Crouzet 84870720 Data Sheet

Level control

MNS

Part numbers

Product adaptations

Accessories

General characteristics

➜ Level control relay - 17.5 mm

■ Level control by means of a discrete sensor

Type Sensing Nominal voltage (V) Code

MNS By discrete sensor

24

■ Customisable colours and labels

■ Fixed time delay or adjustable range

➞ 240 V

z

84870720

Description Code

Removable sealable cover for 17.5 mm casing

Supply

Supply voltage Un
Voltage supply tolerance -15% / +10%

Operating range
Polarity with DC voltage No

a

supply voltage frequency

Power consumption at Un
Immunity from micro power cuts < 5 ms

Inputs and measuring cicuit

Display precision ±10% of full scale
Digital probe input circuit Volt-free contact
Max. voltage at probe terminals Supply voltage Un
Minimum pushbutton activation duration 50 ms
Max input current 1 mA
Max. length of probe cables 100 m

Timing

Delay on threshold crossing 1
Repetition accuracy with constant parameters ± 0.5%
Reset time < 100 ms

Output

Type of output 1 single pole changeover relay
Type of contacts No cadmium
Maximum breaking voltage

Max. breaking current
Min. breaking current
Electrical life (number of operations)
Breaking capacity (resistive)
Maximum rate 360 operations/hour at full load

Operating categories acc. to IEC 60947-5-1 AC 12, AC 13, AC 14, AC 15, DC 12, DC 13, DC 14
Mechanical life (operations)

Insulation

Nominal insulation voltage IEC 60664-1 250 V
Insulation coordination (IEC 60664-1 / 60255-5) Overvoltage category III: degree of pollution 3
Rated impulse withstand voltage IEC 60664-1/60255-5 4 KV (1.2 / 50 µs)
Dielectric strength IEC 60664-1/60255-5 2 kV AC 50 Hz 1 min
Insulation resistance IEC 60664-1 / 60255-5

24 V

20.4 V

50/60 Hz ± 10%

5.5 VA in

➞ 10 s, (1/+10%)

250 V

z

5 A
10 mA / 5 V
1 x 10
1250 VA

30 x 10

> 500 Ω / 500 V

➞ 240 V

➞ 264 V

a

z

5

a

6

z

z

/2 W in

c

c

c

84800000

48

www.crouzet.com

General characteristics

General characteristics

Display power supply Green LED
Display relay Yellow LED
Casing 17.5 mm
Mounting On 35 mm symmetrical DIN rail, IEC/EN 60715
Mounting position All positions
Material: enclosure plastic type VO to UL94 standard Incandescent wire test according to IEC 60695-2-11 & NF EN 60695-2-11
Protection (IEC 60529) Terminal block: IP 20

Weight 80 g
Connecting capacity IEC 60947-1

Max. tightening torques IEC 60947-1 0.6
Operating temperature IEC 60068-2 -20
Storage temperature IEC 60068-2 -40
Humidity IEC 60068-2-30 2 x 24 hr cycle 95% RH max. without condensation 55°C
Vibrations according to IEC/EN60068-2-6 10
Shocks IEC 60068-2-6 5 g

Standards

Marking CE (LVD) 73/23/EEC - EMC 89/336/EEC
Product standard NF EN 60255-6 / CEI 60255-6 / UL 508 / CSA C22.2 N°14
Electromagnetic compatibility Immunity EN 61000-6-2/IEC 61000-6-2

Certifications UL, CSA, GL

Conformity with environmental directives RoHS, WEEE

Casing: IP 30

Rigid: 1 x 4
Flexible with ferrules: 1 x 2.5

Emission EN 61000-6-4/EN 61000-6-3
IEC 61000-6-4/IEC 61000-6-3
Emission EN 55022 class B

2

- 2 x 2.52 mm2, 1 x 11 AWG - 2 x 14 AWG

➞ 1 Nm / 5.3 ➞ 8.8 Lbf.In
➞ +50°C
➞ +70°C

➞ 150 Hz, A = 0.035 mm

2

- 2 x 1.52 mm2, 1 x 14 AWG - 2 x 16 AWG

pending

Principles

Operating principle
MNS - Level controller using a discrete sensor

U

1

2

3

R

Cycle start PB

B

High threshold level

C

Monitored level

D

Ton time delay

E

Toff time delay

F

Toff

4

Toff

Ton

5

Ton

<->

This product is designed to control a level by means of a discrete probe (float switch).
On power-up, the relay remains in the rest position. The level control function only begins after
the pushbutton (PB) is pressed. This pushbutton is located on the front of the product, but can
also be remotely located between Y1 and A1.
The output relay only closes if the float switch is open. If the level rises enough to make the float
switch close, the relay will be deactivated after the time delay Toff.
When the level drops and the probe opens, the relay is re-energised after the time delay Ton.
The LEDs flash when the product is energised but the cycle has not started (PB has not yet been
pressed).
The time delays Ton and Toff are set at between 0.1 and 10 sec by means of two potentiometers
on the front face.

Dimensions (mm) Connections

MNS

67,5

60

44

23,2

3,5

45

17,5

2,6

MNS

L1

L2

L3

N

–

~

+

F1

1

90

A1 A2

A1

A2

12

12 14

11

Y1

V1

U1

11

R

14

Y2

W1

M1

3

l ≤ 100 m (3937 in)

1 A fast-blow fuse or cut-out

B

"Float" switch

C

2

49