Murray MQ140 QO Replacement 40-Amp Single Pole Circuit Breaker
Why you'll like it
- Reliable Overload Protection — Features a thermal-magnetic trip mechanism to prevent circuit overheating and potential electrical hazards.
- Seamless Compatibility — Designed as a standard plug-in breaker compatible with specific load centers and panelboards.
- Durable Construction — Built to meet high manufacturing standards for long-lasting performance in residential electrical panels.
- Easy Installation — Standard single-pole design allows for straightforward mounting into compatible electrical enclosures.
Product details
Description
The Murray MQ140 QO Replacement 40-Amp Single Pole Circuit Breaker is engineered to provide reliable overload and short-circuit protection for residential electrical systems. Designed as a standard 120-volt plug-in breaker, it offers seamless compatibility with legacy load centers and specific panelboards.
Featuring a thermal-magnetic trip mechanism, this electrical component helps safeguard your home wiring by quickly interrupting current flow during overload conditions. Built with precision and durability in mind, it ensures steady performance and peace of mind for electrical installations requiring a dependable 40-amp single-pole switch.
How to use
- Ensure the main power supply is completely switched off before installation.
- Snap the single-pole breaker securely onto the compatible bus bar within the electrical panel.
- Connect the appropriately sized copper or aluminum wire to the terminal and tighten to the manufacturer-specified torque rating.
- Verify secure placement before restoring power.
Ingredients
High-grade copper and brass internal components, durable thermoset plastic housing, calibrated bimetallic thermal trip element, electromagnetic armature.
As printed by the brand. Check the pack label if you have an allergy.
Specifications
| Brand | Murray |
|---|---|
| UPC | 040892528176 |
| Ships from | USA (sourced directly), checked in Navi Mumbai |
| Sold by | Dropy.in |
Ratings & reviews
From our customers
FAQs
What is a replacement for a murray breaker?
Siemens classified circuit breakers, such as the Type QD line, are commonly used as compatible replacements for legacy Murray load centers and panels. Always verify panel compatibility and electrical specifications before installation.
Are Murray circuit breakers still available?
While the Murray brand name has transitioned under Siemens manufacturing, genuine and compatible replacement models like the MQ140 remain sought after for older electrical systems.
Are Murray and Siemens breakers the same?
Many Murray electrical products were manufactured by Siemens, and specific series share identical physical dimensions and electrical ratings, making them cross-compatible in designated panels.
Is this Murray circuit breaker an authentic USA import available in India?
Yes, this product is an authentic USA-imported electrical component. Dropy sources all items directly from the United States to ensure genuine quality and reliability for your imported hardware needs.
What wire range and torque are recommended for this circuit breaker?
This 40-amp single-pole breaker typically accommodates copper or aluminum wire ranges of AWG 12 to 10, requiring a tightening torque of 25 inch-pounds for secure installation.
How long will delivery take?
Most orders arrive in 15–20 days: we source each product directly from the USA, check it at our Navi Mumbai warehouse and pack it on video. Items marked Dropy Express ship from our India warehouse and arrive in 3–5 days.
Is cash on delivery available?
Full cash on delivery is available all over India on Dropy Express items. For other orders from ₹2,499 to ₹15,000 you can use Partial COD: pay 25% online now and the rest in cash on delivery.
Are your products genuine?
Yes. Every product is 100% authentic, sourced directly from the USA, quality-checked and packed on video at our Navi Mumbai warehouse.
What if my order arrives damaged or wrong?
Write to us at [email protected] as soon as it arrives. Damaged, wrong or not as described, our Buyer Protection gives you a full refund. The details are in our Return, Refund & Cancellation Policy.
Is delivery free?
Delivery is free on orders from ₹1,499. Below that a ₹79 delivery fee applies.