Features
• Switch element: mercury (Hg)
• Limit value detection for fluids
• Sleeve design: small diameter, mounting through G1 tap
hole possible
• Ball design: high buoyancy
Function
The mercury (Hg) mechanical contact (change-over contact)
is encapsulated in the PP float and is activated in the event of
deviations from the horizontal position.
Electrical specifications
Contact loading 230 V AC/3 A/200 VA; 150 V DC/3 A/100 W resistive load
Rated insulation voltage 300 V
Pulse withstand voltage 4 kV
Directive conformity
Low voltage
Directive 2014/35/EU EN 60947-5-1:2004 + Cor.:2005 + A1:2009
Conformity
Degree of protection IEC 60529:2001
Application
Description mercury (Hg) change-over contact
Function and system design
Equipment architecture This device may be used with any sequential circuit, as long as the circuit can support the electrical circuit
values of the switching elements.
Operating conditions
Installation conditions
Installation instructions range of application and minimum length between mounting and float:
– PVC version: ≥ 50 mm (2 inch), preferred for water
– PUR version: ≥ 100 mm (4 inch), preferred for fuels, heating oils, oily fluids
– CSM/CM version: ≥ 100 mm (4 inch), preferred for many acids and lyes
– TPK version: ≥ 100 mm (4 inch), preferred for many acids and lyes
mounting:
– The float switch is mounted either from sidewards through a cable gland ≥ G1A into the vessel or
– by means of a counter weight or rods (e. g. float switch combination) from the top.
The pivot of the cable should always be horizontal.
Process conditions
Process pressure (static pressure) sleeve design: ≤ 3 bar at 20 °C (68 °F)
ball design: ≤ 2 bar at 20 °C (68 °F)
Density sleeve design: ≥ 0.8 g/cm3
ball design: ≥ 0.6 g/cm3
Ambient conditions
Ambient temperature PVC version: 5 … 70 °C (41 … 158 °F)
PUR version: 5 … 70 °C (41 … 158 °F)
CSM/CM version: -20 … 70 °C (-4 … 158 °F)
TPK version: 5 … 70 °C (41 … 158 °F)
Storage temperature -25 … 70 °C (-13 … 158 °F)
Altitude ≤ 2000 m above MSL
Mechanical specifications
Degree of protection IP68
Mechanical construction
Material float: PP (Polypropylene)
cable:
– PVC version: PVC cable, highly flexible (3 x 0.75 mm2)
– PUR version: PUR cable, highly flexible (3 x 0.50 mm2)
– CSM/CM version: CSM/CM cable (chlorinated polyethylene, (3 x 0.75 mm2))
– TPK version: TPK cable, (3 x 0.75 mm2)
Switching point switch angle, measured against the horizontal:
– upper switch point +15° ±5°
– lower switch point -15° ±5°
General information
Supplementary information Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be
observed where applicable. For information see www.pepperl-fuchs.com.
