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Electronic Systems Protection

 furse
ESP 415 M2 & ESP 415 M4 Protectors with extra high maximum surge currents, for mains power supplies

Installation

Install in parallel, within the power distribution board, either on the load side of the incoming isolator, or on the closest outgoing way to the incoming supply. Connect with very short connecting leads, to phase(s), neutral and earth.

On supplies over 100 amps, phase/live connecting leads should be fused with a either a 63 or 100 amp high rupture capacity (HRC) fuses, a switchfuse, MCCB or type 'C' MCB.

Parallel connection to three phase star (4 wire and earth) supplies.
Parallel connection to three phase star (4 wire and earth) supplies.


Install within the distribution board, just after the incoming isolator (or on the first outgoing way). Live connecting leads should be fused on supplies exceeding 200A (ESP 415 M2) and 315A (ESP 415 M4).

Parallel connection of ESP 415 M1 or ESP 208 M1 to three phase star (4 wire and earth) supplies.


Suitable accessories

Where the protector can not be incorporated within the panel use the WBX M2 enclosure for the ESP 415 M2 or the WBX M4 for the ESP 415 M4.

PDF

ESP M2 M4 Brochure
Electrical specification

 
ESP 415 M2
ESP 415 M4
Nominal voltage (RMS)
415V
415V
Working voltage (RMS)
346 - 484V
346 - 484V
Frequency range
40 - 60Hz
40 - 60Hz
Current rating (supply)
-direct connection to supply
-connect via series fuses to supply
<200A
>200A
315A
315A
(See installation instructions
Leakage current (to earth)
<500µs
<1,000µs
Indicator circuit current
<20mA
<40mA
Volt free contact
-current rating
-nominal voltage (RMS)
Screw terminal
1A
250V
Screw terminal
1A
250V
Transient specification

 
ESP 415 M2
ESP 415 M4
Let-through voltage (all conductors)¹
6kV 1.2/50µs open circuit voltage, 3kA 8/20µs short cut current to:
BS 6651:1999 Appendix C, Categories C-low and B-High
IEE C62.41-1991² Location Categories C1 and B3
SS CP 33:1996 Appendix F
AS 1768-1991 Appendix B, Category B
UL1449 mains wire-in
590V
570V
4kV 1.2/50µs open circuit voltage, 2kA, 8/20µs short circuit current to:
IEC 1000-4-5:1995
560V
540V
2kV 1.2/50µs open circuit voltage, 1kA 8/20µs short circuit current
510V
480V
5kA 8/20µs to NFC 61-740
670V
650V
2.5kA 8/20µs to BS EN 60099-1:1994
580V
560V
6kV 0.5µs 100kHz ring wave, 500A to:
IEEE C62.41-199F Location Category B3
AS 1768-1991 Appendix B, Category B
490V
460V
Maximum surge current³
-between any two conductors
-total unit to earth
60kA
240kA
120kA
480kA


1 The maximum transient voltage let-through the protector throughout the test (+/-5%), phase to neutral, phase to earth and neutral to earth.
2 Formerly IEEE 587 and ANSI C62.41.
3 Tested with 8/20µs waveshape to BS 6651:1999 Appendix C. Note: The electrical system, external to the unit, may constrain the actual current rating achieved in a particular installation.
Mechanical specification

 
ESP 415 M2
ESP 415 M4
Working temperature
-40°C to +70°C
-40°C to +70°C
Connection type
Screw terminal
Screw terminal
Conductor size (stranded)
25mm²
50mm²
Earth connection
Screw terminal
Screw terminal
Volt free contact
Connect via screw terminal with conductor up to 2.5mm² (stranded)
Weight
-unit
-packaged
2.35kg
2.5kg
3.9kg
4.2kg
Dimensions
Mechanical specification

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