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MIL-PRF-55629


Circuit Breakers, Magnetic, Unsealed or Panel Seal, Trip-Free, General Specification For (w/Amendment 3) FSC: 5925

This specification covers the requirements and test procedures for single and multipole, trip-free, unsealed, magnetic circuit breakers with current ratings of 0.2 amperes to 100 amperes inclusive, up to and including 240 volts, 400 Hertz, 480 volts, 60 Hertz alternating current (ac) and 125 volts direct current (dc). These circuit breakers may also include auxiliary contacts for monitoring circuits. A voltage sensitive pole is also available in a four pole device. Panel seal mounts are available in 0.2 amperes through 50 amperes.



Points of Contact:

Circuit Protection Group Phone: 614-692-0548, 0506 Email: CircuitProtect@dla.mil
Document Downloads

Circuit Breakers, Magnetic, Unsealed or Panel Seal, Trip-Free, General Specification For (w/Amendment 3) Revision: E, Dated: 19 May 2020 File Name: prf55629.pdf, File Size: 450 kb


List of MIL-PRF-55629 Associated Specifications
Dated: 08 January 2008
File name: prf55629sup1.pdf, File Size: 19 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Single Pole (0.2 to 100 Amperes)
Dated: 19 May 2020
File name: prf55629ss1.pdf, File Size: 305 kb

Circuit Breakers, Magnetic, Unsealed Trip-Free, Single Pole, Auxiliary Contacts (0.2 to 50 Amperes)
Dated: 19 May 2020
File name: prf55629ss2.pdf, File Size: 307 kb

Circuit Breakers, Magnetic, Unsealed Trip-Free, Double Pole (0.2 to 50 Amperes)
Dated: 19 May 2020
File name: prf55629ss3.pdf, File Size: 332 kb

Circuit Breakers, Magnetic, Unsealed Trip-Free, Double Pole, Auxiliary Contacts (0.2 to 50 Amperes)
Dated: 19 May 2020
File name: prf55629ss4.pdf, File Size: 348 kb

Circuit Breakers, Magnetic, Unsealed Trip-Free, Three Pole (0.2 to 50 Amperes)
Dated: 19 May 2020
File name: prf55629ss5.pdf, File Size: 335 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Three Pole, Auxiliary Contacts (0.2 to 50 Amperes)
Dated: 19 May 2020
File name: prf55629ss6.pdf, File Size: 351 kb

Circuit Breakers, Magnetic, Low-Power Unsealed, Trip-Free, Series Trip, Single Pole, (0.2 to 30 Amperes)
Dated: 14 July 2021
File name: prf55629ss7.pdf, File Size: 238 kb

Circuit Breakers, Magnetic, Low-Power, Unsealed, Trip-Free, Series Trip, Single Pole, Auxiliary Contacts (0.2 to 30 Amperes)
Dated: 10 March 2010
File name: prf55629ss8.pdf, File Size: 84 kb

Circuit Breakers, Magnetic, Low-Power, Unsealed, Trip-Free, Series Trip, Single Pole, Auxiliary Contacts (0.2 to 30 Amperes) (Validation Notice)
Dated: 30 September 2019
File name: prf55629ss8not2.pdf, File Size: 17 kb

Circuit Breakers, Magnetic, Low-Power, Unsealed, Trip-Free, Series Trip, Single Pole, Auxiliary Contacts (0.2 to 30 Amperes) (Cancellation Notice)
Dated: 11 May 2021
File name: idprf55629ss8not3.pdf, File Size: 209 kb

Circuit Breakers, Magnetic, Low-Power, Unsealed, Trip-Free, Series Trip, Double Pole (0.2 to 30 Amperes)
Dated: 14 July 2021
File name: prf55629ss9.pdf, File Size: 239 kb

Circuit Breakers, Magnetic, Low-Power, Unsealed, Trip-Free, Series Trip, Double Pole, Auxiliary Contacts (0.2 to 30 Amperes)
Dated: 10 March 2010
File name: prf55629ss10.pdf, File Size: 98 kb

Circuit Breakers, Magnetic, Low-Power, Unsealed, Trip-Free, Series Trip, Double Pole, Auxiliary Contacts (0.2 to 30 Amperes) (Validation Notice)
Dated: 30 September 2019
File name: prf55629ss10not2.pdf, File Size: 17 kb

Circuit Breakers, Magnetic, Low-Power, Unsealed, Trip-Free, Series Trip, Double Pole, Auxiliary Contacts (0.2 to 30 Amperes) (Cancellation Notice)
Dated: 11 May 2021
File name: idprf55629ss10not3.pdf, File Size: 17 kb

Circuit Breakers, Magnetic, Low-Power, Unsealed Trip-Free, Series Trip, Three Pole (0.2 to 30 Amperes)
Dated: 10 March 2010
File name: prf55629ss11.pdf, File Size: 98 kb

Circuit Breakers, Magnetic, Low-Power, Unsealed Trip-Free, Series Trip, Three Pole (0.2 to 30 Amperes) (Cancellation Notice)
Dated: 11 May 2021
File name: idprf55629ss11not3.pdf, File Size: 227 kb

Circuit Breakers, Magnetic, Low-Power, Unsealed, Trip-Free, Series Trip, Three Pole, Auxiliary Contacts (0.2 to 30 Amperes)
Dated: 14 July 2021
File name: prf55629ss12.pdf, File Size: 260 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Single Pole, Front Mounted, Auxiliary Contacts, (1 to 100 Amperes)
Dated: 03 April 2010
File name: mil55629ss13.pdf, File Size: 51 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Single Pole, Front Mounted, Auxiliary Contacts, (1 to 100 Amperes) (Cancellation Notice)
Dated: 04 April 2025
File name: mil55629ss13not2.pdf, File Size: 54 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Single Pole, Back Mounted, (1 to 100 Amperes)
Dated: 03 April 2010
File name: mil55629ss14.pdf, File Size: 50 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Single Pole, Back Mounted, (1 to 100 Amperes) (Cancellation Notice)
Dated: 04 April 2025
File name: mil55629ss14not2.pdf, File Size: 54 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Two Pole, Front Mounted, Auxiliary Contacts, (1 to 100 Amperes)
Dated: 03 April 2010
File name: mil55629ss15.pdf, File Size: 63 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Two Pole, Back Mounted, (1 to 100 Amperes)
Dated: 03 April 2010
File name: mil55629ss16.pdf, File Size: 62 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Two Pole, Back Mounted, (1 to 100 Amperes) (Cancellation Notice)
Dated: 04 April 2025
File name: mil55629ss16not2.pdf, File Size: 54 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Three Pole, Front Mounted, Auxiliary Contacts, (1 to 100 Amperes)
Dated: 03 April 2010
File name: mil55629ss17.pdf, File Size: 70 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Three Pole, Back Mounted, (1 to 100 Amperes)
Dated: 03 April 2010
File name: mil55629ss18.pdf, File Size: 67 kb

Circuit Breakers, Magnetic, Unsealed, Trip-Free, Four Pole, Front Mounted, Auxiliary Contacts, (1 to 100 Amperes)
Dated: 03 April 2010
File name: mil55629ss19.pdf, File Size: 79 kb

Circuit Breakers, Magnetic, Panel Seal, Trip-Free, Series Trip, Single Pole (0.2 to 30 Amperes)
Dated: 14 July 2021
File name: prf55629ss20.pdf, File Size: 248 kb

Circuit Breakers, Magnetic, Panel Seal, Trip-Free, Series Trip, Double Pole (0.2 to 30 Amperes)
Dated: 14 July 2021
File name: prf55629ss21.pdf, File Size: 259 kb

Circuit Breakers, Magnetic, Panel Seal, Trip-Free, Series Trip, Three Pole (0.2 to 30 Amperes)
Dated: 14 July 2021
File name: prf55629ss22.pdf, File Size: 266 kb

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