| PartNumber | 644H/2 | 644H/21R | 644H/22R |
| Description | Toggle Switches DPDT NKL ON-ON-ON | Toggle Switches Toggle Switch ON-ON-MOM, Dbl | Toggle Switches DP3T 10A 125V 17.5mm Mom-On-Mom |
| Manufacturer | Apem | Apem | - |
| Product Category | Toggle Switches | Toggle Switches | - |
| RoHS | Y | Y | - |
| Illuminated | Non-Illuminated | Non-Illuminated | - |
| Illumination Color | - | - | - |
| Lamp Type | - | - | - |
| Contact Form | DPDT | DPDT | - |
| Switch Function | ON - ON - ON | ON - ON - ON | - |
| Mounting Style | Panel | - | - |
| Termination Style | Solder Lug | - | - |
| Voltage Rating AC | 250 VAC | - | - |
| Bushing Size | M12 | - | - |
| Actuator | Paddle | - | - |
| Terminal Seal | Sealed | - | - |
| Contact Plating | Silver | - | - |
| Housing Material | Polyester | - | - |
| Mounting Type | Bushing | - | - |
| Series | 600H | 600H | - |
| Type | Toggle Switches | - | - |
| Brand | Apem | Apem | - |
| Contact Material | Nickel | - | - |
| Flammability Rating | UL 94 V-0 | - | - |
| Actuator Style | Paddle | - | - |
| Life | 6000 Cycles | - | - |
| Maximum Operating Temperature | + 155 C | - | - |
| Minimum Operating Temperature | - 20 C | - | - |
| Product Type | Toggle Switches | Toggle Switches | - |
| Factory Pack Quantity | 25 | 25 | - |
| Subcategory | Switches | Switches | - |