Fluke 1577 Insulation Data Sheet

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Current clamp set
5 A/50 A 1-, 3-phase
and 3-phase+N

Technical Data

These current clamp sets have been
designed for applications with Fluke
1735 and Fluke 1740 series products for
accurate non intrusive measurement of
ac currents. Using latest technologies
(integrated memory for calibration data)
provides current ranges from 0.125 A up
to 50 A in a frequency range of 40 Hz to
5 kHz. The clamps are approved for the
required installation category.

Electrical specifications
Nominal current |n
Overload
Max. non-destructive current
Conductor position influence
Error due to adjacent conductor
Phase shift at 2 kHz at 200 A
Frequency range
Temperature coefficient
Working voltage (see section safety)

5/50 A ac r.m.s.
Up to 65 A ac r.m.s.
200 A ac r.m.s.
< 0.5 % of range at 50/60 Hz
≤ 15 mA/A at 50 Hz
< ± 1 degree
40 Hz to 5 kHz (- 3 dB)
0.015 % of range/°C
600 V ac r.m.s. or dc

Accuracy (at 50 Hz)
Primary current
Operating error in % of reading
Phase shift

0.125 A to 2.5 A
± 2.5 %
Not specified

2.5 A to 12.5 A
± 1.5 %
< 2°

12.5 A to 25 A
± 0.5 %
< 0.5°

25 A to 50 A
± 0.5 %
< 1°

General specifications
Maximum conductor size
Cable length
Operating temperature range
Storage temperature range
Operating humidity
Weight (per clamp)
Environment temperature range
Humidity
Current
Safety standards

EMC standards
Safety

15 mm diameter, bus bar 15 mm x 17mm
2m
-10 °C to +55 °C
-20 °C to +70 °C
15 % to 85 % r.h. (non-condensing)
175 g
+18 °C to +26 °C
20 % to 75 % r.h.
Sinusoidal waveform, 48 Hz to 65 Hz, distortion factor: < 1 %, no dc
component
IEC/EN61010-1: 2001
IEC/EN61010-2-032:2002
IEC/EN61010-031:2002
IEC/EN 61326-1:2006
600 V CAT III, pollution degree 2

The current clamps are designed for use on insulated conductors. For using it with uninsulated conductors you have to
switch off before attaching the clamp. The application of the clamps on uninsulated conductors is limited to 600 V ac r.m.s.
or dc to ground and frequencies below 1 kHz.

Dimensions (in mm)

Symbols
Do not apply around or remove from HAZARDOUS LIVE conductors.
Product is protected by double insulation.
Risk of Danger. Important information. See Instruction Sheet.
Risk of Electric Shock.

Fluke.	 Keeping your world
	
up and running.®
Fluke Corporation
PO Box 9090, Everett, WA 98206 U.S.A.
Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands

Ordering information

For more information call:
In the U.S.A. (800) 443-5853 or
Fax (425) 446-5116
In Europe/M-East/Africa +31 (0) 40 2675 200 or
Fax +31 (0) 40 2675 222
In Canada (800)-36-FLUKE or
Fax (905) 890-6866
From other countries +1 (425) 446-5500 or
Fax +1 (425) 446-5116
Web access: http://www.fluke.com

3-phase: 3024436 I5A/50A Clamp PQ3
3-phase+N: 3024449 I5A/50A Clamp PQ4

©2009 Fluke Corporation.
Specifications subject to change without notice.
Printed in U.S.A. 11/2009 3564635A D-EN-N

Canadian Standards Association has certified that the product meets
applicable U.S. and Canadian Standards.
Conforms to relevant European Union directives.

Modification of this document is not permitted
without written permission from Fluke Corporation.

2 Fluke Corporation

Current clamp set 5 A/50 A 1-, 3-phase and 3-phase+N



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