Current Indicators | McMaster-Carr

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AC Current

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C-UL Recognized Component

CE Marked

CSA Certified

CSA-US Certified

TUV Rheinland Certified

UL Listed

UL Recognized Component

Measures

Height

Measurement Unit

AC Voltage

2.4 kV AC to 500 kV AC

Alert Type

Light

Sound

Wire Lead Gauge (AWG)

For Fluke Model Number

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

3A992

EAR99

Electrical Connection

RJ45

Spring-Clamp Terminal

Width

Depth

Color

Wire Diameter

Manufacturer Model Number

Electrical Safety Rating

CAT II, 1,000V

CAT III, 600V

CAT IV, 600V

Software Features

Adjustable Motor Drive Check

Auto Power Off

Diode Check

Sound Alert for Continuity

American Wire Gauge (AWG)

Wire Lead Length

Output Current

Current

19 Products

Current Indicating Rings


Red Light	Wire Lead Connection

Run current-carrying wires through these rings to monitor AC current flow.

Red Light—Rings with a red light illuminate to indicate power.

Wire Lead Connection—Rings with wire lead connections can monitor current from up to 200 ft. away when you attach a remote LED (not included) that illuminates when current is present.

	Current Indicating Rings														Brackets
							Wire Lead
	AC Current, amp	For Max. Wire Dia.	Alert Type	Wire Connection	Requires	Input Power	Lg.	Ga.	Ht.	Wd.	Dp.	Certification		Each		Each
Measures AC Current



		2 to 100	0.31"	Red Light	—	—	Self-Powered	—	—	1.29"	0.46"	0.95"	—	6570K12	000000	———	0


		2 to 100	0.29"	—	Wire Leads	Remote LED	Self-Powered	12"	22	1.04"	0.46"	0.95"	C-UL Recognized Component, UL Recognized Component	6570K6	00000	———	0
		2.5 to 100	0.55"	—	Wire Leads	Remote LED	Self-Powered	24"	20	1.49"	0.52"	1.33"	C-UL Recognized Component, UL Recognized Component	6570K9	00000	6570K11	00000

Bulbs

		Each
Remote Red LED for Rings with Wire Leads (200 ft.Max. Monitoring Distance)	6570K7	000000

Current Detectors

Check for the presence of AC current and voltage without making direct contact with a wire. The detector has light and sound alerts that indicate current when it is held near the electrical component.

Electrical Safety Rating	Measures	AC Current	AC Voltage, V AC	Alert Type	Sensor End	Certification	Batteries Included		Each
CAT III, 600V	AC Current, AC Voltage	200 mA to 1,000 amp	12 to 600	Light, Sound	Noncontact	C-UL Listed, UL Listed	Yes	8338T11	000000

Fluke Test Lead Kits

These kits include a set of red and black Fluke test leads with a variety of interchangeable tips.

The connection end on the test leads is a 4 mm banana plug, which is the standard for connecting to a multimeter.

Mfr. Model No.	For Fluke Model No.	AC Voltage, V AC	DC Voltage, V DC	Current, amp	Electrical Safety Rating	Includes	Cord Lg.	Color		Each
TLK-225	27 II, 28 II, 83V, 87V, 175, 177, 179, 287, 289, 787, 789, 1577, 1587	1,000	1,000	1	CAT IV, 600V	Two Cords with Sheathed Straight Banana Plug and Sheathed Right-Angle Banana Plug Two Needle Tips Two Insulated Alligator Clips Two Retractable Grabbers Two Retractable Precision Grabbers Two Retractable Precision Hooks Pouch	59"	Black, Red	7093K44	0000000
TLK289	287, 289, 376, 381	1,000	1,000	3	CAT II, 1,000V	Two Cords with Sheathed Straight Banana Plug and Sheathed Right-Angle Banana Plug Two Needle Tips Two Insulated Alligator Clips Two Retractable Grabbers Two Retractable Precision Hooks Thermocouple Magnetic Hanger Pouch	59"	Black, Red	7093K49	000000

Voltage Detectors for Hard Hats


Shown with Hard Hat (Sold Separately)

Clip these detectors to your hard hat to identify voltage and current from 360°. Without making physical contact, they flash light in the direction of the electrical threat and beep louder as you get closer to it. These lightweight detectors are comfortable to wear all day. They’re often used to identify live conductors, energized lines underground, and residual voltage.

Set the sensitivity level to determine when the detector alerts you. While the battery life varies depending on the number of alerts, a full charge can last up to five days. Recharge the battery with the included USB charging cable or a standard USB 2.0 Micro-B charger.

120V AC to 500 kV AC—120V AC-500kV AC detectors sense voltages as low as those in a power socket and as high as those in high-power transmission lines. Since they detect a wide range of voltages, they’re a helpful tool for rescue workers, electricians, and telecom workers. They can also connect to an app to notify emergency response services when there is a fall, injury, or no movement detected. The app is optional, and it requires a paid subscription. This safety feature makes these detectors a great option for those working alone.

2.4 kV AC to 500 kV AC—2.4kV AC to 500kV AC detectors identify a wide range of voltages found in high-power transmission lines, so they’re often used by linemen. However, they won’t detect the low voltage ranges found in telecom lines or small machinery.

Voltage Detectors														Replacement Hard Hat Clips
				Batteries
AC Voltage, kV AC	No. of Sensitivity Levels	AC Current, amp	Measures	Life, hr.	Included	Includes	Alert Type	Flammability Rating	Wt., oz.	Enclosure Rating	Features		Each		Each
120 to 500	11	1 to 200	AC Current, AC Voltage	40	Yes	Carrying Case, USB Charging Cable	Light, Sound	UL 94 V-0	0.95	IP67	App Connectivity	8018N12	0000000	8018N13	00000
2.4 to 500	7	1 to 200	AC Current, AC Voltage	80	Yes	Carrying Case, USB Charging Cable	Light, Sound	UL 94 V-0	0.5	IP67	—	8018N11	000000	———	0

Fluke Insulation-Testing Multimeters

Check insulation quality in electrical equipment such as motors and power tools. You can also take other electrical measurements with these Fluke multimeters, known for quality and durability.

True RMS AC Calculation—True RMS multimeters take accurate AC measurements regardless of the load type or sine wave shape. This is important for testing electronic devices that draw current in short pulses that can distort the shape of the wave, such as computers and adjustable-speed drives.

Multimeters with Calibration Certificate—Multimeters with calibration certificate include a document stating that they have passed a test for accuracy.

Display Count—Display count is an industry designation and not an actual value. For example, a 6,000-count multimeter shows numbers up to 5,999. A higher display count means the multimeter can give a more precise measurement.

													Multimeters		Multimeters with Calibration Certificate
	Mfr. Model No.	Electrical Safety Rating	Measures	Max. AC Voltage, V AC	Max. DC Voltage, V DC	DC Voltage Accuracy	Max. AC Current, mA	Max. DC Current, mA	Hardware Features	Display Count	Includes	Enclosure Rating		Each		Each
True RMS AC Calculation



		1577	CAT IV, 600V	AC Current, AC Voltage, DC Current, DC Voltage, Resistance	1,000	1,000	0.2%	400	400	Overload Protection	6,000	Alligator Clips, Hard Case, Remote Probe, Test Leads	IP40	7093K69	0000000	7093K556	000000000


		1587 FC	CAT IV, 600V	AC Current, AC Voltage, Capacitance, DC Current, DC Voltage, Frequency, Resistance, Temperature	1,000	1,000	0.09%	400	400	Overload Protection	6,000	Alligator Clips, Hard Case, Remote Probe, Temperature Probe, Test Leads	IP40	7093K68	000000	7093K901	00000000

Status-Indicating DIN-Rail-Mount Power Supplies

Monitor voltage, current, remaining life, and other maintenance data from your PC, PLC, or by glancing at the digital display. There's no need to inspect these power supplies with multimeters or other test equipment. They also connect to your network, so you can view and analyze data remotely. Like other power supplies, they convert AC to DC voltage to power electronic equipment. Mount these power supplies onto DIN rails, which are commonly found inside industrial cabinets and electrical panels. All have spring-clamp wire terminals for quick connections that hold firmer than screw-style terminals.

Download the free software to view readings, save historical data, and analyze performance over time. Having all of your data in one place means you can troubleshoot and create predictive maintenance plans without needing to walk the floor and open enclosures to perform inspections. Saving historical data reduces maintenance costs because you can better predict when equipment should be replaced. Set alarm conditions, so you're alerted if a particular reading is too high or low. All power supplies are compatible with common Ethernet communication standards—check on them from anywhere without additional measuring equipment or sensors.

All of these power supplies use switching regulation, which means they produce the stated voltage despite fluctuations in your input power and the power being drawn by your system, and they won’t become too hot. They’re also SEMI F47 compliant, so they meet standards for maintaining output voltage when input voltage dips. This is commonly known as voltage sag immunity.

If you exceed the maximum voltage, temperature, or load, these power supplies protect both the power supply and the connected equipment. They also meet the voltage requirements for use in a PELV (protected extra low voltage) circuit.

Rated IP20, these power supplies prevent your fingers from touching internal components and accidentally shocking yourself. They're UL and C-UL Listed, TUV Rheinland Certified, and CE Marked so you know they meet stringent safety standards. With an NEC Class 2 and LPS output, if something fails inside the power supply, these limit the risk of electrical shock.

Output Peak Current—Power supplies with an output peak current briefly boost power above their maximum operating current for starting motors, actuating solenoid valves, and other applications that require a higher starting current than their operating current.

Maximum Output Noise Peak-to-Peak—Maximum output noise is also known as ripple noise. The lower the value, the less interference the power supply creates. For most applications, a value over 100mVpp isn’t a problem. However, when using to power extremely sensitive electronics, such as audio equipment and high-precision measuring and testing equipment, you’ll want an output noise around 5mVpp or less.

Power Factor @ Voltage—Power factor shows how effectively a power supply draws AC power from the main electrical supply. The higher the power factor—up to a maximum score of 1—the lower your operating cost.

Efficiency @ Voltage—Efficiency describes how good a power supply is at converting the AC power it draws from your main electrical supply into DC power. High-efficiency power supplies cost less money to operate and produce less heat, meaning cooler temperatures in your electrical cabinet.

	Output
	Voltage, V DC	Voltage Adjustment Range, V DC	Current, amp	Peak Current, amp	Peak Current Duration, sec.	Power, W	Max. Noise Peak-to-Peak, mV DC	Power Factor @ Voltage	Efficiency @ Voltage	Max. Transmission Distance, ft.	Ht.	Wd.	Dp.	Certification	Specs. Met		Each
Single Phase—100-240V AC Input Voltage







				Spring-Clamp-Terminal Input and Output Connection

				24	21.6 to 28	5	6	3	120	150	0.9 @ 230V AC	90% @ 115V AC 92% @ 230V AC	325	3.54"	2.17"	3.48"	UL Listed C-UL Listed CE Marked TUV Rheinland Certified	SEMI F47	5553N44	0000000


				24	21.6 to 28	10	15	3	240	140	0.9 @ 230V AC	91% @ 115V AC 93% @ 230V AC	325	4.93"	1.5"	4.7"	UL Listed C-UL Listed CE Marked TUV Rheinland Certified	SEMI F47	5553N55	000000
				24	21.6 to 28	20	30	3	480	130	0.9 @ 230V AC	92% @ 115V AC 94% @ 230V AC	325	4.93"	2.36"	4.7"	UL Listed C-UL Listed CE Marked TUV Rheinland Certified	SEMI F47	5553N66	000000
				24	23 to 24.1	3.75	—	—	90	300	Not Rated	86% @ 115V AC 87% @ 230V AC	325	3.54"	2.17"	3.48"	UL Listed C-UL Listed CE Marked TUV Rheinland Certified	SEMI F47	5553N33	000000