ROCKWELLMotor protection circuit breaker

140G-M5H4-D80-AB

Name: 140G-M5H4-D80-AB
Brand: ROCKWELL
SKU: 140G-M5H4-D80-AB

The Allen Bradley 140G-M5H4-D80-AB is a robust molded case circuit breaker, ideal for various industrial applications. It features a 50kA interrupting capacity, electronic LSI protection, and a 4-pole configuration, ensuring reliable and efficient operation in high-current environments.

Product Model140G-M5H4-D80-AB

Product ID107168

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Interrupting CapacityThe 140G-M5H4-D80-AB boasts a 50kA interrupting capacity, making it suitable for applications requiring high short-circuit protection. This ensures the breaker can handle severe electrical surges effectively.
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2. Electronic LSI ProtectionEquipped with electronic LSI (long and short time) protection, this circuit breaker provides both instantaneous and delayed protection against overcurrent conditions. This enhances safety and reliability in industrial settings.
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3. Global Application CompatibilityThe 140G-M5H4-D80-AB is approved for global applications, meeting standards such as UL, CSA, CCC, and IEC. This ensures it can be used in a wide range of environments worldwide.
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4. Customization OptionsThis circuit breaker offers a variety of customization options, including different trip units and accessories. This flexibility allows users to tailor the device to their specific application needs.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Number of poles

Number of auxiliary contacts as change-over contact

With integrated under voltage release

False

Integrated earth fault protection

False

Complete device with protection unit

True

Rated permanent current Iu

800 A

5. Compact DesignDespite its high performance, the 140G-M5H4-D80-AB features a compact design, making it suitable for space-constrained installations. Its dimensions and mounting options ensure easy integration into control panels and other electrical systems.

Type of control element

Toggle

Rated impulse withstand voltage (Uimp)

8 kV

Frame size

800 A

Current range

80% MCCB

Voltage for reverse-fed circuit breaker, max

690V AC per IEC

Protection typeâElectronic I (instantaneous trip units)

I3 = 1200...8400 A

Insulation voltage (Ui)

Rated 1000V per IEC

Electrical life cycle

7000 (600...630 A)/5000 (800 A) @ 415V AC

Protection typeâElectronic L (long time trip units)

I1 = 0.4...1 x In (320...800 A), t1 = 3, 6, 9, 18 s

Protection typeâElectronic S (short time trip units)

I2 = 0.6...10 x In (480...8000 A), t2 = 0.05, 0.1, 0.25, 0.5 s

Operating current (In), max

800A @ 50Â°C (122 ?F) per IEC

Interrupting rating

50kA @ 480V AC, 50/60 Hz per NEMA, UL, CSA

Rated ultimate short-circuit breaking capacity (Icu)

IEC 60947-2: 85kA @ 220...230V AC, 50/60 Hz

Rated service short-circuit breaking capacity (Ics)

IEC 60947-2: 75% Icu @ 750V DC, 3-poles in series, thermal-magnetic trip units only

Protection type

Electronic LSI-long and short time, high instantaneous

Motor drive integrated

False

With switched-off indicator

False

Motor drive optional

True

Position of connection for main current circuit

Front side

Type of electrical connection of main circuit

Screw connection

Suitable for DIN rail (top hat rail) mounting

False

DIN rail (top hat rail) mounting optional

True

Degree of protection (IP)

IP40

Weight

0.999

Mechanical life operations

20000 /h

Vibration

2...13.2 Hz Â±1 mm, 13.2...100 Hz Â±0.7 G

Factory option

1 NO/NC auxiliary + 1 alarm 400V AC

Height

268 mm

Device construction

Built-in device fixed built-in technique

Width

280 mm

Depth

103.5 mm

Storage temperature

-40 Â°F

Wire temperature rating

Al or Cu 75 Â°C

Operational voltage (Ue)

90% of voltage rating @ 3000 m (9840 ft) altitude

Rated uninterrupted current (Iu)

98% of current rating @ 3000 m (9840 ft) altitude

Ambient temperature without derating

104 Â°F

Repairable

NOT_REPAIRABLE

Preferred Availability

false

Quick Turnaround

false

Dimension Height

0.0

Lead Time

Dimension Width

0.0

Dimension Length

0.0

Stock Status

NON_STOCKED