What is the breaking capacity of the ECNR250?

The ECNR250 has a breaking capacity of 25 kA (kiloamps) at its rated voltage of 250V, suitable for most industrial distribution applications.

Can the ECNR250 be used for motor protection?

Yes, the ECNR250 with its thermal-magnetic trip unit is designed for both feeder and motor circuit protection in industrial applications.

What mounting standard does this breaker use?

The ECNR250 features bolt-on terminals and a 1-inch (25.4mm) DIN rail mounting width, compatible with standard industrial panel enclosures.

Is the ECNR250 still available and supported?

Yes, the ECNR250 remains in active production by Eaton and is readily available from electrical distributors.

What is the difference between ECNR and other Eaton breaker series?

The ECNR is Eaton's molded case circuit breaker line, offering thermal-magnetic protection for industrial duty. Other series may offer additional features like electronic trip units or different voltage ratings.

Can this breaker be installed vertically or horizontally?

Standard ECNR molded case breakers can be mounted vertically in panels. Consult the installation manual for specific orientation requirements.

What is the trip mechanism response time?

The thermal-magnetic trip unit responds to sustained overloads thermally (several seconds) and to short circuits magnetically (milliseconds).

Is ECNR250 UL listed?

Eaton ECNR breakers are UL-listed and meet standard industrial electrical safety certifications for North American applications.

Eaton

ECNR250

Eaton ECNR250 Molded Case Circuit Breaker 250A 250V

Category Molded Case

MSRP

$146.00

Unit: pcs

PN (normalized): ECNR250

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Specifications

poles	1
current	250A
voltage	250V
trip_type	Thermal-magnetic
form_factor	1 inch
product_class	Molded case circuit breaker
terminal_type	Bolt-on
breaking_capacity	25 kA