Monitoring Relays
True RMS 3-Phase, 3-Phase+N, Multi-function
Type DPB71
鈥?TRMS 3-phase over and under voltage,
phase sequence and phase loss monitoring relay
鈥?Detects when all 3 phases are present and have the
correct phase sequence
鈥?Detects if all the 3-phase-phase or phase-neutral volt-
ages are within the set limits
鈥?Upper and lower limits separately adjustable
鈥?Measures on own power supply
鈥?Selection of measuring range by DIP-switches
鈥?Adjustable voltage on relative scale
鈥?Adjustable delay function (0.1 to 30 s)
鈥?Output: 5 A SPDT relay N.E.
鈥?For mounting on DIN-rail in accordance with
DIN/EN 50 022
鈥?35.5 mm DIN-rail housing
鈥?LED indication for relay, alarm and power supply ON
Product Description
3-phase or 3-phase+neutral
line voltage monitoring relay
for phase sequence, phase
loss, over and under voltage
(separately adjustable set
points) with built-in time
delay function.
Supply ranges from 208 to
480 VAC covered by two
multivoltage relays.
35.5 mm wide housing suit-
able both for back and front
panel mounting.
Ordering Key
Housing
Function
Type
Item number
Output
Power supply
DPB 71 C M23
Type Selection
Mounting
DIN-rail
Output
SPDT
Supply: 208 to 240 VAC
DPB 71 C M23
Supply: 380 to 480 VAC
DPB 71 C M48
Input Specifications
Input
L1, L2, L3, N
Note: Connect the neutral only
if it is intrinsically at the star
centre
Measuring ranges
208 to 240
鈭?/div>
VAC
380 to 480
鈭?/div>
VAC
Ranges
Upper level
Lower level
Terminals L1, L2, L3, N
Measure on own supply
Output Specifications
Output
Rated insulation voltage
Contact ratings
(AgSnO
2
)
Resistive loads
AC 1
DC 12
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
SPDT relay
250 VAC
碌
5 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
鈮?/div>
30 x 10
6
operations
鈮?/div>
10
5
operations
(at 5 A, 250 V, cos
蠒
= 1)
鈮?/div>
7200 operations/h
177 to 275
鈭?/div>
VAC
323 to 550
鈭?/div>
VAC
+2 to +22%
of the nominal voltage
-22 to -2%
of the nominal voltage
Note:
The input voltage
must not exceed the maximum
rated voltage or drop below
the minumum rated voltage
reported above.
Hysteresis
Set points from 2 to 5%
1%
Set points from 5 to 22%
2%
Operating frequency
Dielectric strength
Dielectric voltage
2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 碌s)
Supply Specifications
Power supply
Rated operational voltage
through terminals:
M23 - Delta Voltage:
M48 - Delta Voltage:
M48 - Star Voltage:
Rated operational power
DPB71CM23
DPB71CM48
Overvoltage cat. III
(IEC 60664, IEC 60038)
L1, L2, L3, N
208 to 240 VAC 鹵 15%
45 to 65 Hz
380 to 480 VAC 鹵 15%
45 to 65 Hz
220 to 277 VAC 鹵 15%
45 to 65 Hz
13 VA @ 230
鈭哣AC,
50 Hz
13 VA @ 400
鈭哣AC,
50 Hz
Supplied by L1 and L3
Specifications are subject to change without notice (23.10.06)
1
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Monitoring Relays True RMS 3-Phase, 3-Phase+N, Multi-functio...
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英文版
Monitoring Relays True RMS 3-Phase, 3-Phase+N, Multi-functio...
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英文版
Monitoring Relays True RMS 3-Phase, 3-Phase+N, Multi-functio...
ETC
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英文版
Monitoring Relays True RMS 3-Phase, 3-Phase+N, Multi-functio...
ETC [ETC]
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