Product image is representative; revision or series may vary. Contact us to request a specific version.
The Siemens QF240A is a GFCI circuit breaker designed for reliability. This unit features a thermal-magnetic trip mechanism and operates at a voltage rating of 120/240 VAC. Designed for safety, it carries a GFCI sensitivity of 5mA and has an amperage rating of 40A.
We sell industrial automation parts backed by our free 2-Year DO Supply Warranty.
Same-day domestic and fast international shipping with UPS, FedEx, DHL, and more.
AMEX, Visa, MasterCard, Discover, wire transfer, net terms, and more.
Repairs and exchanges are available for all automation products.
Drop shipping, blind shipping, and account shipping with no extra fees.
| Manufacturer | Siemens |
|---|---|
| Product Type | GFCI Circuit Breaker |
| Product Line | Q Series |
| Part Number | QF240A |
| UPC | 887621216726 |
| Trip Mechanism | Thermal-Magnetic |
| GFCI Sensitivity | 5mA (Class A) |
| Terminal Type | Lug |
| Wire Size Range | 6-8 AWG |
| Compatible Panels | Siemens EQ, NQ, Gould |
| Amperage Rating | 40A |
| Voltage Rating | 120/240V AC |
| Number of Poles | 2 Poles |
| Phase | Single |
| Connection Type | Plug-In |
| Interrupting Rating | 10kA |
| Frequency Rating | 50/60 Hz |
| Housing Material | Plastic (ABS) |
Siemens QF240A is classified as a GFCI circuit breaker, featuring a robust design optimized for electrical safety. Its trip mechanism relies on thermal-magnetic technology, which helps ensure effective protection against overloads and short circuits. Rated for 40 Amperes, this device can handle high-demand circuits while providing necessary current protection.
This breaker operates effectively at a voltage rating of 120/240V AC and incorporates a GFCI sensitivity of 5mA, which is classified under Class A specifications for ground fault protection. The QF240A has two poles and is intended for single-phase circuits. The terminal type is designed as a lug, capable of accommodating wire sizes ranging from 6 to 8 AWG, supporting various installation needs.
The connection method for the breaker is a straightforward plug-in design, making it easy to install within compatible Siemens panels, including the EQ and NQ series as well as Gould panels. With an interrupting capacity rated at 10kA, it provides reliable protection against fault conditions. This circuit breaker operates efficiently across frequency ratings of 50 and 60 Hz.
Additionally, the housing is constructed from durable ABS plastic, contributing to the overall resilience of the device in various operational scenarios. Overall, the Siemens QF240A GFCI circuit breaker is a reliable choice for safeguarding electrical installations.