolation of low-voltage terminal power distribution. In addition to overload, short circuit, leakage, overvoltage, and undervoltage protection functions, it also has high-precision metering functions for electrical parameters such as current, voltage, power factor, and temperature. It can be applied to the system integration and connection of smart energy, smart homes, smart campuses, smart hotels, smart communities, and electrical fire safety supervision, realizing remote control, real-time alarm, statistical calculation, energy saving management, and big data analysis.

Standards Compliance

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

GB/T 16917.22 Household and similar general-purpose residual current operated circuit-breakers (RCBO) with overcurrent protection - Part 22: General rules for the applicability of RCBOs whose operating characteristics depend on the supply voltage

CQC 1148 Moulded-case circuit-breaker (MCCB) with remote control function

CQC 1149 Residual current operated circuit-breaker with overcurrent protection and remote control function

GB/T 32902 Residual current protective circuit-breaker (CBAR) with automatic reclosing function

Q/ZTT 2239 Technical Requirements and Inspection Standards for Differentiated Backup Power Equipment for Base Stations

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: Test methods - Test A: Low temperature

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

GB/T 2423.17 Environmental testing of electrical and electronic products - Part 2: Test methods - Test Kb: Salt mist

Stand working conditions

Ambient operating 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 shall not exceed 50%. At lower temperatures, higher relative humidity is permissible, e.g., 90% at 20℃. Special measures should be taken for condensation occasionally caused by temperature changes;

Pollution degree: Grade 3;

Circuit breaker protection level: IP20;

Usage category: A;

Installation category: Class Ⅲ;

Installation vertical inclination shall not exceed 5°;

Transportation and storage conditions: Not lower than -40℃, not higher than 70℃;

Model and Meaning

TKD

125

GSM

Serial Number	Description	Model Meaning
1	Enterprise code	TKD: Shandong Taikai Electrical Appliance Co., Ltd.
2	Product Category	B: Miniature Circuit Breaker (MCB)
3	Design SN	1
4	Trip unit code	E: Electronic trip unit
5	Function code	L: With residual current protection (optional)
6	frame size	125
7	Product code	DC: DC circuit breaker, AC type without code
8	Trip type	Type C, Type D
9	Rated current (A)	6, 10, 16, 20, 25, 32, 40, 50, 63, 80, 100, 125
10	Pole number	1P, 2P, 3P, 4P
11	Communication function	Standard RS-485, optional GSM, WIFI, Bluetooth

Protection function and trip characteristics

TKDB1E-125 trip characteristics

Protection parameters	Set value
Overload long-delay current	Ir=6, 10, 16, 20, 25, 32, 40, 50, 63, 80, 100, 125A
Overload long-delay time	tr=5~100s adjustable, step 1s
Short-circuit instantaneous current	Ii=(4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)xIr
Short-circuit short-delay current	Isd=(2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)xIr
Short-circuit short-delay time	tsd=60~500ms adjustable, 1ms step

Type	Test current	Time limit	Expected result	Notes
Overload long delay	1.05Ir	t≤1h (In≤63A)	No tripping	Cold state
	1.05Ir	t≤2h (In > 63A)	No tripping	Cold state
	1.30Ir	t < 1h (In≤63A)	Tripping	Immediately after the test, the current increases steadily within 5 s
	1.30Ir	t < 2h (In > 63A)	Tripping
Instantaneous short circuit	8Ii	t≤0.2s	No tripping	Cold state, current is switched on by closing the auxiliary switch
Instantaneous short circuit	12Ii	t < 0.2s	Tripping
Short-circuit short-delay	0.8Isd	tsd±20%	No tripping	Cold state, current is switched on by closing the auxiliary switch
Short-circuit short-delay	1.2Isd	tsd±20%	Tripping

Note: The reference calibration temperature of the circuit breaker is 30℃, and the temperature error is ±5 ℃.

TKDB1EL-125 tripping characteristics

Type	Test current	Time limit	Expected result	Notes
C, D	1.13In	t≤1h (In≤63A)	No tripping	Cold state
	1.13In	t≤2h (In > 63A)	No tripping	Cold state
	1.45In	t < 1h (In≤63A)	Tripping	Immediately after the test, the current increases steadily within 5 s
	1.45In	t < 2h (In > 63A)	Tripping
C, D	2.55In	1 s < t < 60 s (In≤32A)	Tripping	Cold state
C, D	2.55In	1 s < t < 120 s (In > 32A)	Tripping	Cold state
C	5In	t≤0.1 s	No tripping	Cold state, current is switched on by closing the auxiliary switch
D	10In	t≤0.1 s	No tripping
C	10In	t < 0.1 s	Tripping	Cold state, current is switched on by closing the auxiliary switch
D	20In	t < 0.1 s	Tripping

Note: The reference calibration temperature of the circuit breaker is 30℃, and the temperature error is ±5℃.

Main technical parameters

Item	TKDB1E-125	TKDB1E-125DC	TKDB1EL-125
Rated voltage(V)	AC230V, AC400V	DC12~72V	AC230V, AC400V
Rated working current(A)	6, 10, 16, 20, 25, 32, 40, 50, 63, 80, 100, 125
Pole number	1P, 2P, 3P, 4P	1P, 2P, 3P, 4P	2P, 3P, 4P
Rated residual operating current I _Δn	/	/	30, 50, 100, 300 (Without 30mA range with reclosing function)
Rated residual non-operating current I _Δno	/	/	50%I_Δn
Rated insulation voltage Ui	500V	500V	500V
Rated impulse withstand voltage U _imp	4kV	4kV	4kV
Closing time	≤3s	≤3s	≤3s
Opening time	≤2s	≤2s	≤2s
Automatic reclosing time	20s~60s	20s~60s	20s~60s
Rated ultimate breaking capacity Icu	10kA	15kA	/
Rated operating breaking capacity Ics	7.5kA	15kA	Normal type 6kA, H type 10kA
Rated short-circuit breaking capacity Icn	/	/	Normal type 6kA, H type 10kA
Trip type	Electronic type	Electronic type	Type C, Type D
Mechanical life	20000 times	20000 times	20000 times
Mechanical life	4000 times	4000 times	4000 times
Communication function	Standard RS-485, optional GSM, WIFI, Bluetooth
Metering function	Monitoring of current, voltage, leakage current, power factor, etc., accuracy: 0.5 level or above