dla71db Carlo Gavazzi Inc., dla71db Datasheet

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dla71db

Manufacturer Part Number
dla71db
Description
Monitoring Relays Pump Alternating Type Dla71
Manufacturer
Carlo Gavazzi Inc.
Datasheet
Monitoring Relays
Pump alternating
Type DLA71
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
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
Type Selection
Mounting
DIN-rail
DIN-rail
Input Specifications
Contact input
DLA71...2P (normal mode)
DLA71...2P (differential mode)
DLA71...3P (normal mode)
DLA71...3P (full mode)
Specifications are subject to change without notice (25.06.07)
ON/OFF 1 pump
ON/OFF 2 pumps
first pump starts
first pump stops
second pump start
second pump stop
ON/OFF 1 pump
ON/OFF 2 pumps
ON/OFF 3 pumps
ON 1 pump
ON 2 pumps
ON 3 pumps
OFF all pumps
Disabled
Enabled
Voltage
Current
Empting mode
Filling mode
can
Output
2 x SPST
3 x SPST
be
activated
Function
For two pumps
For three pumps
Terminals
C, S1
C, S2
C, S1
C, S3
C, S2
C, S4
C, S1
C, S2
C, S3
C, S1
C, S2
C, S3
C, S4
> 10 kΩ
< 1 kΩ
< 25 V
< 2 mA
N.O. contacts
N.C. contacts
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.
DLA 71 D B48 2P
DLA 71 T B48 3P
Output Specifications
Output
Contact ratings (AgSnO
Mechanical life
Electrical life
Operating frequency
Dielectric strength
• 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
• 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
• Built-in function for automatic rotation of the pumps
Ordering Key
Housing
Function
Type
Item number
Output
Power supply
Number of pumps
Supply: 24/48 VAC
Rated insulation voltage
Resistive loads
Small inductive loads AC 15
Dielectric voltage
Rated impulse withstand volt. 4 kV (1.2/50 µs)
DIN/EN 50 022
simultaneous activation is required
DLA71...2P
DLA71...3P
DC 12
DC 13
AC 1
2
)
Supply: 115/230 VAC
DLA 71 D B23 2P
DLA 71 T B23 3P
250 VAC
µ
5 A @ 250 VAC
5 A @ 24 VDC
1.5 A @ 250 VAC
1.5 A @ 24 VDC
≥ 30 x 10
≥ 10
(at 5 A, 250 V, cos ϕ = 1)
≤ 7200 operations/h
2 kVAC (rms)
DLA 71 T B23 3P
2 x SPST NO relay
3 x SPST NO relay
5
operations
6
operations
1

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dla71db Summary of contents

Page 1

Monitoring Relays Pump alternating Type DLA71 Product Description DLA71 is relay made to avoid big inrush current. alternate pumps in a multiple pump system. In The LED indicates the state case of need (i.e.: overflow) of the ...

Page 2

DLA71 Supply Specifications Power supply Overvoltage cat. III Rated operational voltage (IEC 60664, IEC 60038) through terminals: A1 A3, A2 B48: 24/48 VAC ± 15 Hz, insulated B23: 115/230 VAC ± 15 ...

Page 3

DLA71 Wiring Diagrams DLA71...2P 48/230 VAC 24/115 VAC Operation Diagrams Example 1 (empting mode Example 2 (empting mode) ...

Page 4

DLA71 Operation Diagrams Example 3 (empting mode Example 4 (empting mode Example 5 (filling mode) ...

Page 5

Dimensions 35.5 35.5 Specifications are subject to change without notice (25.06.07) 67.2 67.2 18.7 18.7 5 ...

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