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EDCO Transient Voltage Surge Suppresssion
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PHC Series

Base Sold Separately


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Power Amplifier, Security
and Alarm Protection

The PHC Series is designed to protect two pairs of wires specifically for alarm and security systems where operating currents can be as high as 5 amps. Electrically, the PHC Series is a rugged series hybrid implementing a staged complement of MOVs, copper wound inductors and Silicon Avalanche Diodes. This design reduces series resistance to 0.2 Ohms per pair. These products are intended to mate with a Buchanan model PCB1B female terminal connector.

The PHC Modules plug into a base assembly (PCB1B). The base assembly can be mounted to any flat surface, and should be located as close as practical to the protected equipment. Terminal 1 and/or Terminal 10 should be connected to Building Approved Ground with 12 or 10 gauge solid wire.

FEATURES
• Lightning Protection for Low-Voltage Signal Lines
• Three-Stage Protection
• Differential Protection
• Common Mode Protection
• Plug-in Module
• Automatic Recovery
• Fast Response Time
• Continuous Current up to 5 Amps
• UL 497B Listed
UL 497B


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SPECIFICATIONS
Peak Surge Current 5kA (8 x 20µs*)
Occurrences at 2kA 50 typical
Response Time ‹1 Nanosecond
Voltage Clamp 15, 20, 30, 43, 60, 100 or 150V
Series Resistance 0.2 ohms total (per pair)
Series Inductance 136µh total (per pair)
Temperature Range –40°C to +85°C
Weight 8 oz.
Acceptable Wire Sizes 26 to 10 AWG
*8 x 20 microsecond waveform is standard test waveform.


DIMENSIONS
PHC Series Module


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TERMINAL ASSIGNMENTS
PCB1B


APPLICATION PART #
24V Horn, Strobe, Bell:
PHC-043 & PCB1B
70V Speaker Lines:
PHC-SP70 & PCB1B


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ORDERING INFORMATION
PHC