ABB Furse ESP 415D1 Surge Protector

Code: 7TCA085460R0105
  • Compact space-saving DIN housing
  • Repeated protection in lightning-intense environments
  • Standard: IEC 61643-11

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The ESP 415D1 is a Combined Type 1, 2 and 3 tested protector (to BS EN 61643) for use on three-phase mains power distribution systems primarily to protect connected electronic equipment from transient overvoltages on the mains supply, e.g. computer, communications or control equipment.

Innovative remote display options allow both protector and display to be mounted in their optimum position.

For use at boundaries up to LPZ 0 to protect against flashover (typically the main distribution board location, with multiple metallic services entering) through to LPZ 3 to protect sensitive electronic equipment.

Features & Benefits

  • Very low let-through voltage (enhanced protection to IEC/BS EN 62305) between all sets of conductors (phase to neutral, phase to earth, neutral to earth – Full Mode protection).
  • Full Mode design capable of handling partial lightning currents as well as allowing continual operation of protected equipment.
  • Innovative multiple thermal disconnect technology for safe disconnection from faulty or abnormal supplies (without compromising protective performance).
  • Three-way visual indication of protection status and advanced pre-failure warning, so you need never be unprotected.
  • ESP XXX D1R or ESP XXX D1R/LCD units (where XXX = 208, or 415, or 480) have a remote display that allows the protector to be mounted close to the incoming feed or distribution board with the display being mounted in a visible.
  • ESP XXX D1/LCD or ESP XXX D1R/LCD units have backlit LCD intelligent display offering clear status information that can be rotated for side mounting to facilitate short connecting leads.
  • Remote indication facility allows pre-failure warning to be linked to a building management system, buzzer or light.
  • Changeover active volt-free contact enables the protector to be used to warn of phase loss (i.e. power failure, blown fuses etc).
  • Flashing warning of potentially fatal neutral-to-earth supply faults (due to incorrect earthing, wiring errors or unbalanced conditions).
  • Through terminal facility allows series connection on low current supplies to eliminate high additive voltage associated with connecting leads on units installed in parallel.


Install in parallel, within the power distribution board or directly (via fuses) onto the supply feeding equipment. Can be installed in series for low current supplies – see installation instructions. For ESP D1R or D1R/LCD units, position remote display, ensure that the cable is long enough unimpeded within the cabinet, and allow a minimum of 60 mm behind the panel front (for the interconnection cable).

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 phases, neutral and earth.


  • Type of Low Voltage Distribution System: TN / TT
  • Suitable For: To protect systems against transient overvoltages or surges from lightning and electrical switching events
  • Nominal AC Voltage of the System (Uo): 240 V
  • Voltage Protection Level ( Up): 600 V
  • Maximum Continuous Operating Voltage (Uc): 280 V
  • Temporary Overvoltage Test Value (UT): 350 V
  • Discharge Current: Nominal 20 kA / I (max, 8 / 20 µs) 40 kA
  • Rated Frequency (f): 50 / 60 Hz
  • Short-Circuit Protective Devices: ≤ 125 A
  • Arrester Class: I / II / III
  • Connection Type: Screw Clamp
  • Auxiliary Circuit Load: 250Vac – 1A
  • Remote Indicator: Yes
  • Wire Stripping Length: 11 mm
  • CN8: 8536308000

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Title Size
ESP 415D1 Datasheet 979 KB

Additional information

Weight 0.09 kg