Bender LINETRAXX MRCDB423 Manual Download Page 1

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Manual EN

MRCDB423_D00396_01_M_XXEN/06.2021

LINETRAXX® MRCDB423

Modular Residual Current Device type B for additional protec-
tion (protection against indirect contact) in earthed systems
(TN and TT systems)

Summary of Contents for LINETRAXX MRCDB423

Page 1: ...anual EN MRCDB423_D00396_01_M_XXEN 06 2021 LINETRAXX MRCDB423 Modular Residual Current Device type B for additional protec tion protection against indirect contact in earthed systems TN and TT systems...

Page 2: ...t and ton 8 2 8 External combined test or reset button T R 8 2 9 Device parameter settings 8 3 Dimensions and mounting 9 3 1 Dimensions 9 3 2 Mounting 9 4 Connection 10 5 Operation and settings 11 5 1...

Page 3: ...jury if not avoided I Caution Indicates a low level risk that can result in minor or moderate injury or damage to property if not avoided i Information can help to optimise the use of the product 1 3...

Page 4: ...sed changes to the device made by parties other than the manufacturer Non observance of technical data Repairs carried out incorrectly Use of accessories and spare parts not recommended by Bender Cata...

Page 5: ...ntact in earthed systems TN and TT systems in which AC or DC fault currents may occur Part of these systems are in particular loads with six pulse rectifiers or one way rectifiers with smoothing such...

Page 6: ...lapsed the output relay K1 switches and the prewarning LED lights up The fault remains stored in the device The output relay K1 remains in alarm state and the prewarning LED lights until the reset but...

Page 7: ...l self test The device carries out a self test by pressing and holding the test button T 2 s during which any internal malfunctions are detected and displayed as an error code The output relays K1 K2...

Page 8: ...ay ton1 2 0 10 s is added to the device specific operating time tae and delays signalling Total delay time tan tae ton If the fault does not persist during the response delay the alarm is not signalle...

Page 9: ...n mm 3 2 Mounting Variant A DIN rail mounting Variant B screw mounting The front plate cover can be opened at the lower part marked with an arrow 36 2 2 45 67 5 93 74 1 2 3 Click 2 x 1 x 100 107 Click...

Page 10: ...on with a circuit breaker with undervoltage release or shunt trip The circuit breaker must be able to switch off in less than 17 ms and comply with the IEC 60947 2 standard I Warning An electric shock...

Page 11: ...wn button 1 s MENU 1s 2 s Standard display Menu display Enter button Confirm menu item submenu item and value Back to the next higher menu level 5 2 Display elements The display elements are shown for...

Page 12: ...delay output relay 1 0 10 s 1 s ton2 Response delay output relay 2 0 10 s 0 s Set Password for parameter setting off 000 999 000 FAC Reset to factory settings YES no no SYS Service menu locked 000 999...

Page 13: ...ues for the alarm Idn mA and the prewarning 5 7 2 t menu Setting of the response delay times ton1 and ton2 1 on t s 1 on t s 1 on t s 1 2 s 2 on t s 2 on t s 2 on t 2 A m 2 l A m 2 l A m 2 l 2 1 l 1 l...

Page 14: ...atic afterwards all characters can be displayed with the T button back and the R button forward Press ESC to return to the menu selection 5 7 5 HiS menu The History menu displays the value in the faul...

Page 15: ...ues in the evaluator It is imperative to observe the manual of the respective measuring current transformer 6 2 Dimension diagrams CTX CTBCx CTUB101 12V 12V T GND S1 k S2 l 1 m 2 5 m 5 m 10 m 50 mm 25...

Page 16: ...120 P 103 81 4 x 6 5 CTBC210 P 180 98 4 x 6 5 All current carrying cables must be routed together through the measuring current transformer Never route an existing protective conductor through the mea...

Page 17: ...range measured value AC DC 0 6 A Error of measured value display 17 5 2 digit Measured value memory for alarm value Data record measured values Password off 000 999 000 Fault memory output relay yes...

Page 18: ...043055 B94043056 Response range 30 mA 3 A 30 mA 3 A Rated frequency 0 2000 Hz 0 2000 Hz Supply voltage US DC 9 6 94V AC 42 460 Hz 16 72V DC 70 300V AC 42 460 Hz 70 300V Measuring current transformer t...

Page 19: ...ansformer connection for short circuit or interruption The error code will be deleted once the error has been eliminated the manual self test has been run again test button T and the reset button R ha...

Page 20: ...de www bender de All rights reserved Reprinting and duplicating only with permission of the publisher Bender GmbH Co KG PO Box 1161 35301 Gr nberg Germany Londorfer Str 65 35305 Gr nberg Germany Tel 4...