DLA71DB232P Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Monitoring Relays Pump alternating

Monitoring Relays
Pump alternating
Type DLA71
• Pump alternating relay for 2 or 3 pumps
• Output: 2 x 5 A SPST relay or 3 x 5 A SPST
• For mounting on DIN-rail in accordance with
DIN/EN 50 022
• 35.5 mm DIN-rail housing
• LED indication for relay and power supply ON
• Galvanically separated power supply
• Built-in delay for the second or third pump in case of
simultaneous activation is required
• Built-in function for automatic rotation of the pumps
Product Description
DLA71 is relay made to
alternate 2 or 3 pumps in a
multiple pump system. In
case of need (i.e.: overflow)
the second, or even the third
pump can be activated
together with the first one.
In case more than one pump
is required to start at the
same time, the pumps start
10 s after the previous to
avoid big inrush current.
The LED indicates the state
of the alarm and the output
relay.
35.5 mm wide housing suit-
able both for back and front
panel mounting.
Ordering Key
Housing
Function
Type
Item number
Output
Power supply
Number of pumps
Type Selection
Mounting Output
Function
Supply: 24/48 VAC
DIN-rail
DIN-rail
2 x SPST
3 x SPST
For two pumps
For three pumps
DLA 71 D B48 2P
DLA 71 T B48 3P
DLA 71 T B23 3P
Supply: 115/230 VAC
DLA 71 D B23 2P
DLA 71 T B23 3P
Input Specifications
Contact input
Terminals
DLA71...2P (normal mode)
ON/OFF 1 pump
ON/OFF 2 pumps
C, S1
C, S2
DLA71...2P (differential mode)
first pump starts
C, S1
first pump stops
C, S3
second pump start
C, S2
second pump stop
C, S4
DLA71...3P (normal mode)
ON/OFF 1 pump
ON/OFF 2 pumps
ON/OFF 3 pumps
C, S1
C, S2
C, S3
DLA71...3P (full mode)
ON 1 pump
ON 2 pumps
ON 3 pumps
OFF all pumps
C, S1
C, S2
C, S3
C, S4
Disabled
Enabled
Voltage
Current
> 10 kΩ
< 1 kΩ
< 25 V
< 2 mA
Output Specifications
Output
DLA71...2P 2 x SPST NO relay
DLA71...3P 3 x SPST NO relay
Rated insulation voltage
250 VAC
Contact ratings (AgSnO2)
Resistive loads
AC 1
DC 12
Small inductive loads AC 15
DC 13
µ
5 A @ 250 VAC
5 A @ 24 VDC
1.5 A @ 250 VAC
1.5 A @ 24 VDC
Mechanical life
≥ 30 x 10⁶ operations
Electrical life
≥ 10⁵ operations
(at 5 A, 250 V, cos ϕ = 1)
Operating frequency
≤ 7200 operations/h
Dielectric strength
Dielectric voltage
2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 µs)
Specifications are subject to change without notice (01.09.06)
1