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Designed to expand the manual control capabilities of 15-inch display industrial panels, the Beckhoff C9900-E858 provides a robust, right-side mounted physical interface extension. This push-button module is engineered specifically for CP6x12-00xx and CP7x12-00xx Control Panels and Panel PCs operating without integrated keyboards.
This extension integrates sixteen square Siemens Signum (30 x 30 mm) push-buttons, each equipped with an integrated signal lamp, alongside a dedicated, directly wireable Siemens Signum emergency stop button. Electrical configuration features dual-channel flexibility: all main push-buttons communicate primary states via CP-Link or USB using a normally-open (NO) contact, while a terminal row enables direct wiring of a secondary normally-open contact for hardwired safety or control integration. The integrated signal lamps are driven exclusively through the CP-Link or USB communication interface.
| Manufacturer | BECKHOFF |
| Part Number/Model | C9900-E858 |
| Compatibility | CP6x12-00xx and CP7x12-00xx (15-inch display without keyboard) |
| Mounting Location | Right side of Control Panel / Panel PC |
| Push-Buttons | 16 x Siemens Signum square (30 x 30 mm) with integrated signal lamps |
| Emergency Stop | 1 x Siemens Signum emergency stop key, directly wireable |
| Primary Button Contact | 1 x normally-open (NO) contact via CP-Link / USB |
| Secondary Button Contact | 1 x normally-open (NO) contact via hardwired terminal row |
| Signal Lamp Control | Exclusively via CP-Link or USB |
| Approximate Shipping Weight | 5.0 kg |
| CP-Link / USB | Primary push-button status communication and signal lamp drive power |
| Terminal Row | Direct connection points for secondary normally-open (NO) push-button contacts |
| E-Stop Terminals | Direct wiring contacts for hardwired emergency stop integration |
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Returns & Warranty

Designed to expand the manual control capabilities of 15-inch display industrial panels, the Beckhoff C9900-E858 provides a robust, right-side mounted physical interface extension. This push-button module is engineered specifically for CP6x12-00xx and CP7x12-00xx Control Panels and Panel PCs operating without integrated keyboards.
This extension integrates sixteen square Siemens Signum (30 x 30 mm) push-buttons, each equipped with an integrated signal lamp, alongside a dedicated, directly wireable Siemens Signum emergency stop button. Electrical configuration features dual-channel flexibility: all main push-buttons communicate primary states via CP-Link or USB using a normally-open (NO) contact, while a terminal row enables direct wiring of a secondary normally-open contact for hardwired safety or control integration. The integrated signal lamps are driven exclusively through the CP-Link or USB communication interface.
| Manufacturer | BECKHOFF |
| Part Number/Model | C9900-E858 |
| Compatibility | CP6x12-00xx and CP7x12-00xx (15-inch display without keyboard) |
| Mounting Location | Right side of Control Panel / Panel PC |
| Push-Buttons | 16 x Siemens Signum square (30 x 30 mm) with integrated signal lamps |
| Emergency Stop | 1 x Siemens Signum emergency stop key, directly wireable |
| Primary Button Contact | 1 x normally-open (NO) contact via CP-Link / USB |
| Secondary Button Contact | 1 x normally-open (NO) contact via hardwired terminal row |
| Signal Lamp Control | Exclusively via CP-Link or USB |
| Approximate Shipping Weight | 5.0 kg |
| CP-Link / USB | Primary push-button status communication and signal lamp drive power |
| Terminal Row | Direct connection points for secondary normally-open (NO) push-button contacts |
| E-Stop Terminals | Direct wiring contacts for hardwired emergency stop integration |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|