Datasheet

Specifications ar
e subject to change without notice (02.04.10)
1
Monitoring Relays
3-Phase Voltage selection
Type DPA55
Product Description Ordering Key
Housing
Function
Type
Item number
Output
Power supply
• 3-phase monitoring relay for phase
s
equence
• 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 50 022
•
17.5 mm DIN-rail housing (DIN 43880)
• LED indication for relay and power supply ON
Type Selection
Mounting Output Supply: 208 to 480 VAC
DIN-rail SPDT DPA 55 C M44
Input
L1, L2, L3 Terminals L1, L2, L3
Measures its own supply
Measuring range 177 to 550 VAC
Hysteresis < 3V
Input Specifications
Output SPDT relay, N.E.
Rated insulation voltage 250 VAC
Contact ratings (AgSnO
2
)µ
Resistive loads AC 1 5 A @ 250 VAC
DC 12 5 A @ 24 VDC
Small inductive loads AC 15 2.5 A @ 250 VAC
DC 13 2.5 A @ 24 VDC
Mechanical life ≥ 30 x 10
6
operations
Electrical life ≥ 10
5
operations
(at 5 A, 250 V, cos ϕ = 1)
Operating frequency ≤ 7200 operations/h
Dielectric strength
Dielectric voltage ≥ 2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 µs)
Output Specifications
DP
A 55 C M44
3-Phase relay for detection of
incorrect mains voltage. Also
detecting incorrect phase
sequence and phase loss.
This unit allows to stop
incorrect power supply volt-
age 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.
Power supply Over
voltage cat. III
Rated operational voltage
(IEC 60664, IEC 60038)
thr
ough 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
Supply Specifications