- RS-artikelnummer:
- 225-7385
- Tillverkare / varumärke:
- RS PRO
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- RS-artikelnummer:
- 225-7385
- Tillverkare / varumärke:
- RS PRO
Datablad
Lagstiftning och ursprungsland
- COO (Country of Origin):
- GB
Produktdetaljer
RS PRO 3-Phase Asymmetry Relay
The RS PRO 3-Phase Asymmetry relay is used for connecting to a 3-wire or 4-wire supply. The relay is designed to monitor its own supply and in conjunction with an external contactor, disconnect the supply to the load/equipment in the event of a fault occurring.
How does it work?
For the output relay to energise, all phases (and neutral – if applicable) must be present, phase sequence correct, and measured phase asymmetry/unbalance within the set limits. If any of these conditions are not met, the relay (+ contactor) will de-energise, disconnect the supply, and thus protect the equipment.
Features and Benefits
- Monitoring relay
- Function: Phase Asymmetry, Failure, Sequence, Under Voltage plus Time Delay
- Compact 17.5mm DIN rail housing
- Microprocessor-based
- True R.M.S. monitoring measuring phase to phase (3-wire) or phase to neutral (4-wire) voltages
- Selectable nominal voltages to suit the most popular 3-wire or 4-wire supply voltages
- Monitors own supply and detect phase asymmetry/unbalance
- Detects incorrect phase sequence, phase loss, and neutral loss1
- Adjustment for Asymmetry trip level
- Adjustment for Time delay
- DPDT relay output 5A
- Green LED indication for supply status
- Red LED indication for relay status
Electrical Specification
- Input: L1, L2, L3, N
- Supply/monitoring voltage Un: There are 6 nominal voltages to choose from on this product
- 3-wire monitoring: 380, 400, 415V AC
- 4-wire monitoring: 220, 230, 240V AC
- Frequency range: 48 – 63Hz
- Supply variation: 243- 540V AC (L>L)
- Overvoltage category: III (IEC 60664)
- Rated impulse withstand voltage: 4kV (1.2/50μS)
- Power consumption (max.): 2.5VA
- Output: 15, 16, 18 / 25, 26, 28
- Relay configuration: DPDT
- Output rating: AC1 – 250V 5A, AC15 – 250V 2A, DC1 – 25V 5A
- Electrical life: ≥ 150,000 ops at rated load
- Dielectric voltage: 2kV AC (rms) IEC 60947-1
- Rated impulse withstand voltage: 4kV (1.2/50μS) IEC 60664
Dimensions
- Width:17.5 mm x Height: 89 mm x Depth: 66.5 mm
Note
Full specification and setup details can be found on the RS PRO datasheet.
Approvals
- Declarations: CE, RoHS, and C-tick compliant
- Standards Met EMC: Immunity EN 61000-6-2, Emissions: EN 61000-6-4
Specifikationer
Attribute | Value |
---|---|
Monitoring Application | Voltage |
Electrical Phase | 3 |
Contact Configuration | DPDT |
Voltage Sensing Range | 243 → 540 V |
Voltage Sensitivity | Undervoltage |
Mounting Type | DIN Rail |
Phase Sensitivity | Phase Asymmetry, Phase Failure, Phase Sequence |
Time Delay | 0.2 → 10s |
Special Features | Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Asymmetry Trip Level, Adjustment For Time Delay, Green Led Indication For Supply Status |
Maximum Voltage Sensed | 540V |
Dimensions | 89 x 17.5 x 66.5mm |
Terminal Type | Screw |
Length | 89mm |
Maximum Operating Temperature | +60°C |
Width | 17.5mm |
Height | 66.5mm |
Minimum Operating Temperature | -20°C |
Operating Temperature Range | -20 → +60°C |
Minimum Voltage Sensed | 243 V |