Jola Spezialschalter K. Mattil & Co. KG
Klostergartenstraße 11-20
D-67466 Lambrecht
Phone: +49 63 25 / 188-01
 
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Float switch made of stainless steel

SMG/VE/S1

 
  • pressure resistant model

 
Picture 2
For light current applications

Only for use in liquids with a specific density >=1 g/cm³
Brochure Float switches SM [PDF]
Switching voltage AC min. 1 V
Switching voltage AC max. 42 V
Switching voltage DC min.  1 V
Switching voltage DC max.  42 V
Switching current AC min. 0.1 mA
Switching current AC max.  100 mA
Switching current AC max.
(inductive loads)		 50 mA
Switching current DC min.  0.1 mA
Switching current DC max.  10 mA
Switching capacity AC max.  4 VA
Operating principle 
microswitch: changeover contact
Float material stainless steel 316 Ti
Float form cylindrical float
Float diameter 63 mm
Float length 140 mm
Bellows material stainless steel 316 Ti
Screw-in nipple material stainless steel 316 Ti
Screw-in nipple dimension G1
Flange 
On request: square blind flange with G1 thread 
made of steel St 37 or stainless steel 316 Ti
(dimensions see hyperlink below) or other flanges with 
any desired dimensions
Float protection class IP 68
Connection head 
PP with M 20 x 1.5 cable entry, 
protection class IP 54
Mounting orientation vertical
Mounting from the top
Temperature resistance 
0° C to + 100° C
(inside the connection head: 0° C to + 60° C)
Pressure resistance 
pressure resistance up to 4 bar at + 20° C /
d >= 1.0 g/cm³
(test pressure: max. 6 bar at + 20° C)
 
On request: connection head made of cast aluminium, protection class IP 54

To protect the user and the contacts of our apparatus we recommend the use of our
KR .. protection relays (see product group "Protection relays and alarm relays", 
click on heading "Others").

For full alarm, empty alarm or run dry protection:     1 relay per float switch
For on/off control (with self-hold):                        1 relay for 2 float switches
 
This unit is not suitable for use in turbulent liquids (e.g. in stirrer tanks).

Mounting instruction:

These float switches must be mounted vertically.
- remove the pin,
- unscrew the float,
- screw the float switch with its seal into the G1 tank socket or flange borehole,
- seal in place,
- screw back in place the float,
- secure the float using the pin.

 
Measure drawing
Option
Basic circuit
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