Made in Japan
Manufacturer: Satuma
Model: BRP2

The BRP2 type AC-operated DC electromagnetic brake is a compact disc-type electromagnetic brake that is compatible with braking of motors with regenerative braking control such as inverters

Features

• A low-noise air damper with a small shock is standard equipment.
• An automatic adjustment system is used to adjust the upper and lower gaps of the brake lining.
  Maintenance and inspection can be simplified.
• Lubrication-free bushings are used for the main pins.
  Oil-free use is possible in general indoor environments.
• Sintered alloy is used for the brake lining material. It
  exhibits stable braking force up to high temperatures without fading.
• The brake (lining) has a symmetrical structure and
  can be mounted on either side of the disc rotor.
  (However, install the terminal box on the opposite side.)

1.Rating

*Table 1

Brake type	BRP2 type AC operated DC electromagnetic brake
Actuation method	Non-excitation operation (instantaneous strong excitation type)
Application	Hoisting and traveling of cranes, industrial machinery (applied to motors with regenerative braking such as inverters)
Ambient temperature	-10°C to +40°C
Operating part protective structure	Dust-proof type (main body is unprotected type)
Operation part insulation type	Class B insulation
Rated voltage and rated frequency	200V-50Hz, 220V-60Hz, 400V-50Hz, 440V-60Hz
Operation part usage rate	60%
Number of operations of operation part	400 times/hour
Paint color	Munsell 5B5/0.5

2.Specifications

*Table 2

Brake type	Electromagnet Type	Control box Type	Braking torque (N • m)	Disk rotor diameter (mm）	Maximum emergency braking workload (kJ)		Maximum emergency braking rotational speed (min–1) Note 1
					30 m/s or less	80m/s
BRP2- 180-1	MD15D	BRD-SC	150 ～ 240	Φ 350	568	343	4300
			175 ～ 280	Φ400	764	461	3800
BRP2-180			270-395	Φ350	568	343	4300
			310 – 460	Φ400	764	461	3800
BAP2- 225- 1	MD17D	BRD-SC	410～ 610	Φ400	764	461	3800
			475～ 700	Φ450	941	568	3300
			540 ～ 790	Φ500	1130	676	3000
BRP2 · 225			625～ 885	Φ400	764	461	3800
			720 ～ 1020	Φ450	941	568	3300
			810 ～ 1150	Φ500	1130	676	3000
BRP2-280-1	MD24D	BRD-SC	920～ 1380	Φ450	941	568	3300
			1050 ～ 1580	Φ500	tt 30	676	3000
			1310～ 1970	Φ600	1680	1010	2500
			1580 ～ 2370	Φ700	2190	1310	2150
BRP2·280			1410 ～ 1930	Φ450	941	568	3300
			1610～ 2200	Φ500	1130	676	3000
			2010～ 2750	Φ600	1680	1010	2500
			2410～ 3300	Φ700	2190	1310	2150
BRP2-355-1	MD29D	BRD-SC	2230 ～ 3240	Φ600	1680	1010	2500
			2700～ 3920	Φ700	2190	1310	2150
			3170-～ 4590	Φ800	2960	1770	1900
BRP2-355	MD31D	BAD-LC	3610～ 5700	Φ600	1680	1010	2500
			4360-～ 6890	Φ700	2190	1310	2150
			5120～ 8080	Φ800	2960	1770	1900

Note 1: Keep the normal braking rotational speed at approximately 1/10 of the maximum emergency braking rotational speed.

3. External dimensions

*Table 3 : External brake dimensions (mm)

Brake type	Brake main body (mm)
	FATHER	BB	BC	BG	BH	BP	BK	BQ	BEIGE	BF	BM	BN	BS	BZ	BT	KO	Weight (kg)
BRP2-180-1 BRP2-180	122 *145	292	180	13	563	350	213	481	60	115	150	260	11	15	125	28	55
BRP2-225-1 BRP2-225	138 *160	328	225	14	699	465	234	612	70	135	185	320	0	24	135	28	85
BRP2-280-1 BRP2-280	170 *185	341	280	22	863	557	306	745	75	160	200	370	8	28	150	28	175
BRP2-355-1	213 *234	394	355	22	1076	714	362	935	100	210	270	490	0	35	194	34	330
BRP2-355	213 *234	454	355	22	1086	704	382	935	100	210	270	490	0	35	194	34	375

*Dimensions marked with an asterisk (*) are those obtained when the brake lining has been worn, decreasing to the thickness limit.

*Table 4 : External disk rotor dimensions (mm)

Brake Type	Disk rotor diameter	Effective radius	Disk rotor(standard)			Coupling-type disk rotor
	ΦDD	DE	DL	J(kg・㎡）	Mass(kg）	DL	Cl	J(kg・㎡）	Transmitted torque(N・m）	Mass(kg)
BRP2-180-1 BRP2-180	350	145	150	0.34	33	150	300	0.41	380	26/15
	400	170		0.58	40			0.65	430	34/20
BRP2-225-1 BRP2-225	400	165	170	0.58	42	170	335	–	–	–
	450	190		0.95	53			1.17	1100	49/41
	500	215		1.43	sixty seven			1.60	1450/1490	58/45
BRP2-280-1 BRP2-280	450	175	200	0.95	57	200	350	–	–	–
	500	200		1.43	72			–	–	–
	600	250		3.00	103			3.25	2800	89176
	700	300		5.50	141			5.85	3400	115/85
BRP2-355-1	600	240	240	3.00	104	240	400	–	–	–
	700	290		5.50	163			5.93	4500	123/108
	800	340		9.00	189			9.75	6800	171/165
BRP2-355	600	240	240	3.00	104	240	465	–	–	–
	700	290		5.50	163			5.93	4500	123/108
	800	340		9.00	189			9.75	6800	171/165

4. Selection

5. Installation site for the brake and disk rotor

Install a disk rotor on the direct-coupling side if the motor is of the bilateral-shaft type. (The disk rotor cannot be installed on the side of a self-cooling fan, in principle.

6. Face deflection of the disk rotor

Limit the face deflection of the disk rotor to 0.07 mm or less.

General expressions used for brake calculations

When ordering and making an inquiry Please inform us of the following:

１．Application: Crane type, classification (hoisting, traversing, and traveling), usage rate, Rating of operations (cycle/ hour), moment of inertia of the load
2．Operation environment: Indoor/outdoor use, ambient temperature
3．Brake type and Disk rotor diameter
4．Motor rating: Output/load hour rate, voltage, frequency (availability of inverter control regenerative braking)
5．Braking torque
6．Operation power supply: voltage, frequency
7．Spare parts