Square D QOB330PL Miniature Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Square D
QOB330PL
Miniature Circuit Breaker
Brand
Square D
SKU
QOB330PL
Quantity
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Square D QOB330PL - 30A 3 Pole Miniature Circuit Breaker
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Description
Built for automated lighting systems, the Square D QOB330PL is a 3-pole, 30A miniature circuit breaker equipped with PowerLink remote operation capabilities. It delivers reliable thermal-magnetic protection while allowing facility managers to switch circuits remotely. This bolt-on breaker installs into Square D Powerlink, NQ, and NQOD panelboards. Rated for 10 kAIC at 120/240V, it includes the signature Visi-Trip indicator for immediate visual confirmation of a tripped circuit.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOB330PL |
| Series | QOB |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 120/240VAC, 48VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 240VAC, 10kA @ 120/240VAC, 5kA @ 48VDC |
| Terminal Type | Pressure Plate |
|---|---|
| For Use With | Powerlink Panelboards, NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 14-8 AWG (Al/Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Control Pigtails |
| Standards | CSA C22.2 No. 5, HACR, RoHS, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Mercury Free, RoHS Compliant |
| Special Features | Remotely Operated |
Product FAQs
8 answersWhat does the PL suffix indicate on the QOB330PL circuit breaker?
The PL suffix designates this as a Powerlink remotely operated circuit breaker. It combines standard thermal-magnetic overcurrent protection with an internal mechanism that allows it to be remotely switched on and off, making it ideal for automated lighting control and energy management systems.
Which panelboards accept the QOB330PL breaker?
This bolt-on miniature circuit breaker is compatible with Square D Powerlink, NQ, and NQOD panelboards. It secures directly to the busbar using a bolt-on connection for a reliable, vibration-resistant installation.
How is the remote switching function powered on the QOB330PL?
Remote switching for QOB-PL series breakers requires a 24VDC power supply. Square D offers dedicated power supplies, such as the QOPLPS or QOBPLPS, which mount directly into the panelboard to provide control power for the remote operation.
Does the QOB330PL include a visual trip indicator?
Yes, this breaker features the Square D Visi-Trip indicator. When an overcurrent or short circuit causes the breaker to trip, the handle snaps to a center position and a bright red flag appears in the indicator window, allowing electricians to quickly identify the faulted circuit in a crowded panel.
What wire sizes and materials are compatible with the QOB330PL terminals?
The pressure plate terminals on this 30A breaker accept 14 AWG to 8 AWG conductors. The lugs are dual-rated for both aluminum and copper wire, providing flexibility during installation.
How many remote operations is the QOB330PL rated to handle?
Powerlink remotely operated breakers are highly durable and rated for a minimum of 30,000 remote switching operations. This makes them suitable for daily automated switching of lighting loads or other programmable control applications.
What happens if only one phase experiences an overcurrent on the QOB330PL?
The QOB330PL utilizes an internal common trip mechanism. If an overload or short circuit occurs on any single pole, the internal trip bar ensures all three poles open simultaneously, safely disconnecting all phases and preventing single-phasing damage to connected equipment.
Can I replace a standard QOB330 with a QOB330PL?
While both are 3-pole, 30A bolt-on breakers with identical interrupting ratings, the QOB330PL requires a compatible Powerlink control system and a 24VDC power supply to utilize its remote switching capabilities. If remote operation is not required, a standard QOB330 is the appropriate replacement.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 205 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 3/11/26
Customers say these electrical breakers arrive exactly as ordered and work perfectly for their intended applications. They consistently praise the competitive pricing, which many report is significantly lower than local suppliers. Fast shipping and prompt delivery are frequently highlighted, with many receiving orders within days or even next-day delivery for urgent needs. The breakers arrive well-packaged and in excellent condition. Many reviews emphasize the company's extensive inventory availability, particularly for hard-to-find breakers. One customer experienced difficulty with order cancellation and was charged a restocking fee, which caused dissatisfaction.
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Rating
205 reviews
- BLBOOSTIX L.Verified BuyerReviewingSquare D QOB220 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/17/26QOB220
That's nice breakers!
- PHPaul H.Verified BuyerReviewingSquare D QOB330 - 30A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/5/26Quick shipping and delivery
Shipped and delivered on time for installation at one of our projects. Thank you!
- RMRick M.Verified BuyerReviewingSquare D QOB220 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/3/26Project Mgr
Just what I needed.
- DHDoug H.Verified BuyerReviewingSquare D QOB220 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/3/26Square D QOB breakers
As always, our order arrived timely, and accurate. You can’t beat their prices that’s why we have used this company for years.
- RKRyan K.Verified BuyerReviewingSquare D QOB230VH - 30A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/1/26Awesome
Worked great