Data center solutions
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Data center solutions
Product Details
Typical Low-Voltage Power Distribution Scheme for Data Centers

TKDW Series Air Circuit Breaker (ACB)
TKDM Series Moulded-case Circuit Breaker (MCCB)
TKDB Series Terminal Protection Devices
TKDQ Series Automatic Transfer Switch
Overview
With the explosive growth of data, the status and role of data centers in the communications industry are becoming unprecedentedly important. The power supply and distribution system is one of the important auxiliary facilities of the data center. The key starting point of Taikai Electric's data center solution is to effectively ensure the continuous and stable operation of the low-voltage power distribution system through regional selective interlocking functions, fully selective coordination between protection components, and high-performance and reliable ATS automatic transfer switches.
Taikai is committed to the high-end industrial power distribution market, combining intelligent components and system platforms to meet the needs of engineering technology. It not only achieves status monitoring but also realizes the self-diagnosis function of electrical equipment, greatly reducing the accident rate of power supply lines. It brings reliable power supply and distribution protection to customers and improves production efficiency.
Main products applied in data centers: Air Circuit Breaker (ACB), Moulded-case Circuit Breaker (MCCB), automatic transfer switch, terminal protection devices, etc.
Main requirements for low-voltage electrical appliances in data centers: Improve power reliability and the automation level of the power supply and distribution system to achieve a reliable, safe, advanced, and efficient power supply and distribution system.
Low-Voltage Electrical Appliance Product Standards
● 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-breaker
● GB/T 14048.3 Low-voltage switchgear and controlgear Part 3: Switches, isolators, switch-disconnectors and fuse-combination units
● GB/T 14048.4 Low-voltage switchgear and controlgear Part 4-1: Contactors and motor-starters Electromechanical contactors and motor-starters
● GB/T 14048.11 Low-voltage switchgear and controlgear Part 6-1: Multifunctional apparatus Changeover switch apparatus
● GB/T 10963.1 Electrical accessories Overcurrent protective circuit-breakers for household and similar purposes Part 1: AC circuit-breakers
● GB/T 16917.1 Household and similar purposes residual current operated circuit-breakers with overcurrent protection Part 1: General rules
● GB/T 16917.22 Household and similar purposes residual current operated circuit-breakers with overcurrent protection Part 22: Applicability of general rules to RCBOs whose operating function is voltage-dependent
Standard Working Conditions
● Ambient temperature: -5℃~+40℃, limit ambient temperature -40℃~+70℃;
● Installation altitude: Not exceeding 4000m (derating required for altitudes exceeding 2000m);
● When the highest temperature is +40℃, the relative humidity of the air does not exceed 50%. At lower temperatures, higher relative humidity is allowed, for example, 90% at 20℃. Special measures should be taken for occasional condensation due to temperature changes.
● Pollution degree: Grade 3
● Protection level: IP20
● Installation category: Category Ⅲ
● The vertical inclination of the installation does not exceed 5°
● Transportation and storage conditions: Not lower than -40℃, not higher than 70℃
Electrical Appliance Low-Voltage Electrical Appliance System
Typical Low-Voltage Power Distribution Scheme for Data Centers
The low-voltage switchgear adopts a single busbar sectionalized wiring, with a bus coupler in the middle. Two transformers supply power simultaneously, operating separately, with generator backup. Each transformer can supply power to the entire load. When a fault occurs in one of the mains, the automatic switching device ATSA disconnects the faulty incoming line circuit breaker and closes the bus coupler, supplying power from the other mains to ensure continuous power supply to the load side. When both mains fail simultaneously, the automatic switching device ATSA disconnects the faulty mains circuit breaker and starts the diesel generator to ensure power supply to important loads.

Typical UPS Power Distribution Scheme for Data Centers
Provides power for network servers and other equipment in the machine room, including UPS input cabinets, rectifier panels, battery cabinets, and UPS output cabinets.

Typical Power Distribution Scheme for Data Center Precision Cooling Systems
Provides a constant temperature and humidity environment for the machine room, preventing server crashes caused by temperature changes.

Typical HVDC Power Distribution Scheme for Data Centers
Provides DC power for network servers and other equipment in the machine room, including rectifier panels, battery cabinets, and DC switchgear. The system configuration is simple, with few failure points and easy maintenance.

TKDW Series Air Circuit Breaker (ACB)
| The TKDW series intelligent air circuit breaker (ACB) is suitable for AC 50Hz, rated voltage up to AC 800V, rated insulation voltage 1000V, rated working current 6300A and below low-voltage power distribution networks. It is used to distribute power and protect circuits and power equipment from damage caused by overloads, undervoltages, short circuits, and single-phase grounding faults. The circuit breaker can be equipped with various intelligent controllers, with complete protection functions. The communication-type controller has a communication interface and can connect to the fieldbus to realize the "four remote" functions, meeting the needs of control automation. Compliant Standards: 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-breaker |
Protection function
Intelligent controller
| ● Basic functions Overload long-time delay Short-circuit short-time delay Short-circuit instantaneous Current measurement Fault status display Overload pre-alarm Fault recording Functional test Self-diagnosis | ○ Optional functions Communication function Current unbalance protection MCR and HSISC Load monitoring Power grid parameter historical memory Power measurement Power factor measurement Energy measurement Area interlocking Harmonic measurement Contact wear indication ...... |
| Overload long-time delay (multiple protection curves optional) | ||
| IR | IR1=(0.4~1)In+OFF | |
| tR(s) | At 1.5IR | tR=15~500,OFF |
| Short-circuit short-time delay | ||
| Isd | Isd=(1.5~15)In+OFF | |
| tsd(s) | 0.1~1.0(step 0.1s) | |
| Instantaneous | ||
| Ii | Ii=(1.0~20)In+OFF | |
| ti | ≤30ms | |
| Ground fault | ||
| Ig | Isd=(0.2~1.0)In+OFF | |
| tg(s) | 0.1、0.2、0.3、0.4 | |
Product selection
TKD 1 | W1-2000 2 | / | 3P 3 | / | 630A 4 | F 5 | T12 6 | M1 7 | X1 8 | F1 9 | Q1 10 | K1 11 |
| Serial number | Description | Model meaning | |
| 1 | Enterprise code | TKD: Shandong Taikai Electrical Appliance Co., Ltd. | |
| 2 | Product category | W1-2000、W1-3200、W1-4000、W2-1600、W2-6300 | |
| 3 | Pole number | 3P、4P | |
| 4 | Rated current | 200A~2000A、2000A~3200A、3200A~4000A、200A~1600A、4000A~6300A | |
| 5 | Mounting Method | F:Fixed type D:Drawer type | |
| 6 | Intelligent controller | T1:AC230V、T2:AC400V、T3:DC24V、T4:DC110V、T5:DC220V | |
| 1:L type、2:M type、3:2M type、4:2H type、5:3M type、6:3H type | |||
| 7 | Electric operation | M1:AC230V、M2:AC400V、M3:DC110V、M4:DC220V | |
| 8 | Separately excited | X1:AC230V、X2:AC400V、X3:DC110V、X4:DC220V | |
| 9 | Closing | F1:AC230V、F2:AC400V、F3:DC110V、F4:DC220V | |
| 10 | Undervoltage release | Q1:AC230V、Q2:AC400V | 1:Instantaneous、2:Delayed |
| 11 | Additional functions and requirements | K1: One lock, one key; K7: Door interlock; A5: Power module; A6: Neutral line current transformer (see sample) | |
TKDM series Moulded-case circuit-breaker (MCCB)
The TKDM series Moulded-case circuit-breaker (MCCB) is suitable for AC 50Hz circuits with a rated insulation voltage of 800V, a rated voltage of 690V or less, and a rated working current of up to 800A. It is generally used for power distribution, protecting lines and power equipment from damage caused by overloads, short circuits, and undervoltage. It can also be used in locations with infrequent motor starts. Compliant Standards: |
Protection function
Thermal-magnetic Circuit-breaker
Overload long-delay protection + Short-circuit instantaneous protection
Electronic Circuit-breaker
Overload long-delay protection + Short-circuit short-delay protection + Short-circuit instantaneous protection + Ground fault protection (optional)
Circuit-breaker with residual current protection
Overload long-delay protection + Short-circuit instantaneous protection + Residual current protection
| Overload long-delay | |
| 1.05In | No operation within 2h |
| 1.3In | Operation within 1h |
| Short-circuit short-time delay | |
| Isd ≤I<1.5Isd | Inverse time operation, according to I 2 Tsd = (1.5Isd) 2 tsd, tolerance ±20% |
| 1.5Isd ≤I<Ii | tsd ±20% operation |
| Short-circuit instantaneous | |
| I≤0.80Ii | No operation within 0.2s |
| I≥1.20Ii | Operation within 0.2s |
| Residual current protection | |
| 0.5IΔn | No tripping |
| 1.0IΔn | Tripping within 0.2s (non-delayed), tripping within 0.4/1.0s (delayed) |
Product selection
TKD 1 | M 2 | 1 3 | E 4 | — | 250 5 | M 6 | P 7 | / | 3 8 | 300 9 | 2 10 | 250A 11 | Front panel wiring 12 |
| 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 | 1, 2, 3 |
| 4 | Trip type | None: Thermal-magnetic trip unit; E: Electronic trip unit; L: With residual current protection; Z: DC dedicated |
| 5 | Frame size | 100 (125), 160, 250 (225), 400, 630, 800 |
| 6 | Breaking capacity | C: Economic type; L: Standard type; M: Higher breaking capacity type; H: High breaking capacity type |
| 7 | Operation mode | None: Manual operation; P: Electric operating mechanism; Z: Rotary handle operating mechanism |
| 8 | Pole number | 3: 3P; 4: 4P |
| 9 | Accessory code | 300 (see product selection manual and sample) |
| 10 | Application code | None: Power distribution protection; 2: Motor protection |
| 11 | Rated current | 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A, 140A, 160A, 180A, 200A, 225A, 250A, 315A, 400A, 500A, 630A, 800A |
| 12 | Additional functional requirements | Please note any special ordering requirements |
TKDQ series automatic transfer switch
The TKDQ series dual-power automatic transfer switch is suitable for two-power supply systems with a rated voltage of AC 400V and a frequency of 50Hz, and a rated working current of up to 1600A. It acts as a switching device between the normal and backup power supplies. When one power supply fails, it automatically switches between the normal and backup power supplies, ensuring the continuity of power supply to important equipment. At the same time, it provides short-circuit and overload protection for the downstream load and cables. It is mainly used in industrial control, fire protection, banking, and other important places where power outages are not allowed. Compliant Standards: |
Product structural characteristics
The TKDQ1 series dual-power automatic transfer switch consists of a TKDM series Moulded-case circuit-breaker (MCCB) (three-pole or four-pole), its accessories, a mechanical interlocking transmission mechanism, and an intelligent controller. The product is available in integrated and split structures.
The TKDQ2 series dual-power automatic transfer switch uses AC-33iB, with a CB-level electrical rating. The product structure consists of two TKDB1-63 Miniature Circuit Breakers (MCBs) (three-pole or four-pole), their accessories, a mechanical interlock transmission mechanism, and an intelligent controller; the product structure is integrated.
The TKDQ3 series dual-power automatic transfer switch adopts an integrated electromechanical design, using reliable mechanical and electrical interlocks. The execution components use independent load isolating switches, ensuring safe and reliable operation. The product is available in integrated and split structures.
Product Features:
Reliable mechanical and electrical interlocks are provided between the two power sources, eliminating the possibility of both the main and backup power sources being closed simultaneously, making it safer and more reliable.
The controller circuit design uses a power sampling and single-chip microcomputer control separation scheme, structurally eliminating electromagnetic interference.
It has three different control functions: automatic switching and restoration, automatic switching without restoration, and grid-generator, meeting the needs of different locations.
Good safety performance, high degree of automation, high reliability, and a service life of over 8000 cycles.
Product selection
TKD 1 | Q 2 | 3 3 | 250 4 | D 5 | / | 4P 6 | 250A 7 | Integrated 9 |
| Serial number | Description | Model meaning |
| 1 | Enterprise code | TKD: Shandong Taikai Electrical Appliance Co., Ltd. |
| 2 | Product category | Q: Automatic Transfer Switch |
| 3 | Design SN | 1, 2, 3 |
| 4 | Frame size | TKDQ1: 63, 125, 250, 400, 630, 800 |
| TKDQ2: 63 | ||
| TKDQ3: 100, 160, 250, 630, 800, 1000, 1250, 1600 | ||
| 5 | Controller Model | Type C, Type D, Type E, Type F (TKDQ3 only) |
| 6 | Pole number | 2: 2P 3: 3P 4: 4P |
| 7 | Rated current | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A, 140A, 160A, 200A, 225A, 250A, 315A, 400A, 500A, 630A, 800A, 1000A, 1250A, 1600A |
| 8 | Structure Type | Integrated, Split |
| 9 | Additional Function Type | Please note any special ordering requirements |
TKDB Series Terminal Protective Device
![]() | TKDB series Miniature Circuit Breakers (MCBs) are suitable for low-voltage terminal power distribution control and isolation in residential, industrial, and construction applications. They protect power distribution lines and electrical equipment from overloads and short circuits. They can be used for infrequent on/off operations and provide protection against ground faults and direct or indirect contact electric shocks. They can also prevent harm caused by energized neutral lines during faults. Compliant Standards: |
Product selection
TKD 1 | B 2 | 1 3 | L 4 | 63 5 | C 6 | 32 7 | / | 2P 8 | + | OF1 9 |
| Serial number | Description | Model meaning |
| 1 | Enterprise code | TKD: Shandong Taikai Electrical Appliance Co., Ltd. |
| 2 | Product category | B: Miniature Circuit Breaker (MCB) G: Small Isolating Switch |
| 3 | Design SN | 1, 2 |
| 4 | Function Code | None indicates no leakage protection; L: with leakage protection |
| 5 | Frame size | 32, 63, 125 |
| 6 | Operating Characteristics | Type B, Type C, Type D |
| 7 | Rated current | 1, 2, 3, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63, 80, 100, 125 |
| 8 | Pole number | 1P, 1P+N, 2P, 3P, 3P+N, 4P |
| 9 | Accessories | OF1, OF2, SD1, SD2, MX+OF |
Operating Characteristics
Type B: Instantaneous trip range (3 ~ 5) In
Type C: Instantaneous trip range (5 ~ 10) In
Type D: Instantaneous trip range (10 ~ 20) In
Accessory Installation Instructions

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SHANDONG TAIKAI ELECTRIC APPLIANCES CO., LTD.
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86-538-8520889
Tel:
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Email:tkdgdq@163.com
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