_____________________6. Circuit Breaker Shunt
 A. General A circuit breaker shunt is used to connect electrically several terminals on a circuit breaker. It is installable by means of screws.
 B. NSA939526 (Ref. Fig. 028)
R R R R  (1) P/N identification NSA939526 -04 C | | | | | ------ Type code : C = Folded terminal | | D = Insulated shunt with 1 attachment | | terminal at right end | | E = Insulated shunt with 1 attachment | | terminal at left end | | No code = Right terminal | | | ---------- Provisioning code : 02 to 20 = Terminal number | 00 = 1 m (39.37 in.) length | ------------------- Standard P/N
 (2) Provisioning code When provisioning code (02 to 20) is not available, it is possible to use code 00. In this case it is necessary to select the required length and cut the wire flush with the end terminals.
 ____NOTE : Strands must never protrude from the ends of the shunts
 (3) Connection arrangement (Ref. Fig. 028)

R Circuit Breakers - P/N Identification and Installation NSA939526 Figure 028

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 _____________
7. Cap NSA931326
 (Ref. Fig. 029)

 A. P/N identification
 NSA931326 A 2
 | | |
 | | ---- Color code : 2 = yellow
R  | | 8 = grey | | 4 = orange | | 0 = fluorescent green | | | --------- Type code | ------------------- Standard P/N
 B. P/N characteristics
 ____
NOTE : Yellow cap is used to prohibit the use of the circuit breaker. R Grey cap is used when not connected
 (1) Temperature Maximum operating temperature is 105 deg.C (221.00 deg.F)
 ________________
8. Connection table
 (Ref. Fig. 030)

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R Circuit Breakers - Cap - P/N Identification and layout R NSA931326 R Figure 029

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R Circuit Breakers - Connection Table R Figure 030

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 ________________________________________________
CIRCUIT BREAKER PLUG - DESCRIPTION AND OPERATION
 _______
1. General
 Circuit breaker plugs installed on aircraft have the codes that follow:
 -E0658 ____________________
2. Circuit Breaker Plug
 A. E0658 Receptacle
 (1) P/N identification
 E0658  A  12  D
 |  |  |  |
 |  |  |  ---------------- Size type code
 |  |  -------------------- Number of contacts
 |  ------------------------- Variant code

 ------------------------------- Standard P/N
 (2) P/N characteristics
 (a)
 Temperature Minimum operating temperature is -55 deg.C (-67.00 deg.F) Maximum operating temperature is +175 deg.C (+347.00 deg.F)

 (b)
 Contact arrangement code (Ref. Fig. 001)

 (c)
 Connection procedure For connection procedure (Ref. Connection Table paragraph).

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 Circuit Breaker Plug - Contact Arrangement and Torque Values
 E0658
 Figure 001

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 ________________
3. Connection Table (Ref. Fig. 002)

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 Circuit Breaker Plug - Connection Table
 Figure 002

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 __________________________________________________
RELAYS AND RELAY BASES - DESCRIPTION AND OPERATION
 _______
1. General
R R R  This chapter is about the description, installation and connections of the relays and relay bases. There are two types of relay connection: - By relay base. - Without relay base. 
The allocation tables that follow show the connection type for each relay installed on the aircraft. (Ref. Fig. 001, 002)
 ___________2. Relay Bases
 The relay bases used on aircraft have the codes that follow: E0219 NSA932805 E0247 NSA932815 E0249 NSA932816 E0250 NSA932818 E0251 NSA932823 E0311 NSA932825 E0673 NSA932827 E0745 NSA932829 E0746 NSA932833 NSA932838 NSA932844 NSA932847
 A. P/N Identification
 (1) Relay base by polarization keys

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R Relays and Relay Bases - Allocation Table Figure 001

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 Relays and Relay Bases - Allocation Table
 Figure 002

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 E0219 A  S U X U
 E0746 A  S Z Z Z
 E0745 A  S Z Z |
 | | | | | |
 | | | | | ---- Key 3 polarisation key
 | | | | |
 | | | | -------- Key 2 polarization key
 | | | |
 | | | ------------ Key 1 polarization key
　
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