circuit breaker specifications pdf

��5孆\�Tn_��*Ej��:� It is less than 60 ms for 145KV, less than 50 ms for 420 KV circuit breaker. 3072 0 obj <> endobj 120/240V, 240V THQB/THHQB Bolt-On Breakers. 0.77. 123 0 obj << /Linearized 1 /O 125 /H [ 1467 941 ] /L 201516 /E 44063 /N 24 /T 198937 >> endobj xref 123 52 0000000016 00000 n �Z�� uO� Circuit Breaker Product Overview6-7 Organizational Capabilities Arc Fault Circuit Interrupt (AFCI) Technology Notes Single Phase, Thermal Circuit Breakers Series 160 - 50 to 100A12-13 Series 170 - 125 to 200A Series 700 - 5 to 50A Series 1500 - ½ to 10A Series 4001 - 1 to 25A20-21 Series 4200 - 1 to 25A22-23 Series 4310 - 1 to 25A Three Phase, Thermal Circuit Breakers Series 940 - 50 to 100A … 0000030194 00000 n 0000142425 00000 n GB14048.2 Low-voltage switchgear and controlgear Part 2: Circuit breaker. The circuit breaker shall be rated at one or more of the following maximum voltages: 635 V, 508 V, or 254 V. Certifiactions CE; cULus listed Circuit Breaker, File No. 30,000 A nominal current with natural cooling and up to 40,000 A nominal current with IPB forced air cooling. 787-2861-800-000 $57.00 1 8A (Fixed Setting) PDF 787-2861-108-020 $68.00 1 1 – 8A (Adjustable) PDF Single Channel Electronic Circuit Breaker Selection Chart: Accessories Part Number Price Description Quantity Per Pack Color Nominal Current Dimensions 60432948 $8.75 10 Pole Jumper Bar 5 Blue 18A PDF 60432947 $8.75 5 Red PDF 0 Features-1-10-00 0000014366 00000 n Poles Volts Type of Trip* Federal Speci-fication W-C-375b UL 489 Interrupting Ratings (rms Symmetrical Amperes) (kA) AC DC Volts AC (50/60 Hz) Volts DC 240 480 600 250** For the release PR113, it is also possible to select neutral protection at 150% and 200% of the rated current of the phases, if compatible with the setting of the current transformers. A review of the most common types of circuit breaker interrupter technologies will be conducted. �͏��e�|��6�i��n��%/v��L2)K� 3��Z��?��n2\�6��RgՊ}��_��[�o�ߧ��N��=d�:k=/Zg��,��>�*��l��m� ��f��ʪ�o�*��\�lM��q*��%sd��i��B��g� 2%u��G�d��2A�u�b��@��2��x�1Ox)(6V��3��Eq � J��A$Q`�cFܘ`�h��x)D�_��޼��+�n]��O**Rs��zE��%b::��P>�u�!s]�FRM"��M��b�T��T�zD\��-;� 4��-|p�)w��21��z��ۖk\��;J�f�-�9u�[�s�N��uڇ�kV(�禞�!�z=�OD��ʤ�*7�S��Q�2�'C� 0000029667 00000 n •The air-break circuit breakers are generally indoor type and installed on vertical panels or indoor draw-out type switchgear. All UL ®, NEMA® and ANSI standards are for molded-case circuit breakers and low voltage power circuit breakers. Two pole rocker switch/thermal-magnetic circuit breaker with trip-free mechanism (S-type TM CBE to EN 60934). Private Bag X2016, Isando 1600. 0000142355 00000 n 0000032618 00000 n They are generally used with generators of high power (100MVA to 1800 MVA) in order to protect them safely, rapidly and in an economical way. 0000002403 00000 n *��ۓ��t��{��KD[f7r�R�q�j�� Key specifications are regulatory agency Underwrit-ers Laboratories’ (UL) Standards for Safety for low-voltage overcurrent protection devices. 0000015372 00000 n c QOU is CSA/UL Listed for 60 Vdc per pole 80–100 A, 1P; 80–125 A, 2P; and 70–100 A, 3P. Allow 2-3 weeks for delivery The addition of a magnetic tripping module to the type 3120 range described in catalogue section Thermal Overcurrent Circuit Breakers extends the choices available (thermal-magnetic protection in pole 1, thermal or no protection in pole 2). ��ߤ*�] ��Ǧ7��SOu&P��V�sqI)�Z�n��ΕջCn 0000023309 00000 n The circuit breakers to be supplied against this specification shall be required to control the primary side of 33/11 KV power transformers in the primary sub-stations (incoming 33KV feeders) or Bus coupler or the outgoing feeders in these sub-stations. Always remember that, depending on the situation (no simultaneity), the fuse will not trip until The circuit breaker with a nominal current of 50 A will then behave as if its nominal current was 0.77 x 50 A = 38.5 A. The differences in UL services related to circuit protection devices and the requirements and test parameters of UL 489 – the standard for Molded-Case Circuit Breakers, – circuit breakers for power distribution (fitted with thermomagnetic or electronic trip units starting from 100 A) – circuit breakers with adjustable magnetic only trip units for motor protection (MCP: Motor Control Protection) – molded case switches for use as isolators or switching devices for lines, busbars or parts of a plant (MCS: %%EOF �J�r!�e��ye��zz�=��ȺPԹ�^�:�v �L��f��˅h~�@��d�v��_�/��[kw��!��d��]N�4�~�z�g0�)�Z{�^* 0000102598 00000 n FOR CONFIGURATIONS NOT NOTED, CONTACT BUSINESS UNIT SINGLE PHASE 160 Series pgs. Table 12-137. 0000032009 00000 n Time constant is 3 milliseconds minimum at 10 kA and 8 milliseconds minimum at 22 kA. 0000003137 00000 n Consult Siemens for any additional charge. Transient recovery voltage (TRV) application considerations and specific switching duties will … Voltage Rating. 0000031987 00000 n They must be able to carry high continuous currents (6300 A to 40000 A), and they must have a •Total breaking time varies between 80-120 ms for circuit breaker up to 12KV and 40-80 ms for circuit breaker above 36KV. 0000002676 00000 n ��؟�|` �hL endstream endobj 174 0 obj 831 endobj 125 0 obj << /Type /Page /Parent 117 0 R /Resources 126 0 R /Contents [ 149 0 R 156 0 R 158 0 R 160 0 R 162 0 R 164 0 R 167 0 R 169 0 R ] /MediaBox [ 0 0 595 842 ] /CropBox [ 0 0 595 842 ] /Rotate 0 >> endobj 126 0 obj << /ProcSet [ /PDF /Text /ImageC ] /Font << /F1 138 0 R /F2 129 0 R /F3 146 0 R /F4 142 0 R /F5 151 0 R /F6 165 0 R >> /XObject << /Im1 171 0 R /Im2 172 0 R >> /ExtGState << /GS1 170 0 R >> /ColorSpace << /Cs5 143 0 R >> >> endobj 127 0 obj << /Filter /FlateDecode /Length 315 >> stream 0000004211 00000 n The QO 35–200 A and all QO-PL and QOT tandem circuit breakers have box-type lugs suitable for single-wire terminations. The differences in UL services related to circuit protection devices and the requirements and test parameters of UL 489 – the standard for Molded-Case Circuit Breakers, Tripswitch Drive, Elandsfontein, Gauteng, cbi@cbi-electric.com. Contact Business Unit for details. Circuit Breakers. 0000003262 00000 n Circuit Breaker A e m a r AF k a e r b l a m r o 3N E Adjustable Thermal / Fixed Magnetic MPCB A 0.10 (example: A16 = 0.16 A) B 1.0 (example: B16=1.6 A) C 10 (example: C16 = 16 A) Fuse or Circuit Breaker Group Installation Single motor taps must be 1/3 the ampacity of the branch circuit conductors Branch Circuit Conductors Branch Circuit Protective Device Measurement range: 1-30 Amps. 0000004692 00000 n 2.6 ANSI C37.12 “Guide to Specifications for AC High Voltage Circuit Breakers Rated on A Symmetrical Current Basis or a Total Current Basis” 2.7 ANSI C37.20.2 “Metal Clad and Station Type Cubicle Switchgear (above If line side lugs are required, add suffix “L” to catalog number. E334037 and E33916 (accessories) Terminal Specifications 140U-D Attribute 140U-D… Use 75°C Cu wire only Terminal Parts Type of terminals Screwdriver Pozidriv No. 1489-M Circuit Breaker Specifications Catalog Numbers 1489-M... Additional Resources ... Control Circuit and Load Protection Selection Guide 1492-SG122...-EN-P Provides product selection, specifications, accessories, and dimensions. PowerPact B-Frame Circuit Breaker Catalog Numbers. internationalsales@cbi … Tel + 27 11 928 2000 • Fax + 27 11 392 2354. 0000016800 00000 n 0000012214 00000 n Motor Protection Circuit Breaker and Motor Circuit Protector Specifications Multiple Motor Installation with MPCBs Each Motor has an Individual Branch Circuit Protective Device. 3 1. conductor 2. conductor [mm2]/[AWG] [mm2]/[AWG] 1…6/⎯ 1…4/⎯ 1. conductor 2. conductor [mm2]/[AWG] [mm2]/[AWG] 0000030172 00000 n 0000032596 00000 n 0000024949 00000 n OF POLES VOLTAGE CATALOGUE NUMBER 10 kA 22 kA 15 1 120/240 THQB1115 THHQB1115 20 1 120/240 THQB1120 THHQB1120 25 1 120/240 THQB1125 THHQB1125 30 1 120/240 THQB1130 THHQB1130 35 1 120/240 THQB1135 THHQB1135 40 1 120/240 … xref 0000003500 00000 n 0000013345 00000 n 0000024002 00000 n 0000012956 00000 n 0000034704 00000 n Installation of current limiting circuit breakers offers several advantages: # Better network protection Current limiting circuit breakers considerably reduce the undesirable effects of short-circuit IEC 60898-1 Electrical accessories-Circuit-breakers for overcurrent protection for house hold and similar installation-Part 1. GB10963.1 Circuit breakers with overcurrent protection for household and similar places - Part 1: Circuit breakers for AC. 0000006437 00000 n �N��+��z�魻l2�a_�t&��4�8�Lv].�z��v�&�E �Ω,��pY,�=2s�Ţ>�ۺ��s }g�k��m�(vgqn�+T��m.U��{��0g��Kh�m��n�v�]@q�M (��鑹K��)݂찔bO��`9a��UaO� ��lw��Xt��qH�9��g��%_��2^�~��j��H�WtB�� QP0��^ށ�c66N�@pYCC�� 0��2GHI)�a�`%%�r�� P� �@V��a