ABB 81AA03A-E GJR2394100R1210

Description

The power part of converters size H1 … H6 is monitored by means of a galvanic isolated PTC

thermistor. The PTC is installed on the heat sink in an isolated configuration. The PTC’s resistance

and protective effect correspond to the maximum temperature defined by the type code.

The air entry temperature at the power part of converters size H7 and H8 is monitored by means of a

galvanic isolated PTC thermistor. The sensor measures the power part’s radiated heat and any

changes in the cooling air temperature and volume.

The PTC‘s resistance change is proportional to the temperature. It is read and evaluated in the

drive’s firmware. If the temperature increases above the preset value, then first a warning and – if the

temperature continues to rise – a fault message is generated. The preset value must not be set more

than 5 degrees above the permissible ambient temperature.

For converter size H7 and H8 the cooling air volume can only be detected indirectly. Thus,

additionally a differential-pressure switch has been installed at the unit’s housing. It is always located

close to the power terminals.

The differential-pressure switch compares the pressure inside the drive with the normal air pressure.

If the fan is switched on, the drive’s door is closed, no covers have been removed and the pressure

switch signals ‘cooling conditions ok’ it is possible to release the converter. There is no need to set a

specific differential pressure (recommendation: use the center setting). The differential pressure

switch should be connected to the converter fan acknowledge signal.

Our products are widely used in CNC mechanical metallurgy, oil and gas, petrochemical industry,
Chemical industry, paper printing, textile printing and dyeing, machinery, electronic manufacturing, automobile manufacturing,
Plastic machinery, electricity, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution.

.

Why are the prices of many products of our company more competitive?
(1) Source purchase to reduce the price difference in the intermediate phase
(2) Stable channel and more guaranteed supply
Lead time problem
(1) For the spot products in stock, the de

livery can be arranged on the same day after the contract payment is signed
(2) Order products and deliver according to the quoted delivery date
Xiamen Xiongba adheres to the enterprise philosophy of “improving the value of spare parts supply chain”,
For the simple purchase procedure of spare parts, ensure that they are delivered to the site in a timely manner, and help users reduce the risk of downtime caused by the shortage of spare parts
The emergency spare parts support service is complete, and the user can customize the spare parts. The quality of the spare parts is reliable. All the spare parts provided enjoy a one-year super long warranty
Spot stock, fast response, reduce user capital investment, improve spare parts utilization, spare parts replacement!

Details: If you need urgent delivery orders, please feel free to contact us, and we will try our best to meet your needs.
Price problem: If you find that other suppliers offer cheaper prices for the same product, we are also willing to provide you with reference prices and give you further discounts.
Contact us:+86 181 0693 7731
Mail: 2872270648@qq.com
Contact: Chen

Stock products of the same series