MP140 - 40 Amp Circuit Breaker Description
MP140 - 40 Amp Circuit Breaker
The MP140 is a 40 amp, 1-pole, 120V thermal-magnetic circuit breaker for your compatible electrical equipment that requires the MP-T configuration. For anyone matching a breaker in an existing or legacy installation, the key isn't simply finding another 40A breaker—it is making sure the catalog number, breaker type, pole count, voltage, interrupt rating, frequency, and physical compatibility all match the equipment.
Key Features and Benefits
- 40 Amp Rating: The MP140 has a 40A continuous current rating, making amperage a primary specification to confirm when selecting a replacement.
- Single-Pole Design: Its 1-pole configuration provides another clear reference point when matching an existing breaker.
- 120V Rating: Rated for applications requiring a 120V circuit breaker.
- MP-T Configuration: The MP-T type designation helps identify the correct form, fit, and functional replacement for compatible equipment.
- Thermal Magnetic Circuit Breaker: Manufacturer information identifies the MP140 as a miniature thermal magnetic circuit breaker.
- 50/60Hz Rated: Suitable where the electrical system requirements match its stated 50/60Hz frequency rating.
- 40°C Maximum Operating Ambient: Manufacturer data specifies a maximum operating ambient temperature of 40°C.
Technical Specifications
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Catalog Number / MFN: MP140
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Article Number: US2\:MP140
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Product Type: Miniature Thermal Magnetic Circuit Breaker
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Type / Design: MP-T
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Amperage Rating: 40A
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Continuous Current Rated Value: 40A
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Number of Poles: 1
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Voltage Rating: 120V
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Interrupt Rating: 10k
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Frequency: 50/60Hz
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Maximum Operating Ambient Temperature: 40°C
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HACR Rated: Yes
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Net Weight: 0.265 lb
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Country of Origin: Mexico
Material Compliance and Certifications
- HACR Rated: Yes
- RoHS Compliance: Manufacturer data lists this information as not available
- REACH Article 33: Manufacturer documentation references information concerning the current candidate list
Where It Works Best
The MP140 40 amp circuit breaker is a practical form, fit, and functional replacement candidate for compatible existing or legacy electrical equipment that specifically calls for the MP-T configuration and matches its 40A rating, 1-pole design, 120V rating, 10k interrupt rating, 50/60Hz frequency, and other application requirements.
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.
Specifications
- Width:1.0
- Height:3.13
- Depth:2.5
- Poles:1
- Amperes:40
- A.I.C. Rating & Volts:10k @ 120VAC
- Type:MP
- Approx Dimensions:1.00"W x 3.13"L x 2.50"D
- Additional Notes:40°C, HACR Rated, Plug-In, Thermal-Magnetic Trip Circuit Breaker. - discontinued by the Manufacturer
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE ground shipping on breaker orders over $100 and all other items with orders over $500.
Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.
If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
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In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).
