- page 1 - i.B. 8926-1 table of contents part description page 1 general information 2 2 receiving, handling & storage 4 3 installing control center sections 5 4 installing conduit & wiring 10 5 incoming line connections 12 6 overcurrent protection devices 14 7 overload relay heater selection 16 8 i...
- page 2 - i.B. 8926-1 the motor control center although the cutler hammer freedom 2100 motor con- trol center may be joined to existing five star, series 2100, and advantage installations using the same splice bar kits common to both. Units designed for the free- dom 21 00 can be mounted in five st...
- page 3 - i.B. 8926-1 space for a minimum of three padlocks is provided on each handle. The device panel (6) is mounted on the drawout unit. It will accommodate up to six pilot devices. The overload reset button (20) is mounted on the unit door. Fig. 2 motor control center nomenclature.
- page 4 - i.B. 8926-1 ratings each freedom 2100 motor control center has a rating nameplate attached to the door of the top horizontal wireway of the primary section. See figures 1 and 2. This nameplate shows the general order number under which the motor control center was built and its continu- o...
- page 5 - i.B. 8926-1 fig. 3 correct use of lifting angle rollers rod or pipe rollers, with the aid of pinch bars, provide a simple method of moving the motor control center on one floor level, if there is no significant incline. Roll the motor control center slowly, and steady the load to pre- ven...
- page 6 - i.B. 8926-1 mounted on a level surface. The foundation furnished by the purchaser must be true and level, or the bottom frames must be shimmed to support the entire base in a true plane. It is recom- mended that leveled channel sills under both the front and rear of the control center be ...
- page 7 - i.B. 8926-1 i) run a grounding electrode conduc- tor (ground wire) having a size in ac- cordance with nec 250-94 from the grounding electrode to the mcc ground bus terminal. See nec 250- 91 (a) and 92(b). C) motor control centers not used as service equipment nor as an incoming line secti...
- page 8 - i.B. 8926-1 fig. 5 access to lh splice plate connections joining incompatable sections joining a freedom 21 00 motor control center to the equipment such as type w and 11 -300 control centers will usually involve a transition section, installed between the two varieties of equipment. This...
- page 9 - i.B. 8926-1 type 3r enclosures where the mcc is supplied in a type 3r enclosure for an outdoor application, apply roof splice caps at each shipping block junction to maintain the enclosure integrity. Fig. 9 quadruple bar splice kits fig. 10 six and eight bar splice kits.
- page 10 - i.B. 8926-1 joining freedom 2100 to freedom unitrol of f10 unitrol consult the assembly instructins supplied with every freedom 2100 motor control center set up for splice to freedom unitrol of f10 unitrol. Fig. 11 splice plates attached to freedom 2100 - horizontal bus and ground bus at...
- page 11 - i.B. 8926-1 conduit install conduit in such a manner as to prevent water from entering and accumulating in the conduit or the enclo- sure. Eliminate sags in conduit. Have the conduit enter the motor control center (mcc) in the areas designated for conduit entry on the plan views. See pag...
- page 12 - i.B. 8926-1 accept the blade of an electrician’s screwdriver used to cam the block into and out of engagement. Each male fig. 15 unit terminal blocks portion also has a rear slot that can engage the edge o the unit frame where it can be mounted for ease in trou- ble-shooting. Nema type c...
- page 13 - i.B. 8926-1 overcurrent protection all ungrounded conductors in a motor control center (mcc) installation require some form of overcurrent pro- tection in order to comply with section 240-20 of the nec. Such overcurrent protection for the incoming lines to the mcc is in the form of fuses...
- page 14 - i.B. 8926-1 circuit breaker or the load side of the fuses associated with the circuit interrupter has already been connected to the mcc bus bar distribution system. In the case of main disconnects rated 400 amperes or less, this load connection is made by stab connections to vertical bus...
- page 15 - i.B. 8926-1 device selection articles 240 and 430 of the nec contain the rules for selecting fuses, circuit breakers and overload relays by type and by voltage and ampere rating. Follow these rules for feeder circuits, and the instructions attached to the inside of the left-most vertical...
- page 16 - i.B. 8926-1 current transformers when current transformers are used with overload re- lays, the current through the overload relay heater is re- lated to the motor full-load by the inverse of the current transformer ratio. Warning: do not ever remove heaters from size 5 and larger starte...
- page 17 - i.B. 8926-1 heater selection and installation heaters should be selected on the basis of the actual full load current and service factor as shown on the mo- tor nameplate or in the motor manufacturer’s published literature. When motor and overload relay are in the same ambi- ent and the ...
- page 18 - i.B. 8926-1 fla dial adjustment - for motors having a 1.15 service factor, rotate the fla adjustment dial to corre- spond to the motor’s fla rating. Estimate the dial posi- tion when the motor fla falls between two letter values as shown in the example. For motors having 1.0 service fact...
- page 19 - i.B. 8926-1 nema size 5 heater pack selection table motor fla rating fla dial positions std trip class 20 34 41 48 54 h2003b 49 59 69 79 h2004b 72 87 103 118 h2005b 107 130 152 174 h2006b 129 156 182 209 h2007b 194 234 274 — h2008b a b c d nema size 6 heater pack selection table motor fl...
- page 20 - i.B. 8926-1 1. Before energizing the motor control center (mcc), conduct a thorough inspection to make certain that all foreign materials such as tools, scraps of wire and other debris are removed from all units and the structure. Remove any accumulation of dust and dirt with a vacuum cl...
- page 21 - i.B. 8926-1 door removal and installation all doors on the control center are mounted on pin hinges to facilitate removal for installation and maintenance op- erations. With the operating handle in the off position, rotate the quarter-turn latches, open the door, remove the hinge pins as...
- page 22 - i.B. 8926-1 detent position for maintenance and test purposes, the unit can be par- tially withdrawn (approximately 1 inches) until the stabs are free of the bus. In this position, the quarter-turn latch can be rotated clockwise to engage the detent position slot; this will secure the un...
- page 23 - i.B. 8926-1 caution: brace the panel solidly to avoid breaking the hinge points. Use a knife or small file to remove remaining plastic burrs. Install and wire the new device and re-attach the top of the device panel to the unit. Installing a new unit it is recommended that a new unit be ...
- page 24 - i.B. 8926-1 preventive maintenance preventive maintenance should be a program, a sched- uled periodic action that begins with the installation of the equipment. At that time, specific manufacturer’s in- struction literature should be consulted, then stored for future reference. Follow-up...
- page 25 - i.B. 8926-1 recessed in the handle may be extended and padlocked with from one to three padlocks. See figure 34. With the door open and the disconnect device off, the operating handle is mechanically interlocked to prevent inadvertently being pushed on. To defeat this interlock, the bar ...
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- page 27 - i.B. 8926-1 contact wear and replacement contractors are subject to both mechanical and elec- trical wear during their operation. In most cases mechani- cal wear is insignificant. The erosion of the contacts is due to electrical wear. During arcing, material from each contact is vaporize...
- page 28 - i.B. 8926-1 contact evaluation time of service contact appearance new the new contact has a uniform silver color. Start of service the contact surface will have a blue coloring. The geometric form of the contact is unchanged. The sharp outer corners will be rounded with small silver bead...
- page 29 - i.B. 8926-1 maintenance of motor controllers after a fault ✝ in a motor branch circuit which has been properly in- stalled, coordinated and in service prior to the fault, open- ing of the branch-circuit short-circuit protective device (fuse, circuit breaker, motor short-circuit protector...
- page 30 - i.B. 8926-1 damage, the damaged parts or the entire contactor must be replaced. Overload relays. If burnout of the current element of an overload relay has occurred, the complete overload relay must be replaced. Any indication that an arc has struck and/or any indication of burning of th...
- page 31 - i.B. 8926-1 starter type unit catalog number destination (class) disconnect means: fusiblecircuit circuit breaker breaker with current limiter description full voltage, non-reversing f204 f206 f207 full voltage, reversing f214 f216 f217 reduced voltage, autotransformer type f604 f606 f60...
- page 32 - i.B. 8926-1 part 11 plan views.
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- page 34 - i.B. 8926-1 related instruction leaflets starters: size 5, non-reversing and reversing, vacuum .............................................................. I.L. 17087 size 6, non-reversing and reversing, vacuum .............................................................. I.L. 17089 a...
