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B290HH
The B290HH from Siemens is a low voltage molded case circuit breaker designed for reliable protection in electrical systems. With a voltage rating of 120/240V and an amperage capacity of 90A, this device is suitable for single-phase applications.
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Technical specifications for B290HH
| Manufacturer | Siemens |
|---|---|
| Product Type | Low Voltage Molded Case Circuit Breaker |
| Product Line | SpeedFax |
| Part Number | B290HH |
| UPC | 783643270077 |
| Voltage Rating | 120/240V |
| Amperage Rating | 90A |
| Poles | 2 Poles |
| Trip Range | Thermal Magnetic |
| Interrupt Rating | 65 AIC |
| Phase | Single-phase |
| Mounting Type | Panelboard Bolt-on |
| Connection Type | Bolt-on Terminal Connection |
| Wire Size Capacity – Copper | 4 to 1/0 AWG |
| Wire Size Capacity – Aluminum | 2 to 1/0 AWG |
| Temperature (Ambient) Rating | 40 °C |
| Nominal Frequency | 60 Hz |
| Certification | UL 489 Certified |
The Siemens B290HH circuit breaker, classified under the SpeedFax series, operates as a low voltage molded case unit. It is configured for single-phase operation and supports a voltage range of 120 to 240 volts, making it versatile for various applications. This breaker has a rated current of 90 Amperes and features a two-pole design, which is typical for circuit protection needs in residential and industrial settings.
A key feature of the B290HH is its thermal magnetic trip mechanism, which ensures that the circuit breaker will effectively interrupt current during overload or fault conditions. The device comes with an interrupt rating of 65 AIC, providing an essential safety margin against electrical faults.
Installation of this breaker follows a panelboard bolt-on mounting type, making it straightforward to integrate into existing electrical panels. The connection method is likewise bolt-on, allowing for solid connections. Users can connect copper wires sized from 4 AWG to 1/0 AWG, or aluminum wires from 2 AWG to 1/0 AWG, ensuring compatibility with different conductor types.
Designed to operate within ambient temperatures reaching up to 40 °C, this circuit breaker also functions effectively at a nominal frequency of 60 Hz. The B290HH unit carries the UL 489 certification, verifying its compliance with recognized safety standards, thus ensuring reliability and effective performance in the field.
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