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Branch Panel Protection

The Surge Free 150M, 125M, & 90M offer powerful modular protection at the branch panel. It is ideal when extensive diagnostics are not required but brute force is a #1 priority. These heavy-duty protectors are used when a room full of electronics or an entire floor of a facility is subject to damage, errors or downtime resulting from external, natural or man-made overvoltages. Twenty-year, no-nonsense warranty.



  • I peak: 160,000A/Phase (150M)
                 120,000A/Phase (125M)
                 80,000A/Phase (90M)
Filter Attenuation MIL STD 220A (50 Ohm):
  120VAC 240VAC 277VAC 480VAC
-30db 100kHz 25kHz 80kHz 80kHz
-40db 200kHz 100kHz 180kHz 180kHz
-50db 280kHz 180kHz 210kHz 250kHz
-60db 310kHz 200kHz 390kHz 390kHz
  • Field-replaceable modules.
  • Front panel LEDs for status indication.
  • Audible fault alarm with mute switch. (Optional)
  • Easy installation - 30 minutes or less.
  • Surge protected remote relay contacts.
  • All modes protected: L-G, L-N, L-L, N-G.
  • NEMA 12, Powder Coated Steel Enclosure.

Surge Current/Phase (8/20s)150M:

1 Event - 160kA. 10,000 Events - 6kA

Surge Current/Phase (8/20s)125M:

1 Event - 120kA. 10,000 Events - 4.5kA

Surge Current/Phase (8/20s)90M:

1 Event - 80kA. 10,000 Events - 3kA
Status Indicators: Green and Red LED Indicators
Protected Dry Contacts
Modes of Protection: L-N, L-G, L-L, N-G
Operating Altitude: 13,000ft. (4000m)
Temp. (Operating/Storage): -40 to +70C/-40 to +85C
Enclosure: NEMA 12, 14 gauge steel, Powder Coated
Cable Connection: #12 AWG Cable
Dimensions: 8" x 8" x 4" (203 x 203 x 120mm)
Mounting: 8.75" x 6"/.313" ID - 4 holes
(222 x 152mm/7.9mm ID) -4 holes
Weight: 11 lbs. (5kg) for 150M
10 lbs. (4.588kg) for 125M
9 lbs. (4.1kg) for 90M


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Last Updated 03/22/13