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MIL-PRF-17773 Switches, Bus Transfer, Electric Power Automatic And ManualThis specification covers the Automatic Bus Transfer Switch \(ABT\) \(see 6.4.1\) and the Manual Bus Transfer Switch \(MBT\) \(see 6.4.13\), herein referred to as ABT, MBT, or switch\(es\), for use on surface and submarine Naval vessels. Unless otherwise specified herein, this specification applies to both ABTs and MBTs. Requirements for Static or Solid State ABTs \(SABTs\) are not defined in this specification. MIL-PRF-32150 specifies requirements for SABTs.

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MIL-PRF-17773C(SH)

1.3 Part or identifying number (PIN). PINs to be used for switches acquired to this specification are created as

follows: (see 1.2.1 through 1.2.6 for PIN Code designations)

Special

Current Rating

Cabinet

Specification

Hyphen

Voltage

Frequency

Number

Feature

(maximum)

Integrity

Prefix

17773

600

The example above (M17773-4A01S600D) is for a 450-V, 60-Hz, instantaneous and normal seeking, special

feature, 600-amp maximum current rating, drip-proof ABT.

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This

section does not include documents cited in other sections of this specification or recommended for additional

information or as examples. While every effort has been made to ensure the completeness of this list, document

users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this

specification, whether or not they are listed.

2.2 Government documents.

2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a

part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are

those cited in the solicitation or contract.

FEDERAL STANDARDS

FED-STD-595-26307

Colors Used in Government Procurement

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-S-901

Shock Tests, H.I. (High-Impact) Shipboard Machinery, Equipment, and

Systems, Requirements for

MIL-E-917

Electric Power Equipment Basic Requirements

MIL-E-2036

Enclosures for Electric and Electronic Equipment

MIL-DTL-2212

Contactors and Controllers, Electric Motor AC or DC, and Associated

Switching Devices

MIL-DTL-3661

Lampholders, Indicator Lights, Indicator Light Housings, and Indicator

Light Lenses, General Specification for

MIL-L-3661/38

Housings, Indicator Light, Style LH80

MIL-L-3661/54

Lenses, Indicator Light, Style LC40

MIL-L-3661/62

Lampholder, Lights, Indicator (Housing), Style LH95, (for D.C.

Applications)

MIL-L-3661/63

Lampholder, Lights, Indicator (Housing), Style LH96

MIL-L-3661/64

Lampholder, Lights, Indicator (Housing), Style LH97

MIL-L-3661/65

Lampholder, Lights, Indicator (Housing), Style LH98

MIL-DTL-15024

Plates, Tags, and Bands for Identification of Equipment, General

Specification for

MIL-P-15024/5

Plates, Identification