• 10kA Power Connection Box , Lightning Protection Box Impulse Counter Function
10kA Power Connection Box , Lightning Protection Box Impulse Counter Function

10kA Power Connection Box , Lightning Protection Box Impulse Counter Function

Product Details:

Place of Origin: Dongguan China
Brand Name: Uchi
Certification: CE / ISO9001 / FCC / SGS
Model Number: Power lightning protection box

Payment & Shipping Terms:

Minimum Order Quantity: 50 piece / pieces
Price: Negotiate
Packaging Details: Export package
Delivery Time: 8 - 15 days after payment
Payment Terms: T/T, L/C
Supply Ability: 10000 pieces per month
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Detail Information

Name: Parallel Connection Box In: 10kA
Shell Material: Hard Plastic Protection Mode Selection: No N-G Protection Mode
Product Warranty: 1 Year Application: Power Entrances
Product Certification: UL Working Temperature: –40ºC ~+75ºC
Protection Class: NEMA 4X Surge Discharge Capacity (8/20μs): 25~50kA (each Phase)
High Light:

10kA power connection box


Impulse counter power connection box


10kA Lightning Protection Box

Product Description

10kA Power Connection Box , Lightning Protection Box Impulse Counter Function

10kA Parallel Connection Box, Lightning Protection Box For The Main Power Entrances



This product is mainly designed for direct lightning or induced lightning protection at the main power entrances or main distribution cabinets of various facilities in high thunderstorm areas, and effectively clamps the line overvoltage generated by lightning strikes to avoid electrical system or equipment damage.

*With up to 300kA (per phase) surge discharge capacity, longer service life and no frequent maintenance during the life cycle*. The product adopts NEMA 4X (hard plastic) or NEMA 4 (metal) optional grade waterproof box, external standard 3/4 inch NPT waterproof cable connector, can be used for indoor and outdoor installation nearby.

*Support most of the current domestic and international power distribution systems and grounding forms, which are convenient for customers to choose; and adopt full-mode protection design to make over-voltage protection safe and reliable. Optional sine wave tracking function, which can more effectively attenuate high-frequency interference or spikes in AC power.

* Equipped with highly sensitive lightning event counting device and digital display, phase power working and protection status LED indication *, and remote signal alarm signal lead, convenient for customers to effectively monitor and maintain.


Connection method   Parallel connection
Number of ports  
Surge discharge capacity (8/20μs)   25~50kA (each phase)
Nominal discharge current (8/20μs) In 10kA
Rated short-circuit current(UL1449) Isccr 200kArms
The working status indicator   LED lights up, working normally
Product failure indicator   LED LED lights off, product failure
Power wire connection   #12AWG (L wire: black, N wire: white, PE wire: green)
Use environment   

Working temperature: –40ºC ~+75ºC;

Relative humidity: relative 5~95% (25ºC); 海拔 : ≤ 3km

Product size (length, width and height)   90 x 58 x 41mm
Cable gland   1/2″NPT pipe with sealed threaded interface
Shell   hard plastic, protection class: NEMA 4X
Product certification   UL



1.Comply with GB18802-11/IEC61643-11, and UL1449 and other international and domestic standards
2.Using Puth's high-performance PTMOV as the core lightning protection component, it has excellent voltage protection level and fail-safe performance. In the event of a power distribution system failure (TOV), the protection module (PTMOV) can safely exit the grid to avoid various failures caused by Faults, such as grid failures or even electrical fires, etc.
3.Full mode protection (L-N, L-PE, N-PE, L-L), to provide protection for all possible lines through which the surge current passes, common mode overvoltage and differential mode overvoltage can be effectively suppressed, and protection level distortion is avoided.
4.Optimize parallel redundancy technology to realize module current sharing. The current flowing through each module (PTMOV) decreases as the number of parallel connections increases, so the product has a longer life expectancy and is more effective in resisting short-term multiple lightning strikes or high-intensity lightning currents . When a module is damaged or aging due to lightning strikes, the module automatically exits the protection sequence without affecting the overall protection function of the product, so the protector does not require frequent maintenance during the life cycle *.
7.Optimized internal structure design, and due to the excellent characteristics of PTMOV, the product is compact and saves installation space
8.With failure LED display, and alarm function.
9.Built-in lightning event monitoring device to accurately record the frequency of lightning or surge events.
10.IP65 (or NEMA4, 4X) waterproof housing, suitable for indoor and outdoor installation.


Scope of application:

The second-level lightning protection box is mainly installed in the floor power distribution, computer room power distribution and other environments, as the second-level lightning protection of the power distribution system, discharges the remaining surge, and cooperates with the first-level lightning protection box to meet the lightning protection acceptance Requirements and protection needs.


Product Description:

Adopting Class II SPD to combine “3+1” circuit, protecting low voltage equipment from surge damages, applied in TT system, designed according to IEC61643-1/GB 18802.1
Main character:
1. Green light indicates normal and red light indicates fault for operation

2. Built-in circuit breaker, and thermal disconnection device, when the fault occurred, the thermal disconnection device will cut off the SPD from the power net, the green window will change
3. Impulse counter function, recording the lightning events
4. External wiring terminal, easy for connection, suitable for indoor application


Type   BT 5L CM 275/40 4P BT 5L CM 385/40 4P BT 5L CM 275/40 3+1 BT 5L CM 385/40 3+1
Order No.   840 883 840 887 840 884 840 888
Norminal a.c. voltage UN 230V/400V 230V/400V 230V/400V 230V/400V
Rated voltage (max. continuous a.c voltage) L/N Uc 275V 385V 275V 385V
Rated voltage (max. continuous a.c voltage) N/PE Uc 275V 385V 255V 255V
Nominal discharge current (8/20µs) L/N In 20KA 20KA 20KA 20KA
Nominal discharge current (8/20µs) N/PE In 20KA 20KA 40KA 40KA
Max. discharge current (8/20µs) L/N Imax 40KA 40KA 40KA 40KA
Max. discharge current (8/20µs) N/PE Imax 40KA 40KA 65KA 65KA
Voltage protection level L/N Up ≤1.25KV ≤1.8KV ≤1.25KV ≤1.8KV
Voltage protection level N/PE Up ≤1.25KV ≤1.8KV ≤1.5KV ≤1.5KV
Follow current extinguishing capability at Uc (N/E) IL     100Arms 100Arms
Operating temperature range   -40℃…+80℃
Cross-sectional area   25mm2 solid/35mm2 flexible
Enclosure material   black metal housing (die-casting Aluminum)
Test standards   YD/T 1235.1; GB 18802.1; IEC 61643-1
Certification   CE (LVD, EMC)


10kA Power Connection Box , Lightning Protection Box Impulse Counter Function 0




Q: Can I use my own Logo or design on goods?
A: Yes, Customized logo and design on mass production are available.

Q:What is the delivery time?
A: 3 days for samples, 7-15 days for mass production.

Q: What is the payment term?
A: T/T, L/C at sight, West union , Paypal, etc.

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