80 Series End Mount Diract 4 Post NEMA 4 with hub seal, Mark II Release

NEMA Frame Sizes 282TC/UC and 286TC/UC
Torque Ratings: 25 to 175 lb-ft
Base Models: 81025-65, 81035-65, 82050-65, 82070-65, 83075-65, 83105-65, 84125-65, 85175-65

Enclosure Type:

Waterproof/Dust-tight Enclosure: NEMA 4, CSA 4, IP56
Cast iron enclosure
Red oxide primer paint

Specifications:

Reaction Time: 20-25 milliseconds (release and set)
AK: 10.50” Register
AJ: 9.00” Bolt Circle
Maximum RPM: 2400
CSA File: #LR13814
Coil insulation: Class H standard
Lead wires: external conduit and internal connections
Nameplate: Engraved stainless steel
Manual: BK4819

Design Features:

Brake Model Number Definition

Voltages:

Standard AC Voltages (single and three phase)

Suffix | Voltage
Y1 | 110/220V, 50Hz (single phase only)
11 | 115/208-230V, 60Hz (single phase only)
R1 | 115/230V, 60Hz (single phase only)
T1 or T3 | 220/440V, 60Hz
51 or 53 | 208-230/460V, 60Hz
U1 or U3 | 230/460V, 60Hz or 190/380V, 50Hz
P1 or P3 | 575V, 60Hz

Special Voltages Available

Standard Hub Bore Sizes:

Suffix | Size | Keyway
H | 1-1/8″ | 1/4″ x 1/8″
K | 1-3/8″ | 5/16″ x 5/32″
M | 1-5/8″ | 3/8″ x 3/16″
N | 1-7/8″ | 1/2″ x 1/4″

Special Bore Sizes Available

Available Options:

Suffix | Description
A | Adapter to Next larger Frame Size
AB | Reverse Adapter
B | Aluminum Bronze Stationary Disc(s)
E | Ductile Iron Stationary Disc(s)
F | Foot Mounting Bracket
H | Heavy Duty Friction Disc(s)
J | High Tensile Studs
M | Military Marine Finish
N | Non-Military (Maritime) Marine Finish
P | Tropical Protection
R | Internal Space Heater
S | Stainless Steel Stationary Disc(s)
V | All Position Vertical Mounting
VO | Vertical Over Motor Mounting
VU | Vertical Under Motor Mounting
XS | Microswitch Warning

Downloads, Instructions & Parts Lists

Model 80000-65; 4 Post, NEMA 4 (BK4819)

Torque (lb-ft)	Model #	Weight (lbs)	Thermal Capacity (HPS/Min)	Inertia (lb-ft2)	"C"	"N"	"X"	"Xb"	"AC"
25	81025-65	57	15	0.084	6.00	1.75	1.31	1.00	1.73
35	81035-65	57	15	0.084	6.00	1.75	1.31	1.00	1.73
50	82050-65	65	17	0.158	6.62	2.25	1.81	1.50	2.35
70	82070-65	65	17	0.158	6.62	2.25	1.81	1.50	2.35
75	83075-65	70	19	0.233	7.25	2.75	2.31	2.00	2.98
105	83105-65	70	19	0.233	7.25	2.75	2.31	2.00	2.98
125	84125-65	75	21	0.307	7.87	3.25	2.81	2.50	3.60
175	85175-65	81	21	0.384	8.50	3.87	3.44	3.12	4.23