E51

Digital controller with defrost

- Panel mount thermostat 65 x 33 mm
- 1 PTC /NTC probe input
- Relay output
- Time based defrost by compressor stop
- 1 display, 3 digits

Process inputs:
1 temperature probe input

- PTC KTY81-121 (990 Ω @ 25 °C)
- NTC 103AT-2 (10KΩ @ 25 °C)
Overall accuracy: ± 0.5 % fs + 1 digit

Mechanical Keyboard: 3 multifunction keys

Process outputs:
1 Digital outputs
OUT1
- Relay SPST-NO 16A-AC1
(6A-AC3 250 VAC, 1 HP 250 VAC, 1/2HP 125 VAC)
- Relay SPDT 16A-AC1
(6A-AC3 250 VAC, 1 HP 250 VAC, 1/2HP 125 VAC)

Power supply:
- 12 VAC/VDC
- 115 VAC
- 230 VAC

Functions:
- Stand-by mode
- ON/OFF control
- Start-up delay
- Compressor protection

Defrost:
Defrost start/stop:
- Time based (continuous compressor working time)
Defrost methods:
- By compressor stop

Communication and programming:
- Easy to use front interface for configuration

Installation:
Mounting method: panel mount
Case dimensions: 65 x 33 mm, depth 50 mm

Connections:
Signals connection: 2.5mm² screw terminals block
Protection factor : IP 65 front protection

Display and indicators:
1 Display, 3 digits, h 14 mm, red colour

Used for:
- Refrigeration (as replacement of electromechanical thermostats)

UL Recognition Canada USA