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Kfine KFM2E-250H/3400(UNIT2) Molded Case Circuit Breaker
Brand:
Series:
KFM2E
Protection Type:
Main body (with protection function)
How It Works:
Manual
Frame Current:
250A
Tripping Mode:
Electronic
Protection Function:
LSI
Wiring Method:
Front panel wiring
Poles:
3P
Rated Voltage:
400VAC
Installation:
Fixed
Trip Unit:
Electronic release
Rated Current of Release:
-
Breaking Capacity:
80KA
Model:
KFM2E-250H/3400(UNIT2)
Order Number:
Description:
Kfine molded case circuit breaker KFM2E-250H/3400(UNIT2),LSI,80KA,250A,fixed,manual,3P
Product parameters
| Product attributes | Attribute value | Filter product attributes |
|---|---|---|
| Brand： | Kfine | |
| Series： | KFM2E | |
| Appendix： | - | |
| Protection Type： | Main body (with protection function) | |
| How It Works： | Manual | |
| Frame Current： | 250A | |
| Tripping Mode： | Electronic | |
| Protection Function： | LSI | |
| Wiring Method： | Front panel wiring | |
| Poles： | 3P | |
| Rated Voltage： | 400VAC | |
| Installation： | Fixed | |
| Trip Unit： | Electronic release | |
| Rated Current of Release： | - | |
| Breaking Capacity： | 80KA |
Products with the same attribute : 0
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Series Overview
Product Overview
● The circuit breaker features a running current bar graph indicator, pre-alarm indicator, overload indicator, etc.; it possesses the self-diagnostic function and trip test function of the intelligent controller.
● The internal current transformer provides self-generating power. When the three-phase current exceeds 0.2Iₙ or the single-phase current exceeds 0.5Iₙ, it reliably achieves long-time delay, short-time delay, and instantaneous protection characteristics.
● Thermal memory function; Earth leakage protection function; Internal temperature monitoring function.
● Equipped with a communication interface, it can connect to a computer network for remote control, remote monitoring, remote adjustment, and remote communication.
● This series of circuit breakers has an isolation function, indicated by the symbol: ×.
● The external dimensions and installation dimensions are identical to those of the KFM2 series molded case circuit breakers (MCCBs) of the same rating, ensuring good interchangeability during installation.
Scope of Application and Main Features
The KFM2E series intelligent molded case circuit breakers (hereinafter referred to as the circuit breaker) are part of the KFM2 series products. They are new-type circuit breakers developed by our factory using internationally advanced design and manufacturing technology. With a rated insulation voltage of 800V, they are suitable for circuits with AC 50Hz, rated operational voltage up to 690V, and rated operational current up to 800A, used for infrequent switching and infrequent starting of motors.
● The circuit breaker features overload long-time delay inverse time, short-circuit short-time delay inverse time, short-circuit short-time delay definite time, short-circuit instantaneous, and undervoltage protection functions, protecting lines and power supply equipment from damage.
● This series features a compact structure, small size, high breaking capacity, short arcing distance, and comprehensive internal and external accessories.
● Setting the protection function parameters (overload long-time delay inverse time, short-circuit short-time delay inverse time, short-circuit short-time delay definite time, short-circuit instantaneous action) is convenient and intuitive. Users can also customize settings to form the desired protection characteristics, easily achieving selective protection and making the coordination of circuit breakers used in the power distribution network more reasonable.
● The circuit breaker features a running current bar graph indicator, pre-alarm indicator, overload indicator, etc.; it possesses the self-diagnostic function of the intelligent controller; it possesses the trip test function of the intelligent controller.
● The current transformer inside the circuit breaker provides self-generating power. When the three-phase current exceeds 0.2Iₙ or the single-phase current exceeds 0.5Iₙ, it reliably achieves long-time delay, short-time delay, and instantaneous protection characteristics.
● Thermal memory function; Earth leakage protection function; Internal temperature monitoring function.
● This series of circuit breakers has a communication interface, possessing fieldbus communication capability. It can connect to a computer network for remote control, remote monitoring, remote adjustment, and remote communication.
● This series of circuit breakers has an isolation function, indicated by the symbol: ×.
● The external dimensions and installation dimensions of this series are identical to those of the KFM2 series molded case circuit breakers (MCCBs) of the same rating, ensuring good interchangeability during installation.
Compliance Standards
The KFM2E series circuit breakers comply with the following standards:
● IEC 60947-1, GB 14048.1 "Low-voltage switchgear and controlgear - Part 1: General rules"
● IEC 60947-2, GB 14048.2 "Low-voltage switchgear and controlgear - Part 2: Circuit-breakers" and Appendix F "Additional requirements for circuit-breakers with electronic over-current protection"
● IEC 60947-4, GB 14048.4 "Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters"
● IEC 60947-5-1, GB 14048.5 "Low-voltage switchgear and controlgear - Part 5-1: Control circuit devices and switching elements - Electromechanical control circuit devices"
Operating Environment
● Ambient air temperature: -5°C to +40°C, with a 24-hour average not exceeding 35°C; Installation site altitude not exceeding 2000m.
● At a maximum temperature of +40°C, the relative humidity of the air does not exceed 50%. Higher relative humidity is permissible at lower temperatures, e.g., up to 90% at 20°C. Special measures should be taken for occasional condensation due to temperature changes.
● Pollution degree: Level 3; Installation category of the main circuit: III; Installation category of other auxiliary and control circuits: II.
Installation Method
● This series of circuit breakers can be installed vertically or horizontally.
● Reverse power connection is not allowed for this circuit breaker. Terminals 1, 3, 5 must be connected to the power supply lines, and terminals 2, 4, 6 must be connected to the load lines.
Rachel
Industrial Control Sales Specialist: Focuses on delivering high-performance, cost-effective industrial control products. Offers end-to-end one-stop procurement support—covering rapid quotation, streamlined order fulfillment, and responsive after-sales service—to simplify clients’ procurement processes.
Email: Anthony@icxsg.com
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