GENERAL SAFETY INFORMATION: Always read before proceeding.
Warning
These instructions contain both information and warnings that are necessary for the safe operation
and maintenance of this product. It is recommended that you read the instructions carefully and
ensure that the contents are fully understood. Failure to understand and to comply with the warnings
and instructions can result in serious injury, damage or even death.
In order to avoid the danger of electrical shock, it is important that proper safety measures are taken
when working with voltages exceeding 30V AC rms, 42V AC peak or 60V DC.
This product must only be used by a competent person capable of interpreting the results under the
conditions and for the purposes for which it has been constructed. Particular attention should be paid
to the Warnings, Precautions and Technical Specifications. Always check the unit is in good working
order before use and that there are no signs of damage to it. Do not use if damaged.
Where applicable other safety measures such as use of protective gloves, goggles etc. should be
employed.
Please keep these instructions for future reference. Updated instructions and product information are
available at: www.martindale-electric.co.uk
REMEMBER: SAFETY IS NO ACCIDENT
MEANING OF SYMBOLS:
Equipment complies with relevant EU Directives
End of life disposal of this equipment should be
in accordance with relevant EU Directives
Caution - risk of electric shock
Caution - risk of danger & refer to instructions
CAT IV Overvoltage Category IV (CAT IV) is for equipment at or near the origin of the electrical supply
including LV substation bus bars, electricity tariff meters and primary overcurrent protection
devices.
Thank you for buying one of our products. For safety and full understanding of its benefits please read this
manual before use. Technical support is available from 01923 441717 and support@martindale-electric.co.uk.
1. INTRODUCTION
1.2 Description
The DRUMMOND G Clamp is a moulded insulated clamp-on connector designed to provide a direct
connection to a rigid rectangular bus bar.
The clamp-on facility eliminates the need to drill the bus bar.
The insulated materials reduce the risk to the installer.
To counter the effects of vibration, a spring-loaded contact pin ensures consistent electrical contact force that
is independent of the clamp screw installed torque and a locking ring nut secures the clamp screw against
loosening.
Fluted grip features enable the clamping screw and locking ring nut to be tightened by hand while wearing
PPE insulated gloves. This eliminates the need to use tools within the bus bar chamber.