K16 16mm Mushroom Square Non-Illuminated Push Button Switch (Momentary)
Model K16-921, K16-922
K16-921, K16-922 by JINHONG for industrial control panels, OEM equipment and automation systems. Category: K16 16mm Push Button Switch.
- Mounting diameter16 mm
- Head shapeMushroom Square
- IlluminationNon-Illuminated
- OperationMomentary
- Insulation voltage (Ui)250 V
Product Information
The K16-921 is the mushroom square, non-illuminated, momentary version of the K16 16 mm panel-mount push button switch series; Thermal current (Ith): 5 A; Insulation voltage (Ui): 250 V; Protection degree: IP65 — for industrial control panels, machinery and OEM equipment.

Key features
- Mounting diameter: 16 mm
- Protection degree: IP65
- Initial contact resistance: ≤50 mΩ
- Terminal style — 110-type solder / quick-connect terminal
- Mechanical life: 300,000 operations
- Models in this version — K16-921, K16-922
At a glance
| Mounting diameter | 16 mm |
| Head shape | Mushroom Square |
| Illumination | Non-Illuminated |
| Operation | Momentary |
| Insulation voltage (Ui) | 250 V |
| Thermal current (Ith) | 5 A |
| Min applicable load | 5V DC, 10mA |
| Protection degree | IP65 |
Characteristics
| Electrical ratings | |
| Series contact options | 1NO+1NC; 2NO+2NC |
| Insulation voltage (Ui) | 250 V |
| Thermal current (Ith) | 5 A |
| Min Applicable Load | 5V DC, 10mA |
| Initial contact resistance | ≤50 mΩ |
| Insulation resistance (500V DC) | 100 MΩ |
| Dielectric strength | Switch Unit: 2,000V AC, 1 min. between live/non live part and terminals of different poles; 1,000V AC, 1 minute between terminals of the same pole; 1,500V AC, 1 minute between contact and lamp terminals. Illumination Unit: 2,000V AC, 1 min. between live part/ground |
| Mechanical & endurance | |
| Terminal style | 110-type solder / quick-connect terminal |
| Vibration Resistance | 10 to 55Hz, amplitude 1.5mm p-p |
| Weight | >10g |
| Electrical life | 100,000 operations |
| Mechanical life | 300,000 operations |
| Soldering Temperature | 20W/5 seconds or 260°C/3 seconds |
| Operating humidity | 45 to 85% RH |
Contact Rating
| AC contact capacity | Resistive: 110V/1A; 250V/0.5A; Inductive: 110V/0.7A; 250V/0.5A |
| DC contact capacity | Resistive: 24V/1A ; 110V 0.2A; Inductive: 24V/0.7A; 110V/0.1A |
| Mounting diameter | 16 mm |
| Protection degree | IP65 |
| Contact material | Gold-plated silver alloy |
| Operating temperature | -25°C to +60°C |
| Storage temperature | -40°C to +70°C |
| Approvals / standards | CCC, UL, CE |
| Contact block family | K16 |
| Contact block form | C series |
Specifications
Selection chart — Mushroom Square non-illuminated push button switch, 16 mm panel cut-out. Contact arrangement, lens colour and lamp voltage are specified when ordering.
| Head Shape | Illumination | Operation | Contact Block | Model |
|---|---|---|---|---|
| Mushroom Square | Non-Illuminated | Momentary | Standard Contact | K16-921 |
| Mushroom Square | Non-Illuminated | Momentary | Standard Contact | K16-922 |
Factory direct from Wenzhou Jinhong, OEM/ODM welcome.
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