4RK 80mm 25W

AC Brake Motor

Motor Type: 4RK

Power: 25W

Voltage: 110-380V

Gearbox Ratio: 3-200K

Motor Parameter Table

Model ·Type Lead Wire Type		Rating	Output Power W	Voltage V	Frequeny Hz	Current A	Starting Torque mN.m	Rated Torque mN.m	Rated Speed r/min	Capacitor μF
Pinion Shaft	Round Shaft
4RK25GN-AM	4RK25A-AM	30min	25	1ph 100	50	0.	160	200	1250	10.0
					60	590.	140	165	1550
4RK25GN-EM	4RK25A-EM	30min	25	1ph 110	60	690.	140	165	1550	8.0
				1ph 120		450.
4RK25GN-CM	4RK25A-CM	30min	25	1ph 220	50	500.	140	200	1250	2.2
				1ph 230		290.	160
4RK25GN-HM	4RK25A-HM	30min	25	1ph 220	60	30 0.35	140	165	1550	2.2
				1ph 230
4RK25GN-SM	4RK25A-SM	30min	25	3ph 220	50	0.185	350	200	1250	-
					60	0.170	250	165	1550
4RK25GN-S3M	4RK25A-S3M	30min	25	3ph 380	50	0.107	350	200	1250	-
					60	0.098	250	165	1550

Allowance Torque

Type Motor/Gearhead	Gear Ratio		3	3.6	5	6	7.5	9	10	12.5	15	18	20	25	30	36	40	50	60	75	90	100	120	150	180	200
	Speed r/min	50Hz	500	417	300	250	200	166	150	120	100	83	75	60	50	41	37	30	25	20	16	15	12.5	10	8.3	7.5
	Speed r/min	60Hz	600	500	360	300	240	200	180	144	120	100	90	72	60	50	45	36	30	24	20	18	15	12	10	9
4RK25GN-AM 4RK25GN-EM 4RK25GN-CM 4RK25GN-HM 4RK25GN-SM 4RK25GN-S3M	4GN□K	50Hz	0.49	0.58	0.81	0.97	1.20	1.50	1.55	2.00	2.40	2.90	3.17	3.70	4.40	5.30	5.57	6.60	7.90	8.00	8.00	8.00	8.00	8.00	8.00	8.00
		50Hz	5.00	5.91	8.26	9.89	12.2	15.3	15.8	20.4	24.4	29.6	32.3	37.7	44.9	54.1	56.8	67.3	80.0	80.0	80.0	80.0	80.0	80.0	80.0	80.0
		60Hz	0.40	0.48	0.67	0.80	10.0	1.20	1.25	1.70	2.00	2.40	2.64	3.00	3.60	4.30	4.49	5.40	6.50	8.00	8.00	8.00	8.00	8.00	8.00	8.00
		60Hz	4.08	4.89	6.83	8.16	10.2	12.2	12.8	17.3	20.4	24.4	26.9	30.6	36.7	43.8	45.8	55.1	66.3	80.0	80.0	80.0	80.0	80.0	80.0	80.0

Lead Wiring Type

Description

The compact AC brake motor is a drive product specifically designed for industrial automation equipment where installation space is limited, but high output capacity and reliable braking are still required. This model utilizes a 4RK motor structure, integrating and optimizing the stator, rotor, and braking unit in its structural layout to achieve higher power density within a limited volume. With a rated power of 25W, the motor provides stable and continuous power output while maintaining a compact form factor, making it suitable for applications requiring both driving and braking functions in confined spaces.
This compact AC brake motor supports a wide voltage input range of 110V–380V, allowing for flexible application in automation systems with different power supply conditions, simplifying electrical design and enhancing equipment versatility. The built-in braking unit activates quickly upon power loss or shutdown, generating reliable braking torque to ensure the load remains stable in a stopped state, effectively preventing unexpected displacement caused by inertia or gravity, and improving safety and positioning reliability during equipment operation.
This product can be matched with a reduction ratio range of 3–200K, allowing for flexible balancing between speed and torque according to actual working conditions. Even in space-constrained structures, a high output torque and smooth operation can be achieved through reasonable reduction ratio configuration. The reduction mechanism is highly integrated with the motor body, helping to reduce the overall transmission length and mechanical clearance, which positively contributes to improved repeatability and system response consistency.