HMISTU855 Schneider Membrane Keypad / Front Overlay

HMISTU855 Schneider Membrane Keypad / Front Overlay Overview

The HMISTU855 is a Schneider Electric Membrane Keypad / Front Overlay designed for Schneider Harmony HMISTU855 HMI maintenance, repair and replacement projects. This is a replacement membrane keypad / front overlay only — not a complete HMI unit or operator panel. It restores button function on worn, damaged or non-responsive keypad overlays in industrial automation environments.

Important: Please confirm the original label, full model code, key button layout, membrane tail connector type/pin count, mechanical dimensions and equipment manual before ordering. This is a replacement part only.

Key Features

• Model number: HMISTU855

• Brand / compatible brand: Schneider Electric

• Product type: Membrane Keypad / Front Overlay (Replacement Part)

• Series / equipment: Schneider Harmony HMISTU855 HMI

• Designed for HMI repair, automation maintenance and spare-parts replacement

• Replacement membrane only — not a complete HMI unit or operator panel

• MOQ: 1 piece

• Fast international shipping available

Key Specifications

Compatibility and Replacement Use

The HMISTU855 membrane keypad overlay can be used as a replacement when the original Schneider Harmony HMISTU855 HMI operator panel requires a new front keypad membrane due to wear, unresponsive keys, peeling overlay or physical damage. This is a front membrane keypad replacement only — not a complete HMI panel or display unit.

Typical Applications of HMISTU855

• HMI operator panel keypad replacement

• Industrial automation maintenance and repair

• Machine downtime recovery and spare-parts replacement

How to Confirm Whether HMISTU855 Fits Your HMI Panel

1. Check the original HMI panel label and exact model number.

2. Confirm the brand, series, and specific HMI model (Harmony HMISTU).

3. Compare the key button layout, positions and labels with the original membrane.

4. Check the membrane tail connector type, pin count and cable orientation.

5. Measure the outer dimensions, cutout and mounting holes.

6. Send clear front and back photos if compatibility verification is needed.

Quality, Packing and Shipping

• Quality control: Each keypad membrane is visually inspected before shipment.

• Packaging: Anti-static bag with protective flat board and carton for international delivery.

• Shipping: DHL, FedEx, UPS, TNT, EMS and other international shipping options.

FAQ

What is HMISTU855?

HMISTU855 is a Schneider Electric Membrane Keypad / Front Overlay used for Schneider Harmony HMISTU855 HMI maintenance and keypad replacement.

Is this a complete HMI unit?

No. This is a replacement membrane keypad / front overlay only. It does NOT include the LCD display, touch screen, backlight, mainboard or any internal electronics.

Can it replace my original HMI keypad?

Yes, only when the model code, key layout, membrane tail connector, dimensions and HMI panel model match the original part.

What should I check before ordering?

Check the original HMI panel label, model number, key button layout, membrane tail connector type/pins, outer dimensions and mounting holes.