| Part Number: | CDV6 | - | 5 | 16 | P |
|---|---|---|---|---|---|
| Explanation: |
Product Family CDV6 - Voltage monitoring relay |
Monitoring Function 3 - Phase sequence and phase-loss monitoring |
Output Contact Rating 10 - 10A contact option |
Voltage System P - Three-phase three-wire, phase-to-phase; 220/230/240/380/400/415/440/460VAC nominal selections |
CDV6 three-phase voltage relays monitor phase sequence, phase loss and selected voltage faults through one changeover output. Choose a P version for line-to-line monitoring in a three-wire system or an N version for line-to-neutral monitoring in a four-wire system. Six function codes provide different combinations of adjustable and fixed thresholds.
| Function code | Overvoltage | Undervoltage | Voltage imbalance | Action delay | Phase sequence / phase loss |
|---|---|---|---|---|---|
| 3 | — | — | — | No adjustable delay specified | Both |
| 4 | Adjustable 2–20% above nominal | Adjustable 2–20% below nominal | — | Adjustable 0.1–10s | Both |
| 5 | Adjustable 2–20% above nominal | Adjustable 2–20% below nominal | Fixed 8% | Adjustable 0.1–10s | Both |
| 6 | Adjustable 2–20% above nominal | Adjustable 2–20% below nominal | Adjustable 5–15% | Fixed 2s | Both |
| 7 | — | — | Adjustable 5–15% | Adjustable 0.1–10s | Both |
| 8 | Fixed 15% above nominal | Fixed 15% below nominal | Fixed 8% | Fixed 2s | Both |
The percentage voltage limits are deviations from the selected nominal voltage. Use the function-specific values above: the adjustable family ranges do not apply to fixed-threshold models. Harmonic-resistant configurations are available for applications with greater electrical interference.
| Complete model | Function code | Voltage system | Output contact |
|---|---|---|---|
| CDV6-316P | 3 | P: three-phase three-wire; line-to-line | One changeover; Ith 16A; AC-15 Ie 5A at 250VAC |
| CDV6-416P | 4 | ||
| CDV6-516P | 5 | ||
| CDV6-616P | 6 | ||
| CDV6-716P | 7 | ||
| CDV6-816P | 8 | ||
| CDV6-316N | 3 | N: three-phase four-wire; line-to-neutral | |
| CDV6-416N | 4 | ||
| CDV6-516N | 5 | ||
| CDV6-616N | 6 | ||
| CDV6-716N | 7 | ||
| CDV6-816N | 8 |
| Parameter | P version | N version |
|---|---|---|
| Monitoring terminals | L1, L2, L3 | L1, L2, L3, N |
| Operating power terminals | L1–L2 | L1–N |
| Nominal voltage choices | 220 / 230 / 240 / 380 / 400 / 415 / 440 / 460VAC, phase-to-phase | 127 / 132 / 138 / 220 / 230 / 240 / 254 / 265VAC, phase-to-neutral |
| Measurement range | 176–552V | 101–318V |
| Position | Code | Meaning |
|---|---|---|
| 1: Family | CDV6 | Voltage monitoring relay |
| 2: Function | 3 / 4 / 5 / 6 / 7 / 8 | Monitoring combinations and threshold settings in the function table |
| 3: Contact rating | 10 | 10A contact option |
| 16 | 16A contact version used by the twelve complete models above | |
| 4: Voltage system | P | Three-wire, phase-to-phase nominal voltage selection |
| N | Four-wire, phase-to-neutral nominal voltage selection |
| Parameter | Rating |
|---|---|
| Measurement | Own operating voltage; true RMS |
| Frequency range | 45–65Hz |
| Voltage measurement error | ≤1% |
| Voltage hysteresis | Fixed 2% |
| Setting method / accuracy | Knob / 10% |
| Power-on delay / reset time | 0.5s / 1s |
| Temperature fluctuation error | 0.05%/°C, referenced to 20°C |
| 16A output contact | One changeover; 16A contact rating at 250VAC/24VDC; AC-15 Ie 5A at 250VAC |
| Minimum switching power | 500mW |
| Indicators | Green supply LED; red relay output LED |
| Mechanical / resistive electrical life | 1×10⁷ / 1×10⁵ operations |
| Operating temperature | −20 to +55°C |
| Storage and transport temperature | −35 to +75°C |
| Mounting | 35mm DIN rail; any orientation |
| Protection / altitude / pollution degree | IP20 / ≤2000m / 2 |
| Conductors / tightening torque | 1×2.5mm² or 2×1.5mm² / 0.8N·m |
| Overall dimensions / weight | 90×18×65mm / 67g |
Compliance references are CCC: GB/T14048.5 and CE: EN60947-5-1. Applicable documentation is available for the ordered model. The 24VDC contact switching rating does not indicate a DC supply input for these AC monitoring versions.
Connect all required phases, and neutral for an N version, to the monitoring terminals. Use the single 11/12/14 changeover to control the contactor circuit. The connection diagram includes a contactor example; select its control circuit to match the relay contact ratings.
Applications include equipment monitoring for tower cranes, air conditioners, elevators, agricultural equipment and refrigerated trucks, prevention of reverse operation, normal/emergency supply switching control and phase-loss monitoring for power loads. Select the function and voltage system for the installation.
These industrial relays are not intended for exceptionally high-reliability nuclear, gas or power systems; personal or property safety functions; harsh outdoor, contaminated, electromagnetic, vibration or shock environments; fire or explosion hazards; or military and aerospace applications unless specifically designed for that use and confirmed in writing.
