Chassis / IP20 — Up to 5 HP 33

KB standard off-the-shelf DC Drives provide variable speed for DC motors from sub-fractional to 5 horsepower. They are available in 115 and 208/230 VAC-50/60 Hz with 1Ø input.

A variety of optional accessories are also available to meet the most demanding applications.

*For OEM applications, custom drives are available.

KBIC- SCR Drive- Chassis

The KBIC Series of DC Drives consist of six models rated for 1/100 to 3 horsepower motors.* All models can be used on a wide range of motor horsepower by inserting a Plug-In Horsepower Resistor®**, which is required to operate the drive. Speed range is 50:1 with load regulation of 1% of base speed. These chassis drives include MOV transient protection, trimpot adjustments for MIN, MAX, ACCEL, IR, CL, and a 5k ohm potentiometer. This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.

Options: Auxiliary Heat Sink (P/N 9861), Barrier Terminal Kit (P/N 9863) Barrier Terminal Board (P/N 9884), SI-5 Signal Isolator (P/N 9443), Combination Fuse kit (P/N 9849). AC line and Armature fuse supplied separately.

*An Auxiliary Heat Sink is required when operating motors above ½ HP at 90VDC and 1 HP at 180VDC.

**Plug-In Horsepower Resistor®, AC line fuse and Armature fuse supplied separately.

KBMM- SCR Drive- Chassis

The KBMM Series of DC Drives consist of three models rated for 1/100 to 3 horsepower motors.* This chassis full-wave DC motor control is the ultimate in reliability and performance. The drive contains Direct-Fed™ CL that helps protect the SCR power bridge against shorts due to commutator arcing and prevents motor demagnetization. 25 Amp SCRs and AC line and armature fusing** further enhance reliability. A Plug-in Horsepower Resistor®* is required to operate the drive and eliminates the need for recalibration when used over a wide range of motor horsepower. They include an AC line fuse holder and an Armature fuse holder, MOV transient protection, trimpot adjustments for MIN, MAX, ACCEL, DECEL, IR, CL, and a 5k ohm potentiometer. This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.

Options: Auxiliary Heat Sink (P/N 9861), Barrier Terminal Kit (P/N 9883), Barrier Terminal Board (P/N 9897), Finger Safe Cover (P/N 9564), and SI-6 Signal Isolator (P/N 9444).

*An Auxiliary Heat Sink is required when operating motors above ¾ HP at 90VDC and 1½ HP at 180VDC.

**Plug-In Horsepower Resistor®, AC line fuse and Armature fuse supplied separately.

KBCC SCR Drive – Chassis

The KBCC Series of DC Drives consist of two models rated for 1/100 to 3 horsepower motors. These chassis drives utilize the KBMM speed control to provide a low-cost, reliable SCR drive. Features include an Auxiliary Heat Sink, Barrier Terminal Block, AC line fuse, and an Armature fuse holder. This drive requires a Plug-in Horsepower Resistor®* to operate. The controls are ruggedly constructed and contain a 5k ohm potentiometer. This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.

**Plug-In Horsepower Resistor® and Armature fuse supplied separately.

KBCC-255 SCR Drive – Chassis

The KBCC-255 is designed for 5 horsepower DC Shunt and PM motors. It is built on a rugged aluminum chassis and utilizes the KBMM™ speed control. . The drive contains Direct-Fed™ CL that protects the SCR power bridge against shorts due to commutator arcing and prevents motor demagnetization. The unit contains a 42 Amp power bridge and both armature and control fusing, which enhance reliability. They include an armature or tach feedback, supplied Armature fuse and trimpots for MIN, MAX, IR Comp, CL, Linear ACCEL, DECEL, and a 5k ohm speed potentiometer. This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.

KBCC “R” SCR Drive “Relay Reversing” – Chassis

The KBCC “R” chassis control consists of two models rated for 1/100 to 3 horsepower. It is designed to provide anti-plug “instant” reversing, solid state dynamic braking, and rapid cycling. They combine all of the features of the KBCC™ control with the features of the KB APRM® The APRM® eliminates contact arcing by allowing armature switching to take place only when voltage levels are near zero. Specific functions that can be performed by the KBCC-R™ are Run-Brake, Forward-Brake-Reverse, Run-Stop and Forward-Reverse (instant reverse). This drive requires a Plug-In Horsepower Resistor® to operate and includes an AC Line fuse and an Armature fuse holder.* This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line. A 5k ohm potentiometer is included.

**Plug-In Horsepower Resistor® and Armature fuse supplied separately.

KBCC-240D SCR Drive – Chassis

The KBCC-240D DC drive is rated for 1/100 to 2 horsepower motors. The exclusive Short Circuit and Timed Current Limit (TCL) circuitry prevents motor burnout and demagnetization of PM motors. Included is jumper selectable motor current that eliminates unnecessary calibration the of IR and CL trimpots. Other selectable features are: Input Voltage, Output Voltage, Current Range, Input Signal, Armature or Tachometer Feedback, and Tachometer Voltage. Trimpot adjustments include: MIN, MAX, ACCEL, DECEL, IR, CL and TCL. Standard features include an Armature fuse, Electronic Start-Stop, and diagnostic LED Indicator Array for “power on”, “stop” and “overload.” This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.A 5k ohm potentiometer is included.

KBPB SCR Drive “Relay Reversing” – Chassis

The KBPB Series of DC Drives consist of two models rated for 1/100 to 3 horsepower motors.* These chassis drives are a compact version of the KBCC “R”control. The APRM® eliminates contact arcing by allowing armature switching to take place only when voltage levels are near zero. Built-in terminal blocks and its small size make the control ideal for installation where space is at a premium. The KBPB is equipped with a built-in dynamic brake resistor, ACCEL and DECEL trimpots, and includes a 5k ohm potentiometer This control provides functions identical to that of the KBCC-R. This drive requires a Plug-in Horsepower Resistor® to operate and includes an AC line fuse and an Armature fuse holder.** This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.

Option: Auxiliary Heat Sink (P/N 9861).

*An Auxiliary Heat Sink is required when operating motors above ¾ HP at 90VDC and 1½ HP at 180VDC.

**Plug-In Horsepower Resistor®, AC line fuse and Armature fuse supplied separately.

KBMG SCR Drive “Regen Reversing” – Chassis

The KBMG Series of DC Drives consist of two models rated for 1/100 to 2 horsepower motors. This chassis ultra-compact, full-wave regenerative drive is capable of operating DC PM or Shunt motors in a bidirectional mode. Its 4-quadrant operation provides forward and reverse torque in both speed directions. Jumper selections include: Input AC Line Voltage, Armature Current, Motor Armature Voltage, Analog Input Voltage, Control Mode (Speed or Torque) and Coast to Stop (CTS) or Regenerate to Stop (RTS). The Overspeed Protect Circuit prevents failure of the power bridge in extreme overhauling conditions. Reliability of the KBMG is further enhanced with the use of a high speed current limit circuit and MOV Transient Protection. LEDs, which can be used for diagnostics, are provided for power on and motor overload. Power connections are made via quick connect terminals and signal input connections are made via a removable terminal block. A 5K ohm potentiometer is included. This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.

Option: Auxiliary Heat Sink (P/N 9861), Bipolar Signal Isolator (P/N 8832), Multi-Speed Board (P/N 8833).

*An Auxiliary Heat Sink is required when operating motors above ¾ HP at 90VDC and 1½ HP at 180VDC.

KBRG SCR Drive “Regen Reversing” – Chassis

The KBRG Series of DC Drives consist of three models rated for 1/8 to 5 horsepower DC, Permanent Magnet and Shunt motors. These are full-wave regenerative controls, which allows forward and reverse torque in both speed directions. Features include armature and tachometer feedback, built-in horsepower selection, an AC Line fuse, and an Armature fuse. Trimpots adjustments for Fwd CL, Rev CL, IR Comp, Resp, Max Spd, Offset, Deadband, Fwd Accel, Rev Accel, Timed Current Limit (TCL), and two torque modes. LED indicators for power on, current limit, Fwd Enable, and Rev Enable. A 5K ohm potentiometer is included. This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.

The KBRG-255 is designed specifically for 5 HP shunt wound and PM DC motors. It is similar to the KBRG-225D (3 HP); however, the SCR ratings and heat sink size have been enhanced.

Option: KBRG SI-4X Bipolar Signal Isolator* (P/N 8801).

*All models except the KBRG-212D.

KBWD PWM Drive – Chassis

The KBWD Series of DC Drives provide a low cost solution for pulse-width-modulated (PWM) control applications. Their compact size allows for direct replacement of SCR drives. Features include instantaneous short circuit and under voltage protection. A 5k ohm potentiometer is included.  This drive requires a Plug-in Horsepower Resistor®*, which eliminates the need for IR Comp and CL calibration. If signal isolation is required, please see models KBWS-22D and -25D. This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.

Option: Combination Fuse kit (P/N 9849). (AC line and Armature fuse supplied separately.)

*Plug-In Horsepower Resistor®, supplied separately

KBWT PWM Drive – Chassis

The KBWT series Pulse-Width Modulated (PWM) DC Drives are rated for 1/100 to 2.2 horsepower motors. This chassis drive series consists of five models that are designed for high current applications. Several models are offered, which provide the user a choice of input voltage and output current. An important feature of these chassis drives is its active bridge circuitry, which limits inrush current during AC line startup and prevents control runaway due to a shorted output transistor. The KBWT also contains Timed Current Limit (TCL) which provides motor burnout protection. The drive also contains a Potentiometer Safety Circuit (PSC), which prevents motor rotation unless the signal input is first set to zero when power is applied. Features include an Armature fuse holder.* This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line. An optional Potentiometer Safety Circuit requires the pot to be at zero for start up.

Option: Combination Fuse kit (P/N 9849). (AC line and Armature fuse supplied separately.)

*Armature fuse supplied separately.