Summary of Contents for Thomas & Betts furse ESP 120 D1
- Page 1 Installation instructions for mains wire-in protectors ESP D1, D1R, D1/LCD and D1R/LCD variants...
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Page 2: Table Of Contents
Installation instructions for mains wire-in protectors Introduction Key points of installation This document explains how to install Furse Electronic Install protectors very close to the power supply to be Systems Protectors for mains power supplies: protected, either within the distribution panel or directly Single phase ESP 120 D1 Single phase ESP 240 D1 Single... -
Page 3: Before Installation
Installation instructions for mains wire-in protectors Supply Rated Unit Voltage Connecting leads should be 10 mm multi stranded Voltage Range cable for parallel/shunt installation. For series installation, refer to section 6. ESP 120 D1 For parallel/shunt installation, keep the connecting leads as Phase to short as possible and ideally less than 25 cm (10 inches) in Neutral/Earth... -
Page 4: Installation
Installation instructions for mains wire-in protectors Installation Location Protectors need to be installed very close to the power supply to be protected. Usually the protector will be installed at a power distribution panel either inside it (Figure 1) or right next to it (Figure 2). ESP D1 protectors have been designed to fit onto a standard 35mm DIN rail (see 3 - DIN Installation) or within a Furse WBX D enclosure. - Page 5 Installation instructions for mains wire-in protectors DIN Installation Remote display ESP D1 Series protectors have been designed with an Three phase ESP D1R and D1R/LCD units include a remote innovative DIN foot for connection to standard 35mm DIN rails. mounting display to ensure optimum positioning of the This DIN foot, comprising spring loaded steel DIN mounts, unit along with quick and easy status checking.
- Page 6 Installation instructions for mains wire-in protectors Care should be taken against static discharge when Connecting leads to the unit need to be kept short in handling the remote display unit - avoid contact with the order to minimise additive inductive voltages. exposed connector.
- Page 7 Installation instructions for mains wire-in protectors Ensure the power supply does not exceed 125A Under no circumstances must the ESP unit be installed for series installations. The connecting leads to without connection to its neutral. phase/live terminals should be suitably fused (125A Where no neutral is present (eg delta supplies) the neutral (N) maximum) ensuring full discrimination with the terminal on the ESP unit must be connected to earth in...
- Page 8 Installation instructions for mains wire-in protectors (eg in the metering section). Fitting the protector in any other Figure 9 - ESP unit mounted position could affect the protector’s performance. within a distribution board connected to the incoming (iii) directly to the busbars via suitable HRC fuses, switch supply on the load side fuses or MCCBs - see Section 10.
- Page 9 Installation instructions for mains wire-in protectors Isolation (b) Protecting supplies going out of the building It is good practice to be able to isolate or disconnect the The connection methods 8a (i to iii) are not suitable for ESP unit from the supply. The supply to the entire protecting a power distribution board which provides a distribution board should not be switched off on many supply to outside the building - either to a separate building...
- Page 10 Installation instructions for mains wire-in protectors Figure 13 - Installation of Refer to the fuse manufacturer’s operating characteristics ESP unit on first outgoing to ensure discrimination, particularly where an installation way of distribution includes a mixture of types of fuse, or of fuses and board, nearest to the circuit breakers.
- Page 11 Installation instructions for mains wire-in protectors WARNING: The longer the connecting leads (between Size of connecting leads the mains cable or busbars and the terminals of the ESP For parallel connection, the connecting leads between the unit), the greater the voltage let-through the protector. terminals of the ESP unit and the power supply should be If the resultant let-through voltage is higher than the 10 mm...
- Page 12 Installation instructions for mains wire-in protectors Length of connecting leads – series connection Using 6 mm cable make one connection from the For ESP units installed in series (for power supplies ≤125A), ESP unit to the earth bar. the connecting lead to earth needs be kept as short as A second short and direct connection, again using possible and ideally should not exceed 25 cm (10 inches) 6 mm...
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Page 13: Installation Check (Led Units)
Installation instructions for mains wire-in protectors Installation check (LED units) Neutral-earth warning light (LED units) The ESP unit should now be correctly installed. Switch the If the WARNING light is illuminated there is an excessive voltage present between neutral and earth. power supply on. -
Page 14: Status Indication (Led Units)
Installation instructions for mains wire-in protectors Status indication (LED units) The unit is now fully operational. These display messages will be visible and alternate at all times the protector is connected ESP units give a continuous visual display of their status. They and is functioning correctly. - Page 15 Installation instructions for mains wire-in protectors Line fault – protection impaired Neutral-earth warning Live connections (including neutral) will register a ‘ ’ if The Neutral-earth warning screen will display if there is an protected and functioning properly. Where protection to a live excessive voltage present between neutral and earth, or if connection is impaired, the LCD screen will query this with ‘...
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Page 16: Lcd Display Settings
Installation instructions for mains wire-in protectors Check the phase/live and neutral connections and if a mistake Rotate display function has been made, correct it. If all the phase/live and neutral For rotate display, start with introductory screen connections are correct, there is a fault with the mains supply (shown below) (see (b) - below). - Page 17 Installation instructions for mains wire-in protectors Activate backlight Protector information Press and hold the For Protector Information, PATENT PATENT APPLIED APPLIED activate backlight button start with the introductory ESP 415D1R ESP 415D1R SURGE Enhanced SURGE Enhanced for a couple of seconds to screen (shown left).
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Page 18: Remote Indication
Installation instructions for mains wire-in protectors Remote indication Reduced or Unit Healthy No protection A remote indication of the reduced protection state is provided for linking the protector to a building management system, Power Present OPEN CLOSED CLOSED OPEN remote telemetry, PLC or directly to an indication light or buzzer. CLOSED OPEN CLOSED... -
Page 19: Application Notes
Installation instructions for mains wire-in protectors Application notes This should help to reduce any spurious tripping of such devices due to transient overvoltages. Special transient ESP coordination hardened RCDs (type ’S’) can be obtained from a number ESP D1, D1R, D1/LCD and D1R/LCD units are designed to of manufacturers. -
Page 20: Remote Display Cut-Out Template
Remote display cut-out template Installing three phase units on single phase supplies If a three phase unit is installed on a single phase mains 33mm (+0.6) supply (or a supply in which one or two phases are not in use), the ESP units spare (or unused) live terminal(s) should be connected to live, otherwise its indication lights and volt free contact will not work correctly. - Page 21 Thank you for reading this data sheet. For pricing or for further information, please contact us at our UK Office, using the details below. UK Office Keison Products, P.O. Box 2124, Chelmsford, Essex, CM1 3UP, England. Tel: +44 (0)330 088 0560 Fax: +44 (0)1245 808399 Email: sales@keison.co.uk...
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