Innovations in Communications™ Since 1955

155 Adams Avenue, Hauppauge, New York, 11788-3699 USA
Phone: 800-231-1414 or 631-231-1414 Fax: 631-231-1498 E-Mail:
(PK-543A, PK543AL)

 5-4-3 Wire Apartment Intercom Amplifier

Get the Wiring Instructions! SPEC SHEET

Application: The PK543A Power Pack Intercom Amplifier is a self contained unit not requiring an external amplifier. The PK543A is designed for use with most 3-4-5 wire apartment stations and provides amplification control and power circuits needed to operate a complete apartment intercom system. Voice volume control and tone volume control are easily adjustable through the screwdriver slot on the front panel.

Additional functions include multi-entrance operation with the PK502B, AC or DC door operation selectable by terminal connection with selectable delayed action door release set at the dip switch, post office door lock release and a tone signal to call remote stations. A steady or warble tone can be used to identify calling from the main entrance panel and a call button located at the suite entrance.

CT-543A: Plug-in Connector. Included with PK- 543A Amplifier

Station Compatibility:

PK-543A is compatible with these LEE DAN apartment intercom stations:

IR-081B IR-081C IR-081D

IR-082A IR-082C IR-082D

IR-103B IR-103E IR-104B IR-104E IR-105B IR-105E
IR-107A 1R-107AG IR-107C IR-107CG IR-107D IR-107DG 1R-147A
IR-203 IR-203E IR-204 IR-204E IR-205 IR-205E
IR-207 IR-207A IR-207B IR-207S IR-207SS

IR-307 IR-307A IR-307C IR-307D

IR-403 IR-404 IR-405 IR-413 IR-414 IR-415
IR-423 IR-424 IR-425 IR-433 IR-434 IR-435
IR-443 IR-443SS IR-444 IR-444SS IR-445 IR-445SS
IR-453 IR-454 IR-455  
IR-463 IR-463SS IR-464 IR-464SS IR-465 IR-465SS

Size: 5 1/2"H, 3"1/8W, 2"D.

Construction: Rugged ABS Plastic Casing

Amplification: Integrated circuit amplifier including amplifier with frequency response adjusted for best voice articulation

Call Tone: Integrated circuit oscillator

Door Release: AC or DC operation with selectable timing

P.O. Release: P.O door lock release

Connections: Polarized plug in type.

Power Req: 16 VAC, 10V AC

Mounting: Surface, or mount to the rear of specifically designed apartment entrance speaker panels.

Replaces: LEE DAN models: PK-543, PK-104B, PK-103B, PK-103A, PK-101A. Also replaces many other brands and models (call for info).


Since 1955, LEE DAN® has manufactured standard, modified and custom intercom systems for hundreds of thousands of homes, condos, co-ops, apartments, and commercial users. We take great interest in the special security needs of our customers, and great pride in the quality of our products!

Call LEE DAN® customer service department toll-free for more information.

With continuous product improvement, sizes and other specifications are subject to change without notice.


Other Intercoms 

This page was last updated July 20, 2012

 Phone: 800-231-1414 or 631-231-1414   Fax: 631-231-1498 E-Mail:

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