5.5 hp (4kW) Brake Motor, 3 Phase, 2/4 Pole

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$1,422.15

3 phase brake motor with rated voltage 380V (380V~480V can be customized), 2 pole/ 4 pole can be chosen, 0.87 cosφ/ 0.82 cosφ power factor. Electric brake motor is widely used in shipbuilding, industrial, fire fighting, chemical industry, energy, mining gold, environmental protection and national defense construction.

Number of Poles *

SKU: ATO-BM-112M

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Delivery date: 10-12 days

Overview
Related Video

Lower cost electromagnetic brake motor with rated power 4000 watt, 2880r/ min/ 1410r/ min speed, static braking torque 40Nm, 90W energizing power and 84% high efficiency.

Specification

Model	ATO-BM-112M-2	ATO-BM-112M-4
Rated power	5.5hp (4kW)
Rated voltage	380V (380V~480V can be customized)
Numbers of poles	2 pole	4 pole
Rated torque	13.3 N.m	26.7 N.m
Speed	2880r/ min	1410r/ min
Power factor	0.87 cosφ	0.82cosφ
Weight	72kg	86kg
Efficiency	84%
Static braking torque	40Nm
No-load brake lag time	0.25s
Energizing power	90W
Locked-rotor current/ rated current	7 Ist/ In
Locked-rotor torque/ rated torque	2.2 Tst/ Tn
Maximum torque/ rated torque	2.3 Tmax/ Tn
Certificate	CE
Warranty	12 months

Dimension

Frame size	Mounting dimensions (mm)									Overall dimensions (mm)
Frame size	A	B	C	D	E	F	G	H	K	AB	AC	AD	HD	L
112M	190	140	70	28	60	8	24	112	12	245	240	190	265	510

Details

4000W Brake Motor Details

Tips: Simple CalculationPrinciple for Select Brake Motor.

The choice of brake model depends to a large extent on the required braking torque. In addition, factors such as braking moment of inertia, relative speed, braking time, and operating frequency should also be considered. The following are the styling rules recommended by a certain brake manufacturer. Different manufacturers will have some differences, but the principles are similar.
Calculate the required braking torque: T=K×9550×P/n
Among them:
T——Required braking torque (N.m)
P——Transmission power (kW)
n——Relative speed when the brake is applied (r/min)
K safety factor (take K>2)

VFD Two-Wire Control Wiring with Push Button for Forward Motor

In this video we've guided you through how to do VFD control wiring with a self-lock push button switch to run the motor in forward direction. We've covered everything from wiring to programming and even a test run. So just watch it through and hope you'll find it informative and helpful.

3-phase motor reverse connection

In this video, we have 120V/220V/240/380V/415V AC motors with power from 1hp~100hp, widely used to drive various industrial machines such as fans, pumps, machine tools.

Existing reviews of 5.5 hp (4kW) Brake Motor, 3 Phase, 2/4 Pole

Fast response 5.5hp Brake Motor

Our team replaced an older unit with the 5.5 hp Brake Motor, and the difference was night and day. Acceleration is smoother, brake response is faster, and efficiency has gone up. Installation was straightforward thanks to the clear wiring diagram provided.

From: Lucian | Date: 10/08/2025

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