Fig.2 SPD Window in Inner Cover
MEMSHIELD 4 INSTALLATION INSTRUCTIONS FOR
EM4PBSPD34 / EM4PBSPD1234 SURGE PROTECTION DEVICE
Instruction leaflet LT1225 (01/19)
IMPORTANT NOTES
1. This product should be installed, commissioned and maintained by or under the supervision of a competent electrician in
accordance with current electrical engineering Codes of Practice, Requirements for the Electrical Installations (IET Wiring
Regulations BS7671), Construction (Design and Management) Regulations, HSG150 - Health and Safety in Construction, Statutory
requirements and any Specific instruction issued by the Company.
2. After completing the installation and testing of this product it is essential that this leaflet is drawn to the attention of the
person responsible for its future operation and maintenance, and is at all times available for ready reference.
3. These notes assume throughout that the product is disconnected from the supply. It is essential that this is done before any
work is carried out.
4. These Panelboards are only designed for use with Eaton MCCBs. Failure to comply will result in invalid warranty and
certification.
Items supplied with Surge Protection Modules
M5 x 12mm self tapping screw
4 Qty
Cable Tie
4 Qty
Cable Tie Base
2 Qty
92mm x 92mm window
1 Qty
25mm² M8 Ring Connector
1 Qty
25mm² Cable Ferrules
4 Qty
25mm² Cables
5 Qty
Grommet 25mm diameter
1 Qty
Surge Supression Device Label
1 Qty
BEFORE INSTALLATION:
A. Verify that the system is wired in a Three Phase Star configuration (fig. 5) and that the voltage rating of the system matches
the voltage rating of the SPD as shown on the label.
If the Neutral to Earth voltage is greater than 5 VAC, then a problem may exist in the electrical system. The SPD may be installed;
however, a qualified person should be consulted to correct the problem.
B. The SPD must be connected to the Panelboard via a 4 Pole 63A MCCB and adaptor. If the board is compartmentalised then the
appropriate compartment kit is required to segregate the 4 Pole MCCB. (needs to be ordered separately)
SPD MOUNTING POSITION
There are two positions for the SPD.
Position 1 is in the panel board (fig .1 & 2) and Position 2 is in
the cable way (fig.3 & 4).
1. As standard the SPD is mounted in the panel board on the
RH side for the shortest possible wire installation. The 4 Pole
NZM1 must be fitted on the FIRST outgoing way to minimise
the connecting wire lengths.
The SPD status indicators can be viewed through the window
in the inner cover and an auxiliary contact is provided for
external monitoring.
Fig.1 SPD Position in Panelboard
SPD Status Viewing Window
L3
L2
L1
E
N
