The Model SSS-120/120VAC-AM was designed specifically as a
Primary Stage protection device for an isolated/floating (ungrounded)
single phase 120VAC feeder where all-mode (both Line-to-Line and Line-to-Ground protection)
is desired.
High-Energy MOV Primary Stage Protection for both Line-to-Line and Line-to-Ground
Equipped with 3/4" Conduit Offset Nipple for easy mounting to a Service Entrance Panel
Electrical Specifications
120 VAC (Line-to-Line) or (Line-to-Ground) Protection Levels
Maximum No Conduction AC Voltage = 140 Vrms
Maximum 1mA Conduction Voltage = 198 Vrms
Maximum single pulse energy = 600 Joules
Maximum single pulse current = 70,000 Amperes
Clamping evel = 360 Volt peak @ 500 Amperes
Mechanical & Temperature Specifications:
Length = 5 in.
Width = 5 in.
Depth = 4 in.
Weight = 1 lb.
Equipped with 3/4" Conduit Offset Nipple for easy mounting to a Service Entrance Panel
Operating Temperature Range: -40 to +70°C
Dimensions:
Functional Wiring Diagram:
Summary:
This unit is designed to protect a single isolated line pair AC Power feeder with a nominal voltage of 120VAC. This unit will protect in all modes. That is, differential
protection Line-to-Line and also each Line-to-Ground. This is a primary stage protector and would be connected at the Breaker / Distribution Panel before the power
is distributed throughout the Signal House or Case.
