The large rectangular pushbutton panel is the external control unit housing the start and stop buttons of Sirman bone saws, the component the operator accesses directly to switch the machine on and off safely during work.

• Rectangular body, "large" version compared to the compact pushbutton panel
• Grey connection cable
• Compatible with Sirman brand bone saws

Replacement becomes necessary when the buttons lose their travel or electrical contact, when the grey cable is worn, exposed or cut, or when the original panel shows cracks or play in its mounting seat that compromise its seal. A compatible replacement restores correct switching on and off of the machine, a key safety requirement on equipment fitted with a blade.