What makes ELO caps the versatile choice for mixed HMI fleets?

The 6AV6881-0AV61-0AA0 ELO caps are the general-purpose replacement tips in the SIMATIC HMI touch pen ecosystem. They are compatible with both capacitive and resistive touch screens, so a single cap type covers both technologies — no need to stock separate RES and capacitive caps if your facility has a mix of panel generations. The ELO designation refers to the touch pen system they pair with (the ELO touch pen, 6AV6881-0AV21-0AA0), but the caps also fit other SIMATIC touch pens that accept the standard ELO thread pattern. Each pack contains 5 caps.

When should I choose ELO caps over RES or V2A?

Choose ELO caps when you need dual-technology compatibility at an entry-level price point. Compared to RES caps (resistive-only), ELO caps add capacitive compatibility — useful if your facility plans to upgrade panels or runs both types. Compared to V2A stainless steel caps, ELO caps are plastic and cost less per pack, but they wear faster under heavy use. If your operator station sees moderate daily use in a clean control-room environment, ELO caps provide the best value. If the station runs 24/7 on a dusty production floor with gloved operators, step up to the V2A caps for longer service intervals.

Frequently Asked Questions

Can I use ELO caps with the V2A universal touch pen?

The ELO caps and V2A caps use different thread specifications. ELO caps are designed for the ELO touch pen system (6AV6881-0AV21-0AA0), while V2A caps are designed for the V2A universal touch pen system (6AV6881-0AV22-0AA0). Match the cap type to the pen. Using the wrong cap may result in a loose fit, inconsistent screen contact, or cap loss during operation.

How many caps should I keep in stock?

For a single-shift operator station using the touch pen regularly, one cap typically lasts 3–6 months before the tip shows visible wear. With a 5-pack and quarterly inspection, you have a full year of spares per station. For multi-shift or high-traffic stations, stock two packs and inspect monthly.