820 Series Time Delay Relay Dials

Issue:

Need to know what the dials indicate on 821TD10H-UNI and 822TD10H-UNI Timers

Product Line:

820 Series Timers

Environment:

Relays and Timers

Resolution:

First dial indicates the timing range. It has 1 and 10 setting. S for Seconds, M for minute, H for hours, D for days.

Second dial is the fine tuning or multiplier to set the timer. Depending on the time set on the first dial, the setting on the 2nd dial will be multiplied to the time on the first dial.

For example, first dial set at 10 s, 2nd dial set at .5 would mean the timer is set at 5 secs.

Third dial indicates the function lettered from A to J.

A. ON DELAY Power On

B. REPEAT CYCLE Starting Off

C. INTERVAL Power On

D. OFF DELAY S Break

E. RETRIGGERABLE ONE SHOT

F. REPEAT CYCLE Starting On

G. PULSE GENERATOR

H. ONE SHOT

I. ON/OFF DELAY S Make/Break

J. MEMORY LATCH S Make

For more info on the functions, refer to the attached instruction sheet.

Released for: Schneider Electric Canada