Leviton LB-G Series 2-Pole Cir...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$273.20
Leviton LB-G Series 2-Pole Circuit Breaker

Leviton LB-G Series 2-Pole Circuit Breaker

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Model: LB240-G

In Stock (leaves warehouse same day if ordered before 3pm ET)

$273.20
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Leviton LB260-G 2-Pole 60A Circuit Breaker

The Leviton LB260-G is a 2-pole, 60A circuit breaker engineered to provide dependable overcurrent protection within panelboards and load centers. As a core component of a branch circuit or feeder circuit protection scheme, this Leviton breaker is built to open the circuit automatically when current exceeds its rated capacity, helping safeguard wiring, connected equipment, and the broader electrical system from damage caused by overloads and short circuits. With a 2-pole configuration and a 60A rating, the LB260-G is sized for circuits that call for higher-capacity protection, such as those feeding larger appliances, subpanels, or dedicated equipment loads. Electrical contractors and facility maintenance teams specify circuit breakers like the LB260-G when they need a reliable, panel-compatible protective device from a trusted manufacturer.

Key Features

  • 2-Pole Configuration: Provides protection across two conductors, suitable for double-pole circuits and higher-capacity branch or feeder applications.
  • 60A Rating: Sized to protect circuits drawing up to 60 amps, matching the breaker to higher-load equipment and subpanel feeds.
  • Circuit Breaker Protection: Automatically interrupts current flow when a circuit exceeds its rated amperage, helping prevent damage from overloads and short circuits.
  • Panelboard-Ready Design: Designed to install in compatible panelboards and load centers as part of a standard branch circuit protection scheme.
  • Leviton Build Quality: Backed by Leviton, a long-established manufacturer of electrical distribution and wiring device products used across commercial, industrial, and residential installations.

Technical Specifications

  • Product Type: Circuit Breaker
  • Poles: 2-Pole
  • Amperage Rating: 60A
  • Brand: Leviton

Typical Applications

  • Panelboard and Load Center Circuit Protection
  • Branch Circuit and Feeder Circuit Wiring
  • Commercial and Industrial Electrical Distribution
  • Equipment and Subpanel Overcurrent Protection
  • Electrical Panel Upgrades and Renovation Projects
  • New Construction Electrical Installations

Why Leviton?

Leviton is a well-known name in electrical distribution equipment, and the LB260-G circuit breaker reflects that reputation with a straightforward, purpose-built 2-pole, 60A design intended for dependable overcurrent protection. Choosing a Leviton breaker for panelboard and load center installations gives contractors and facility teams a protective device from a manufacturer widely used across professional electrical work. For circuits requiring a 60A, 2-pole protective device, the Leviton LB260-G is a straightforward, panel-compatible choice built for reliable performance.

Manufacturer Resources

Product Specs

Product Subgroup:
Circuit Breakers
Product Type:
Circuit Breaker
Product Group:
Circuit Protection
Department:
Electrical

Leviton LB240-G – Frequently Asked Questions

1) What amperages does the Leviton LB-G Series 2-pole breaker come in?
Two ratings: 40A as part number LB240-G, and 60A as LB260-G. Both are 2-pole breakers for double-pole circuits, so pick the rating that matches the conductor size and load you are protecting (60A for subpanel feeds and larger equipment, 40A for smaller dedicated loads).
2) Will a Leviton LB260-G breaker fit in my existing panel?
The LB-G Series breakers are built for Leviton load centers and panelboards. They are plug-in style breakers for Leviton panel interiors, not a universal replacement for a Square D, Eaton or Siemens bus. If your panel is another brand, you need a breaker listed for that panel, not this one.
3) Which Leviton part number do I order for a 40 amp two-pole circuit?
LB240-G. The 60 amp version in the same series is LB260-G. Both are 2-pole, so the only thing changing between them is the amp rating.
4) What should I use instead of a Leviton LB-G breaker on a three-phase feeder?
The Leviton LB-G series is a 2-pole breaker, offered in 40A (LB240-G) and 60A (LB260-G), so it protects two conductors only. A three-phase feeder needs a 3-pole device such as the ABB A2A150TT in the A2 Series, the ABB E150 Series 3-pole thermal magnetic breaker, or the ABB XT4 Series 3-pole molded case breaker kit. For three-phase panelboard distribution, the Square D PowerPacT Q I-Line breaker is another 3-phase-oriented option. Pole count is the deciding factor, not amperage.
5) Is a DIN rail miniature breaker an equivalent to the Leviton LB260-G?
No - they mount differently. The Leviton LB260-G is a 2-pole, 60A breaker built to install in compatible panelboards and load centers as part of a standard branch circuit protection scheme. The Square D C60 UL489 miniature circuit breaker is DIN rail mount, as is the Square D 60109 Multi9 C60 1-pole C-curve MCB. Those suit control panels and enclosures with DIN rail, not a residential or commercial load center bus. If the breaker is going into a panelboard, stay with the LB-G; if it is going on rail inside an equipment enclosure, use the DIN rail MCB.
6) Can I substitute an ABB ST200M breaker for a Leviton LB-G breaker in a load center?
The ABB ST200M Series is a miniature circuit breaker to UL1077, which is a supplementary protector standard rather than a branch circuit breaker standard. The Leviton LB-G series, in 40A (LB240-G) and 60A (LB260-G) 2-pole form, is intended for branch circuit and feeder protection in panelboards and load centers. For a branch circuit or subpanel feed, the LB-G is the device type to use; the ST200M fits supplementary protection downstream of a branch breaker.
7) Do I need a 2-pole breaker or will two single-pole breakers work?
For a 240V load, a water heater, range circuit, mini split or a subpanel feed, you need the 2-pole device. The LB-G 2-pole breaker trips both ungrounded conductors together, so the whole circuit de-energizes at once. Two separate single poles do not trip together and are not an acceptable substitute on a line-to-line load.
8) Can I use the LB260-G to feed a subpanel?
Yes. A 60A 2-pole is a common feeder breaker for a subpanel, and the LB260-G is sized for exactly that kind of higher-capacity feed as well as larger appliance and dedicated equipment loads. Size your feeder conductors and the subpanel main lugs to the 60A rating.
9) I need a breaker on DIN rail in a control panel, not a panelboard. Is this the right one?
No. The LB-G Series mounts in a Leviton panelboard or load center. For DIN rail inside control gear, use a miniature circuit breaker built for it, such as the Square D C60 UL489 DIN rail MCB or the ABB ST200M Series C-curve MCB to UL1077. Note the difference: UL489 is branch circuit rated, UL1077 is supplementary protection only.
10) I need 3-pole protection for a three-phase motor. Does the Leviton LB-G cover that?
No, the LB-G Series is 2-pole only. For three-phase, look at 3-pole devices like the ABB E150 Series thermal magnetic breaker, the ABB XT4 Series, or the Square D PowerPacT Q I-Line breaker, depending on the panel or enclosure you are feeding.
11) When would I step up from a Leviton LB-G breaker to a molded case breaker?
The Leviton LB-G series covers 2-pole circuits at 40A and 60A for branch and feeder protection in panelboards and load centers - larger appliances, dedicated equipment loads, and subpanel feeds. When the load moves past what a panel-mounted 2-pole plug-in breaker covers, or needs three poles, the molded case families are the next step: the Square D PowerPacT B thermal magnetic breaker, the ABB A2A150TT in the A2 Series, or the ABB XT4 Series kit. Those are frame-style devices mounted in their own enclosure or switchboard section rather than clipped onto a load center bus.
12) I only need to protect one hot leg - is the Leviton LB-G the right breaker?
No. The Leviton LB-G series is 2-pole and protects across two conductors, sized for double-pole circuits such as larger appliances and subpanel feeds. For a single hot leg, a 1-pole device is the correct choice - the Square D 60109 Multi9 C60 is a 1-pole C-curve miniature circuit breaker, though it is a DIN rail class device rather than a load center breaker, as is the Square D C60 UL489 MCB.
13) Can I standardize my building's panels on LB-G breakers for maintenance stock?
Within Leviton load centers, yes. Keeping LB240-G and LB260-G on the shelf covers the common 40A and 60A 2-pole feeds, appliance circuits and subpanel taps across a property. Mixed-brand panels will each need breakers listed for that specific panel, so audit the panel labels before setting a stocking standard.
How fast can I get the Leviton LB240-G delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Leviton LB240-G come with a warranty?
Absolutely. The Leviton LB240-G is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Leviton LB240-G?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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