This membrane switch keypad provides reliable user input for Siemens SIMATIC operator panels. It replaces worn or damaged keypad assemblies on compatible HMI devices. We designed the Siemens 6AV3525-4EA01-0AX0-ZA03 as a direct-fit replacement component. This keypad restores full functionality to your existing operator interface hardware. It delivers tactile feedback for confident keystroke confirmation during operation. Therefore, your HMI systems continue serving operators without costly panel replacements.
Physical Configuration and Material Composition
The Siemens 6AV3525-4EA01-0AX0-ZA03 features a flexible membrane construction with a durable polyester overlay. Its dimensions measure 215.0 mm in width and 135.0 mm in height. The keypad weighs approximately 0.15 kilograms for straightforward handling during installation. This unit includes a pre-installed adhesive backing for secure panel attachment. It incorporates 24 individual switch positions with clear graphic labels. The keypad connects to the panel electronics via a flexible printed circuit tail.
Keypad Specifications and Switching Characteristics
This membrane keypad delivers a defined actuation force of 250 grams per key. Each key provides a positive tactile snap for operator feedback. The Siemens 6AV3525-4EA01-0AX0-ZA03 offers an operating life of over one million actuations. It utilizes gold-plated contact points for reliable low-voltage switching performance. The keypad includes integrated dome switches for consistent tactile response. It features a protective hard-coated surface for resistance against chemical exposure. Consequently, this ensures long-term reliability in demanding industrial environments.
Detailed Technical Specifications and Interface Details
We present the keypad’s comprehensive technical parameters and physical attributes below.
| Specification | Detail |
|---|---|
| Part Number | Siemens 6AV3525-4EA01-0AX0-ZA03 |
| Product Category | Membrane Switch Keypad |
| Dimensions (W x H) | 215.0 mm x 135.0 mm |
| Keypad Weight | Approximately 0.15 kg (0.33 lbs) |
| Number of Keys | 24 individual switch positions |
| Key Technology | Snap-action dome switch with tactile feedback |
| Actuation Force | 250 grams nominal per key |
| Key Travel | 0.8 mm typical |
| Contact Material | Gold-plated nickel contacts |
| Contact Resistance | < 100 Ω (closed circuit) |
| Insulation Resistance | > 100 MΩ at 100 VDC |
| Operating Life | > 1,000,000 actuations per key |
| Overlay Material | Polyester with hard-coated finish |
| Circuit Material | Silver conductive ink on polyester substrate |
| Adhesive Type | Pressure-sensitive acrylic adhesive (pre-applied) |
| Connection Type | Flexible printed circuit tail (17-pin, 1.27 mm pitch) |
| Tail Length | 50.0 mm from keypad edge |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
| Storage Temperature | -20°C to 60°C (-4°F to 140°F) |
| Humidity Resistance | 95% RH non-condensing |
| Chemical Resistance | Resistant to most industrial cleaning agents |
| Compliance | CE, RoHS |
Details
| Weight | 0.15 kg |
|---|---|
| Dimensions | 215 × 135 × 10 mm |
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