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EGPE65 Electronic Grade
Panelboard Extension

Technical Specifications

Easily mounts with most major brands of non-linear, six-wire panelboards – compatible with all Current Technology MasterPLAN suppression filter systems


No other manufacturer comes close to the innovative, cost effective and practical electronic panelboard alternatives offered by Current Technology. Logical EGPE Panelboard Extensions permit the quick and easy addition of Current Technology’s UL 1449 Listed suppression and UL 1283 Listed filtering to electric panelboards at the jobsite. Mounted at the top, bottom or adjacent to virtually any panelboard, EGPE Panelboard Extensions include the following standard features:

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


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


EGPE65-120/240-2G-F or S EGPE65-120/240-3GHD-F or S
EGPE65-120/208-3GY-F or S EGPE65-240-3D-F or S
EGPE65-277/480-3GY-F or S EGPE65-480-3D-F or S
EGPE65-347/600-3GY-F or S EGPE65-600-3D-F or S

Contact factory for other voltages and configurations. Add F for Flush mount or S for Surface mount plus option suffix(es).


Protection mode Single pulse surge current capacity per mode
Line-to-Neutral >65,000 amps
Line-to-Ground >65,000 amps
Neutral-to-Ground >65,000 amps
Line-to-Line >65,000 amps
Per Phase >130,000 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.


Protection mode

Minimum tested impulses per mode









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.


Multiple unit installation


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.


Voltage MCOV Voltage MCOV
120V 150V 277V 320V
240V 275V 480V 600V
277V 320V 600V 840V

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.


Voltage Protection Mode A3 Ringwave B3 Ringwave B3/C1 Comb. Wave C3 Comb. Wave
120/208 L-N 210 260 380 480
120/208 L-G 350 365 370 540
120/208 N-G 250 290 360 520
120/208 L-L 360 480 700 810
277/480 L-N 460 580 835 980
277/480 L-G 800 755 765 990
277/480 N-G 500 570 785 1050
277/480 L-L 805 1040 1555 1780

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 indicate typical clamping voltage data for models with integral fused disconnect (DF).


Connection method Parallel
Enclosure type/mount NEMA 1/surface or flush
Temperature operating range -40C to 60C
Humidity operating range 5% – 95% non-condensing
Dimensions 12.00″Hx20.00″Wx5.75″D
Weight 35 lbs.


Option Order Suffix
Double form “C” dry contacts -FCC
StatusWatch diagnostic monitoring -SW
StatusWatch with display event counters -SWC
DTS-2 Diagnostic Test Set -DTS
Remote StatusWatch -RSW
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.

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