BENNING CM 9-1 and CM 9-2

TRUE RMS Leakage Current Clamp Meter with a resolution of 1 μA in the 6 mA measuring range

BENNING CM 9-1 and CM 9-2

Error-related leakage currents are caused by weak insulation or insulation damages. The BENNING CM 9-1/ CM 9-2 allows quick and precise localization of all error types. By means of preventive measurements, possible damages due to uncontrolled leakage currents can be avoided in advance.

Common features:

  • measurement of leakage currents and differential currents in electrical systems (VDE 0100/0105), devices (VDE 0701-0702) and machines (EN 60204-1/ VDE 0113-1)
  • DIN EN 61557-13 defines requirements for “current clamps for measuring leakage currents in electrical installations”, e. g. protection against external magnetic fields: class 2, magnetic field ≤ 30 A/m; frequency range: min. 40 Hz to 3rd harmonic of the mains frequency (150 Hz), recommended use: railway (as of 15 Hz), industry (up to 1 kHz)
  • DIN EN 61557-16 (requirements for appliance testers) defines filters with fg = 1 kHz for measuring protective conductor currents IPE in electrical and medical electrical devices
  • precise due to TRUE RMS measuring method
  • reliable and easy detection of insulation faults (e.g. defective cables, loose terminals, contamination, moisture)
  • measurement without switch-off during normal operation of the system/ device
  • ideal for preventive maintenance and fault localization (protection against damages and personal injury, blackouts etc.)
  • precise and reproducible measuring results up to 60 A

BENNING CM 9-1 with multimeter functions:

  • universally applicable for current measurements (60 A), voltage measurements (600 V), resistance measurements (600 kΩ) and continuity tests
  • Low-pass filter (40 Hz - 70 Hz) for rejection of high frequency interference signals
  • memory of measured value (HOLD) and peak value storage
  • incl. carrying case, measuring leads and batteries

BENNING CM 9-2 with Bluetooth® function and App:

  • Bluetooth® Low Energy 4.0 interface
  • IOS and Android app for viewing, storing and sharing measured values via smartphone/tablet
  • Low-pass filter (50 Hz - 60 Hz) for rejection of high frequency interference signals
  • memory of measured value (HOLD) and maximum/minimum value (MAX/MIN)
  • incl. carrying case and batteries

Industrial environments requires TRUE RMS measuring instruments!

Non-linear loads arising e.g. from motor drives with adjustable speed, frequency converters or mains supply units for office equipment and LED lamps generate a reactive power in the mains. As a result, multimeters and current clamps working with the so-called averaging measuring method ("RMS") will display the measured values with reduced accuracy.

In many cases and particularly in industrial environments, it is therefore absolutely necessary to use state-of-the-art "TRUE RMS" measuring instruments. The "TRUE RMS" measuring method indicates the actual effective value of an alternating current correctly – irrespective of whether the signal waveform of the current is sinusoidal or distorted.


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  BENNING CM 9-1 BENNING CM 9-2
indicating range 6,000 (illuminated) 6,000 (illuminated)
basic accuracy 1 % 1 %
AC voltage 10 mV – 600 V -
DC voltage 10 mV – 600 V -
AC current 1 μA – 60 A 1 μA – 60 A
DC current - -
resistance 0.1 Ω – 600 kΩ -
continuity / diode yes / - - / -
frequency - -
capacity - -
effective power - -
power factor (cos φ) - -
interface - Bluetooth®
software - app (IOS, Android)
filter function device (1 kHz), low-pass filter (40 Hz - 70 Hz) device (1 kHz), low-pass filter (50 Hz - 60 Hz)
memory / data log HOLD, PEAK, ZERO HOLD, MAX/MIN
measuring method TRUE RMS TRUE RMS
max. clamp opening 23 mm 40 mm
measuring category CAT IV 300 V, CAT III 600 V CAT IV 300 V, CAT III 600 V
item no. 044682 044685

Technical changes, model or color modifications, mistakes and delivery facilities without notice! No responsibility for literal mistakes.

Further Information

Brochures
Instruction manuals
Price lists

Technical Support
(After Sales Service)

Phone+49 2871 93 555
Emailhotline@benning.de

Returns Management, Calibration, Repairs
Phone+49 2871 93 554
Emailreturns@benning.de

Agencies in Germany


Handelsvertretung Ralf Linde
adress

Mönch-Siegfried-Str. 4
D-46325 Borken


TBB-Technischer Bedarf Böttcher GmbH
adress

Gänseweide 7
D-21379 Lüdersburg


TBB-Technischer Bedarf Böttcher GmbH
adress

Gänseweide 7
D-21379 Lüdersburg


SKE Steffen Klewe
Elektrotechnische Handelsvertretung
adress

Teltower Damm 214
D-14167 Berlin


TBB-Technischer Bedarf Böttcher GmbH
adress

Gänseweide 7
D-21379 Lüdersburg


Udo Wendelmuth
adress

Erfurter Str. 61
D-99195 Schwansee


Schardt oHG *
adress

Bunsenstr. 10
D-42551 Velbert


Beel & Dolle
adress

Bunsenstr. 10
D-42551 Velbert


Udo Wendelmuth
adress

Erfurter Str. 61
D-99195 Schwansee


Christian Herzog
adress

Weinbergstr. 49
D-67434 Neustadt


ELKA Krischke Elektrotechnik
adress

Wettersteinstr. 12
D-82024 Taufkirchen

Agencies abroad


Drugmand & Meert / EMAS / Gecom
tel

+32 (0) 22 51 60 60

fax

+32 (0) 22 52 22 66

adress

De bavaylei 110
1800 VILVOORDE


P.J. Timmerman & Fils N.V.
tel

+32 (0) 23 77 71 66

fax

+32 (0) 23 77 94 58

adress

Koning-Albertstraat 3 - 7
1600 SINT-PIETERS LEEUW


Contragent 35
tel

+3 59 42 60 01 45

fax

+3 59 42 60 01 29

adress

Industrialna Str.
6000 STARA ZAGORA


Benning Power Electronics (Beijing) Co., Ltd.
tel

+86 (0) 10 61 56 85 88

fax

+86 (0) 10 61 50 62 00

adress

Tongzhou Industrial Development Zone
No.1-B BeiEr Street
101113 BEIJING


AGéCOM Diffusion
tel

+33 (0) 3 88 19 70 10

fax

+33 (0) 3 88 19 02 73

adress

6, rue de Londres
CS 60090 Mommenheim
67173 BRUMATH CEDEX


Benning Conversion d'énergie
tel

+33 (0) 2 32 25 23 94

fax

+33 (0) 2 32 25 08 64

adress

43, avenue Winston Churchill
27404 LOUVIERS


V.KAFKAS S.A.
tel

+30 / 21 63 00 30 00

fax

+30 / 21 63 00 31 00

adress

1 klm Markopoulou Aven.
19002 Paiania Attiki

web

www.kafkas.gr


ESCO Co., LTD.
tel

+81/ 6/ 65 32 55 44

fax

+81/ 6/ 65 32 56 17

adress

8-14, 3-chrome
Itachibori Nishi-ku
550-0012 OSAKA


EUROTEC LIMITED
tel

+64/ 9/ 5 79 19 90

fax

+64/ 9/ 5 25 33 34

adress

750, Great South Road
1061 PENROSE, AUCKLAND


Amwittools BV
tel

+31 (0) 1 72 53 84 33

fax

+31 (0) 1 72 53 06 55

adress

Harsweg 22
2461 EZ Ter Aar


ITECE Holland B.V.
tel

+31 (0) 10/ 4 73 60 33

fax

+31 (0) 10/ 4 73 51 46

adress

Lange Haven 49
3111 CB SCHIEDAM


SIBLIK Elektrik GmbH & Co. KG
tel

+43 (0) 1/ 68 00 60

fax

+43 (0) 1/ 6 80 06 59

adress

Murbangasse 6
1100 WIEN


"LL" Spolka z ograniczona
tel

+48/ 7 13 98 08 00

fax

+48/ 7 13 98 08 02

adress

odpowiedzialnoscia sp. k.
dawniej Lange Lukaszuk Sp. j
ul. Wrocławska 43, Byków
55-095 MIRKOW


Benning Power Electronics ROM SCS
tel

+40 (0) 2 55 20 60 96

fax

+40 (0) 2 55 51 66 08

adress

Str. Lunca Grofului, Nr. 4
327055 BUCHIN


OOO Benning Power Electronics Ltd.
tel

+7 4 95/ 9 67 68 50

fax

+7 4 95/ 9 67 68 51

adress

ul. Planetnaya, 11
125167 MOSCOW


Anderba d.o.o.
tel

+381/ 11 76 78 09

fax

+381/ 3 29 21 77

adress

Ljube Stojanovica 36/III
11000 BEOGRAD


Benning Slovensko s.r.o.
tel

+421 (0) 2 44 45 99 42

fax

+421 (0) 2 44 45 50 05

adress

Kukuricná 17
83103 BRATISLAVA


Benning c.d.e. SA
tel

+34 91 6 04 81 10

fax

+34 91 6 04 84 02

adress

C/Pico de Santa Catalina 2
Pol. Ind. Los Linares
28970 HUMANES


Hellermann Tyton (Pty) Ltd
tel

+27 11 8 79 66 20

fax

+27 11 8 79 66 03

adress

Private BAG X 158
2128 RIVORIA


OEM Automatic AB
tel

+46/ 75/ 2 42 41 00

fax

+46/ 75/ 2 42 41 19

adress

Fredriksbergsgatan 2
573 92 TRANAS


EST Elektro - System -Technik s.r.o.
tel

+42 02 66 09 07 11

fax

+42 02 66 09 07 17

adress

Pod pekarnami 338/12
190 00 PRAHA 9 VYSOCANY


Benning Kft.
tel

+36 (0) 33/ 50 76 00

fax

+36 (0) 33/ 50 76 01

adress

Ringló út 99
1221 BUDAPEST

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GER

BENNING Elektrotechnik und Elektronik GmbH & Co. KG

Technical Support

tel

+49 2871 93555

address

factory I
Münsterstr. 135-137
factory II
Robert-Bosch-Str. 20
46397 Bocholt
Germany

GER

BENNING Elektrotechnik und Elektronik GmbH & Co. KG

Service requests

tel

+49 2871 93556

web

www.benning.de

address

factory I
Münsterstr. 135-137
factory II
Robert-Bosch-Str. 20
46397 Bocholt
Germany

GER

BENNING Elektrotechnik und Elektronik GmbH & Co. KG

Return-management

tel

+49 2871 93554

web

www.benning.de

address

factory I
Münsterstr. 135-137
factory II
Robert-Bosch-Str. 20
46397 Bocholt
Germany

GER

BENNING Elektrotechnik und Elektronik GmbH & Co. KG

Sparepart-management

tel

+49 2871 93553

web

www.benning.de

address

factory I
Münsterstr. 135-137
factory II
Robert-Bosch-Str. 20
46397 Bocholt
Germany

GER

BENNING Elektrotechnik und Elektronik GmbH & Co. KG

Training Center

tel

+49 2871 93557

web

www.benning.de

address

factory I
Münsterstr. 135-137
factory II
Robert-Bosch-Str. 20
46397 Bocholt
Deutschland

GER

BENNING Elektrotechnik und Elektronik GmbH & Co. KG

return address

address

BENNING Elektrotechnik & Elektronik GmbH & CO. KG
Dept.: Quality Service / Repair Centre
Robert-Bosch-Strasse 20
46397 BOCHOLT
Germany

BEL

Benning Belgium branch of Benning Vertriebsges. mbH

tel

+32 (0) 2 / 5 82 87 85

address

Assesteenweg 65
1740 TERNAT
Belgium

BEL

Benning Belgium branch of Benning Vertriebsges. mbH

Technical Support & Service

tel

+32 (0) 2 / 5 82 87 85

address

Assesteenweg 65
1740 TERNAT
Belgium

BEL

P.J. Timmerman & Fils N.V.

tel

+32 (0) 23 77 71 66

fax

+32 (0) 23 77 94 58

address

Koning-Albertstraat 3 - 7
1600 SINT-PIETERS LEEUW
Belgium