Spring Applied Power-Off Operation Power-Off Operation Inertia Dynamics AC-style, spring applied motor brakes are designed to decelerate or park inertial loads when the voltage is turned off, either intentionally or accidentally, as in the case of power failure. The friction disc with the hub is coupled to the motor shaft to be braked but is capable of moving axially. When power is off, a spring force clamps the friction disc between a pressure plate and a stationary plate, hence retarding motion. When an AC voltage is applied, the solenoid creates a magnetic force which pulls a lever arm through a linkage mechanism and releases the friction disc. This allows the hub and motor shaft to turn freely. Application The motor brakes are commonly used as parking brakes to hold a load in place or as stopping brakes to dynamically decelerate a load. Applications include: Material Handling Food Processing Machine Tools Features External Lever Totally Enclosed Construction Torque adjustable from full rated torque down to 50% Single phase AC coils provide fast engagement and release times and easy wiring Mounting Two styles are available: the single C-Face brake and the double C-Face brake. The single C-Face mounts on the fan end or non-driven end of a motor. The C-Face brake is interchangeable with existing brakes and can be used on motors that are modified to accept a brake. The double C-Face brake can be used as a coupler between standard C-Face motors and C-Face gear reducers. All motor brakes are interchangeable with competitive motor brakes. AC Motor s Add-On s General Information A complete kit is available to convert a standard Reliance Electric TEFC motor to a brake motor. The frame size must be 5 or 40. The kit is not available for special enclosures such as washdown or explosion proof. Motor Coil Current BRAKE VOLTS (VAC) HZ (AMPS) HOLDING INRUSH 5/0.54/.7 4.8/.4 00/400./.5.8/.4 08/4 0./../. 0/40.7/../. 87/575./../.05 04/08.5/.5 5./.5 5/0.5/.5 5.4/.7 90/80 50./..0/.5 0/440./.5./.5 0/40./..7/. Selection Procedure. To make an accurate brake selection, first determine the motor frame size, shaft size, hp, and RPM where the brake will be mounted.. Use chart on the right for static brake torque selection. Note that chart selections are based on a.4 service factor and increased to the next highest standard brake torque rating. To select a brake using a different service factor, use the formula below to determine the required brake static torque. Once your torque requirement has been determined, select a brake with at least that capacity.. Consult Part Number chart on the following pages for appropriate part number. voltage should be matched with motor voltage rating. Static Torque Ratings* (Lb.- Ft.) Selection MOTOR SPEED (RPM) HP 750 900 00 500 800 000 00 /4 / / /4 0 0 0 0 0 / 5 5 0 0 0 5 0 0 5 5 0 0 5 5 5 * Selections based on.4 service factor and increased to next highest standard brake torque rating. T = HP x 55 x SF RPM T = Static Torque (FT. LBS.) HP = Motor Horsepower SF = Service Factor Desired RPM = Motor Speed P-7874-IDI 5/8... www.idicb.com 4
AC Motor s - Nema Housing.44 5 o () /8 - x Long.85 5,000 & 5,00 Nema Housing 5,00 Nema Housing Aluminum Head Steel 4.50 4.5.5.75 to Lead Outlet Ft-Lb 5 Ft-Lb.94 Required to Remove / - 4 NPT.4. 5/8, /4, & 7/8 ().8 Lead Holes 80 o apart on a.8 () Mounting Holes.9 to Pivot Point.5. Average Ship Wt = 9Lbs 5/0, 0HZ F5A0 F5A0 F5A07 F5A08 0/40, 0 HZ F5A04 F5A04 F5A074 F5A084 87/575, 0 HZ F5A05 F5A05 F5A075 F5A085 5/0, 50HZ F5A08 F5A08 F5A078 F5A088 0/40, 50 HZ F5A09 F5A09 F5A079 F5A089 /4 BORE HUB 5/0, 0HZ F5B0 F5B0 F5B07 F5B08 0/40, 0 HZ F5B04 F5B04 F5B074 F5B084 87/575, 0 HZ F5B05 F5B05 F5B075 F5B085 5/0, 50HZ F5B08 F5B08 F5B078 F5B088 0/40, 50 HZ F5B09 F5B09 F5B079 F5B089 5/0, 0HZ F5C0 F5C0 F5C07 F5C08 0/40, 0 HZ F5C04 F5C04 F5C074 F5C084 87/575, 0 HZ F5C05 F5C05 F5C075 F5C085 5/0, 50HZ F5C08 F5C08 F5C078 F5C088 0/40, 50 HZ F5C09 F5C09 F5C079 F5C089 0 HZ BRAKE COILS SINGLE PHASE 50HZ BRAKE COILS SINGLE PHASE 5/0.50/.5./.8 5/0.45/..7/.4 0/40.8/.4.94/.97 0/40.4/..7/.88 87/575./..54/.77 0 5 5 www.idicb.com P-7874-IDI 5/8
AC Motor s - Nema Housing 5,400 Nema Housing Cast Iron Head Steel Ft-Lb 5 Ft-Lb.44 () /8 - x Long 5 o.85 4.50 4.74.95.85.0 to.94 Required to Remove / - 4 NPT 5/8, /4, & 7/8 Optional - ().48 Lead Holes 80 o apart on a.8 () Mounting Holes.8.7 to Pivot Point.5.5. Average Ship Wt = Lbs 5/0, 0HZ F5A7 F5A7 F5A77 F5A78 0/40, 0 HZ F5A74 F5A74 F5A774 F5A784 87/575, 0 HZ F5A75 F5A75 F5A775 F5A785 5/0, 50HZ F5A78 F5A78 F5A778 F5A788 0/40, 50 HZ F5A79 F5A79 F5A779 F5A789 /4 BORE HUB 5/0, 0HZ F5B7 F5B7 F5B77 F5B78 0/40, 0 HZ F5B74 F5B74 F5B774 F5B784 87/575, 0 HZ F5B75 F5B75 F5B775 F5B785 5/0, 50HZ F5B78 F5B78 F5B778 F5B788 0/40, 50 HZ F5B79 F5B79 F5B779 F5B789 5/0, 0HZ F5C7 F5C7 F5C77 F5C78 0/40, 0 HZ F5C74 F5C74 F5C774 F5C784 87/575, 0 HZ F5C75 F5C75 F5C775 F5C785 5/0, 50HZ F5C78 F5C78 F5C778 F5C788 0/40, 50 HZ F5C79 F5C79 F5C779 F5C789 0 HZ BRAKE COILS SINGLE PHASE 50HZ BRAKE COILS SINGLE PHASE 5/0.50/.5./.8 5/0.45/..7/.4 0/40.8/.4.94/.97 0/40.4/..7/.88 87/575./..54/.77 0 5 P-7874-IDI 5/8... www.idicb.com
AC Motor s - Nema 4 Housing.44 5,00 Nema 4 Housing Cast Iron Head Cast Iron Includes O-Ring Seals to create a dust-tight brake enclosure () /8 - x Long 5 o.85 4.50 5..95.85.0 to.0 Required to Remove Ft-Lb 5 Ft-Lb / - 4 NPT 5/8, /4, & 7/8 Optional - ().48 Lead Holes 80 o apart on a.8 () Mounting Holes.8.7 to Pivot Point.5.5.94 Average Ship Wt = 9Lbs 5/0, 0HZ F5A F5A F5A7 F5A8 0/40, 0 HZ F5A4 F5A4 F5A74 F5A84 87/575, 0 HZ F5A5 F5A5 F5A75 F5A85 5/0, 50HZ F5A8 F5A8 F5A78 F5A88 0/40, 50 HZ F5A9 F5A9 F5A79 F5A89 /4 BORE HUB 5/0, 0HZ F5B F5B F5B7 F5B8 0/40, 0 HZ F5B4 F5B4 F5B74 F5B84 87/575, 0 HZ F5B5 F5B5 F5B75 F5B85 5/0, 50HZ F5B8 F5B8 F5B78 F5B88 0/40, 50 HZ F5B9 F5B9 F5B79 F5B89 5/0, 0HZ F5C F5C F5C7 F5C8 0/40, 0 HZ F5C4 F5C4 F5C74 F5C84 87/575, 0 HZ F5C5 F5C5 F5C75 F5C85 5/0, 50HZ F5C8 F5C8 F5C78 F5C88 0/40, 50 HZ F5C9 F5C9 F5C79 F5C89 0 HZ BRAKE COILS SINGLE PHASE 50HZ BRAKE COILS SINGLE PHASE 5/0.50/.5./.8 5/0.45/..7/.4 0/40.8/.4.94/.97 0/40.4/..7/.88 87/575./..54/.77 0 5 7 www.idicb.com P-7874-IDI 5/8
AC Motor s - Nema Housing 5,000 Nema Housing Cast Iron Head Cast Iron Ft-Lb 5 Ft-Lb.44.85 () /8 - x Long 5 o 4.50 5..95.85.0 to.0 Required to Remove / - 4 NPT 5/8, /4, & 7/8 Optional - ().48 Lead Holes 80 o apart on a.8 () Mounting Holes.8.7 to Pivot Point.5.5.94 Average Ship Wt = 9Lbs 5/0, 0HZ F5A8 F5A8 F5A87 F5A88 0/40, 0 HZ F5A84 F5A84 F5A874 F5A884 87/575, 0 HZ F5A85 F5A85 F5A875 F5A885 5/0, 50HZ F5A88 F5A88 F5A878 F5A888 0/40, 50 HZ F5A89 F5A89 F5A879 F5A889 /4 BORE HUB 5/0, 0HZ F5B8 F5B8 F5B87 F5B88 0/40, 0 HZ F5B84 F5B84 F5B874 F5B884 87/575, 0 HZ F5B85 F5B85 F5B875 F5B885 5/0, 50HZ F5B88 F5B88 F5B878 F5B888 0/40, 50 HZ F5B89 F5B89 F5B879 F5B889 5/0, 0HZ F5C8 F5C8 F5C87 F5C88 0/40, 0 HZ F5C84 F5C84 F5C874 F5C884 87/575, 0 HZ F5C85 F5C85 F5C875 F5C885 5/0, 50HZ F5C88 F5C88 F5C878 F5C888 0/40, 50 HZ F5C89 F5C89 F5C879 F5C889 0 HZ BRAKE COILS SINGLE PHASE 50HZ BRAKE COILS SINGLE PHASE 5/0.50/.5./.8 5/0.45/..7/.4 0/40.8/.4.94/.97 0/40.4/..7/.88 87/575./..54/.77 0 5 P-7874-IDI 5/8... www.idicb.com 8
Coupler s AC C-Face Coupler s - Nema Housing AC C-FACE COUPLER BRAKES Nema Housing C-Face 5 C and 45TC Aluminum Head Aluminum M Series Ft-Lb C-Face Mounted Two External Lead Holes / NPT.88 Required to Remove Assembly.00. 7.44.44.75.5.84 45 /8- Tap x.5 Deep on a 5.875 B.C..94 4.500 4.497 Output Shaft with / Square Key x.5 Long 7.88 4.50 5.875 B.C. Input with / Square Key 4 Holes.4 Average Ship Wt =.5Lbs 5C - 5/8 BORE SHAFT AND HUB BRAKES BRAKES 0 BRAKES 5/0, 0HZ M5A0 M5A0 M5A07 0/40, 0 HZ M5A04 M5A04 M5A074 87/575, 0 HZ M5A05 M5A05 M5A075 5/0, 50HZ M5A08 M5A08 M5A078 0/40, 50 HZ M5A09 M5A09 M5A079 45TC - 7/8 BORE SHAFT AND HUB BRAKES BRAKES 0 BRAKES 5/0, 0HZ M5C0 M5C0 M5C07 0/40, 0 HZ M5C04 M5C04 M5C074 87/575, 0 HZ M5C05 M5C05 M5C075 5/0, 50HZ M5C08 M5C08 M5C078 0/40, 50 HZ M5C09 M5C09 M5C079 0 HZ BRAKE COILS SINGLE PHASE 50HZ BRAKE COILS SINGLE PHASE 5/0.50/.5./.8 5/0.45/..7/.4 0/40.8/.4.94/.97 0/40.4/..7/.88 87/575./..54/.77 0 Must be direct-coupled; mounted between motor and speed reducer. Not recommended for belted or other overhung load applications. 9 www.idicb.com P-7874-IDI 5/8
Coupler s DC C-Face Coupler s - Nema Housing DC C-FACE COUPLER BRAKES Nema Housing DC Power Off C-Face 5 C and 45TC Aluminum Head Aluminum M Series Ft-Lb C-Face Mounted Two External Lead Holes / NPT.88 Required to Remove Assembly.00. 7.44.44.75.5.84 45 4.500 4.497 7.88 4.50 4 Holes.4 /8- Tap x.5 Deep on a 5.875 B.C..94 Output Shaft with / Square Key x.5 Long 5.875 B.C. Input with / Square Key Average Ship Wt =.5Lbs 5C - 5/8 BORE SHAFT AND HUB BRAKES BRAKES 0 BRAKES 4 VDC M5A0Y M5A0Y M5A07Y 90 VDC M5A0X M5A0X M5A07X 45TC - 7/8 BORE SHAFT AND HUB BRAKES BRAKES 0 BRAKES 4 VDC M5C0Y M5C0Y M5C07Y 90 VDC M5C0X M5C0X M5C07X DC BRAKE COILS AMPS RESISTANCE OHMS 4 VDC.9.4 90 VDC.5 5 0 Must be direct-coupled; mounted between motor and speed reducer. Not recommended for belted or other overhung load applications. P-7874-IDI 5/8... www.idicb.com 70