DPA71DM23 Datasheet, PDF (1/3 Pages) List of Unclassifed Manufacturers – Monitoring Relays 3-Phase Sequence and Phase Loss

Monitoring Relays
3-Phase Sequence and Phase Loss
Types DPA51, DPA71
DPA51
DPA71
• 3-phase monitoring relay for phase
sequence and phase loss
• Detects when all phases are present and have the
correct sequence
• Measures own power supply
• Power supply range: 208 to 480 VAC (±15%)
• Output: 5 A SPDT relay (DPA51) or 5 A DPDT relay (DPA71)
normally energized
• For mounting on DIN-rail in accordance with
DIN/EN 50 022
• 17.5 mm (DPA51) or 35.5 mm (DPA71) DIN-rail housing
(DIN 43880)
• LED indication for relay and power supply ON
Product Description
Ordering Key
3-Phase relay for detection of
incorrect phase sequence,
total and partial phase loss.
Supply range from 208 to 480
VAC covered by three multi-
voltage relay. For mounting
on DIN-rail. Housing 17.5 mm
wide for SPDT version and
35.5 mm for DPDT version,
suitable both for back and
front panel mounting. The
device detects regenerated
voltage up to 85% of the
nominal voltage (phase-
phase).
Housing
Function
Type
Item number
Output
Power supply
DPA 51 C M44
Type Selection
Mounting
Output
DIN-rail
DIN-rail
SPDT
DPDT
Supply: 208 to 480 VAC Supply: 208 to 240 VAC
DPA 51 C M44
DPA 71 D M23
Supply: 380 to 480 VAC
DPA 71 D M48
Input Specifications
Input
L1, L2, L3
Terminals L1, L2, L3
Measures on own supply
Measuring range
208 to 480 VAC (DPA51CM44) 177 to 550 VAC
208 to 240 VAC (DPA71DM23) 177 to 275 VAC
380 to 480 VAC (DPA71DM48) 323 to 550 VAC
ON-level
> 85% of the phase- phase
voltage
Output Specifications
Output
SPDT or DPDT relay, N.E.
Rated insulation voltage
250 VAC
Contact ratings (AgSnO2)
DPA51 (SPDT):
Resistive loads
AC 1
DC 12
Small inductive loads AC 15
DC 13
DPA71 (DPDT)
Resistive loads
AC 1
Small inductive loads AC 15
DC 13
µ
5 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
5 A @ 250 VAC
3 A @ 250 VAC
3 A @ 24 VDC
Mechanical life
≥ 30 x 10⁶ operations
Electrical life
≥ 10⁵ 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)
Specifications are subject to change without notice (17.07.06)
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