MOELLER EASY721-DC-TC Technical data

Type: EASY721−DC−TC
Article No.: 274121

Ordering information

Power supply V DC 24 V DC

Description

12 digital inputs (4 inputs available as analog inputs)•
8 transistor outputs•
LCD display•
Operating buttons•
Screw terminals•
Timer•
Can be expanded using easy expansion units•

Notes concerning the product group

Backup of real−time clock (only for appropriate devices)

Backup time (hours)

Operating time (years)

1

General

EN 55011, EN 55022,

Standards

IEC/EN 61000−4, IEC
60068−2−6, IEC

60068−2−27
Dimensions (W × H × D) mm 107.5 × 90 × 58 (6 PE)
Weight kg 0,3

Top−hat rail IEC/EN 60715,
Mounting

35 mm or screw fixing using

fixing brackets

ZB4−101−GF1 (accessories)

Terminal capacities

Solid mm
Flexible with ferrule mm

2

0.24 (AWG 22 – 12)

2

0.22.5 (AWG 22 – 12)
Standard screwdriver mm 3.5 × 0.8
Max. tightening torque Nm 0,6

Climatic environmental conditions

−25 to 55, cold as per IEC
Operating ambient temperature °C

60068−2−1, heat as per IEC
60068−2−2

Condensation

Take appropriate measures

to prevent condensation
LCD display (clearly legible) °C 055
Storage °C −40/+70
Relative humidity, non−condensing

(IEC/EN 60068−2−30)

% 5 – 95

Air pressure (operation) hPa 795 – 1080
Corrosion resistance

IEC/EN 60068−2−42

IEC/EN 60068−2−43

4 days

SO

2

4 days

H2S

cm3/m

cm3/m

3

10

3

1

Ambient conditions, mechanical

Pollution degree 2
Degree of protection (IEC/EN

60529)

IP 20

Vibrations (IEC/EN 60068−2−6)
Constant amplitude 0.15 mm Hz 10 – 57
Constant acceleration 2 g Hz 57 – 150
Mechanical shock resistance

(IEC/EN 60068−2−27)

Impacts 18

semi−sinusoidal 15 g/11 ms

2

Drop to IEC/EN 60068−2−31

Drop

height

mm 50

Free fall, packaged (IEC/EN
60068−2−32)

m 1

Mounting position horizontal/vertical

Electromagnetic compatibility (EMC)

Electrostatic discharge (IEC/EN
61000−4−2, Level 3, ESD)

Air discharge kV 8
Contact discharge kV 6
Electromagnetic fields (IEC/EN

61000−4−3, RFI)
Radio interference suppression (EN

55011)

V/m 10

EN 55011 Class B, EN

55022 Class B
Burst pulses (IEC/EN 61000−4−4,

level 3)
Supply cables kV 2
Signal lines kV 2
High−energy pulses (surge)

(IEC/EN 61000−4−5)

kV

2 (supply cables,

symmetrical, EASY...AC)
High−energy pulses (surge)

(IEC/EN 61000−4−5, level 2)

kV

0.5 (supply cables,

symmetrical, EASY...DC)
Immunity to line−conducted

interference to (IEC/EN

V 10

61000−4−6)

Insulation resistance

Clearance in air and creepage
distances

EN 50178, UL 508, CSA

C22.2, no. 142
Insulation resistance EN 50178

Backup/accuracy of the real−time clock

Accuracy of the real−time clock Normally ± 5 (± 0.5 hyear)

Repetition accuracy of timing relays

Accuracy of timing relays (of
values)

% ± 1

Resolution
Range “S” ms 10
Range “M:S” s 1
Range “H:M” min 1

Retentive memory

Write cycles of the retentive
memory

Power supply

3

1000000 (106)