The Square D QOB260VH1021 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 60 Amps and a voltage rating of 120/240VAC. It has an interrupting rating of 22kAIC at 120/240VAC. The QOB260VH1021 has a bolt-on mounting type and includes long time and instantaneous trip functions.
['Square D NQ Panelboards', 'Square D NQOD Panelboards']
Wire Gauge
8-2 AWG
Max Wire
2 AWG
Min Wire
8 AWG
Protection and operation
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed Thermal, Fixed Magnetic
Standards and features
Standards
RoHS, REACh, HACR
Approval
UL, CSA
Temp Rating
40 °C
Product FAQs
7 answers
What panelboards are compatible with the QOB260VH1021?
This bolt-on circuit breaker is designed for use in Square D NQ and NQOD panelboards, as well as QOB series load centers. It is not compatible with standard QO plug-on load centers.
How many panel spaces does the QOB260VH1021 require?
This breaker requires three panel spaces. The 2-pole breaker occupies two spaces, and the factory-installed shunt trip accessory requires one additional space.
What does the 1021 suffix indicate on this circuit breaker?
The 1021 suffix indicates that the breaker includes a factory-installed 120/240VAC shunt trip accessory. This allows the breaker to be tripped from a remote location using a control signal, which is commonly used for emergency shutdowns or automated control systems.
How is the shunt trip wired on the QOB260VH1021?
The shunt trip accessory features two dedicated terminals that accept 14 to 12 AWG copper wire. You must connect a 120V to 240V AC control voltage across these terminals, typically routed through a normally open remote switch or relay, to activate the trip mechanism.
What does the "VH" in the QOB260VH1021 catalog number mean?
The "VH" designates this as a high-interrupting breaker within the QO and QOB series, providing a 22kAIC rating at 120/240VAC, compared to the standard 10kAIC rating found on non-VH models.
Can I add a shunt trip to a standard QOB260VH breaker in the field?
No, shunt trips for Square D QO and QOB miniature circuit breakers must be factory-installed. If you require a shunt trip, you must order a breaker with the appropriate suffix, such as the QOB260VH1021.
Does the QOB260VH1021 provide GFCI or AFCI protection?
No, this is a standard thermal-magnetic circuit breaker with a shunt trip accessory. It does not provide ground-fault or arc-fault circuit interruption.
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