ROCKWELLMotor protection circuit breaker

140G-M5K3-D60-SD-AA

Name: 140G-M5K3-D60-SD-AA
Brand: ROCKWELL
SKU: 140G-M5K3-D60-SD-AA

The Allen Bradley 140G-M5K3-D60-SD-AA is a high-performance molded case circuit breaker with an 800A rating, 50kA interrupting capacity, and IP40 protection. Ideal for industrial applications.

Product Model140G-M5K3-D60-SD-AA

Product ID105707

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
Feature1. High Interrupting Capacity The 140G-M5K3-D60-SD-AA boasts an impressive 50kA interrupting capacity at 480V AC, ensuring reliable operation in high-current applications.
2
Feature2. Durable Construction Built with a robust M-frame design, this circuit breaker can withstand harsh industrial environments and maintain its performance over time.
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Feature3. Enhanced Protection Equipped with IP40 protection, the 140G-M5K3-D60-SD-AA provides a high level of protection against dust and water, ensuring safe operation in various conditions.
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Feature4. Versatile Mounting Options Although not suitable for DIN rail mounting, the device offers optional DIN rail mounting, providing flexibility in installation.

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

True

Complete device with protection unit

True

Rated permanent current Iu

600 A

Feature5. Long Operational Life Designed for high mechanical life operations, the 140G-M5K3-D60-SD-AA can handle up to 20,000 hours of operation, making it a reliable choice for long-term use.

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

Maintenance mode offers at instantaneous preset set of protection parameters

I3 = 4 x In = 2400 A

Maintenance mode offers a preset set of protection parameters

I5 = 2.5 x In = 1500 A

Protection typeâElectronic I (instantaneous trip units)

I3 = 900...7200 A

Insulation voltage (Ui)

Rated 1000V per IEC

Maintenance mode offers at long time preset set of protection parameters

I1 = 1 x In = 600 A, t1 max. = 18 s

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 (240...600 A), t1 = 3, 6, 12, 18 s

Protection typeâElectronic G (ground fault-maintenance mode trip units)

I4 = 0.2...1 x In (120...600 A), t4 = 0.1, 0.2, 0.4, 0.8 s

Protection typeâElectronic S (short time trip units)

I2 = 0.6...10 x In (360...6000 A), t2 = 0.05, 0.1, 0.25, 0.5 s

Operating current (In), max

600A @ 40Â°C (104 Â°F) per UL

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 LSIG-long and short time, high instantaneous, ground fault, maintenance 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

Shunt-trip, 110...127V AC @ 110...125V DC

Height

268 mm

Device construction

Built-in device fixed built-in technique

Width

210 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

Weight Unit

Dimension Unit