Monitoring Relays
3-Phase Sequence and Phase Loss
Type EQB62DN55
Product Description
3-Phase relay for detection of incorrect phase sequence,
total or partial phase loss. Supply range from 208 to 480 VAC.
For mounting on DIN-rail. Housing 17.5mm wide,SPDT relay
output,suitable for back and front panel mounting.
The device detects regenerated voltage up to 85% of the
nominal voltage (phase to phase).
Property
• 3-phase monitoring relay for phase
sequence and phase loss
• Detects when all phases are present and have the
correct sequence
• Measures its own power supply
• Power supply range: 208 to 480 VAC (±±15%
• Output: 1 A SPDT relay normally energized
• For mounting on DIN-rail in accordance with
DIN/EN 10 022
• ±7.1 mm DIN-rail housing (DIN 43880%
• LED indication for relay and power supply ON
Type Selection
Mounting
Output
Supply: 208 to 480 VAC
DPA 1± C M44
DIN-rail
SPDT
Input Specifications
Input
L1, L2, L3
Output Specifications
Output
SPDT relay, N.E.
Terminals L1, L2, L3
Measures its own supply
Rated insulation voltage
Contact ratings (AgSnO2)
250 VAC
μ
Measuring range
208 to 480 VAC
Resistive loads
AC 1
DC 12
5 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
177 to 550 VAC
ON-level
> 85% of the phase- phase
voltage
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
≥ 30 x 106 operations
Supply Specifications
≥ 105 operations
(at 5 A, 250 V, cos ϕ = 1)
≤ 7200 operations/h
Power supply
Rated operational voltage
through terminals: L1, L2, L3
Overvoltage cat. III
(IEC 60664, IEC 60038)
Operating frequency
Dielectric strength
Dielectric voltage
208 to 480 VAC 15%,
45 to 65 Hz
≥ 2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 μs)
Rated operational power
13 VA @ 400 VAC, 50 Hz
Supplied by L2 and L3
General Specifications
Reaction time
Alarm ON delay
Alarm OFF delay
Housing
Dimensions
Material
< 100 ms
17.5 x 81 x 67.2 mm
PA66 or Noryl
< 300 ms
Accuracy
Temperature drift
Repeatability
(15 min warm-up time)
1000 ppm/°C
0.5%
Weight
Screw terminals
Tightening torque
Approx. 75 g
Max. 0.5 Nm
Indication for
Power supply ON
Relay ON
acc. to IEC 60947
LED, green
LED, yellow
Product standard
Approvals
EN 60947-5-1
UL, CSA
CCC (GB14048.5)
Environment
Degree of protection
Pollution degree
Operating temperature
@ Max. voltage, 50 Hz
@ Max. voltage, 60 Hz
Storage temperature
IP 20
3
CE Marking
L.V. Directive 2006/95/EC
EMC Directive 2004/108/EC
EMC
Immunity
Emissions
-20 to +60°C, R.H. < 95%
-20 to +50°C, R.H. < 95%
-30 to +80°C, R.H. < 95%
According to EN 61000-6-2
According to EN 61000-6-3
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