SUCO

Suco - 0161 Heavy Duty Pressure Switch

Aluminium body

The SUCO 0161 is a rugged, block-style mechanical pressure switch designed for heavy-duty industrial environments. It features a durable aluminium body (30 A/F) with a standard DIN 43650Form A connector and operates up to 250 V AC/DC with SPDT (changeover) silver contacts. It offers six field-adjustable pressure ranges, with high overpressure safety ratings ranging from 200 bar for lower-range diaphragm variants and up to 600 bar for piston types. The switch maintains excellent stability with a maximum deviation of ±0.2 bar on low ranges and ±0.55 bar on higher ranges, it can handle switching frequencies up to 200/min and provides an IP65 ingress protection rating. It functions reliably in ambient temperatures from –20 °C to +80 °C, and with various seal materials (NBR, EPDM, FKM), its compatible with diverse fluids and temperature environments.

The SUCO 0161 excels in demanding hydraulic systems, high-pressure power packs, and heavy machinery installations where reliability and overpressure protection are critical. Its field-adjustability allows technicians to fine-tune activation setpoints on-site for optimal control, while the robust aluminium housing and high IP65 protection enable use in harsh, outdoor, or wash-down environments. With its high-voltage capability and changeover contacts, it’s well-suited for safety interlocks, pump control, or pressure shutdown tasks in general hydraulics, water systems, and heavy industry applications. Whether mounted as a wall block or integrated via G1/4 female thread, the 0161 offers a versatile, rugged solution for heavy-duty pressure monitoring needs.

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  • Up to 250 V
  • Connector included (DIN 43650/Form A)
  • Six adjustment ranges from 0,5..1 bar to 100..400 bar
  • Changeover (SPDT)
  • Over pressure safety from 200 bar up to 600 bar

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Available in several variants

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Technical data

Adjustment range max 1 bar
Adjustment range min 0.5 bar
Approvals CE, RoHS II
Contact load max ac 5 A
Contact load max dc 3.5 A
Deviation max ±0,2
Electrical connection DIN EN 175301-803-A
Function Changeover (SPDT)
IP class IP65
Material membrane NBR
Material of body Aluminium
Material of wetted parts Aluminium, NBR
Max switching frequency/min 200
Pressure max 200 bar
Process connection G1/4 female
Temperature ambient from -20 °C
Temperature ambient to 80 °C
Temperature of media from -40 °C
Temperature of media to 100 °C
Voltage ac/dc max 250 V
Weight 240 g

Measurements and connections

Product description

The SUCO 0161 is a rugged, block-style mechanical pressure switch designed for heavy-duty industrial environments. It features a durable aluminium body (30 A/F) with a standard DIN 43650Form A connector and operates up to 250 V AC/DC with SPDT (changeover) silver contacts. It offers six field-adjustable pressure ranges, with high overpressure safety ratings ranging from 200 bar for lower-range diaphragm variants and up to 600 bar for piston types. The switch maintains excellent stability with a maximum deviation of ±0.2 bar on low ranges and ±0.55 bar on higher ranges, it can handle switching frequencies up to 200/min and provides an IP65 ingress protection rating. It functions reliably in ambient temperatures from –20 °C to +80 °C, and with various seal materials (NBR, EPDM, FKM), its compatible with diverse fluids and temperature environments.

The SUCO 0161 excels in demanding hydraulic systems, high-pressure power packs, and heavy machinery installations where reliability and overpressure protection are critical. Its field-adjustability allows technicians to fine-tune activation setpoints on-site for optimal control, while the robust aluminium housing and high IP65 protection enable use in harsh, outdoor, or wash-down environments. With its high-voltage capability and changeover contacts, it’s well-suited for safety interlocks, pump control, or pressure shutdown tasks in general hydraulics, water systems, and heavy industry applications. Whether mounted as a wall block or integrated via G1/4 female thread, the 0161 offers a versatile, rugged solution for heavy-duty pressure monitoring needs.

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Related

Parts Adjustment range max Adjustment range min Deviation max Material membrane Material of wetted parts Pressure max Temperature of media from Temperature of media to Price
1 bar
0.5 bar
±0,2
NBR
Aluminium, NBR
200 bar
-40 °C
100 °C
1 bar
0.5 bar
±0,2
EPDM
Aluminium, EPDM
200 bar
-30 °C
120 °C
1 bar
0.5 bar
±0,2
FKM
Aluminium, FKM
200 bar
-5 °C
120 °C
5 bar
0.5 bar
±0,2-0,5
NBR
Aluminium, NBR
200 bar
-40 °C
100 °C
5 bar
0.5 bar
±0,2-0,5
EPDM
Aluminium, EPDM
200 bar
-30 °C
120 °C
5 bar
0.5 bar
±0,2-0,5
FKM
Aluminium, FKM
200 bar
-5 °C
120 °C
10 bar
1 bar
±0,5
NBR
Aluminium, NBR
200 bar
-40 °C
100 °C
10 bar
1 bar
±0,5
EPDM
Aluminium, EPDM
200 bar
-30 °C
120 °C
10 bar
1 bar
±0,5
FKM
Aluminium, FKM
200 bar
-5 °C
120 °C
50 bar
10 bar
±3,0
NBR
Aluminium, NBR
200 bar
-40 °C
100 °C
50 bar
10 bar
±3,0
EPDM
Aluminium, EPDM
200 bar
-30 °C
120 °C
50 bar
10 bar
±3,0
FKM
Aluminium, FKM
200 bar
-5 °C
120 °C
100 bar
50 bar
±3,0-5,0
NBR
Aluminium, NBR
200 bar
-40 °C
100 °C
100 bar
50 bar
±3,0-5,0
EPDM
Aluminium, EPDM
200 bar
-30 °C
120 °C
100 bar
50 bar
±3,0-5,0
FKM
Aluminium, FKM
200 bar
-5 °C
120 °C
400 bar
100 bar
±5,0-9,0
NBR
Aluminium, NBR
600 bar
-40 °C
100 °C
400 bar
100 bar
±5,0-9,0
EPDM
Aluminium, EPDM
600 bar
-30 °C
120 °C
400 bar
100 bar
±5,0-9,0
FKM
Aluminium, FKM
600 bar
-15 °C
120 °C

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