● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
Electro Optical Industries  · Electronic Components

401H

Wattmeter — Test Instruments

Part Number401H
ManufacturerElectro Optical Industries
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameWATTMETER
Federal Supply Class6625 — Test Instruments
Overall Length18.000 INCHES NOMINAL
Measurement Range+1.9 TO 5.0 MICRONS SINGLE INDICATOR SINGLE RANGE
Operating Voltage Rating In Volts110.0 AC MINIMUM AND 220.0 AC MAXIMUM
Circuit Current For Which DesignedAC
Display TypeLIGHT EMITTING DIODE (L.E.D.).
Power SourceEXTERNAL
Frequency Rating60.0 HERTZ NOMINAL
Indicator TypeDIGITAL DISPLAY
Overall Diameter5.000 INCHES NOMINAL
Installation DesignPANEL OR RACK
ESD/EMICode A — ESD/EMI sensitive item
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RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant

Frequently asked

Is 401H available?
We can source 401H even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is 401H by Electro Optical Industries obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 401H has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like 401H?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for 401H?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.