Pressure switch MDR 5
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Technical specifications
- Medium
- Water
- Voltage type
- Three-phase current (A.C.)
- Type
- Electro-mechanical
- Voltage
- ≤ 400 V
- Contact function
- 3 NC contacts
- Gold-plated contacts
- no
- Pressure adjustment
- Pressure difference adjustment (standard)
- Pressure range (bar)
- ≤ 8 Bar
- Pressure coupling
G ½“ female thread (main pressure coupling G ½“, pressure connector material = stainless steel, brass, or steel)
- Overload relay
- not possible
- Cable entry gland
with M20
- Relief valve
- without (accessory EV, AEV)
- Mechanical On/Off (EA)
- no
- Rated frequency
- 50 Hz / 60 Hz
- Rated operating current (Ie)
-
- max. media temperature
70°C
- Motor switching capacity
- 5,5 kW
- Protection class
- IP 65
Applications
At a glance
- High-performance pressure switch for 3-phase voltage
- for pumps
- Pressure connector material = stainless steel, brass, or galvanised steel
- IP 65
- incl. M 20 cable entry glands
- Motor switching capacity 5.5 kW
- max. cut-out pressure 8 bar
- 3-pole (NC)
Its robust and hard-wearing design ensures a long service life, also under high loads. Applications, e.g. in pump shafts, domestic water systems with stainless steel pump, etc.
The MDR-5 pressure switch is fitted as standard with the possibility for pressure difference adjustment. A handwheel permits switching point and hysteresis to be adjusted, whereby the cut-out pressure is adjusted with the handwheel in the upper position (the spindle also turns). By selecting a pair of values for cut-in and cut-out pressures, an intersection point is determined in the diagram. If the point lies within the shaded area, this pair of values can be adjusted (without tools) on the pressure switch. If the point lies outside the shaded area, this pair of values cannot be adjusted on the pressure switch.
Sealing grommet WN M20 for pressure switch MDR 5 cable entry gland
Hood H5 for pressure switch MDR 5
Hood H5 K for pressure switch MDR 5
Cable entry gland with tension relief & kink protector M20 ZK and M20 LK for pressure switch MDR 5
Mounting bracket MW5 for pressure switch MDR 5
3-pole thermal overload relay R 5 18.0 for pressure switch MDR 5
Sealing grommet VS M20 for pressure switch MDR 5 cable entry gland
Cable entry gland with tension relief M20 Z and M20l for pressure switch MDR 5
Unloader valve EV5e and EV5ei for pressure switch MDR 5
Starting unloader valves AEV 5 and AEV5i for pressure switch MDR 5
Unloader valve EV5 and EV5i for pressure switch MDR 5
