FURSE_Lightning protection device FURSE_ ESP 12 DC、ESP24 DC、ESP36 DC、ESP48 DC
Product No：Pro2009414104814
Product Model：ESP 12 DC、ESP24 DC、ESP36 DC、ESP48 DC
UpdateTime：
Views：1347
Details：
Advanced protector for DC supplies and DC power distribution systems. Protection for 12, 24, 36 and 48V DC systems.
For low current applications, see the H series (4A) protectors here, E series (1.25 A) or D series (300mA)
Application
Use on DC power distribution systems to protect connected electronic equipment from transient over voltages on the DC supply, eg DC fed communications or control equipment.
Features and benefits
Low let-through voltage between all sets of conductors(positive to negative, positive to earth and negative to earth).
Repeated protection in lightning intense environments with 20 years predicted lifetime.
Visual indication of protector status.
Advanced pre-failure warning so you need never be unprotected.
Remote indication facility allows pre-failure warning to be linked to a building management system, buzzer or light.
Robust steel housing. Simple parallel connection.
Base provides ultra low inductance earth bond to metal panels.
Compact size for installation in the power distribution board.
Maintenance free.
Installation
Install in parallel, within the power distribution board or directly on the supply feeding the equipment.
At distribution boards, the protector can be installed 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 positive, negative and earth. On supplies over 100 amps, phase/live connecting leads should be fused with either 63 or 100 amp high rupture capacity (HRC) fuses, a switch fuse, MCCB or type"C"MCB. 
Parallel connection of ESP 48 DC.
Suitable accessories
If the protector cannot be incorporated within the panel, use the WBX 3 enclosure.
Electrical specification
|
|
ESP 12 DC |
ESP24 DC |
ESP36 DC |
ESP48 DC |
|
Nominal voltage (RMS) |
12V |
24V |
36V |
48V |
|
Working voltage (RMS) |
9-15V |
18 - 30V |
27 - 45V |
36 - 60V |
|
Current rating (supply) |
Direct connection to supplies up to 100A Connection via series fuses to supplies greater than 100A See installation instructions | |||
|
Leakage current (no earth) |
<250µA |
<250µA |
<250µA |
<250µA |
|
Indicator circuit current |
<10mA |
<10mA |
<10mA |
<10mA |
|
Volt free contact* -current rating -nominal voltage (RMS) |
Screw terminal -1A 250V |
Screw terminal 1A 250V |
Screw terminal 1A 250V |
Screw terminal 1A 250V |
Transient specification
|
|
ESP 12 DC |
ESP24 DC |
ESP36 DC |
ESP48 DC |
|
Let-through voltage (all conductors) 6kV 1.2/50µs open circuit voltage 3kA 8/20µs short circuit current to: BS 6651:1999 Appendix C, Cats C-Low & B-High IEEE C62.41 - 1991² Location Cats C1 & B3 SS CP 33:1996 Appendix F AS 1768 - 1991 Appendix B, Cat B UL1449 mains wire-in |
<120V |
<120V |
<120V |
<120V |
|
Maximum surge current² |
20kA |
20kA |
20kA |
20kA |
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 12 DC |
ESP24 DC |
ESP36 DC |
ESP48 DC |
|
Temperature range |
-25°C +70°C |
-25°C +70°C |
-25°C +70°C |
-25°C +70°C |
|
Connection type |
Screw Terminal |
Screw Terminal |
Screw Terminal |
Screw Terminal |
|
Conductor size (stranded) |
16mm³ |
16mm² |
16mm² |
16mm² |
|
Earth connection |
Screw Terminal |
Screw Terminal |
Screw Terminal |
Screw Terminal |
|
Volt free contact |
Connect via screw terminal with conductor up to 2.5mm² (stranded) | |||
|
Weight -unit -packaged |
0.6kg 0.7kg |
0.6kg 0.7kg |
0.6kg 0.7kg |
0.6kg 0.7kg |
|
Dimensions |
 | |||
Download：
ESP-DC.pdf 