wheelock XB15 INSTALLATION INSTRUCTIONS

Technical Manual for the

Strobe – XB15UL

Please note that ever y care has been taken to ensure the accuracy of our
technical manual. We do not, however, accept responsibility for damage,
loss or expense resulting from any error or omission. We reserve the right
to make alterations in line with technical advances and industry standards.

© MEDC 2004 09/04

1. INTRODUCTION

These certified strobes have been designed for use in potentially explosive

atmospheres and harsh environmental conditions. The glass reinforced polyester
enclosures are suitable for use offshore or onshore, where light weight combined
with corrosion resistance is required.

The strobe housing is manufactured completely from a U.V. stable, glass reinforced

polyester. Stainless steel screws and mounting bracket are incorporated ensuring a
totally corrosion free product.

Units can be painted to customer specification and supplied with identification labels.

2. INSTALLATION
General

When installing and operating explosion-protected equipment, requirements for

selection, installation and operation should be referred to eg. IEE Wiring Regulations
and the ‘National Electrical Code’ in North America. Additional national and/or

local requirements may apply.
Ensure that all nuts, bolts and fixings are secure.
Ensure that only the correct listed or certified stopping plugs are used to blank off

unused gland entry points and that the NEMA/IP rating of the unit is maintained.

Mounting

Direct mounted version
The unit can either be directly mounted using inserts moulded into the back of the

enclosure (standard) or a backstrap (optional) can be fixed to the unit giving an

optional mounting position for when direct mounting is deemed suitable.
MEDC recommend the use of stainless steel screws.
Direct mounting: M5 (13/64”)*
Backstrap mounting: M8 (5/16”)
*Please note: For direct mounting, please observe the following formula to determine

length of fixing screw required:­ Length of screw = Thickness of mounting surface + 25/64” (10mm)
Pole mounted version

The unit can be mounted to a ½” or ¾” pipe and may be mounted in any position. To

mount the unit, thread fully onto conduit and secure with the grub screw provided.
Cable Termination

CAUTION: Before removing the cover assembly, ensure that the power to the unit

is isolated.

Unscrew the grub screw in the flange of the cover. Unscrew and remove the cover

and lens assembly using the spanner supplied to gain access to the inside of the

unit. Unscrew the 2 off plastic thumbscrews and carefully lift the PCB assembly clear

of the mounting pillars to gain access to the terminals.

09/04 © MEDC 2004