Momentary Single Push Button Schneider Electric DS1A.01/49-SIMON54 250 V 16 A

Schneider Electric DS1A.01/49-SIMON54 is a momentary single push button intended for control and signalling circuits. Rated for 250 V and 16 A, this push button provides a temporary contact closure when pressed, returning to its original position upon release. It is designed for integration into electrical panels, control stations, or wall-mounted switch systems where brief manual activation is required. The compact single-button configuration and industry-standard electrical ratings make it suitable for a variety of switching and control tasks in residential, commercial, and light industrial installations.

Advantages

The button offers reliable momentary contact operation with a 250 V, 16 A rating, ensuring compatibility with common control and signalling circuits. Its design supports easy installation into standard mounting systems and is compatible with modular switch frames and panels. The mechanical return action provides predictable tactile feedback for the operator. Built to recognized electrical parameters, the component facilitates straightforward integration into existing control layouts without the need for additional interface components.

Suitable for

• Manual control inputs for machinery and automation panels
• Signal initiation in control cabinets and relay circuits
• Wall-mounted or desk-mounted momentary switching for lighting and ventilation control
• Temporary override or test functions in electrical systems

Key specifications

• Function: Momentary (push-to-make) single contact
• Rated voltage: 250 V AC
• Rated current: 16 A
• Contact type: Normally open (temporary closure while pressed)
• Mounting: Standard switch frame or panel mounting compatible
• Finish and materials: Durable actuator and housing suitable for repeated manual operation

How to use

Mount the push button into the compatible switch frame or panel cut-out following the manufacturer's mounting instructions and ensure power is disconnected before wiring. Connect the line and load conductors to the corresponding terminals according to the control circuit diagram, observing correct polarity and protective earthing where required. After wiring, restore power and verify that pressing the button completes the circuit only while depressed and that the actuator returns smoothly when released. Use appropriate protective devices in the circuit as specified for the installation.

Usage recommendations

For reliable operation, use this Schneider Electric momentary push button within its rated voltage and current limits and in environments consistent with standard indoor electrical installations. Regularly inspect the actuator for wear if used in high-cycle applications and follow applicable electrical codes for wiring and mounting. When integrating into control systems, coordinate with contactors, relays, or input modules rated for 250 V/16 A or provide suitable interfacing to protect sensitive electronics.