● 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
Ballantine Laboratories  · Electronic Components

311U9

Voltmeter — Test Instruments

Part Number311U9
ManufacturerBallantine Laboratories
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameVOLTMETER
Federal Supply Class6625 — Test Instruments
Scale Selection MethodSWITCH
Features ProvidedZERO ADJUSTER
Circuit Attachment Method And Quan2 CONNECTOR, RECEPTACLE
Style DesignatorRECTANGULAR OR SQUARE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Operating Voltage Rating In Volts115.0 AC NOMINAL AND 230.0 AC NOMINAL
Overall Width7.500 INCHES NOMINAL
Frequency Rating50.000 HERTZ MINIMUM AND 400.000 HERTZ MAXIMUM
Overall Length9.500 INCHES NOMINAL
Overall Height13.000 INCHES NOMINAL
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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 311U9 available?
We can source 311U9 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 311U9 by Ballantine Laboratories obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 311U9 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 311U9?
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 311U9?
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.