SN2303

Description

Application

Application	Flow monitoring; Wire monitoring

Electrical data

Frequency AC [Hz]	47…63
Operating voltage tolerance [%]	-10…10
Operating voltage [V]	< 200 AC
Max. power consumption [VA]	5
Reverse polarity protection	no
Power-on delay time [s]	30
Number of channels	1

Outputs

Electrical design	relay
Contact rating	4 A (250 V AC cos phi > 0,7) ; 0,2 A (250 V DC); 4 A (24 V DC)
Switching function flow monitoring	relay energised when flow is present
Switching function wire break monitoring	relay de-energised in case of wire break
Short-circuit proof	no
Overload protection	no

Software / programming

Adjustment of the switch point	potentiometer
Selection liquids / gases	slide switch

Operating conditions

Ambient temperature [°C]	-20…60
Storage temperature [°C]	-20…85
Protection	IP 40
Protection rating terminals	IP 20

Tests / approvals

Mechanical data

Weight [g]	548.5
Housing	housing for DIN rail mounting
Dimensions [mm]	78 x 45 x 120
Materials	plastics

Displays / operating elements

Display

function	11 x LED
switching status	LED, red

Electrical connection

Required protection	miniature fuse to IEC60127-2 sheet 1; ≤ 5 A; fast acting; Place the fuse outside the hazardous area.

Remarks

Caution The control monitor must be mounted outside the hazardous area.

Recommendation Check the safe functioning of the unit after a short circuit.

Pack quantity

1 pcs.

Electrical connection

Connection	terminals: 15 x …2.5 mm²

Other data

Maximum values for control circuit

in protection rating intrinsic safety	[EEx ia] IIC	[EEx ia] IIB	[EEx ib] IIC	[EEx ib] IIB
Voltage [V]	15.8	15.8	15.8	15.8
Current [mA]	92	92	92	92
Power [mW]	680	680	680	680
External inductance [mH]	1	1	1	1
External capacitance [µF]	0.185	1.6	0.185	1.6

SN2303

Datasheet
EN PDF

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