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B120
The Siemens B120 is a miniature circuit breaker designed for efficient overload and short-circuit protection. With a rated current of 20 Amps and operating voltage of 120 Volts AC, it is rated to interrupt faults up to 10 kA.
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Technical specifications for B120
| Manufacturer | Siemens |
|---|---|
| Product Type | Miniature Circuit Breaker |
| Product Line | B Series |
| Part Number | B120 |
| UPC | 783643263420 |
| Weight | 0.31 lbs (0.14 kg) |
| Pole | 1 Pole |
| Rated Current | 20 Amps |
| Voltage Rating | 120 Volts AC |
| Interrupting Capacity | 10kA |
| Trip Curve Type | Type B |
| Frequency | 60 Hz |
| Mounting | DIN Rail |
| Frame Size | B |
| Terminal Type | Screw-type terminals |
| Terminal Torque | 2.8 Nm |
| Operating Temperature Range | -40°C to +70°C |
| Insulation Voltage | 240 V AC |
| Mounting Position | Vertical |
| Handle | Toggle switch with ON/OFF |
The Siemens part B120 falls under the B Series of miniature circuit breakers. This component is engineered to provide reliable protection against overloads and short circuits. It has a single pole configuration and a maximum rated current of 20 Amperes. Voltage-wise, it works with an AC supply of 120 Volts. Its interrupting capacity is rated at 10 kA, ensuring effective fault clearance. The device follows a Type B trip curve that allows it to respond appropriately to various fault conditions at a frequency of 60 Hz.
Installation is facilitated by DIN rail mounting, ensuring compatibility with standard mounting systems in control panels. Its frame size is categorized under B, allowing it to fit within tight spaces while maintaining high performance. For secure connections, the breaker features screw-type terminals, with a recommended terminal torque setting of 2.8 Nm.
In terms of environmental resilience, the B120 operates within a temperature range spanning from -40°C to +70°C, making it suitable for various climates and conditions. Additionally, it boasts an insulation voltage of 240 V AC, ensuring protection from electrical breakdown. The vertical mounting position is designed for optimal circuit panel layout and accessibility, with a toggle switch handle that allows for clear ON/OFF operation.
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