Honeywell Control Systems Ltd. · Electronic Components
4TL1-1
Switch, Toggle
Part Number4TL1-1
ManufacturerHoneywell Control Systems Ltd.
LifecycleStocked
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-660-3952 (NSN)
Federal Item NameSWITCH,TOGGLE
Federal Supply Class5930 — Switches
Bushing Length0.455 INCHES MINIMUM AND 0.485 INCHES MAXIMUM
Nonpile Up Contact Arrangement4 POLE, DOUBLE THROW, THREE POSITIONS MAINTAINED SINGLE SWITCH UNIT
Contact Load Current Rating At Max20.000 AMPERES RESISTIVE DC AND 12.000 AMPERES INDUCTIVE DC AND 5.000 AMPERES LAMP DC AND 15.000 AMPERES RESISTIVE AC AN
Test Data Document81349-MIL-S-3950 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DAT
Overall Width1.660 INCHES MAXIMUM
Body Width1.660 INCHES MAXIMUM
Body Height0.940 INCHES MINIMUM AND 0.980 INCHES MAXIMUM
Actuator StyleROUND
Inclosure TypeFULLY INCLOSED
Overall Length1.340 INCHES NOMINAL
Features ProvidedACTUATOR SEAL
Vendor Part NumbersMS24525-21
Cancelled NSN5930-01-062-2500 (cancelled)
RohscompliantY-EX
Hazardousfalse
RohsphthalatescompliantYES
Switch MountingPanel Mount
Product RangeTL Series
IscanonicalY
Contact Current Max15 A
Contact Configuration4PDT
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
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is 4TL1-1 available?
We can source 4TL1-1 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 4TL1-1 by Honeywell Control Systems Ltd. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4TL1-1 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 4TL1-1?
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 4TL1-1?
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.