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United States Patent 6400543 ... Multi-pole circuit breaker with an interchangeable thermal-magnetic trip unit. EP0066486: Operating mechanism for a low-voltage multi-pole circuit breaker. ... Trip unit 22 comprises a user-adjustable switch 30, a current sensor 32, an analog-to-digital (A/D) ...
A circuit breaker for a multi-pole electrical distribution circuit includes a cassette associated with each pole in the multi-pole electrical distribution circuit. Each cassette includes a housing, a pair of electrical contacts disposed in the housing, and a thermal and magnetic trip unit supported by the housing. The housing includes a first compartment having the electrical contacts disposed ...
Use of inverse time, adjustable instantaneous pickup circuit breakers for short circuit and ground fault protection of energy efficient motors
Abstract: A magnetic trip device of a thermal magnetic circuit breaker and a thermal magnetic circuit breaker including such a magnetic trip device, and also a method for adjusting a magnetic field area of a magnetic trip device of a thermal magnetic circuit breaker, are disclosed. In at least one embodiment, the magnetic trip device includes at least an armature locator moveable …
This preview shows page 55 - 57 out of 60 pages. Discontinued products 3VT MCCB with adjustable thermal - magnetic trip unit (overload & short circuit protection) Breaking capacity Rated current 3 pole 4 pole (Icu - 415V, 50Hz) Frame (415V, 50Hz) Type Type 22 - 32 A 3VT8203-1BA03-0AA2 3VT8203-1BA04-0AA2 44 - 63 A 3VT8206-1BA03-0AA2 3VT8206 ...
3VA51706EC310AA0. SIEMENS LOW VOLTAGE 3VA UL MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP UNIT. 3VA51 FRAME WITH HIGH (CLASS H) BREAKING CAPACITY. 70A 3-POLE (25KAIC AT 600Y/347) (65KAIC AT 480V). TM230 TRIP UNIT WITH FIXED Ir ADJUSTABLE Ii.
This is a thermal magnetic trip unit... i do not understand the dials and settings.. There are three dials one for each leg... the dials go from 5 on right to 10 on left I have seen other breakers that have a scale in percentage of the amp rating of breaker i understand those .
Eaton JT3125T Series C NEMA J-frame Trip Unit Only Series C NEMA J-frame Trip Unit Only, Type Jt, Cable In/cable Out, 3-pole, 125 Amp, 600 Vac, Adjustable Thermal-magnetic Trip
Trip unit 12 includes a trip unit housing 26, and a tripping mechanism 28. In the embodiment of FIG. 1A, unit 12 also includes an electrically conductive L-shaped stab or blade 30. Housing 26 includes a molded plastic outer wall 32 through which L-shaped blade 30 extends.
US6400543B2 US09/682,011 US68201101A US6400543B2 US 6400543 B2 US6400543 B2 US 6400543B2 US 68201101 A US68201101 A US 68201101A US 6400543 B2 US6400543 B2 US 6400543B2 Authority US United States Prior art keywords limit value trip unit signal electronic trip rise Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
A molded case thermal-magnetic circuit breaker having improved low current magnetic trip response pivotally arranges the magnet within the circuit breaker thermal-magnetic trip system for controllably moving toward the latching armature assembly. The movement of the magnet decreases the magnetic separation distance between the magnet and the latching armature to optimize the magnetic trip ...
A wider range of trip units is able to support a better customization of the protection functions. TMA thermomagnetic trip units with adjustable thresholds for overload and short circuit protection are a good option for DC applications. New Ekip electronic trip units …
EntelliGuard TU Trip Unit. Integral to the EntelliGuard G breakers are the new, state-of-the-art EntelliGuard TU Trip Units, which provide superior system protection, system reliability, monitoring and communications. The breaker-trip unit system delivers superior circuit protection without compromising either selectivity or arc flash protection.
The current values are combined and rectified through diodes D.sub.3, D.sub.4 and are inputted to the trip unit signal conductor 38 within via connection with terminal B. Connection between the optional circuit neutral conductor 31 and the trip unit neutral conductor 42 is made via terminal D and connection between the optional circuit neutral ...
The computer 1912 includes a processing unit 1914, a system memory 1916, and a system bus 1918. The system bus 1918 couples system components including, but not limited to, the system memory 1916 to the processing unit 1914. The processing unit 1914 can be any of various available processors.
3va53405ec310aa0 by siemens. siemens low voltage 3va ul molded case circuit breaker with thermal - magnetic trip unit. 3va53 frame with medium (class m) breaking capacity. 400a 3-pole (18kaic at 600v) (35kaic at 480v). tm230 trip unit with fixed ir adjustable ii. special features ...upc: 804766793349. siemens low voltage 3va ul molded case circuit breaker with thermal - magnetic trip unit ...
The product is verified as being authentic; however, this does not guarantee the condition or fit for purpose of the product. JT3100T. Eaton molded case circuit breaker accessory trip unit, Trip unit, Trip unit thermal-magnetic, 100 A, Three-pole, Fixed thermal, adjustable magnetic, JT, Frame J-K, Series C. Download. Zoom.
Eaton JT3200T Trip Unit, Adjustable, Breaker, Molded Case, 200A, 3P, 600V 200 Amp, 3-Pole Series C NEMA J-Frame Trip Unit Only, Type JT, Cable In/Cable Out, 600 VAC, Adjustable Thermal-Magnetic Trip.
Breaker, Molded Case, Trip Unit, 300 Amp, 3-Pole, K Frame, Thermal/Magnetic Adjustable, Protection Type F Also known as: 885630442495, 140G-KTF3-D30 Documents
DANNY O. WRIGHT, COBB'S CREEK, VA (US) De Vito, Raymond P. Dehm, Christine Denton, Monte Di Marco Bernard ... Thermal-magnetic trip unit with adjustable magnetic tripping: Bernard DiMarco, Lilburn, GA: Applicant: 2/15/2000 ... LAWRENCE E. EDELMAN has not been involved in any patent assignment transactions in the PlainSite database. Filter By ...
PowerPact M-frame circuit breakers use an electronic trip system with the simplicity of a thermal magnetic breaker. Basic electronic trip protection from 300 to 800 A up to 600 Vac. 2- and 3-pole unit mount and I-line construction. UL listed interrupting ratings from 35 to 65 kA at 480 Vac.
140G-HTF3-D10 Breaker, Molded Case, 100A, 3P, 600VAC, Trip Unit AIC Rating Breaker, Molded Case, 100 Amp, 3-Pole, 600 Volt AC, Trip Unit AIC Rating, Adjustable Thermal/Magnetic Rating Item #: …
Compact Electronic Trip Molded Case Circuit Breaker 250A, High breaking capacity . KRIPAL has the Utility Model Patent for the structure of double making & double breaking. Description: The UKM32 series MCCB are used for making, breaking, and protection of …
Circuit breaker having solid state and thermal-magnetic trip means Patent number: 4090156 Abstract: A molded case multi-pole circuit breaker is provided with a solid state trip unit constructed to automatically open the breaker responsive to predetermined fault current conditions by actuating a permanent magnet latch.
Thermal magnetic units don't trip if the overload isn't dangerous, but will trip instantly with heavy short-circuit currents. Electronic trip units The CTs monitor current and reduce it to the required ratio for direct input into the printed circuit board, the brains of the electronic trip unit.
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An adjustable magnetic trip unit for a circuit breaker ( 1 ) is equipped with a magnet yoke ( 16 ), an armature element ( 18 ) that works therewith to actuate a trip shaft ( 14 ), and an adjusting bar ( 23 ) that can be tilted about the axis ( 15 ) of the trip shaft ( 14 ) for adjusting the distance (L) between the magnet yoke ( 16 ) and the armature element ( 18 ).
3va51504ec310aa0 by siemens. siemens low voltage 3va ul molded case circuit breaker with thermal - magnetic trip unit. 3va51 frame with standard (class s) breaking capacity. 50a 3-pole (14kaic at 600y/347) (25kaic at 480v). tm230 trip unit with fixed ir adjustable ii. special feat...upc: 804766300714
US2574093A US86135A US8613549A US2574093A US 2574093 A US2574093 A US 2574093A US 86135 A US86135 A US 86135A US 8613549 A US8613549 A US 8613549A US 2574093 A US2574093 A US 2574093A Authority US United States Prior art keywords armature circuit breaker thermal trip tripping Prior art date Legal status (The legal status is an assumption and is not a legal …
siemens low voltage 3va ul molded case circuit breaker with thermal - magnetic trip unit. 3va53 frame with high (class h) breaking capacity. 300a 3-pole (25kaic at 600v) (65kaic at 480v). tm230 trip unit with fixed ir adjustable ii. special features: without …
KEMA Thermal Magnetic Molded Case Circuit Breaker Panel 250A 3P MCCB . KRIPAL has the Utility Model Patent for the structure of double making & double breaking. Description: The UKM32 series range of Molded Case Circuit Breakers (MCCBs) is designed for circuit protection of low voltage distribution system.
MAGNETIC TRIP ELEMENT . A magnetic trip element circuit breaker uses an electromagnet in series with the circuit load as in figure 2-20. With normal current, the electromagnet will not have enough attraction to the trip bar to move it, and the contacts will remain closed as shown in figure 2-20, view A.
siemens low voltage 3va ul molded case circuit breaker with thermal - magnetic trip unit. 3va52 frame with medium (class m) breaking capacity. 100a 3-pole (18kaic at 600v) (35kaic at 480v). tm240 trip unit with adjustable ir adjustable ii. special features: without lugs. dimensions (w x …
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