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Digital meter shows the present voltage, warranty time left & delay time

Model: KAB30A-DG-2

Rated Voltage: 220V30A

Over Voltage Protection: 265V

Under Voltage Protection: 170V

Delay Time: 3-5 mins


 Accept OEM  ( The under voltage, over voltage, delay time we can make according to yours.)

    Voltage Protect  mainly used for the regions with unstable voltage It's used for TV, PC, refrigerator and so on . 

       When the voltage is too high or low, the protector will cut off the power automatically. When renewing to supply the power, the protector will delay to start up the electrical appliance in order to protect the electrical appliance. Especially, to protect the electrical appliance from compressor.

 Product Features

Ⅰ. Adjustable delay time


       You can switch the delay time by the button, one click to choose 180s, press twice to choose 360s. 


Ⅱ. Visualized display


       The digital display shows the present working status clearly and conspicuously. 


       Power on display delay countdown, after start, display the normal voltage . When over voltageLOP and voltage alternate display.When under voltage, HOP and voltage alternate display 


 Product Specification 

ModelKAB 30A-DG-2
Rated voltage220V30A
Under voltage170V
Over voltage265V
Working voltage30A
Delay time3-5mins



PackingBlister / Color box packing 

Packaging & Shipping 

Packaging Details: Blister Packing  

                              Customer Design Packaging Is Accepted

                                                       The order ≥1000

Delivery Detail: In 45-55 Days after Payment


Payment Terms: 30% deposit in advance, balance 70% before shipment 

                               Sample Cost and Shipping Chaege to be Paid 100% in Advance

 Our Services

1.OEM  ( The under voltage, over voltage, delay time we can make according to yours.)

2. Competitive Price

3. Free Packaging Design. We have our own professional designers

4. Fast Delivery. Goods will be delivered in 45-55 days after payment

5. 100% QC and 100% AGEING  inspection before shippment

6. One Year Warranty

7.Good after-sale service is available.


1. The total power of connected electrical equipment shall not exceed therated power

2. Do not use this product in damp or not ventilated environment

3. Non-professionals do not open, change, repair the product

4. Poor cennection of the front terminal or poor connection of the plugmay cause a danger


About us

Konstar Electric Industrial Co., Ltd.

     Konstar is a high-tech company, engaged in power controller and electrical auto parts, including the voltage protector , battery tester and oxygen sensor.

    We have more than 20 years' experience in electronic industry, and group of excellent managers and technicians and skilled workers.


Q1. What is your terms of packing?

A: Generally, we pack our goods in neutral  brown cartons.

Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q3. What is your terms of delivery?

Q4. How about your delivery time?
A: Generally, it will take 45to 55 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q5. What is your sample ?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q6. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q7: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
    2. We respect every customer as our friend and we sincerely do business and make friends with them,   no matter where they come from.

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