NK 7RL-500NK Series 7 Solid-Core Current Transformers

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50:05:00

Aperture Diameters From 1 1/8” to 3 1/4”
Solid-core Enclosures; Choice of Round Package with Flying Leads or Integral Feet for Panel Mount with Terminals
Optional Split-core Enclosures for Easy Installation Without Disconnecting Wiring
Agency Approved

Applications:

5A secondary compatible with standard products offering a 5A analog input option
Serves as current input for use with APT and APO/APN Series KW transducers
Save space in control panels by remotely locating CTs closer to load
Broad line accommodates primary currents from 50A to 3000A.

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List Price: $88.00

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Description

5Amp Secondary Current Transformers offer a compact, cost-effective means of measuring primary current and providing 0–5A secondary output proportional to the primary current being sensed. Available in solid-core or split-core enclosures.

Current transformers (CTs) for use with power transducers, panel meters, and in two-piece installations with transducers and switches to extend ranges for high amperage/large conductor applications.

Manuals/Guides

Manufacturer Specs

Specifications

General Specifications
Power Supply	Self-powered
Current Ranges	See Ranges/VA Burdens
Output Signal	0–5A (AC)
Frequency	50–400 Hz
Insulation Class	0.6 KV BIL, 10KV full wave
Accuracy	ANSI rated, (<2.0%)
Allowable Burden	Ranges/VA Burdens
Rating Factor	2.0 @ 30°C amb.

Dimensions

Series	Aperture Size
2	1.13” (28.7 mm)
5	1.56” (39.6 mm)
7	2.50” (63.5 mm)
8	3.25” (82.6 mm)
1SP	0.84”x 2.00”
3SP	2.19”x 3.25”
5SP	2.88”x 4.25”
7SP	2.88”x 6.25”

Ranges/VA Burdens

		Solid-Core Series				Split-Core Series
Model	CT Ratio:5	2	5	7	8	1SP	3SP	5SP	7SP
500	50	1.0	0.75	0.5
750	75	2.0	1.25	1.0
101	100	2.5	2.25	2.0		1.0
151	150	4.0	5.0	2.5
201	200	5.0	5.0	5.0	5.0	1.5	1.0
251	250	7.5	12.5	5.0	7.5
301	300	10.0	12.5	5.0	15.0	2.0	1.0
401	400		12.5	12.5	25.0	5.0	2.0
501	500		25.0	15.0	35.0		3.0	2.0
601	600		25.0	25.0	50.0		5.0	3.0
801	800		30.0	35.0	60.0			10.0	5.0
102	1000		35.0	35.0	75.0		20.0	15.0	10.0
122	1200		40.0	40.0	75.0			25.0	15.0
152	1500			50.0	90.0			35.0	20.0
162	1600			50.0	100.0
202	2000				120.0			50.0	40.0
252	2500				50.0				50.0
302	3000								50.0