MACHINE SAFETY SYSTEMS
PRE-START WARNING UNIT 
Code 2629
Application
Used to interrupt the electrical pilot circuit of a coal cutting machine so that the drive motor cannot start until a predetermined time has elapsed following the starting of the dust suppression water
Features
ATEX Certified
Ranges
Pressure – 70 BAR max
Maximum Dimensions
H – 100mm
W – 102mm
L – 390mm
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PRE-START WARNING / FLOW SWITCH 
Code 4440 & 4450
Application
Used to provide a positive safety measure to eliminate accidents in the vicinity of the cutting drums of coal cutting machinery.
Features
ATEX Certified
Ranges
Flow – 130 LPM max
Pressure – 70 BAR max
Maximum Dimensions
H – 180mm
W – 150mm
L – 390mm
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PRESSURE SWITCH 
Code 2817
Application
Used for switching machine pilot circuits, control equipment and signalling equipment.
Features
Pressure switch settings from 4.8 BAR up to 140 BAR
Ranges
Pressure - 210 BAR max
Voltage -
250 VAC (50Hz)
250 VDC
Current - 750 uA
Maximum Dimensions
H – 260mm
W – 100mm
L – 100mm
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PRESSURE / FLOW 
SWITCH
Code 4900
Application
Used to electrically interrupt mining cutting head motors if minimum water requirements are not met.
Features
Flow and pressure switching set to customer specification at the factory. Can be positioned in any attitude.
Switching voltage 240AC max
Switching currant 30 AMP max
Ranges
Flow Rate – 300 LPM max
Pressure – 206 BAR max
Maximum Dimensions
H – 117mm
W – 90mm
L – 150mm
Please click for a full product specification download
