TKDB1R-100/TKDB1R-125 series electricity meter external circuit breaker-Taikai Electric Appliance-Dedicated to low-voltage equipment

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TKDB1R-100/TKDB1R-125 series electricity meter external circuit breaker

TKDB1R-100/TKDB1R-125 series electricity meter external circuit breaker, suitable for AC 50Hz, rated voltage AC230V/400V, rated working current 125A and below distribution lines, with overload and short circuit protection functions. It automatically controls the switching on or off of the load circuit by detecting the control signals of the smart meter, realizing the functions of automatic power failure and automatic power on after payment, and simultaneously feeding back the switching on/off status signals.

Belonging Category:

External electric meter circuit breaker

Keywords:

TKDB1R-100/TKDB1R-125 series electricity meter external circuit breaker

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Product Details

Product Introduction

The TKDB1R-100/TKDB1R-125 series electricity meter external circuit breaker is suitable for AC 50Hz, rated voltage AC230V/400V, and distribution lines with a rated working current of 125A or less. It has overload and short-circuit protection functions. By detecting the control signals of the smart meter, it automatically controls the switching on or off of the load circuit, realizing the functions of automatic tripping for arrears and automatic closing after payment, and simultaneously feeding back the switching on/off status signals.

Standards Compliance

National Standard GB/T 10963.1 Electrical Accessories Overcurrent Protection Circuit Breaker for Household and Similar Locations

State Grid Q/GDW 11422 Technical specification of external circuit-breakers for electricity meters

Southern Power Grid Technical Specification for External Low-Voltage Circuit Breakers Used in Fee-Controlled Electricity Meters

China Quality Certification Center CQC 1121 Technical specification of external circuit-breakers for electricity meters

Product Functions

Features overload long-delay protection

Features short-circuit instantaneous protection

Features automatic tripping for arrears and automatic closing after payment, realizing intelligent fee control

Features fee control status indication and circuit breaker contact status indication

Features arrears tripping holding function, effectively preventing electricity theft

Features circuit breaker status feedback, realizing real-time monitoring in the background

Product Features

Small size: 100 frame 2P width only 54mm, 4P width 90mm; 125 frame 2P width 81mm, 4P width 135mm

Good Synchronization: Integrated design of mechanism and circuit breaker, good synchronization of switching on/off through internal shaft drive

Powerful functions: with manual/automatic switch, arrears tripping self-holding function and status feedback

Stable and reliable: three-phase power supply, three-phase feedback, as long as one phase power supply is normal, normal operation can be ensured

Contact indication: accurately and reliably indicates the on/off status of the contacts

Strong adaptability: conventional operating temperature -25℃~65℃, extreme environments -40℃~70℃

Bluetooth communication: low-power wireless communication module, conforms to the latest Bluetooth communication protocol of the State Grid

Stand working conditions

Ambient temperature: -25℃~+65℃, board end environment -40℃~+70℃;

安 Installation location altitude: no more than 5000m (derating is required for altitudes exceeding 2000m use);

When the highest temperature is +40℃, the relative humidity of the air shall not exceed 50%, and higher relative humidity is allowed at lower temperatures, for example, 90% at 20℃. Special measures should be taken for occasional condensation due to temperature changes;

Circuit breaker protection level IP20;

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

Model and Meaning

TKD

100

Bluetooth

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	Function Code	R: Fee control reclosing function
5	frame size	100、125
6	Breaking capacity code	No code: Standard type (6kA) H: High breaking capacity type (10kA)
7	Tripping characteristic	C type D type
8	Rated current	20A、25A、32A、40A、50A、63A、80A、100A、125A
9	Pole number	1P+N、2P、4P
10	Optional special functions	Bluetooth communication

Example of model selection:

TKDB1R-100-C80/4P 100 units;

Order TKDB1R series, frame size Rated current is 100A, Rated current is 80A, breaking capacity is 6kA, tripping type is C type, Pole number is 4 poles of electricity meter external circuit breaker 100 units.

Circuit Breaker Status Control Table (For Fee Control)

Serial Number	Phase Wire	Control Signal Wire	Initial State	State After Action	Remarks
1	AC220V	↑	Trip	Close	(From 0V to AC220V) Received closing signal
2	AC220V	AC220V	Close	Trip	Manual switch off
3	AC220V	AC220V	Trip	Close	Manual switch on
4	AC220V	↓	Close	Trip	(From AC220V to 0V) Received switch off signal
5	AC220V	↓	Trip	Trip	(From AC220V to 0V) Received switch off signal
6	AC220V	0V	Trip	Trip	0V control signal, switch on not allowed (manual)
7	AC220V →0V→AC220V	AC220V	Close	Close	Before power failure, the circuit breaker was in the ON state. After power failure and power restoration, switch off or switch off and then switch on is not allowed.
8	AC220V →0V→AC220V	AC220V	Trip	Trip	Before power failure, the circuit breaker was in the OFF state. After power failure and power restoration, switch on or switch on and then switch off is not allowed.
9	0V	/	Trip	Trip	Power failure, maintain original state
10	0V	/	Close	Close	Power failure, maintain original state

Main technical parameters

Product model	TKDB1R-100		TKDB1R-125
Rated working currentIn	20A、25A、32A、40A、50A、63A、80A、100A		80A、100A、125A
Pole number	1P+N、2P	4P	2P	4P
Rated voltageUe	AC 230V	AC 400V	AC 230V	AC 400V
Rated insulation voltageUi	500V		500V
Rated impulse withstand voltageUimp	6 kV		6 kV
Tripping type	C type		C type、D type
Rated short-circuit breaking capacityIcn	6 kA、10kA		10kA
Control circuit voltage	AC 230V 50Hz		AC 230V 50Hz
Power-on delay time	≥4s		≥4s
Automatic switch-on time	≤3s		≤3s
Automatic switch-off time	≤2s		≤2s
Mechanical life	10000 times		10000 times
Mechanical life	6000 times		4000 times
Dielectric strength	AC 2500V 1min		AC 2500V 1min
Protection level	IP20		IP20
Working process	In automatic mode, when the fee control signal is detected as 220V high level, the switch is driven to close. When the fee control signal loses 220V, the switch is driven to open. Other states are shown in the state control table.
Manual/Automatic operation	Switch the [Manual/Automatic] to automatic mode. After the arrears switch off, if payment is restored, it will automatically switch on; after other fault trips, it will not automatically switch on. Switch the [Manual/Automatic] to manual mode. After the arrears switch off, if payment is restored, it will not automatically switch on; after other fault trips, it will not automatically switch on.
Indicator light	The indicator light is on, indicating no arrears; the indicator light is off, indicating arrears or no power.
Communication function	Bluetooth communication, conforming to the national power grid communication protocol.

Protection and tripping characteristics

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

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