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- Page 1 Low voltage current transformer Plug-in current transformer CTB series User manual / Mounting instructions Janitza electronics GmbH Vor dem Polstück 6 D-35633 Lahnau Support tel. +49 6441 9642-22 Email: info@janitza.com www.janitza.com...
- Page 2 Nonetheless, we wish to point out that updates of this document are not always possible at the same time as technical refinements are implemented in our products. Please see our website under www.janitza.com for the current version. Please see our website under www.janitza.com for the current version.
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Page 3: Table Of Contents
CTB series current transformer TABLE OF CONTENTS 1. Information on the devices and the user manual 1. 1 Disclaimer 1. 2 Copyright notice 1. 3 Technical changes 1. 4 About this user manual 1. 5 Defective device/disposal 2. Safety 2. -
Page 4: Information On The Devices And The User Manual
(plug-in current transformers) of the the stated performance characteristics and product CTB series and provides information on the operation features. of the devices. Janitza electronics GmbH assumes no liability for... -
Page 5: Safety
CTB series current transformer Safety The chapter on Safety contains information which 2.3 Product safety must be observed to ensure your personal safety The devices reflect current engineering practice and and avoid material damage. accepted safety standards, but hazards can arise nonetheless. -
Page 6: Dangers When Handling The Device
CTB series current transformer www.janitza.com 2.4 Dangers when handling the device WARNING When operating electric devices, components or Risk of injury due to electrical current and voltage! modules, it is unavoidable for certain parts of these Severe bodily injury or death can result! Therefore devices to conduct hazardous voltage. -
Page 7: Safety Information For Handling Current Transformers
CTB series current transformer 2.8 Incoming goods inspection WARNING The prerequisites for trouble-free and safe operation Warning of unauthorized tampering or improper of the devices include proper transport, storage, use of the device! setup and assembly, as well as proper operation Opening, dismantling or unauthorized manipulation of and maintenance. -
Page 8: Product Description
CTB series current transformer www.janitza.com Product description 3.1 Principle of operation CTB series current transformers · are inductive, single-conductor current transformers that operate according to the transformer principle. · are used to adapt a primary measured variable to the nominal input variables of connected measure- ment devices. -
Page 9: Mounting
CTB series current transformer Mounting 4.1 Mounting instructions 1. Use of the secondary terminals (CAGE CLAMP ® 2. Mounting the fastening screws 3. Mounting on copper rail and round conductor 4. Mounting with snap-on mounting 5. Mounting on 35 mm DIN mounting rail with snap-on mounting (CTB 31.35 and CTB 41.35 only) - Page 10 CTB series current transformer www.janitza.com 6. Mounting on a mounting plate Dimensions in mm CTB 31.35 CTB 41.35 CTB 51.35 CTB 61.35 CTB 81.35 CTB 101.35 Dimension "A" 40 / 1.57 40 / 1.57 65 / 2.56 65 / 2.56 95 / 3.74...
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Page 11: Installation
CTB series current transformer www.janitza.com Installation · Ensure there is a safe working environment during 5.1 Measurement circuit assembly, maintenance and installation work. Dis- connect the power supply of the primary conductor and secure it against unintentional reconnection. · Install the current transformer on the primary con- ductor. -
Page 12: Technical Data
CTB series current transformer www.janitza.com Technical data ATTENTION Isolation properties In addition to the following technical data, pay particu- Rated isolation level U lar attention to the information on the rating plate of in accordance with IEC 61010-1 your device! under the following conditions: 1.2 / 6 / - kV... -
Page 13: Type-Specific Technical Data - Primary Rated Current And Rated Power
CTB series current transformer 6.2 Type-specific technical data - Primary rated current and rated power Current transformer type Primary rated current [A] Rated power [VA] CTB 31.35 CTB 31.35 CTB 31.35 CTB 31.35 CTB 31.35 300 CTB 31.35 400 ... -
Page 14: Type-Specific Technical Data - Designs
CTB series current transformer www.janitza.com 6.3 Type-specific technical data - Designs Overall Overall width depth Type Type Type Type Type Type CTB 31.35 CTB 41.35 CTB 51.35 CTB 61.35 CTB 81.35 CTB 101.35 Primary conductor feedthrough 30 x 10 / 40 x 10 / ... -
Page 15: Dimensional Drawings
CTB series current transformer 6.4 Dimensional drawings INFORMATION The dimensional drawings are not to scale! All dimensions in mm! 6.4.1 CTB 31.35 10,30 12,30 20,30 25,30 30,30 6.4.2 CTB 41.35 10,30 15,80 30,30... - Page 16 CTB series current transformer www.janitza.com 6.4.3 CTB 51.35 10,30 12,30 20,30 25,30 30,30 40,30 6.4.4 CTB 61.35 50,20 63,20...
- Page 17 CTB series current transformer 6.4.5 CTB 81.35 40,30 60,20 80,20 6.4.6 CTB 101.35 80,50 100,50...
- Page 18 Janitza electronics GmbH Vor dem Polstück 6 D-35633 Lahnau Support tel. +49 6441 9642-22 Email: info@janitza.com www.janitza.com...