ABB Furse ESP 240D-32A Surge Protector

Code: 7TCA085460R0322
  • Compact space-saving DIN housing
  • Repeated protection in lightning-intense environments
  • Working voltage (RMS) 200-280 V

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The ESP 240D-32A is a combined Type 1, 2, and 3 tested protector (to BS EN 61643) for use on low current (up to 10 or 32 A ) single-phase systems to protect connected electronic equipment from transient overvoltages on the mains supply, e.g., fire/intruder alarm panels.

For use at boundary LPZ 0 through to LPZ 3 boundaries 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).
  • 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.
  • Advanced status (DS) version has a remote indication facility to a BMS via an active changeover volt-free contact to show pre-failure warnings and potential phase loss (i.e. power failure, blown fuses, etc) and a flashing warning of potentially fatal neutral to earth supply volts.


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 (e.g. to, CCTV cameras or site lighting), the protector should be installed as close to where the cable leaves the building as possible.

Protectors should be installed either within an existing cabinet/cubicle or in a separate enclosure.


  • Nominal voltage – Phase-Neutral Uo (RMS)  240 V
  • Maximum voltage – Phase-Neutral Uc (RMS) 280 V
  • Maximum voltage – Neutral-Earth Uc (RMS) 255 V
  • Temporary Overvoltage TOV UT 350 V
  • Short circuit withstand capability 10 kA/50 Hz
  • Frequency range 47-63 Hz
  • Current rating (supply) 32 A or less
  • Max. backup fuse (see installation instructions) 32 A
  • Leakage current (to earth) Zero
  • Indicator circuit current < 10 mA
  • Volt free contact (DS versions only): Screw terminal
  • Temperature range -40 to +80 °C
  • Connection type Screw terminal – maximum torque 0.8 Nm
  • Conductor size (stranded) 6 mm2
  • Earth connection Screw terminal – maximum torque 0.8 Nm
  • Volt free contact (DS versions only) Connect via screw terminal with conductor up to 1.5 mm2 (stranded) – maximum torque 0.25 Nm
  • Degree of protection (IEC 60529) IP20
  • Case material FR Polymer UL-94 V-0
  • Weight: – Unit 0.23 kg.  Packaged 0.25 kg
  • Dimensions to DIN 43880 – HxDxW(8) 90 mm x 75 mm x 36 mm (2TE)
  • CN8: 8536304000

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Title Size
ESP 240D-32A Datasheet 524 KB

Additional information

Weight 0.09 kg