Pressure switch MDR 43
Downloads
Technical specifications
- Medium
- Air, Water, Oil
- Voltage type
- Alternating current (AC) – single-phase
- Type
- Electro-mechanical
- Voltage
- ≤ 250 V
- Contact function
- 1 NC / 1 NO contact
- Gold-plated contacts
- no
- Pressure adjustment
- Pressure difference adjustment (standard)
- Pressure range (bar)
- ≤ 16 Bar
- Pressure coupling
G1/2" female thread (main pressure coupling G1/2", pressure connector material = die-cast aluminium)
G1/4" female thread (main pressure coupling G1/4", pressure connector material = die-cast aluminium)
- Overload relay
- not possible
- Cable entry gland
with 2 x WN (sealing grommet)
(accessory PG)
- Relief valve
- no EV or AEV possible
- Rated frequency
- 50 Hz / 60 Hz
- Rated operating current (Ie)
10 (8) A
- max. media temperature
80°C
- Motor switching capacity
- 4,0 kW
- Protection class
- IP 44
Applications
At a glance
- Control pressure switch for AC voltage
- for pumps / for compressors
- for oil, water, and air
- 2-pole (1 x NO + 1 x NC)
- Motor switching capacity 1.1 kW
- Cut-out pressure ≤16 bar
The pressure switch MDR-43 is suitable for use in oil, water and air, and is fitted with 1 NC and 1 NO contact, plus die-cast aluminium pressure connector and CR diaphragm. The MDR-43 pressure switch is fitted as standard with the possibility for pressure difference adjustment. Two adjusting screws permit switching point and hysteresis to be adjusted, whereby the cut-out point is first adjustedvia the main pressure spring, and then the cut-in point via the pressure difference setting. 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 on the pressure switch. If the point lies outside the shaded area, this pair of values cannot be adjusted on the pressure switch. Two adjusting screws permit switching point and hysteresis to be adjusted, whereby the cut-in point is first adjusted via the main pressure spring and then the cut-out point via the pressure difference setting.
Sealing grommet WN for MDR 43
Mounting bracket MW4 for pressure switch MDR 43
Cable entry gland PG 13.5 for pressure switch MDR 43
Cable entry gland with tension relief PG 13.5z for pressure switch MDR 43
Cable entry gland with tension relief & kink protector PG 13.5zk for pressure switch MDR 43
Threaded coupling PG 13.5 G for pressure switch MDR 43 cable entry gland
