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SF50 Technical Specifications Lowest exposure protection - Compatible with all Current Technology MasterPLAN facility-wide suppression filter system products
FEATURES
*Small in footprint yet amazingly powerful, Current Technology's economical SF50 effortlessly protects branch panels with upstream protection or primarily sensitive loading. Standard SF50 features include:

Seamless technology: Proprietary design concept integrates three key suppression and filtering components -- polypropylene capacitors, non-linear voltage dependent metal oxide varistors (MOVs) and precise component geometry -- for maximum performance and reliability.

Superior internal construction: All suppression filter components are bolted to corrosion-resistant tin-plated copper bus bar

Status indicators: Neon status indicators indicate suppression and overcurrent status

Test point: Diagnostic ten mode test point allows easy DTS-2 Diagnostic Test Set connection

Warranty: Five Year Product Warranty
INDUSTRY STANDARDS CERTIFICATION

standard

description

UL 1449

Underwriters Laboratories standard that establishes requirements for surge suppression safety and performance. Commonly recognized as a benchmark test for product comparison

UL 1283

Underwriters Laboratories standard dictating requirements for electromagnetic interference (EMI) filters installed on, or connected to, 600V or lower potential circuits installed in accordance with the National Electrical Code. Also covers filters used to attenuate unwanted high frequency signals generated from electromagnetic sources

CUL

Canadian version of Underwriters Laboratories

NEMA LS-1

The specification format guideline published by the National Electrical Manufacturers Association for specifiers and customers investigating Low Voltage Surge Protection Devices
STANDARD MODEL NUMBERS
SF50-120/240-2G SF50-120/240-3GHD
SF50-120/208-3GY SF50-240-3D
SF50-277/480-3GY SF50-480-3D
SF50-347/600-3GY SF50-600-3D

Contact factory for other voltages and configurations. Add option suffix(es) as required.

SINGLE PULSE SURGE CURRENT CAPACITY

Protection mode

Single pulse surge current
capacity per mode

Line-to-Neutral

>50,000 amps

Line-to-Ground

>50,000 amps

Neutral-to-Ground

>50,000 amps

Line-to-Line

>100,000 amps

Per Phase

>160,000 amps

In compliance with NEMA LS 1-1992, paragraphs 2.2.7, 2.2.9 and 3.9, Current Technology suppression filter systems are single pulse surge current tested in all modes at currents up to 150% of the product design rating by an industry-recognized independent test laboratory. Single pulse surge current capacities of 200,000 amps or less are established by single-unit testing of all components within each mode. Due to present industry test equipment limitations, single pulse surge current capacities over 200,000 amps are established via testing of individual components or sub-assemblies within a mode.

REPETITIVE SURGE CURRENT CAPACITY

Protection mode

Minimum tested impulses per mode

Line-to-Neutral

>3,000

Line-to-Ground

>3,000

Neutral-to-Ground

>3,000

Line-to-Line

>3,000

Per ANSI/IEEE C62.41-1991 and ANSI/IEEE C62.45-1992, all Current Technology suppression filter systems are repetitive surge current capacity tested in every mode utilizing a 1.2 X 50m sec 20KV open circuit voltage, 8 X 20 m sec 10 KA short circuit current Category C3 bi-wave at one minute internals without suffering either performance degradation or more than 10% deviation of clamping voltage at a specified surge current.

EMI/RFI NOISE REDUCTION VALUES

Multiple unit installation

Frequency

Single unit installation

51 dB

100 KHz

34 dB

94 dB

1 MHz

51 dB

114 dB

10 MHz

54 dB

120 dB

100 MHz

48 dB

All Current Technology suppression filter systems EMI-RFI noise rejection or attenuation values are in compliance with test and evaluation procedures outlined in NEMA LS 1-1992, paragraphs 2.2.11 and 3.11.

MAXIMUM CONTINUOUS OPERATING VOLTAGE (MOV)

Voltage MCOV

Voltage MCOV

120V 150V

277V 320V

240V 275V

480V 600V

All Current Technology suppression filter systems maximum continuous operating voltages are in compliance with test and evaluation procedures outlined in NEMA L 1-1992, paragraphs 2.2.6 and 3.6.

TYPICAL VOLTAGE CLAMPING DATA

Voltage

Protection Mode

A3 Ringwave

B3 Ringwave

B3/C1 Comb. Wave

C3 Comb. Wave

120/208

L-N

210/250

260/310

370/410

450/775

120/208

L-G

340/360

360/430

360/410

440/775

120/208

N-G

240/240

290/290

390/390

550/550

120/208

L-L

360/450

460/550

680/750

750/1400

277/480

L-N

420/470

470/510

770/800

900/1200

277/480

L-G

720/750

750/800

740/800

860/1100

277/480

N-G

450/450

550/550

780/780

1000/1000

277/480

L-L

700/800

750/850

1440/1525

1620/2000

All Current Technology suppression filter systems clamping voltages are in compliance with test and evaluation procedures outlined in NEMA LS 1-1992, paragraphs 2.210 and 3.10. Values following slash (/) indicate clamping voltage data for models with integral fused disconnect (DF) option

MECHANICAL SPECIFICATIONS
Connection method Parallel
Enclosure type/mount NEMA 4X/surface
Temperature operating range -40C to 60C
Humidity operating range 5% - 95% non-condensing
Dimensions 11.69"Hx8.40"Wx7.94"D
Weight 18 lbs.
OPTIONS

Option

Order Suffix

Fuse block
-BF
Double form "C" dry contacts
-FCC
DTS-2 Diagnostic Test Set
-DTS
Remote StatusWatch
-RSV
Remote StatusWatch with counters
-RSWC
Remote Alarm Panel (monitors 1 unit)
-RAP1
Remote Alarm Panel (monitors 1-5 units)
-RAP5
Remote Alarm Panel (monitors 1-12 units)
-RAP12
All StatusWatch diagnostic monitoring options include double form "C" dry contacts, audible alarm, alarm silence/test and status indicator lights.
Ask an Engineer if you have any questions regarding this or other Current Technology products.

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For more information about these or any other surge protection products or to speak with one of our sales reps, please contact us.

Tel: 407-380-9200 Fax: 407-380-3911 Email: jwest@psihq.com

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