ECONOMY CLASS

BRANCH PANEL PROTECTOR
Ipeak = 120kA


READY TO GO!
Easy Installation - less than 30 minutes
- Mount pre-tested SF120 to wall
- Connect cable to service panel
- Apply power - system is protected

20-Year Warranty


 

ANSI/IEEE C62.41-1991
Category B

SF120 (10235 bytes)

DESCRIPTION FEATURES
Designed for installation at a branch panel, the SF120 is a serious business, heavy duty protector. This cost conscious unit provides protection without the usual frills. A rugged unit that guards critical areas of a facility from the destructive effects of transients originating from both internal and/or external sources.

The SF120 employs multiple-fused surge current paths with built-in redundancy to insure the most effective method of transient overvoltage dissipation. In addition, each phase is monitored by 2 Green LED protection present indicators.

SF120 Data Sheets (96KB)
SF120 Engineering Specifications (20KB)
SF120 & 160 Installation Instructions (61KB)

  • Ipeak of 120,000 Amps per phase - brute force surge current handling.
  • Built-in redundancy - dual-level protection for reliable performance.
  • All modes protected, L-N, L-G, L-L, N-G.
  • Bipolar-bi-directional protection - eliminates lateral transient coupling.
  • Compact design - small put powerful.
  • Green LED protection present indicators.
  • Dependability - install it and forget it.
  • Warranty - 20 years.

CONFIGURATIONS:

MODEL RATED VOLTAGE DESCRIPTION

ENERGY ABSORPTION
(8/20s)
JOULES TOTAL

UL 1449 SURGE VOLTAGE (8/20us)
500A

SF120-120T 120/240VAC 1, 3W+GND 4,898 500
SF120-120Y 120/208VAC 3, 4W+GND, WYE 6,853 500
SF120-220Y 220/380VAC 3, 4W+GND, WYE 18,840 800
SF120-240Y 240/415VAC 3, 4W+GND, WYE 18,840 800
SF120-240D 240VAC 3, 3W+GND, DELTA 16,800 800
SF120-240DCT 240/120/120VAC 3, 4W+GND, HI-LEG 12,128 800/500
SF120-277Y 277/480VAC 3, 4W+GND, WYE 19,800 900
SF120-480D 480VAC 3, 3W+GND, DELTA 30,000 1500

ELECTRICAL SPECIFICATIONS

MAX. CONTINUOUS OPERATING VAC: 115%
RESPONSE TIME: <5 NANOSECONDS
MODES OF PROTECTION: L-N, L-G, L-L, N-G
SURGE CURRENT/PHASE (8/20s) - 1 EVENT: 120kA
SURGE LIFE/PHASE (8/20s) - 200 IMPULSES: 20kA
SURGE LIFE/PHASE (8/20s) - 20,000 IMPULSES: 6kA
Filter Attenuation (MIL STD 220A 50ohm): 120VAC 240VAC
-30db: 100kHz 25kHz
-40db: 200kHz 100kHz
-50db: 280kHz 180kHz
-55db: 310kHz 200kHz
PROTECTION PRESENT INDICATORS: GREEN LED PER PHASE
OPERATING ALTITUDE: 13,000 ft. (4000m)
TEMPERATURE (OPERATING/STORAGE): -40 to +70C/-40 to +85C
ENCLOSURE: NEMA 1
DIMENSIONS: 7.25" x 7.5" x 2.38"
MOUNTING: 6.5" x 6.5" / .22" ID - 4 HOLES
CABLE CONNECTION: 36" #12 AWG, 3/4" COMPRESSION CONNECTOR
SHIPPING WEIGHT: 6 lbs.

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2004 Sentinel Power Inc. All rights reserved.
Last Updated 10/14/10