Siemens Type QD circuit breakers are UL classified for use in specific Square D load centers in place of Square D QO circuit breakers. For easy reference, a panelboard compatibility list is provided with each circuit breaker. Siemens QD circuit breakers are available in 15 to 60 A, single and double pole configurations and are rated at 120/240 VAC. All QD breakers are supplied with load side connectors suitable for 60/75 deg C wire and are calibrated for 40 deg C maximum ambient applications.
Unit: EA
UPC: 783643239654
Model Number: D140
Features
- Square D QOÂ compatible – 3/4 in plug-in format
- UL classified for use in place of Square D Type QO circuit breakers in Square D load centers
- Economical alternative for replacement or in new construction
- Developed and tested to UL 489, assuring performance equal to or exceeding UL requirements
Additional Information
- Current Rating: 40 A
- Dimensions: 1 in H x 3 in W x 3 in D
- Frame Type: QD
- Interrupt Rating: 10 kA
- Mounting Type: Plug
- Number of Poles: 1
- Operating Temperature: 40 deg C
- Suitable for: Square D QO Load Center
- Type: Low Voltage
- Voltage Rating: 120 V
Application: For electrical distribution and residential applications





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