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EW-01 - School Bell Controller 230V AC

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RRP: $262.71
$218.92 (inc VAT) $218.92 $182.43 (exc VAT) (You save $43.79)
1.60 KGS
5 - 10 days lead time

 Product Description

The Electronic School Janitor is a schoolbell control unit, ready to work, using the SDM-10 device. The set is designed for modernization or preparing a new bell system.

The EW-01 includes a switch disconnector, bellcontroller, relays connected in parallel, special purpose buttons for switching into the short lessons mode and an alarm button with an acoustic signalling. The SDM-10 controller is the main control part of the system.

The controller is designed for school acoustic signalling control by means of bells (e.g.: DNT-212, DNS-212, DNT-212M, DNS-212M of ZAMEL).

The system control runs in an automatic mode according to the preset algorithm. The program preparing is being held by means of entering lesson and break times, and beginning time.

The system is ready to implement some specials functions (alarm bells, short lessons) by means of programmable control inputs.

NOTE: The system controls 230 V AC bells.It is possible to use 8 and 24 V AC bells with the TRM-8 or TRM-24 doorbell transformers of exta series.


- Two ways of connecting possible
- RTC circuit and built-in calendar
- Relay output - two change over contacts, maximum load 16 A
- Easy time table programming algorithm
- Bell duration setting possible
- Clock and algorithm data battery sustain
- Easy lesson time changeover: normal / short
- Two control inputs for running programmed functions
- Surface-mounted casing, dimensions 197x227x93 mm

Technical details

Mounting method Surface Mounted
Number of channels 1
Power supply terminals L, N
Rated temperature - 20/45 °C
Rated frequency 50/60 Hz
Degree of protection (IP) IP40
Parameters of relay contacts 16 A / 250 V AC1 4000 VA
Dimensions 197 x 227 x 93 mm



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