Siemens 3SB3246-0AA21 Illuminated Pushbutton Unit
Siemens 22mm Illuminated Momentary Pushbutton, Red, 24V AC/DC, 1NC.
The Siemens 3SB3246-0AA21 is a 22mm round, plastic, illuminated pushbutton unit designed for momentary operation. It features a flat button with an integrated red LED, operating at 24V AC/DC, and utilizes screw terminals for a 1 normally closed (NC) contact. This unit is part of the older SIRIUS 3SB3 series, which has been phased out, with the SIRIUS ACT 3SU1 series, model 3SU1102-0AB20-1CA0, being its preferred successor.
This red illuminated pushbutton is typically used in industrial applications to indicate a stop condition, error state, or to trigger a safety function. Its 1 NC contact configuration is crucial for normally closed control circuits.
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| Mounting Diameter | 22mm |
| Actuator Type | Pushbutton, Flat |
| Illumination | Integrated LED |
| Voltage | 24V AC/DC |
| Contact Configuration | 1 NC |
| Terminal Type | Screw |
| Color | Red |
| Series | SIRIUS 3SB3 |