- RS Stock No.:
- 225-7387
- Brand:
- RS PRO
On back order for despatch 17/05/2024, delivery within 10 working days from despatch date.
Added
Price (ex. GST) Each
$219.06
(exc. GST)
$240.97
(inc. GST)
Units | Per unit |
1 - 4 | $219.06 |
5 + | $180.27 |
- RS Stock No.:
- 225-7387
- Brand:
- RS PRO
Technical data sheets
Legislation and Compliance
- COO (Country of Origin):
- GB
Product Details
RS PRO 3-Phase Under/Overvoltage Relay with Phase Sequence
The RS PRO 3-Phase monitoring 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
- 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 most popular 3-wire or 4-wire supply voltages
- Monitors own supply and detects if one or more phases exceed the set Under or Over voltage trip levels
- Detects incorrect phase sequence, phase loss and neutral loss1
- Adjustments for Under and Over voltage trip levels and Time delay
- DPDT relay output 5A
- Green LED indication for supply status and Red LED 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 (1.2/50 μS)
- 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
Specifications
Attribute | Value |
---|---|
Monitoring Application | Phase, Voltage |
Electrical Phase | 3 |
Contact Configuration | DPDT |
Voltage Sensitivity | Overvoltage, Undervoltage |
Mounting Type | DIN Rail |
Phase Sensitivity | Phase Failure, Phase Sequence |
Width | 17.5mm |
Terminal Type | Screw |
Related links
- RS PRO Phase Monitoring Relay DIN Rail, Surface Mount
- RS PRO Phase Monitoring Relay SPDT Voltage Assemmetry, DIN Rail
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- RS PRO Voltage Monitoring Relay DPDT, DIN Rail
- RS PRO Phase 3 Phase Maximum of 280 V, DIN Rail
- RS PRO Phase Monitoring Relay SPDT, DIN Rail
- RS PRO Phase 3 Phase 243 → 540 V Surface Mount