Secondary Connectors

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FAA L-823, Class B

Efla’s Secondary Connectors are packed and delivered in kits including all the necessary parts for making the assembly on secondary cables or wires. Each Secondary Connector kit contains parts for a plug or a receptacle, resulting in a watertight post-installation connection.
Nominal rating: 20 A and 600 V

For two core cable, Styles 5 and 12
KD 501 –series (Plug)	KD 502 –series (Receptacle)

KD 501 and KD 502 for two-core cables:

Type	Conductor size	AWG	Cable diameter	in inches	Efla Type
Plug	1.5 – 2.5 mm²	16-14	8.5 – 13.5 mm	0,334 – 0,531	KD 501
Plug	4.0 – 6.0 mm²	12-10 / 8	11.5 – 18.0 mm	0,157 – 0,708	KD 501.1
Plug	4.0 – 6.0 mm²	12-10 / 8	8.5 – 13.5 mm	0,334 – 0,531	KD 501.2
Receptacle	1.5 – 2.5 mm²	16-14	8.5 – 13.5 mm	0,334 – 0,531	KD 502
Receptacle	4.0 – 6.0 mm²	12-10 / 8	11.5 – 18.0 mm	0,157 – 0,708	KD 502.1
Receptacle	4.0 – 6.0 mm²	12-10 / 8	8.5 – 13.5 mm	0,334 – 0,531	KD 502.2

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Special Secondary Connectors to be used on Approach Lines

ICAO AMD6 dictates that secondary connectors, installed on frangible approach
line masts, shall have means to guarantee that by-force disconnection,
in the event of an airliner crash on the approach line, is not taking place
in open air and thus igniting surrounding kerosene.
The KD501.X.AMD6 and KD 502.X.AMD6 have been designed for this
purpose and have a 27 mm long sleeve covering the connection.
The AMD6 types can only be used as a pair.

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For two single wires, Styles 4 and 11

KD 503 –series (Plug)	KD 503R –series (Receptacle)

Type	Conductor size	AWG	Wire diameter	in inches	Efla Type
Plug	1.5 – 2.5 mm²	16-14	2.8 – 4.0 mm (x 2)	0,110 – 0,157	KD 503
Plug	4.0 – 6.0 mm²	12-10 / 8	3.8 – 5.5 mm (x 2)	0,149 – 0,216	KD 503.1
Plug	4.0 – 6.0 mm²	12-10 / 8	2.8 – 3.4 mm (x 2)	0,110 – 0,133	KD 503.2
Plug	4.0 – 6.0 mm²	12-10 / 8	5.0 – 8.0 mm (x 2)	0,196 – 0,314	KD 503.3
Receptacle	1.5 – 2.5 mm²	16-14	2.8 – 4.0 mm (x 2)	0,110 – 0,157	KD 503R
Receptacle	4.0 – 6.0 mm²	12-10 / 8	3.8 – 5.5 mm (x 2)	0,149 – 0,216	KD 503R.1
Receptacle	4.0 – 6.0 mm²	12-10 / 8	2.8 – 3.4 mm (x 2)	0,110 – 0,133	KD 503R.2
Receptacle	4.0 – 6.0 mm²	12-10 / 8	5.0 – 8.0 mm (x 2)	0,196 – 0,314	KD 503R.3

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3-Pole Secondary Connector

KD3P	KD3R

Caution: Secondary connectors are interconnectable with KD3R. Please take necessary measures to avoid dangerous interchangeability with 3-pole connectors of other manufactures.

Type	Conductor size	AWG	Cable diameter	in inches	Efla Type
Plug	1.5 – 2.5 mm²	16-14	8.5 – 13.5 mm	0,334 – 0,531	KD 3P
Plug	4.0 – 6.0 mm²	12-10 / 8	11.5 – 18.0 mm	0,157 – 0,708	KD 3P.1
Plug	4.0 – 6.0 mm²	12-10 / 8	8.5 – 13.5 mm	0,334 – 0,531	KD 3P.2
Receptacle	1.5 – 2.5 mm²	16-14	8.5 – 13.5 mm	0,334 – 0,531	KD 3R.
Receptacle	4.0 – 6.0 mm²	12-10 / 8	11.5 – 18.0 mm	0,157 – 0,708	KD 3R.1
Receptacle	4.0 – 6.0 mm²	12-10 / 8	8.5 – 13.5 mm	0,334 – 0,531	KD 3R.2

MORE TECHNICAL DATA OF SECONDARY CONNECTORS