BS4418-2

BS44182 Electromagnetic Relay
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Datasheet. BS4418-2 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

2a single mounting facility

Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

5.450in. ⁓5-29/64"

Center To Center Distance Between Mounting Facilities Parallel To Length
The distance between the center of one mounting facility and the center of the adjacent mounting facility parallel to the length.

1.250in. single mounting facility

Center To Center Distance Between Mounting Facilities Parallel To Width
The distance between the center of one mounting facility and the center of the adjacent mounting facility parallel to the width.

1.250in. single mounting facility

Overall Diameter
A measurement of the longest straight line across a circular cross-sectional plane.

2.480in. ⁓2-31/64"

Environmental Protection
The environmental elements or conditions that an item is designed or protected to resist or withstand satisfactorily.

hermetic

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

model RTC2

Winding Quantity
The number of individual /not electrically connected/ windings.

1

Coil Quantity
The number of coils included on the item.

1

Winding Dc Resistance Rating
The measured opposition to the flow of direct current offered by the item winding.

700.0 ohms single winding

Duty Type
Indicates the type of duty provided.

continuous

Mounting Facility Type And Quantity
Indicates the type and number of facilities by which the item is mounted.

4 threaded stud single mounting facility

Pile-up Main Contact Form Arrangement
The number and combination(s) of the basic contact forms,in the order of assemblage,which make up the switching structure of the pile-up main contacts.

2A1C

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.138in. single mounting facility ⁓9/64"

Mounting Facility Pattern
The general configuration and relative position of the facilities provided for mounting the item.

rectangular single mounting facility

Operating Voltage Rating And Type At Specified Temp
The amount and type of voltage required at designated temperature to be applied to the input or energizing element of the item to ensure normal operation of the switching elements.

48.0 volts dc 25 deg celsius single winding

Main Contact Load Current Rating At Maximum Rated Voltage
The amount of current the main contacts are rated to make or break at maximum rated voltage,with a specified load.

4.0 amperes ac resistive load

Main Contact Maximum Voltage Rating In Volts
The highest voltage at which the main contacts are rated for normal operation,expressed in volts.

120.0 ac

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unc single mounting facility

Terminal Type And Quantity
Indicates the type and number of terminals for providing electrical connection.

7 standard tube base contacts

Terminal Type And Quantity
Indicates the type and number of terminals for providing electrical connection.

2 standard tube base energizing element

Answers.

What class is the thread series?

Unc single mounting facility

What is the thread class?

2a single mounting facility

What is the NSN for BS4418-2?

5945-00-226-4649

How is this classified for shipping?

Schedule B number: 8536490050
Relays, electromechanical, with contacts rated at less than 10 a, for a voltage exceeding 60 v but not exceeding 1000 v

What's the federal classification of BS4418-2?

FSC 5945 ⁓ Relays and solenoids

Excluding contractors.

NSN 5945-00-226-4649 RELAY,ELECTROMAGNETIC

Used on model rtc2. unc single mounting facility thread series 5.450" overall length 2a single mounting facility thread class

NIIN
002264649
NIIN Date
01/01/63
Schedule B
8536490050 
Name Code
32512
FIIG
A03300
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. A2096244 Cage 28527
2. 2096244 Cage 28527

Major End Users Countries and entities

  • - New Zealand 

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Similar by Design Other relays with similar characteristics

Nothing similar to this part number was found in our inventory

BS4418-2 / Relay,electromagneticWhat is the formal definition of this item?

A relay which is actuated by the effect of a magnetic field developed by the current in its energizing coil(s). includes solenoid and armature types. excludes contactor, magnetic; relay, meter movement; relay, motor driven; relay, reed; relay, resonant reed; relay, rotary; and switch, stepping.