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2-6

TBC  OPR 071019

To release the circuit breaker locking plate loosen the two knurled head screws (6-32 x 1/2) and
slide the locking plate to the right (see Figure 2-5A). For models TBC 24-120M and TBC 48-60M
slide the locking plate down (see Figure 2-5B). 

FIGURE 2-5.    CIRCUIT BREAKER LOCKING PLATE

2.7

RACK PANEL MOUNTING

A kit that contains two handles (each one with two ferrule mounts) and two flanges (ears) for
rack mounting is provided with the TBC. Four screws (flat head 10-32 x 1/2, 100 degrees coun-
tersink); six screws (truss head, phillips 10-32 x 3/8, black); and six Internal lockwashers (no.
10) are also included. The mounting flanges (ears) for mounting the TBC in a rack can be
installed in either position 1 or position 2 with three screws (Truss Head Phillips 10-32 x 3/8
Black); and three Internal Locking washers, No. 10 (see Figure 2-5). Position 1 is for regular
front panel rack mounting, and position 2 is for rack mounting with part [5 inches (127)] of the
TBC Battery Charger extended beyond the front of the rack. Install one mounting Ear on each
side of the TBC unit. 

Summary of Contents for TBC 12-50M

Page 1: ...fice in New York 718 461 7000 requesting the correct revision for your par ticular model and serial number 3 The contents of this manual are protected by copyright Reproduction of any part can be made...

Page 2: ......

Page 3: ...eration 3 3 1 1 TBC Series Rack Mount Battery Charger Power Supply ii 1 2 TBC Mechanical Outline Drawing 1 5 2 1 TBC Series Except TBC 24 120M and TBC 48 60M Front Panel Controls and Indicators 2 2 2...

Page 4: ...ii TBC OPR 071019 FIGURE 1 1 TBC SERIES RACK MOUNT BATTERY CHARGER POWER SUPPLY...

Page 5: ...senses that the battery is not absorbing current from the Charger but rather is supplying current back to the TBC This sensor is very sensitive It can respond to a reverse current of less than 50 mil...

Page 6: ...00 240V a c 12 VOLT MODELS TBC 12 20M 12 11 15 22 9 3 7 90 A 1 21 9 5 TBC 12 50M 12 11 15 53 9 3 7 90 A 1 25 11 4 TBC 12 100M 12 11 15 100 18 9 90 A 1 TBC 12 120M 3 12 11 5 15 120 22 11 81 A 1 33 15 2...

Page 7: ...c max Startup Time 900mS max Holdup Time 30mS max EMI FCC Class A Power Factor 0 99 typ 100V a c input rated output Output Characteristics Source Effect typical 0 8 115 15V a c 230 30 V a c Minimum M...

Page 8: ...sensing and logic outputs for status mon itoring The DC output has factory preset voltage and current limit adjustments The TBC has an overvoltage protection circuit that senses the output at the Mon...

Page 9: ...071019 5 FIGURE 1 2 TBC MECHANICAL OUTLINE DRAWING 1 5 1 6 Blank 4 5...

Page 10: ......

Page 11: ...y 3 1 2 digit LCD meter for reading current 4 EQUALIZE TIME timer 0 1 to 99 9 hour timer that can be set to establish the duration of the Equalize cycle 5 START switch Pressing START button starts the...

Page 12: ...BC 24 120M AND TBC 48 60M FRONT PANEL CONTROLS AND INDICATORS b Rear Panel The TBC has two output power terminals for connecting to the battery and or load It also has two terminal blocks TB1 and TB2...

Page 13: ...the TBC A short circuit or logic low between these two terminals will return the TBC to operation Logic high is between 2 4V and 24V d c logic low is between 0V and 0 4V d c When high this terminal ca...

Page 14: ...ay be hazardous Refer to Table 1 2 for input current specifi cations and ensure source power is off and TBC Power ON OFF is set to OFF before proceeding a Remove the four screws from the small panel l...

Page 15: ...is imperative that the chassis of the power supply be returned to AC ground with a separate lead A grounding terminal is pro vided on Terminal Block TB3 for this purpose a Terminal Block TB3 on the C...

Page 16: ...ed with the TBC Four screws flat head 10 32 x 1 2 100 degrees coun tersink six screws truss head phillips 10 32 x 3 8 black and six Internal lockwashers no 10 are also included The mounting flanges ea...

Page 17: ...TBC OPR 071019 2 7 2 8 Blank FIGURE 2 6 RACK MOUNTING...

Page 18: ......

Page 19: ...nt may be located directly at one of the output terminals of the Power Supply which may be connected to ground If Error Sensing is employed DC ground can be established at the remote load In case of a...

Page 20: ...oad wire voltage drops Observe polarities The negative Sensing wire must go to the nega tive load wire and the positive Sensing wire goes to the positive load wire The Remote Sensing terminals must be...

Page 21: ...her terminal 9 on TB1 for all the TBC units in operation see Figure 2 3 NOTE To operate up to three TBC Battery Charger Power Supply units in parallel set the desired output voltages at the load for e...

Page 22: ...3 4 TBC OPR 071019 FIGURE 3 3 SUGGESTED WIRING FOR UP TO THREE TBC UNITS WITH REMOTE SENSING AND REMOTE CONTROL...

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