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| PartNumber | 3120-F521-H7T1-W19AG4-5A | 3120-F521-H7T1-W19DG3-3A | 3120-F521-H7T1-W19FG3-20A |
| Description | Circuit Breakers | Circuit Breakers An extremely versatile range of rocker switch/thermal circuit breakers | CIR BRKR THRM 20A 250VAC 50VDC |
| Manufacturer | E-T-A Circuit Breakers | E-T-A Circuit Breakers | E-T-A |
| Product Category | Circuit Breakers | Circuit Breakers | Accessories |
| Series | 3120-F | 3120-F | 3120-F |
| Type | Thermal Overcurrent Circuit Breaker | Thermal Overcurrent Circuit Breaker | Thermal Overcurrent Circuit Breaker |
| Current Rating | 5 A | 3 A | 20A |
| Voltage Rating AC | 240 VAC | 240 VAC | 240 VAC |
| Voltage Rating DC | 50 VDC | 50 VDC | 50 VDC |
| Number of Poles | 2 Pole | 2 Pole | 2 |
| Actuator Type | Rocker | Rocker | Rocker |
| Minimum Operating Temperature | - 30 C | - 30 C | - |
| Maximum Operating Temperature | + 60 C | + 60 C | - |
| Illuminated | Illuminated | Illuminated | Not Illuminated |
| Height | 21 mm | 21 mm | 25 mm |
| Length | 41 mm | 41 mm | 48 mm |
| Termination Style | Blade | Blade | Blade |
| Voltage Rating | 50 VDC, 240 VAC | 50 VDC, 240 VAC | 50 VDC 240 VAC |
| Width | 33 mm | 33 mm | 35 mm |
| Brand | E-T-A | E-T-A | - |
| Mounting Style | Snap In | Snap In | Snap In |
| Product Type | Thermal Circuit Breakers | Thermal Circuit Breakers | Thermal Circuit Breaker |
| Subcategory | Circuit Breakers | Circuit Breakers | - |
| RoHS | - | E | - |
| Factory Pack Quantity | - | 1 | - |
| Product | - | - | Thermal Circuit Breakers |
| Operating Temperature Range | - | - | - 30 C to + 60 C |
| Mounting Type | - | - | Panel Mount |
| Breaker Type | - | - | Thermal |
| Illumination | - | - | Green |
| Illumination Voltage Nominal | - | - | 90V |