CDV6-1/2 Single-Phase Voltage Monitoring Relays

Series Part Number

Part Number: CDV6 - 1 16 Z
Explanation:

Product Family

CDV6 - Voltage monitoring relay

Monitoring Function

1 - Knob-selected overvoltage or undervoltage monitoring, with locked or non-locked operation
2 - Combined overvoltage and undervoltage monitoring

Output Contact Rating

10 - 10A version; one changeover
16 - 16A version; one changeover

Rated Operating Voltage

Z - 100–240VAC/DC
M - 220VAC

Description

CDV6-1/2 relays monitor their own single-phase operating voltage using true RMS measurement. The CDV6-1 selects overvoltage or undervoltage monitoring, with locked and non-locked modes; the CDV6-2 monitors both limits. Both use one changeover output and fit an 18mm-wide DIN rail enclosure.

Models and monitoring functions

ModelFunctionHysteresisOutput
CDV6-1Overvoltage or undervoltage selected by knob; locked or non-locked operationAdjustable 5–20%One changeover, terminals 11/12/14
CDV6-2Combined overvoltage and undervoltage with separately adjustable upper and lower thresholdsFixed 3%One changeover, terminals 11/12/14
Complete modelMonitoring functionRated supplyContact rating
CDV6-116ZSelectable overvoltage/undervoltage100–240VAC/DCOne changeover; Ith 16A; AC-15 Ie 5A at 250VAC
CDV6-116M220VAC
CDV6-216ZCombined overvoltage and undervoltage100–240VAC/DC
CDV6-216M220VAC

Ordering options

Four-position CDV6 single-phase voltage relay ordering layout
Ordering layout: product family, monitoring function, contact rating and operating voltage. Complete models use one hyphen after CDV6.
PositionCodeMeaning
1: FamilyCDV6Voltage monitoring relay
2: Monitoring function1Knob-selected overvoltage or undervoltage monitoring
2Combined overvoltage and undervoltage monitoring
3: Contact rating1010A version
1616A version
4: Operating voltageZ100–240VAC/DC
M220VAC

The electrical range also includes 12VDC and 24–48VAC/DC versions. These low-voltage alternatives have no assigned suffix in the ordering options above; select the voltage shown on the individual relay. Example: CDV6-116Z selects function 1, a 16A contact version and 100–240VAC/DC operation.

Electrical and environmental ratings

ParameterRating
Measured quantityOwn operating voltage, true RMS
Power and measurement terminalsA1(+), A2(−)
Supply options12VDC; 24–48VAC/DC; Z: 100–240VAC/DC; M: 220VAC
AC supply frequency45–65Hz
Rated insulation voltage460V
Voltage measurement error≤1%
Setting method and accuracyKnob; 10%
Action delay Tt0.1–10s; 10%
Power-on delay0.5s
Reset time1s
Temperature fluctuation error0.05%/°C, referenced to 20°C
Output contact ratingsOne changeover; 10A or 16A version; contact ratings 250VAC/24VDC
AC-15 operational current10A version: Ie 2.5A at 250VAC; 16A version: Ie 5A at 250VAC
Minimum switching power500mW
IndicatorsGreen supply LED; red output relay LED
Mechanical life1×10⁷ operations
Electrical life1×10⁵ operations with resistive load
Operating temperature−20 to +55°C
Storage and transport temperature−35 to +75°C
ProtectionIP20
Mounting35mm DIN rail; any orientation
Installation altitude / pollution degree≤2000m / 2
Conductors / tightening torque1×2.5mm² or 2×1.5mm² / 0.8N·m
Overall dimensions / weight90×18×65mm / 67g

Contact current and switching voltage ratings describe the output circuit; they do not change the relay's selected supply voltage. Compliance references are CCC: GB/T14048.5 and CE: EN60947-5-1. Applicable documentation is available for the ordered model.

Threshold response and panel settings

For CDV6-1, select U> or U< and the required latch behavior, then set voltage U, hysteresis H and action delay Tt. Non-locked operation returns after the voltage crosses the hysteresis boundary; locked operation retains the tripped state until the supply is reset. For CDV6-2, set the upper limit U>, lower limit U< and Tt. The diagrams distinguish a sustained excursion from one shorter than Tt.

CDV6-1 four monitoring modes and CDV6-2 upper and lower voltage response
Overvoltage and undervoltage timing charts, including locked and non-locked CDV6-1 modes and the CDV6-2 voltage window. U is measured voltage, H is hysteresis and Tt is action delay.
CDV6-1 and CDV6-2 front controls and LED indicators
CDV6-1 has function, voltage, hysteresis and delay controls. CDV6-2 has upper-voltage, delay and lower-voltage controls.

Wiring and mounting

Connect the monitored supply to A1/A2 and use the single changeover output at 11/12/14. The AC and DC connection symbols below show the applicable supply arrangements. This single-phase family monitors voltage magnitude; its wiring has no three-phase sequence inputs.

CDV6 single-phase voltage relay AC and DC wiring
AC and DC supply connections and one changeover output.
CDV6 18mm relay enclosure dimensions
Dimensions in millimetres: 90 overall height, 18 width, 65 depth, with 31 and 19 top profile references.

Application conditions

Typical uses include voltage monitoring for electrical equipment or compressors and emergency/backup supply switching control. These industrial relays are not intended for nuclear, gas or power systems requiring exceptional long-term reliability; 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.