BR140 - Cutler Hammer 40A 120/240V Single-Pole Thermal Magnetic Circuit Breaker Type BR

Product Overview

This listing is for the Eaton (Cutler Hammer) BR140, a Type BR single‑pole thermal magnetic circuit breaker with a 40 A rating and 120/240 V designation.

Verify fit and compatibility with your load center or panel prior to purchase.

Key Features

• Single‑pole thermal magnetic design
• 40 ampere rating
• 120/240 V designation
• Type BR form factor

What this breaker does

The BR140 is a single‑pole thermal magnetic circuit breaker that interrupts a circuit when overload or short‑circuit conditions occur. It is sold under the Eaton (Cutler Hammer) BR series designation.

• Protects one hot conductor (single‑pole)
• Thermal magnetic design responds to overload and short‑circuit conditions

Panel compatibility and fit

The BR140 uses the Type BR form factor. Acceptance depends on the specific panel model and manufacturer guidance, so verify that your panel lists Type BR breakers as acceptable.

• Check panel documentation or labeling for Type BR compatibility
• Do not rely solely on visual similarity—confirm model acceptance

Electrical ratings

Use the BR140 where a 40 A single‑pole breaker with a 120/240 V designation is specified.

• Ampere rating: 40 A
• Voltage designation: 120/240 V
• Pole count: single‑pole

Ordering and installation reminders

Confirm the BR140 part number matches the breaker required for your panel before ordering. A qualified electrician should perform installation in accordance with local codes and the panel manufacturer's instructions.

• Confirm part number BR140 and quantity needed
• Have a qualified electrician install and test the breaker

Before You Order

Verify your panel accepts Type BR breakers and that BR140 is the correct part for your application.

• Confirm the BR140 part number and quantity required
• Ensure a 40 A single‑pole breaker is appropriate for the circuit

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for BR140 - Cutler Hammer 40A 120/240V Single-Pole Thermal Magnetic Circuit Breaker Type BR. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.