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参数资料
| 型号： | DLA71TB233P |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Monitoring Relays Pump alternating |
| 中文描述： | 监控继电器泵交替 |
| 文件页数： | 1/4页 |
| 文件大小： | 128K |
| 代理商： | DLA71TB233P |
Specifications are subject to change without notice (01.09.06)
1
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 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
Ordering Key
Housing
Function
Type
Item number
Output
Power supply
Number of pumps
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
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
first pump stops
second pump start
second pump stop
C, S1
C, S3
C, S2
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 k
< 1 k
< 25 V
< 2 mA
Input Specifications
DLA 71 T B23 3P
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.
Type Selection
Mounting
Output
Function
Supply: 24/48 VAC
Supply: 115/230 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 D B23 2P
DLA 71 T B23 3P
Output
DLA71...2P
DLA71...3P
2 x SPST NO relay
3 x SPST NO relay
250 VAC
μ
5 A @ 250 VAC
5 A @ 24 VDC
1.5 A @ 250 VAC
1.5 A @ 24 VDC
≥
30 x 10
6
operations
≥
10
5
operations
(at 5 A, 250 V, cos
= 1)
≤
7200 operations/h
Rated insulation voltage
Contact ratings
(AgSnO
)
Resistive loads
AC 1
DC 12
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
Operating frequency
Dielectric strength
Dielectric voltage
Rated impulse withstand volt. 4 kV (1.2/50 μs)
2 kVAC (rms)
Output Specifications
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