Eaton CROUSE-HINDS MTL MA3115 Series User manual

July 2021
INS 801-773 Rev B
Instruction sheet
MTL surge protection
MTL MA3115 Range
Operating Instructions for
Single phase, T2+T3 SPD
Eaton Electric Limited,
Great Marlings, Butterfield, Luton
Beds, LU2 8DL, UK.
Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283
E-mail: [email protected]
www.mtl-inst.com
© 2021 Eaton
All Rights Reserved
Publication No. INS 801-773 Rev B 290721
July 2021
1
CAUTION
Do not attempt to open or tamper with the SPD in any way as this will
compromise performance and will void the warranty.
Megger and hi-pot tests will damage this device. Disconnect all power
supplying the equipment and isolate the SPD unit before testing.
Prior to installation, confirm the SPD is rated for the correct voltage,
and frequency equivalent to the application.
Installation
1) Turn off all power supplying this equipment.
2) Mount the SPD using the enclosure flanges to a flat surface.
3) Connect the wire leads as per the wiring diagrams below.
4) For optimal device performance, use shortest length of wire possible and avoid
sharp or unnecessary bends.

Eaton Electric Limited,
Great Marlings, Butterfield, Luton
Beds, LU2 8DL, UK.
Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283
E-mail: [email protected]
www.mtl-inst.com
© 2021 Eaton
All Rights Reserved
Publication No. INS 801-773 Rev B 290721
July 2021
EUROPE (EMEA):
[phone]
[email protected]
THE AMERICAS:
[phone]
[email protected]
ASIA-PACIFIC:
[phone] / 9865
[email protected]
The given data is only intended as a product
description and should not be regarded as a legal
warranty of properties or guarantee. In the interest
of further technical developments, we reserve the
right to make design changes.
2
MTL MA3115 range
July 2021
Technical Data
Model MA3115-277V-1R
Voltage 100-277V
MCOV 320V
Connection Parallel
LV system-Type T N- S,T T
Modes of protection L- N ,L- G ,N - G
Frequency 50/60Hz
In 10kA(8/20µS)
Temperature -40°C to 75°C
Humidity 5 to 95% (non condensing)
Connection Figure A
Lead cross section 2.5sq mm
Fuse rating F2 (IEC) 50A type gG
Wiring Diagrams
PARALLEL CONNECTED SPDs: Units designed to be connected in parallel with the equipment for
protection of the modes as listed in the table above. Refer to the connection diagrams to ensure that
the SPD you have chosen is appropriate for the application it is being installed into. These parallel
versions have LED indication, if the LED is ON , the protection is present. If the LED is off, indicates
a fault condition. Please check power supply / replace the SPD.
Dimensions
(Units in mm)