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Pearson Clamp-On Current Transformer

Brand: Pearson
Origin: United States

Pearson Clamp-On Current Transformer

Opening current transformers for AC and pulse measurements around the conductor under test.

Key specification options

Output (V/A): 1 / 0.5 / 0.1 and more
Aperture (inch): 0.5 / 1 / 2 and more
Maximum peak current (Amps): 500 / 15 / 1000 and more
Droop (%/μsec.): 1 / 0.7 / 0.4 and more
Rise time (nsec.): 2 / 15 / 2.5 and more
IT Max.(A-s): 0.003 / 0.0015 / 0.002 and more

Product design

Pearson clamp series products use an opening structure rather than a fixed aperture. When planning a test around an existing conductor, confirm the opening and closure arrangement and output connection, and follow the model instructions for conductor insulation and safe operation.

Measurement and application

AC and pulse current testing involves observing how a waveform changes over time as well as its amplitude. The transformer construction, conductor arrangement and output connection all influence the measurement setup.

Selection and connections

Prepare details of the conductor, available space, waveform and oscilloscope input. Installation requirements differ between fixed and opening structures; output cables and termination should follow the instructions for the selected model.

Related models & specifications

Pearson Pulse Current Transformer

Model selection

Pearson Pulse Current Transformer / Model selection
Model	Output (V/A)	Aperture (inch)	Peak current (A)	Droop (%/ms)	Rise time (ns)	IT Max(amp-sec.)	Maximum rms (A)	3dB low frequency (Hz)	3dB high frequency (MHz)	I/f(A/Hz)
2877	1	0.25	100	200	2	0.004**	2.5	300	200	0.0025
4100	1	0.5	500	90	10	0.002**	5	140	35	0.006
2100	1	2	500	80	20	0.005**	7.5	125	20	0.017
6585	1	2	500	300	1.5	0.002**	10	400	250	0.008
6656	1	3.5	500	140	3.5	0.01**	10	200	120	0.04
3100*	1	3.5	500	40	50	0.03**	12	40	7	0.1
150	0.5	2	1000	20	20	0.02**	15	40	20	0.07
6595	0.5	2	1000	100	2.5	0.008**	20	100	200	0.03
325*	0.25	3.5	2000	100	30	0.09	60	160	10	0.6
2878	0.1	0.25	400	20	5	0.004**	10	30	70	0.025
410	0.1	0.5	5000	60	20	0.25	50	120	20	1.7
411	0.1	0.5	5000	0.9	20	0.2**	50	1	20	0.6
3972	0.1	1	5000	1	20	0.2	50	1	20	0.6
110	0.1	2	5000	0.8	20	0.5**	65	1	20	1.5
110A↑	0.1	2	10000	0.8	20	0.5**	65	1	20	1.5
6600	0.1	2	2000	15	5	0.04**	40	25	120	0.12
310*	0.1	3.5	5000	20	40	0.6	140	40	10	3.6
1010*	0.1	10.75	5000	250	50	0.7**	120	400	7	4.4
1025	0.025	2	20000	100	100	0.5	100	160	4	3
3025*	0.025	3.5	20000	4	100	3	325	7	4	20
2879	0.01	0.25	2000	2	20	0.04**	25	3	20	0.25
5046	0.01	0.5	25000	0.3	20	0.5**	100	0.5	20	3
101	0.01	2	50000	0.1	100	2.5**	200	0.25	4	12
4997	0.01	2	20000	0.3	25	1.0**	150	0.5	15	3.5
301X*	0.01	3.5	50000	3	200	22	400	5	2	140
1080*↑	0.005	3.5	200000	2	250	25	750	3	1.5	150
1330*	0.005	3.5	100000	1	250	65	1400	0.9	1.5	400
4418	0.001	2	200000	0.05	200	6.0**	400	0.7	2	40
1423*	0.001	3.5	500000	0.7	500	75	2500	1	0.7	450
2093*	0.001	4.75	500000	0.09	2000	1200	2500	0.15	0.2	7500

View product details

Pearson Clamp-On Current Transformer

Model selection

Pearson Clamp-On Current Transformer / Model selection
Model	Output (V/A)	Aperture (inch)	Maximum peak current (Amps)	Droop (%/μsec.)	Rise time (nsec.)	IT Max.(A-s)	Current, rms (A)	3dB low frequency (Hz)	3dB high frequency (MHz)	I/f(rmsA/Hz)	I2t max
8585C	1	0.5	500	1	2	0.003	5	1500	200	0.01	5
4100C	1	0.5	500	1	15	0.0015	5	1500	25	0.008	150
8590C	1	1	500	0.7	2.5	0.002	5	1000	150	0.01	25
7790	1	1	500	1	15	0.002	5	1500	25	0.01	150
4688	1	2	500	0.4	12	0.005	15	600	30	0.03	150
8705C↑	1	2	15	4	1	0.0006	4	1500	400	0.002	0.02
7805	1	4	500	0.7	25	0.004	15	1000	25	0.02	150
7760	1	6	500	0.5	50	0.005	20	750	7	0.03	350
5101	0.5	2	1000	0.1	20	0.02	25	150	18	0.08	700
5949↑	0.5	4	1000	0.1	30	0.02	30	150	12	0.08	700
411C	0.1	0.5	5000	0.015	20	0.15	50	25	20	0.7	18000
7795	0.1	1	5000	0.015	25	0.15	60	25	15	0.8	18000
3525	0.1	2	5000	0.004	25	0.5	100	6	15	2.5	18000
7810	0.1	4	5000	0.007	50	0.4	150	10	7	2	18000
7655	0.1	6	5000	0.007	100	0.4	175	10	4	2	35000
5008C	0.01	0.5	50000	0.005	150	1	150	7.5	3	4.2	250000
7800	0.01	1	50000	0.003	175	0.8	125	5	2	4	140000
4160	0.01	2	50000	0.001	200	2.5	300	1.5	2	15	1000000
7815	0.01	4	50000	0.001	200	3	400	1.5	2	15	2000000
7450	0.01	6	50000	0.001	250	3	400	1.5	1.5	12	2000000
5664	0.001	2	200000	0.00025	250	8	500	0.4	1.5	50	1000000

Pearson Custom Current Transformer

Custom model specifications · Group 1

Pearson Custom Current Transformer / Custom model specifications · Group 1
Model	Output (V/A)	Aperture (inch)	Peak current (Amps)	Droop (%/ms)	Usable rise time (ns)	IT Max.(A-sec.)	Maximum RMS current (A)	3dB low frequency (Hz)	3dB high frequency (MHz)	I/f(A/Hz)
5753	10	2.0	50	700	150	0.0005	4	1000	3	0.004
5834	10	2.0	50	300	350	0.001	4	500	1	0.006
8600	10	2.0	10	35000	3	0.00005	1	45000	125	0.00007
2854	1	5.0	500	40	15	0.04	5	30	20	3.5
7737	1	10.75	500	500	40	0.006	35	750	9	0.003
8181	1	1.0	500	80	15	0.002	5	125	20	0.014
8122	1	2.0	500	4	400	0.1	40	6	1	0.6
6027	1	Coaxial	100	200	2	0.0004	2.5	300	200	0.0025
8440	1	3.5	500	3	350	0.25	75	4	1	1.5
804	0.1	2.0	5000	50	20	0.5	75	30	20	3.5
804R	0.1	2.0	5000	12	20	0.6	75	20	20	3.5
8611	0.1	4.0	5000	1.5	40	0.5	140	2	10	3
3363	0.1	5.0	5000	90	40	1	150	120	10	7.5
3382	0.1	15.0	1000	50	80	1.5	250	100	4	10
4285	0.1	10.75	5000	1.5	50	0.4	300	2	7	5.7
5011	0.1	0.25	400	20	5	0.004	10	30	70	0.025
5673	0.1	2.0	5000	100	9	0.15	100	150	40	1.1
8365	0.1	0.25	400	7	20	0.004	10	10	20	0.025
8606	0.05	10.75	10000	0.5	75	3	600	1	5	21.2
2811A	0.02	0.5	1000	1	500	6	150	1.5	0.7	40
8535	0.01	1.0	25000	0.3	25	0.6	120	0.5	15	4
4191	0.01	4.0	50000	4	60	5	400	6	7	35
4994	0.01	2.0	50000	3	100	4.5	200	5	4	25
5803	0.01	10.75	50000	4	200	12	1000	7	2	80
5624	0.01	2.0	20000	9	25	2	150	12	20	12
7427	0.01	2.0	4000	2	5	0.2	100	5	70	1.2
5008	0.01	0.5	50000	6	150	2	150	10	3	12
8573	0.01	3.5	50000	0.02	200	30	750	0.03	2	225
6247A	0.005	4.0	100000	2	350	20	1500	3	1	120
4427	0.001	3.5	500000	0.1	300	480	2800	1	1.2	3060
5623	0.001	2.0	200000	1	200	15	400	1.5	2	90
3880	0.001	12 x 2	100000	0.3	500	150	1200	0.5	0.7	1000
2445	0.001	14.5	500000	1.5	300	40	3000	3	2	250
4906	0.001	10.75	500000	1	400	50	2000	2	1.5	300
7561	0.0005	4.75	1000000	0.2	2000	750	3500	0.15	0.2	3500

Custom model specifications · Group 2

Pearson Custom Current Transformer / Custom model specifications · Group 2
Model	Output (V/A)	Aperture (inch)	Peak current (A)	Droop (%/ms)	Usable rise time (ns)	IT Max.(A-sec.)	Maximum RMS current (A)	3dB low frequency (Hz)	3dB high frequency (MHz)	I/f(A/Hz)
8240	2	2.0	500	n/a	12	n/a	n/a	100000	30	n/a
8546	1	2.0	500	10	600	0.15	50	15	0.5	1.1
8375	1	2.0	500	7000	4	0.001	10	11000	100	0.007
8536	1	9.0	500	750	75	0.007	25	1250	5	0.04
8579	0.1	10.75	5000	250	50	0.7	120	400	7	4.4
6996	0.1	2.0	5000	1040	25	0.5	100	2000	20	3
8330	0.01	2.0	1000	100	7	0.3	100	200	50	2.1
7325	0.01	3.5	50000	3	200	400	100	5	2	140
5769	0.05	3.5	10000	8	100	4	250	12	3.5	25
8591	0.001	6.0	500000	0.3	400	15	1000	0.4	1	105

Custom model specifications · Group 3

Pearson Custom Current Transformer / Custom model specifications · Group 3
Model	Output (V/A)	Aperture (inch)	Peak current (A)	Droop (%/ms)	Usable rise time (ns)	IT Max.(A-sec.)	Maximum RMS current (A)	3dB low frequency (Hz)	3dB high frequency (MHz)	I/f(A/Hz)
7266	1	0.5	500	0.09	10	0.002	5	140	35	0.006
7305	1	1.75	500	0.08	20	0.005	7.5	125	20	0.017
3464	0.1	1.75	5000	0.8	20	0.5	100	1	20	1.7
4936	0.1	0.5	5000	0.9	20	0.2	50	1	20	0.6
5007	0.01	1.75	20000	0.3	20	1	150	0.5	20	3.5
5405	0.01	0.5	50000	6	150	2	150	10	3	12
8574	0.025	1.75	20000	100	100	0.5	100	160	4	3

Custom model specifications · Group 4

Pearson Custom Current Transformer / Custom model specifications · Group 4
Model	Output (V/A)	Aperture (inch)	Peak current (A)	Droop (%/ms)	Usable rise time (ns)	IT Max.(A-sec.)	Maximum RMS current (A)	3dB low frequency (Hz)	3dB high frequency (MHz)	I/f(A/Hz)
7713-03	1	0.22	100	600	1.5	0.0002	2	1000	250	0.0014
8105-03	0.1	0.22	300	50	10	0.002	6	50	40	0.013
5974	0.1	0.5	5000	1	20	0.15	50	2	20	0.6
8500	0.1	2.0	5000	4	20	0.1	75	10	20	0.6
8445	0.1	2.0	5000	4	20	0.1	75	10	20	0.6
8568	0.01	0.5	25000	0.4	25	0.4	100	0.8	15	2.5
8532	0.01	1.0	10000	0.5	25	0.5	100	0.7	15	3
7765	0.01	2.0	20000	1	25	0.25	150	1	20	1
6535-03	0.005	0.22	5000	1.5	20	0.04	30	2.5	20	0.25

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Pearson Pulse Current Transformer

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