The ESP 480M1 is a combined Type 1, 2 and 3 tested protector (to BS EN 61643) for use on mains power distribution systems primarily to protect connected electronic equipment from transient overvoltages on the mains supply, e.g. computer, communications or control equipment.
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).
- A full-mode design can handle partial lightning currents and allow the 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.
- A remote indication facility allows pre-failure warnings to be linked to a building management system, buzzer, or light.
- Changeover active volt-free contact enables the protector 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).
- Base provides ultra-low inductance earth bond to metal panels.
- Compact size for installation in the power distribution board.
Installation
- Install in parallel, within the power distribution board or directly (via fuses) onto the supply feeding equipment.
- At distribution boards, the protector can be installed on the load side of the incoming isolator or the closest outgoing way to the incoming supply.
- Connect, with very short connecting leads, to phase(s), neutral and earth.
Specifications
- Standards: IEC 61643-11
- 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): 277 V
- Voltage Protection Level ( Up): 680 V
- Maximum Continuous Operating Voltage (Uc): 350 V
- Temporary Overvoltage Test Value (UT): 402 V
- Discharge Current: Nominal 20 kA / I (max, 8 / 20 µs) 40 kA
- Short Circuit Withstand Icc: 25 kA
- Rated Frequency (f): 50 / 60 Hz
- Short-Circuit Protective Devices: ≤ 125 A
- Arrester Class: I / II / III
- Number of Protected Poles: 7
- Auxiliary Circuit Load: 250Vac – 1A
- Remote Indicator: Yes
- Wire Stripping Length: 17 mm
- Ambient Air Temperature: Operation -40 … +80 °C
- Product Net Width: 110 mm
- Product Net Height: 180 mm
- Product Net Depth / Length: 73 mm
- Product Net Weight: 1.0 kg
