Brick Wall

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20 Amp Panel Mount Surge Protector

This version of the Brick Wall line of surge suppressor/line filters is a panel-mounted, 20amp unit. Allowing protection for an entire 20 amp circuit, this unit's applications range from fire alarm and security system sub-panels to dedicated computer room and home theater circuits.

  • Made in the USA
  • Connections: (4) #8, 30amp barrier strip; Ground, Neutral, Line, Load
  • Self-test circuit w/ visual indicator
  • 0.08" thick aluminum heat diffuser chassis


Outlets Available None, this unit has a terminal strip for connection.
Load Ratings 20A at 120 volts, single phase, 50-60 Hz; full load regulation 1%.
Endurance Test 1,000 surges of 6,000 volts, 3,000 amperes, SRV <400 volts, no failures, L-N (ground wire protection) mode, U.S. Gov't. Mode 1.
Limiters Series surge reactor current limiter; cascaded, auto-tracking dual polarity voltage limiters; dual pulse inverters. Parameters optimized for switch-mode power supply protection.
Clamping Voltage Onset 172 volts nominal; 2 volts above peak line voltage (auto-tracking).
EMI/RFI Filter Response (bi-directional, wave tracking): With 50 ohm Rg load: 3db at 5kHz; 26dB at 100kHz; 38dB at 300kHz.
Let-Through Slew Rate 5,000 volt/microsecond disturbance reduced to 28v/microsecond within AC power wave envelope, and less than 10v/microsecond outside the power wave envelope.
Maximum Applied Surge Pulse Joule Rating Unlimited rating (due to surge current limiting) (8x20microsecond).
Maximum Applied Surge Pulse Voltage 6,000 volts (1.2 x 50 microseconds) (Industry Standard rating).
Maximum Applied Surge Pulse Current >100,000 amperes (unlimited due to current limiting) (8 x 20 microseconds).
Endurance, C62.41-1991 (formerly IEEE 587) Category B3 (C1) pulses 2kv>100,000; 4kv>10,000; 6kv>1,000 (NRTL verified).
Dimensions 10" H x 10" W x 4" D
Weight 10.6 lbs.