- RS Stock No.:
- 185-9847
- Mfr. Part No.:
- SMA1
- Brand:
- Mobrey
Discontinued product
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- RS Stock No.:
- 185-9847
- Mfr. Part No.:
- SMA1
- Brand:
- Mobrey
Technical data sheets
Legislation and Compliance
- COO (Country of Origin):
- GB
Product Details
Industrial Miniswitch
Mobrey M-Switch. Designed for alarm functions, this compact switch in 316 stainless steel utilises a micro-change switching mechanism activated magnetically as the float moves through the switching position. This float assembly rises and falls according to the liquid level. Ideal for use within condensate tanks, header tanks, storage tanks or for providing an alarm for low levels of lubricating oils or fuels. The mini switch can be side mounted or in an external chamber. The M-Switch has excellent construction and is highly reliable.
25mm switching differential
SG of liquid; 0.75min.
Mounting arrangement Mobrey 'A' flange
Available as standard or ATEX approved (Flameproof ATEX 11 1/2G EExd IIc T6, IP66/IP67)
NOT suitable for direct pump control (unless 2 switches are used)
SG of liquid; 0.75min.
Mounting arrangement Mobrey 'A' flange
Available as standard or ATEX approved (Flameproof ATEX 11 1/2G EExd IIc T6, IP66/IP67)
NOT suitable for direct pump control (unless 2 switches are used)
Mobrey M-Switch SMA1
Float Operated Liquid Level Switch
Benefits:
Highly reliable
Excellent construction
Available for side mounting with either a flanged or 2-in. threaded connection
Reliably detects the liquid level to give a voltage free contact operation for alarm signalling or as part of a pump control system
Excellent construction
Available for side mounting with either a flanged or 2-in. threaded connection
Reliably detects the liquid level to give a voltage free contact operation for alarm signalling or as part of a pump control system
Features:
Minimum liquid specific gravity: 0.75
Differential: 1in (25mm)
Length into tank: 6in (153mm)
Float diameter: 1.9in (48mm)
Maximum float swing: 4.4in (112mm)
Switching function: SPCO (Single-Pole-Change-Over) relay
Ambient temperature: 32 to 140 °F (0 to 60 °C)
Note: The microswitch contacts are gold-plated and are suitable for use in low-power circuits. Switching high-power circuits can permanently damage the gold-plating. Not suitable for the direct starting of large motors.
Differential: 1in (25mm)
Length into tank: 6in (153mm)
Float diameter: 1.9in (48mm)
Maximum float swing: 4.4in (112mm)
Switching function: SPCO (Single-Pole-Change-Over) relay
Ambient temperature: 32 to 140 °F (0 to 60 °C)
Note: The microswitch contacts are gold-plated and are suitable for use in low-power circuits. Switching high-power circuits can permanently damage the gold-plating. Not suitable for the direct starting of large motors.
Typical Applications:
Low level alarms in lubricating oils and fuel oils
Pump control duty in header tanks
High and low alarms in condensate tanks
Level and pump control in storage tanks
Pump control duty in header tanks
High and low alarms in condensate tanks
Level and pump control in storage tanks
Approvals:
ATEX (Flameproof ATEX 11 1/2G EExd IIc T6, IP66/IP67)
Specifications
Attribute | Value |
---|---|
Device Type | Level Alarm Switch |
Mounting Type | Side Mount |
Switch Output | SPDT |
Body Material | Stainless Steel |
Minimum Operating Temperature | 0°C |
Maximum Operating Temperature | +130°C |
Maximum Current | 15 A ac, 250 mA dc |
Maximum Pressure | 19bar |
Gasket Material | Non Asbestos Carbon Fibre |