Connect in-line with the power supply usually either
within the equipment panel (or for CCTV cameras, in an enclosure close
by), or on the fused connection that supplies equipment.
To protect equipment inside a building from transients
entering on an outgoing feed (eg to CCTV cameras or to site lighting)
the protector should be installed as close to where the cable leaves
the building as possible. Unless ready-boxed protectors should be installed
either within an existing cabinet/cubicle or in a separate enclosure.
Suitable accessories
If several ESP 120-5A or 16A or ESP 240-5A or 16A
protectors are to be installed together, or if one is in use alongside
Lightning Barriers for video or signal lines, these can be simultaneously
mounted and earthed on a CME kit and housed
in a suitable WBX enclosure.
Let through voltage (all conductors)¹
6kV 1.2/50µs open circuit voltage, 3kA 8/20µs short
circuit current to:
BS6651:1999 Appendix C, Categories C-law, and B-High
IEEE 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
390V
590V
4kV 1.2/50µs open circuit voltage, 2kA
8/20µs short circuit current to
370V
560V
2kV 1.2/50µs open circuit voltage, 1kA
8/20µs short circuit current
340V
520V
2.5kA 8/20µs to BS EN 60099-1:1994
380V
580V
6kV 1.2/50µs open circuit voltage,
500A short circuit current to:
BS6651:1999 Appendix C, Category A-High
UL1449 mains plug in
320V
480V
6V 0.5µs 100kHz ring wave, 500A to:
IEEE C62.41-1991² Location Category B3
AS 1768-1991 Appendix B, Category B
320V
480V
6kV 0.5µs 100kHz ring wave, 200A to:
IEEE C62.41-1991² Location Category A3
AS 1768-1991 Appendix B, Category A
290
460
Maximum surge current³
10kA
10kA
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.
