Danfoss ECtemp 330 Data sheet

Data Sheet

YEAR

WARRANTY

Product specifications

Product

ECtemp 330

ECtemp 330 is a line of simple electronic thermostats to be installed in electric

cabinets with DIN rail attachment. To measure and control the desired temperature
either a wire sensor (in the set) or an external indoor/outdoor air sensor must be
used. The thermostat must be installed via an all-pole disconnection switch. It has a
LED indicating showing standby (green light) and heating (red light) periods.

ECtemp 330 has a relay with 2 contact pairs - NO (normally opened) and NC
(normally closed), and are supposed to be used for heating and cooling systems.
Additionally, NO and NC contact pairs are not wetted by a voltage source inside the
thermostats, and can be used for control systems with any voltage up to 250 V.

The series is designed with thermostats in three temperature range.

ECtemp 330 (-10 - +10°C) is used primarily for controlling a lower temperature
range such as frost protection. This thermostat has a button to adjust the
temperature setting with a scale from -10 °C to +10 °C. Special outdoor white wire
sensor included in a set.

ECtemp 330 (5 - 45°C) is used primarily for controlling lower temperature range
such as frost protection and for cooling, Comfort Floor Heating, Total (Direct) Floor
Heating, Ice and Snow Melting on Ground, Frost Protection on Roofs, Pipe Tracing,
etc. The thermostat has a button to adjust the temperature setting with a scale from
5 °C to 45 °C. This type has temperature lowering in economy periods mode by
using external timer.

Benefits

• For DINrail mounting

• Low temperature area

• Low standby consumption

• LED indicator

Approvals:

Standard compliance

• EN/IEC 60730-1 (general)

• EN/IEC 60730-2-9 (thermostat)

Operation voltage 220 - 240 V, 50/60 Hz

Standby power consumption Max. 0,25 W

Resistive load Max 16 A (3680 W) @ 230 V

Inductive load Max. 1 A, cos φ = 0,3

Ambient temperature -10 °C to +50 °C

Cable specification max 1 x 4 mm2 or 2 x 2,5 mm

Storage temperature -20 °C to +65 °C

IP class 20

Hysteresis ± 0,2 °C

Protection class

Dimensions (H/W/D) 85 x 36 x 58 mm

Weight 83 g

Class II -

2

Types

Item no. Product name Temp. range Sensor type Night setback Marking EAN no.

088L0445 ECtemp 330 (+5 – +45°C) 5 °C to 45 °C

088L0444 ECtemp 330 (-10 – +10°C) -10 °C to +10 °C

Wire sensor, 3 m,

NTC 15 kOhm at 25 °C

Wire sensor, 3 m,

NTC 15 kOhm at 25 °C

5 °C D330 5703466130353

– D330 5703466130346

AI239086497830en-010104Electrical heating · ©Danfoss

Connection scheme

Max. 10 A

(cooling)

Timer

Night

setback

for (5-45 °C)

Load

max. 16 A

(heating)

ECtemp 330 (5 - 45 °C)

ECtemp 330 (-10 - +10 °C)

Electrical heating · ©Danfoss AI239086497830en-010104