Bolt-on QOB circuit breakers are for use in NQO and NQOD panelboards. QOB circuit breakers have an overcenter, trip-free toggle mechanism with quick-make, quick break action and positive handle indication. The tripping mechanisms in two-and three-pole circuit breakers operate such that an overcurrent on any pole of the circuit breaker will cause all poles of the circuit breaker to open simultaneously. Each pole has an individual thermal-magnetic trip element calibrated for 40°C ambient temperature.
Specifications
| Brand Name |
Square D |
Sub Brand |
QO® |
| Item Name |
Miniature Circuit Breaker |
Type |
Type QOB, Standard |
| Number of Poles |
3 |
Interrupt Rating |
10 kA |
| Amperage Rating |
20 A |
Voltage Rating |
120/240 VAC |
| Terminal Connection |
Pressure Plate |
Mounting Type |
Bolt-On |
| Phase |
3 |
Frequency Rating |
60 Hz |
| Conductor Size |
14-8 AWG Aluminum/Copper |
NEMA Rating |
Type AB1 |
| Trip Type |
Thermal Magnetic |
Temperature Rating |
40 °C |
| Dimensions |
2-1/4 in W x 2.91 in D x 3 in H |
For Use With |
NQO and NQOD Panelboards |
| Standards |
UL Listed, CSA Certified, RoHS Compliant |
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