Description
Siemens OP77A 6AV6641 is supplied by Longi for industrial maintenance, repair replacement and factory equipment support. This product page is prepared for buyers who need the correct display button panel, clear model matching and practical shipment support before ordering.
Siemens OP77A 6AV6641 Brand and Model Information
The brand of this product is Siemens. The main model or part number information is OP77A, 6AV6641. Please compare every character in the model code with your existing part, machine label, maintenance manual or purchase record. Small suffix differences can change compatibility, especially for HMI touch panels, drive boards, inverter modules and control accessories.
Siemens OP77A 6AV6641 Product Type
This item is a display button panel for industrial automation equipment. It is intended for maintenance engineers, equipment rebuilders, factories, system integrators and repair teams that need a replacement part to restore production equipment, reduce downtime or keep a spare unit ready for emergency maintenance.
Suitable Equipment and Compatibility
The Siemens OP77A 6AV6641 is compatible with Siemens HMI, OP, MP, TP, KTP, SIMATIC and SINUMERIK equipment when the exact 6AV, 6FC or 6ES order number and panel size match. If you are replacing a damaged unit, please check the front label, back label, connector position, board revision, firmware version, panel size and mounting structure before purchase.
Condition and Testing Status
Condition: Available replacement stock. Before shipping, Longi checks the visible condition, model label and basic working status where testing is practical. Used and dismantled parts may have normal marks from storage or previous installation, but we select parts for stable industrial repair use. New or unused parts may still have storage marks on packaging or labels.
Main Parameters
| Brand | Siemens |
| Model / part number | OP77A, 6AV6641 |
| Product type | display button panel |
| Equipment family | OP77 |
| Power / rating | Confirm according to original part label |
| Condition | Function checked replacement stock |
| Warranty / support | Model confirmation support before shipping |
Replacement and Compatible Models
For replacement work, use the complete model number first. Possible compatible or alternative versions should only be confirmed after comparing the full part number, electrical rating, connector layout and physical size. For this listing, the key reference model information is OP77A, 6AV6641. Send photos of your old part to Longi if you need help checking whether another version can replace it.
Official Reference and Model Checking
For extra model confirmation, customers may compare the model family with Siemens Industry Support. Official references are useful for checking product family names, electrical ratings and installation notes, while the actual replacement decision should still be based on the exact label and photos of your existing part.
Typical Applications
- Factory automation equipment maintenance and repair.
- Production line spare parts replacement.
- HMI, PLC, inverter, servo and control cabinet service projects.
- Emergency replacement for discontinued or hard-to-find industrial parts.
- Machine retrofit, testing bench and equipment rebuild projects.
Repair and Replacement Notes
Before installation, power off the machine and follow normal industrial electrical safety procedures. Confirm that the old unit failure is not caused by external wiring, short circuit, overload, damaged power supply or communication fault. Replacing only the display button panel may not solve the problem if another part of the system is damaged.
Packing and Shipping
Longi packs the Siemens OP77A 6AV6641 carefully with protective material according to product size and weight. We usually arrange shipment after order confirmation and basic model checking. International delivery time depends on destination country, customs processing and courier service. Buyers are responsible for confirming import requirements and customs duties in their country.
Related Product Categories
Browse related Longi categories for similar industrial automation spare parts: New Touch Screen Parts. These categories may include compatible HMI parts, inverter parts, drive boards, control boards, touch panels and other maintenance products.
Ordering Reminder for Siemens OP77A 6AV6641
Please confirm the complete model, product photo, connector position and application before ordering. If you are not sure whether this Siemens OP77A 6AV6641 is suitable, contact Longi with clear photos of your existing part, equipment nameplate and fault description. We can help check the model before shipment.
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