| PartNumber | A-20GQ21-B | A-20GQ22-B7-K | A-20GQ21-B7-K |
| Description | Basic / Snap Action Switches BASIC SWITCH | Basic / Snap Action Switches BASIC SWITCH | Basic / Snap Action Switches BASIC SWITCH |
| Manufacturer | Omron | Omron | Omron |
| Product Category | Basic / Snap Action Switches | Basic / Snap Action Switches | Basic / Snap Action Switches |
| RoHS | Y | Y | Y |
| Contact Form | SPDT | SPDT | SPDT |
| Switch Function | ON - (OFF), OFF - (ON) | ON - (OFF), OFF - (ON) | ON - (OFF), OFF - (ON) |
| Actuator | Roller Plunger | Roller Plunger | Roller Plunger |
| Current Rating | 20 A | 20 A | 20 A |
| Voltage Rating AC | 250 VAC | 250 VAC | 250 VAC |
| Operating Force | 0.5 N | 0.5 N | 0.5 N |
| Termination Style | Screw | Screw | Screw |
| Illumination Color | - | - | - |
| Series | A | A | A |
| Brand | Omron Automation and Safety | Omron Automation and Safety | Omron Automation and Safety |
| Illuminated | Non-Illuminated | Non-Illuminated | Non-Illuminated |
| Lamp Type | - | - | - |
| Mounting Style | Chassis Mount | Chassis Mount | Chassis Mount |
| Actuator Style | Roller Plunger | Roller Plunger | Roller Plunger |
| Product Type | Snap Action Switches | Snap Action Switches | Snap Action Switches |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Switches | Switches | Switches |
| Part # Aliases | A20GQ21B A20GQ21BNC | A20GQ22B7K A20GQ22B7KNC | 9378545 A20GQ21B7K A20GQ21B7KNC |
| Unit Weight | 1.410958 oz | 1.410958 oz | 1.410958 oz |