Square D Q1B260VH Molded Case Circuit Breaker
- 60A
- 2 Pole
- Bolt-On
Quantity
Square D Q1B260VH - 60A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for commercial power distribution, the Q1B260VH is a 2-pole, 60A bolt-on molded case circuit breaker for legacy Square D NQOB panelboards. It utilizes thermal-magnetic trip technology for reliable protection. This breaker installs into older NQOB enclosures. It is officially replaced by the QOB260VH, which requires an SK5668 mounting kit for compatibility.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q1B260VH |
| Series | Q1B |
| Amperage | 60A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | Q1B |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Square D NQOB Panelboards |
| Wire Gauge | #8-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Common Trip, Non-Interchangeable Trip, High Interrupting Capacity |
Product FAQs
7 answersWhich panelboards accept the Q1B260VH circuit breaker?
This breaker is specifically designed for legacy Square D NQO and NQOB panelboards. Using an exact Q1B replacement avoids the need for adapter brackets required when installing newer breaker styles.
Is the Q1B series still in active production?
No, the Square D Q1B series is an obsolete, legacy product line. Sourcing an exact Q1B260VH replacement allows you to maintain existing panels without modifying the bus or using retrofit kits.
Can I use a modern QOB breaker in place of the Q1B260VH?
Yes, but it requires additional hardware. To install a modern QOB breaker in an NQOB panelboard, you must use an SK5668 mounting assembly. For older NQO panels, an SK5669 mounting assembly is required.
What does the VH suffix indicate on the Q1B260VH?
The VH designates a very high interrupting rating for this frame size. It provides a 22kAIC capacity at 240V, offering greater fault current protection than standard 10kAIC Q1B models.
What wire gauge is compatible with the terminals on this breaker?
The box lugs accept wire sizes from #8 AWG up to #2 AWG. Ensure proper torque specifications are followed during installation to maintain a secure connection.
What type of trip mechanism does the Q1B260VH utilize?
It uses a thermal magnetic trip unit with fixed long-time and instantaneous functions. This provides reliable protection against both sustained overloads and sudden short circuits.
Does the Q1B260VH require a specific mounting method?
Yes, it is a bolt-on circuit breaker. It must be bolted directly to the panelboard bus, which provides a highly secure, vibration-resistant connection compared to plug-on alternatives.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- MCMichael C.ReviewingSquare D Q1B3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/11/22Fast Service.
Fast Service.