EZTL detonators are signal tube based detonators designed to control the millisecond delay sequence from hole to hole, across the surface of a blast.

The special design of NONEL® EZTL detonators allows up to five outgoing signal tubes to be initiated and provides security of tube retention. NONEL® EZTL detonators consist of a length of NONEL signal tube and a low strength delay detonator. The free end of the tubing is closed with a waterproof seal. The delay detonator is fully enclosed in a unique color coded handiblock.

NONEL® EZTL  detonators function as a surface relay system, which enables an unlimited number of blastholes to be fired in sequence. This permits large well-controlled blasts to be fired, producing better results more efficiently.

NONEL® EZTL  detonators are commonly used in conjunction with a delay detonator in every blasthole. The normal practice is for all in-hole detonators to have the same delay period and, as a result, the surface detonators control the firing sequence. NONEL® EZTL  detonators are produced with arrange of delay times to match to the needs of mines, quarries and construction projects.

Delay Time (msec) Connector Block Color
9 Green
17 Yellow
25 Red
42 White
67 Blue
100 Black
109 Black

Hazardous Shipping Description:
Detonator Assemblies, Nonelectric
1.4B, UN 0361 PG II

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