There are still some products that have not been listed yet. For more information, please contact us. If the product model does not match the displayed picture, the actual model shall prevail. Please consult us for specific product images; We will arrange for the warehouse to take photos for confirmation. We have 76 shared warehouses worldwide, so it may take several hours to accurately respond to your message. We deeply apologize for any inconvenience caused to you. Of course, we will process your inquiry as soon as possible.

ABB NPBU-42C PPCS Branch Unit & Supercapacitor Power Backup Module 

As indispensable core spare of ABB PPCS & Symphony DCS system, NPBU-42C solves typical on-site faults: frequent PPCS bus communication interruption, DCS controller random shutdown triggered by instantaneous grid dip, whole branch I/O station offline, abnormal field interlock action from unstable power supply due to original module aging, supercapacitor attenuation or internal circuit burnout. Fully consistent OEM PCB layout, pin definition and installation dimension, direct plug-and-play replacement without bus parameter reset or cabinet wiring modification, drastically shorten equipment outage maintenance duration. Two supply grades available: original factory new with official ABB datasheet; refurbished version after component screening, supercapacitor capacity calibration, 72h continuous full-load aging test, both covered unified 12-month global warranty for power station unit overhaul, chemical plant DCS upgrading and urgent rush purchase.

• Thermal Power Plant: Boiler & Turbine Symphony DCS cabinet PPCS bus & control power backup spare

• Hydropower Station: Generator unit auxiliary control PPCS system cabinet maintenance stocking

• Petrochemical Refinery: Reaction furnace & pipeline SCADA DCS power protection transformation

• Metallurgy Factory: Smelting furnace & rolling mill drive control cabinet module replacement

• Cement/Paper Plant: Production line ABB PPCS automation system routine spare inventory

• Two-in-one Integrated Design: Realize bus branching + emergency power backup in single module, save cabinet installation space

• Ultra-fast Backup Switch: Sub-microsecond power transfer avoid controller reboot from instantaneous power failure

• Long Service Life Supercapacitor: No regular battery replacement vs traditional lead-acid UPS, lower later maintenance cost

• Multi-protocol Universal Communication: Compatible mainstream industrial bus for flexible system matching

• Full-range Circuit Protection: Built-in multi-level safeguard isolate field short-circuit damage to core DCS equipment

• Compact Rack Mount Structure: DIN rail/standard cabinet plug-in installation, easy onsite swap replacement

• New & Refurbished Dual Inventory: Separate stock for large project bulk order and emergency rush repair

• Strict Pre-shipment QC: All refurbished modules pass capacity testing, communication aging & full-load power cycling test

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.