TKDB2Z-63 series miniature DC Circuit Breaker
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TKDB2Z-63 series miniature DC Circuit Breaker
Product Details
Scope of Application and Main Features
The TKDB2Z-63 series of miniature DC circuit breakers are suitable for low-voltage terminal power distribution systems in residential, industrial, and construction fields, and have overload and short-circuit dual protection functions.
Product Selection
TKD 1 |
B2Z 2 |
- | 63 3 |
C 4 |
32 5 |
/ | 2P 6 |
OF2+SD2 7 |
Serial Number | Description | Model Meaning |
---|---|---|
1 | Enterprise code | TKD:Shandong Taikai Electrical Appliance Co., Ltd. |
2 | Product Category | B: Miniature Circuit Breaker (MCB)、2: Design SN、Z: Represents DC |
3 | frame size | 63 |
4 | Tripping characteristics | B、C |
5 | Rated current | 1、2、3、4、6、10、16、20、25、32、40、50、63 |
6 | Pole number | 1P、2P |
7 | Attachment Code | OF2: Auxiliary contact, SD2: Alarm contact, MX+OF2: shunt release |
Dimensions

Compliant Standards
IEC60947-2、GB/T14048.2
Tripping Characteristics
Instantaneous tripping range: B type: 5 (In±20%ln) C type: 10 (ln±20%In)
Main technical parameters
short-circuit breaking capacity | Rated current | Pole number | Rated Voltage | Breaking Capacity |
---|---|---|---|---|
Rated operating breaking capacityIcs | 1~63A | 1P | DC125V/220V/250V | 7.5kA |
2P | DC250V | |||
DC440V/500V | 6kA | |||
Rated ultimate breaking capacityIcu | 1~63A | 1P | DC125V/220V/250V | 10kA |
2P | DC250V | |||
DC440V/500V | 10kA |
Mechanical life: 20000 times
Standard operating conditions
The installation altitude shall not exceed 2000m
Ambient temperature: -35℃~+70°℃
Protection level: IP20
Damp heat resistance: Class 2 (relative humidity 95% at 55℃)
No significant vibration and impact
Wiring Capacity
.35mm2 and below wires
Mounting Method
TH35mm standard rail, easy and convenient installation.
Wiring Diagram
![]() Load |
![]() 1P wiring diagram |
2P wiring diagram |
Remarks:
1) L+ positive power supply, L- negative power supply.
2) Circuit breaker positive, circuit breaker negative.
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SHANDONG TAIKAI ELECTRIC APPLIANCES CO., LTD.
Service Hotline:
86-538-8520889
Tel:
86-538-8520889(Sales and Marketing Support)
86-538-5366875(General Department, Human Resources Department)
Email:tkdgdq@163.com
Address: No.11 Leigushi East Street,Taishan District,TaiAnCity, Shandong Province

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