Service & Support

All 3Y products include a 3 years warranty from date code.

The date code can be found on the product label and is a four digit number.

The first two digits are indicating the year, while the last two for the calendar week.

Please see following example:

Date code 1503 = year 2015; calendar week 03

This unit had been produced in January 2015, so warranty ends January 2018.

This is the standard warranty and is only valid, as long not stated different on Invoice or by contract.

Please use following check list before calling in for warranty:

1. Check the four digit date code. First two digit stand for the year and the last two for the calendar week.

(e.g. 1503 = year 2015; calendar week 03)

Our products carry a 3 year warranty from data code.

2. What is the part number?

Our part number usually starts with YH & YM.

3. Where did you purchased the Unit?

Please check with your source of the Unit for RMA procedure and number.

More details on RMA and warranty procedure can be found here.

Please prepared following information in advance, before you call in:

1. Check the four digit date code. First two digit stand for the year and the last two for the calendar week.

(e.g. 1503 = year 2015; calendar week 03)

Our products carry a 3 year warranty from data code.

2. What is the part number?

Our part number usually starts with YH & YM.

3. What are the symptoms?

Please press here to contact us.

A method of compensating the decline of regulation caused by the voltage drop in output cables or the device.

Redundant operation is used in parallel connections of N Power Supplies (single operation when N = 1) of the same model, where a redundant Power Supply is added to the number of Power Supplies (N) in parallel operation (N+1), thereby improving the reliability of the system.

Hot Swap is replacing or adding components without stopping or shutting down the system.

Current sharing is the technique in which power supplies are connected in parallel to provide more load current or redundant power to a load. This connection increases the amount of current available for the load while the voltage remains constant.

Standby Power refers to the electric power consumed by electronic and electrical appliances while they are switched off or in a standby mode.