Monitoring Relays
3-Phase Voltage
Type DPA55CM44
Product Description
3-Phase relay for detection of incorrect mains voltage. Also detect-
-ing incorrect phas sequence and phase loss. This unit allows to
stop incorrect power supply voltage when different from the
desired one.
Power supply range from 208 to 480 VAC plus selection of the
different possible nominal voltages. For mounting on DIN-rail.
Housing 17.5 mm wide suitable both for back and front panel
mounting.
Property
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3-phase monitoring relay for phase equences
Detects if voltage is at the desired level (± 10% or ±15%)
Measures its own power supply
Wide power supply range: 208 to 480 VAC (±15%)
Output: 5 A SPDT relay normally energized
For mounting on DIN-rail in accordance with DIN/EN 50022
17.5 mm DIN-rail housing (DIN 43880)
LED indication for relay and power supply ON
Type Selection
Mounting
DIN-rail
Output
SPDT
Supply: 208 to 480 VAC
DPA 55 C M44
Input Specifications
Input
L1, L2, L3
Measuring range
Hysteresis
Terminals L1, L2, L3
Measures its own supply
177 to 550 VAC
< 3V
Output Specifications
Output
Rated insulation voltage
Contact ratings
(AgSnO
2
)
AC 1
Resistive loads
DC 12
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
SPDT relay, N.E.
250 VAC
μ
5 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
≥
30 x 10
6
operations
≥
10
5
operations
(at 5 A, 250 V, cos
ϕ
= 1)
≤
7200 operations/h
Supply Specifications
Power supply
Overvoltage cat. III
Rated operational voltage
(IEC 60664, IEC 60038)
through terminals: L1, L2, L3 208 to 480 VAC ± 15%,
45 to 65 Hz
Rated operational power
18 VA @ 400 VAC, 50 Hz
Supplied by L1 and L3
Operating frequency
Dielectric strength
≥
2 kVAC (rms)
Dielectric voltage
Rated impulse withstand volt. 4 kV (1.2/50 μs)
General Specifications
Reaction time
Alarm ON delay
Alarm OFF delay
Accuracy
Temperature drift
Repeatability
Indication for
Power supply ON
Relay ON
Environment
Degree of protection
Pollution degree
Operating temperature
@ Max. voltage, 50 Hz
@ Max. voltage, 60 Hz
Storage temperature
< 100 ms
< 300 ms
(15 min warm-up time)
± 1000 ppm/°C
± 0.5% on full scale
LED, green
LED, yellow
IP 20
2
-20 to +60°C, R.H. < 95%
-20 to +50°C, R.H. < 95%
-30 to +80°C, R.H. < 95%
Housing
Dimensions
Material
Weight
Screw terminals
Tightening torque
Product standard
Approvals
CE Marking
EMC
Immunity
Emissions
17.5 x 81 x 67.2 mm
PA66 or Noryl
Approx. 80 g
Max. 0.5 Nm
acc. to IEC 60947
EN 60255-6
UL, CSA
L.V. Directive 2006/95/EC
EMC Directive 2004/108/EC
According to EN 60255-26
According to EN 61000-6-2
According to EN 60255-26
According to EN 61000-6-3
NIC [ NIC-COMPONENTS CORP. ]
