Product Overview
The E313 is a single-shot extension timer designed to control part, or all of a heating, lighting or air-
conditioning system outside normal occupancy hours. A voltage-free relay output is switched on for a
configurable number of hours after the delay period has elapsed (also configurable). Thus enabling plant
equipment to be automatically activated at the correct time in the future without the user being present.
The unit is an extremely user-friendly device with fully adjustable timings (in steps of 1 hour), providing
simple yet powerful control of user-managed devices when they are unmanned.
The E313 combines precise and accurate operation with fully configurable parameters to provide
effective energy control. This efficient timer offers an adjustable “Delay” period from 0 to 99 hours and
an “Extension” period from 1 to 9 hours. The unit also provides the functionality to pre-set a maximum
“Extension” period at hourly intervals to ensure that the end-user does not over-estimate the ‘On’
(extension) duration, allowing the authorised user control over each and every extension period.
The E313, not only efficiently controls plant equipment and provides additional efficiency to the time-
management of personnel, but it effectively reduces energy bills.
Product Wiring
1. IMPORTANT
: ensure all electrical connections are isolated before commencing any work on the unit.
2.
Power to the E313 extension timer is provided via the Live and Neutral input terminals labelled “L” and
“N” (230V AC, 50Hz). This supply should be suitably fused (recommended: 1A slow blow).
3.
NOTE: This timer MUST be earthed using the earth terminal provided.
4.
A voltage-free changeover relay output capable of switching loads of up to 10A, 250V AC (resistive) is
provided by the extension timer.
5. The Common “COM” terminal is connected to the Normally Open “N/O” terminal during the extension
period, otherwise it is connected to the Normally Closed “N/C” terminal at all other times.
Installation
1. IMPORTANT
: ensure all electrical connections are isolated before commencing any work on the unit.
2.
Ensure the control panel has a hole cut-out of the correct size to mount the E313 extension timer (see
Figure 2).
3.
Unscrew the 4 screws on the face of the E313 to remove the back cover, plus the 2 screws holding the
mounting bracket to the back cover.
4.
Feed the wiring through the control panel cut-out, through the rubber grommet in the E313 back cover
and connect the wiring to the terminal blocks on the extension timer as shown in the wiring diagram (or
any suitably appropriate form). Make sure to choose the correct output terminals that are suitable to
your application.
Figure 1
Typical wiring example
2
Issue 1.2
