The ESP 415T1/12.5/TNS is a combined Type 1 and 2 tested Surge Protective Device SPD (to BS EN 61643) for use on the main distribution board, mainly where a structural Lightning Protection System (LPS) is employed, for equipotential bonding.
For use at boundaries up to LPZ 0 to protect against flashover (typically the main distribution board location) through to LPZ 2 to protect electrical equipment from damage.
Features & Benefits
- Enhanced protection (to IEC/BS EN 62305) offering low let-through voltage further minimising the risk of flashover creating dangerous sparking or electric shock.
- An indicator shows when the SPD protection modules require replacement.
- Pluggable module design (with anti-vibration locking clip) allows for simple replacement at end-of-life.
- A remote signal contact can indicate the protector’s status through interfacing with a building management system.
Application
- Use on three-phase mains supplies and power distribution systems for protection against partial direct or indirect lightning strikes.
- ESP 415T1/25/XXX versions for use with Class I or II LPS.
- ESP 415T1/12.5/XXX versions for use with Class III or IV LPS; or exposed overhead three-phase power lines where no LPS is fitted.
- ESP 415T1/X/TNS versions also cover TN-C-S earthing systems.
Installation
The SPD is to be installed in the main distribution board with connecting leads of minimal length. The protector should be fused and suitable for attachment to a 35 mm top-hat DIN rail.
Specifications
- Standards: IEC 61643-11
- Type of Low Voltage Distribution System: TN-S
- Suitable For: To protect systems against transient overvoltages or surges from lightning and electrical switching events
- Nominal AC Voltage of the System (Uo): 230 V
- Voltage Protection Level ( Up): 1.5 kV
- Maximum Continuous Operating Voltage (Uc): 275 V
- Temporary Overvoltage Test Value (UT): 337 V
- Discharge Current: Nominal 20 kA / Maximum 50 kA
- Short Circuit Withstand Icc: 50 kA
- Rated Frequency (f): 50 / 60 Hz
- Short-Circuit Protective Devices: ≤ 250 A
- Arrester Class: I / II
- Number of Protected Poles: 4
- Connection Type: Screw Clamp
- Auxiliary Circuit Load: 250Vac – 1A
- Remote Indicator: Yes
- Wire Stripping Length: 18 mm
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CN8: 8536308000
