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Home Products Circuit Protection Circuit Breakers~~MM1-B-34-615-1-3BC-B-C~~

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MM1-B-34-615-1-3BC-B-C - Carling Technologies

Name: Carling Technologies MM1-B-34-615-1-3BC-B-C
Brand: Carling Technologies
SKU: MM1-B-34-615-1-3BC-B-C
Price: 20.524 USD
Availability: InStock
Rating: 5 (4 reviews)

Manufacturer Part Number: MM1-B-34-615-1-3BC-B-C

Manufacturer: Carling Technologies

Allelco Part Number: 98D-MM1-B-34-615-1-3BC-B-C

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 48,367 pcs available, New & Original

Parts Description: CIRCUIT BREAKER

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Data sheet: -

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Specifications

MM1-B-34-615-1-3BC-B-C Tech Specifications
Carling Technologies - MM1-B-34-615-1-3BC-B-C technical specifications, attributes, parameters and parts with similar specifications to Carling Technologies - MM1-B-34-615-1-3BC-B-C

Product Attribute	Attribute Value
Manufacturer	Carling Technologies
Voltage Rating - DC	80 V
Voltage Rating - AC	250 V
Number of Poles	1
Mounting Type	Panel Mount
Illumination Voltage (Nominal)	-

Product Attribute	Attribute Value
Illumination	None
Current Rating (Amps)	15A
Breaker Type	Magnetic (Hydraulic Delay)
Approval Agency	CSA, UL1077
Actuator Type	Lever

Frequently Asked Questions(FAQ)

What are the key performance characteristics of the MM1-B-34-615-1-3BC-B-C circuit breaker in high-inrush current applications?: The MM1-B-34-615-1-3BC-B-C employs a magnetic-hydraulic delay mechanism that allows it to tolerate brief overcurrent events typical of inductive or capacitive loads, such as motor startups or transformer energizing. Its 15A rating at 250 V AC provides a safety margin for sustained loads up to 12A continuous, per common derating practices. The hydraulic delay ensures nuisance tripping is minimized during transient surges below 10× rated current, while still responding rapidly to sustained overloads above 135% of nominal current within 1–10 seconds depending on magnitude.

How does the MM1-B-34-615-1-3BC-B-C compare to thermal-magnetic breakers in terms of trip response under cyclic loading conditions?: Unlike purely thermal breakers that rely on heat accumulation and may exhibit variable trip times under repeated short-duration overloads, the MM1-B-34-615-1-3BC-B-C uses a fluid-damped magnetic actuator that provides more consistent timing across cycles. This makes it better suited for applications with frequent motor restarts or pulsed loads, where thermal memory effects in conventional breakers could lead to premature tripping or delayed response.

Can the MM1-B-34-615-1-3BC-B-C be used in DC power distribution systems, and what derating considerations apply?: Yes, the MM1-B-34-615-1-3BC-B-C is rated for 80 V DC, making it suitable for low-voltage DC applications such as battery-powered systems or telecom infrastructure. However, DC arcs are harder to interrupt than AC due to the absence of zero-crossings, so the breaker should not be subjected to fault currents exceeding its interrupting capacity. For DC use, ensure the system voltage does not exceed 80 V and that fault energy is limited by upstream impedance or current-limiting fuses.

What panel mounting specifications and mechanical clearances are required for installing the MM1-B-34-615-1-3BC-B-C?: The MM1-B-34-615-1-3BC-B-C is designed for standard panel mounting with a lever actuator protruding through a 20.2 mm × 30.5 mm rectangular cutout. Adequate clearance (minimum 12 mm) should be maintained around the housing to allow for heat dissipation and actuator movement. The mounting flange requires four M3 screws torqued to 0.5–0.7 N·m to ensure proper sealing and mechanical stability, especially in vibration-prone environments.

How does the MM1-B-34-615-1-3BC-B-C perform in high-altitude or low-pressure environments, and are there any derating requirements?: At altitudes above 2000 meters, air density decreases, reducing dielectric strength and convective cooling. While the MM1-B-34-615-1-3BC-B-C is not explicitly rated for high-altitude operation in its datasheet, similar Carling M-series breakers typically require voltage derating above 2000 m—approximately 1% per 100 m elevation gain. For reliable operation above 3000 m, consult Carling Technologies for altitude-specific validation or consider reinforced insulation in the system design.

What are the differences in fault interruption behavior between the MM1-B-34-615-1-3BC-B-C and solid-state electronic protection circuits?: The MM1-B-34-615-1-3BC-B-C provides electromechanical interruption with inherent galvanic isolation and no standby power consumption, making it ideal for fail-safe applications. In contrast, solid-state protectors offer faster response (microsecond range) but may fail shorted or require auxiliary power. The hydraulic-magnetic design of the MM1-B-34-615-1-3BC-B-C ensures reliable disconnection even during slow-rising overloads, where semiconductor-based systems might not detect anomalies until damage occurs.

Is the MM1-B-34-615-1-3BC-B-C suitable for use in marine or high-humidity environments, and what conformal coating or sealing options exist?: The MM1-B-34-615-1-3BC-B-C meets UL1077 and CSA standards, indicating baseline resistance to environmental stress, but it lacks IP-rated sealing. In high-humidity or salt-spray environments, additional enclosure protection (e.g., NEMA 4X) is recommended. Carling does not offer factory-applied conformal coating on this model, so field-applied coatings should avoid the actuator mechanism and terminal areas to prevent operational interference.

How does the trip curve of the MM1-B-34-615-1-3BC-B-C align with IEC 60947-2 classifications, and what load types is it best matched to?: While not certified to IEC 60947-2, the MM1-B-34-615-1-3BC-B-C exhibits trip characteristics similar to a Type B curve, tripping between 3–5× rated current for short circuits and within 2–10 seconds at 200% load. This makes it well-suited for resistive and lightly inductive loads such as heaters, lighting circuits, and small motors with moderate inrush. It is less appropriate for high-inductance loads requiring Type C or D curves.

What are the long-term reliability implications of using the MM1-B-34-615-1-3BC-B-C in applications with frequent manual resets?: Repeated manual cycling can accelerate wear on the internal hydraulic piston and spring mechanisms. While the MM1-B-34-615-1-3BC-B-C is rated for 10,000 mechanical operations, frequent resets under fault conditions may degrade performance over time. For applications with high reset frequency, consider remote monitoring or automatic reset prevention to extend service life and maintain calibration integrity.

How does the MM1-B-34-615-1-3BC-B-C compare to the MM1-B-34-620-1-3BC-B-C in terms of current rating and application suitability?: The MM1-B-34-615-1-3BC-B-C is rated for 15A, while the MM1-B-34-620-1-3BC-B-C is rated for 20A, both sharing the same hydraulic-magnetic technology and mounting form factor. The 15A version offers finer granularity for protecting circuits with lower continuous loads, reducing the risk of oversizing and improving fault sensitivity. Select the MM1-B-34-615-1-3BC-B-C when downstream components are rated below 16A to ensure tighter coordination and reduced let-through energy during faults.

What coordination challenges might arise when using the MM1-B-34-615-1-3BC-B-C in a multi-breaker power distribution hierarchy?: Selective coordination requires that only the breaker closest to a fault trips. The MM1-B-34-615-1-3BC-B-C’s time-current curve must be analyzed against upstream devices to ensure a minimum 0.1-second delay margin at fault levels. Its moderate instantaneous trip threshold (typically 3–5× In) may overlap with downstream fuses or breakers, so time-current plotting is recommended to avoid cascading outages in critical systems.

Are there known compatibility issues when integrating the MM1-B-34-615-1-3BC-B-C with electronic control systems or PLCs?: The MM1-B-34-615-1-3BC-B-C is a passive mechanical device and does not interfere with control signals. However, its lever actuator position can be monitored via external microswitches if status feedback is needed. Ensure that any added sensing circuitry does not impose mechanical load on the actuator. The absence of illumination in this model means visual status must be inferred manually or through auxiliary indicators.

Parts with Similar Specifications

The three parts on the right have similar specifications to Carling Technologies MM1-B-34-615-1-3BC-B-C

Product Attribute
Part Number	MM1-B-34-615-1-3BB-B-C	MM1-B-34-615-1-3CB-B-C	MM1-B-34-615-1-3EB-B-C	MM1-B-34-615-1-2JB-B-C
Manufacturer	Carling Technologies	Carling Technologies	Carling Technologies	Carling Technologies
Illumination	-	-	-	-
Actuator Type	-	-	-	-
Voltage Rating - AC	-	-	-	-
Voltage Rating - DC	-	-	-	-
Breaker Type	-	-	-	-
Approval Agency	-	-	-	-
Illumination Voltage (Nominal)	-	-	-	-
Number of Poles	-	-	-	-
Current Rating (Amps)	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

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Delivery Method

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Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

QC (Quality Warranty)
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Electrostatic Discharge Protection and Handling

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