VMD421H-D-3 BENDER

 Voltage and frequency monitoring of single-phase machines and electrical installations

• Earth fault monitoring in medium-voltage systems via voltage transformers

• Monitoring of battery systems

• Switching machinery and equipment on and off at a certain voltage level

Description:

Insulation coordination acc. to IEC 60664-1/IEC 60664-3

Rated insulation voltage 250 V

Rated impulse voltage/overvoltage category 4 kV/III

Pollution degree 3

Protective separation (reinforced insulation) between: (U1/+, U2/-) -(11-12-14) -(21-22-24)

Voltage test acc. to IEC 61010-1 2.21 kV 

Supply voltage

VME421H-D-1:

Supply voltage Us none (internally supplied by Un: 9,6…150 V)

VME421H-D-2:

Supply voltage Us none (internally supplied by Un: 70…300 V)

Power consumption ≤ 6 VA

Measuring circuit

Measuring range (rms value) (VME421H-D-1) AC/DC 0…150 V

Measuring range (rms value) (VME421H-D-2) AC/DC 0…300 V

Rated frequency fn DC, 15…460 Hz

Frequency display range 10…500 Hz**

Response values

VME421H-D-1:

Undervoltage U < (Alarm 2) AC/DC 9.6…150 V

Overvoltage U > (Alarm 1) AC/DC 9.6…150 V

Preset function:

 Undervoltage U < (0.85 Un)* for Un = 120/60/24 V 102/51/20.4 V

Overvoltage U > (1.1 Un)* for Un = 120/60/24 V 132/66/26.4 V

Resolution of setting U 9.6…49.9 V 0.1 V

Resolution of setting U 50…150 V 1 V

VME421H-D-2:

Undervoltage U < (ALARM 2) AC/DC 70…300 V

Overvoltage U > (ALARM 1) AC/DC 70…300 V

Resolution of setting U 70…300 V 1 V

Preset function:

 Undervoltage U < (0.85 Un)* for Un = 230/120 V 196/102 V

Overvoltage U > (1.1 Un)* for Un = 230/120 V 253/132 V

VME421H…:

Relative uncertainty voltage at 50/60 Hz ±1.5 %, ±2 digits

Relative uncertainty voltage in the range 15…460 Hz ±3 %, ±2 digit

Hysteresis U 1…40 % (5 %)*

Underfrequency Hz < 10…500 Hz**

Overfrequency Hz > 10…500 Hz**

Resolution of setting f 10.0…99.9 Hz 0.1 Hz

Resolution of setting f 100…500 Hz 1 Hz

Preset function:

Underfrequency for fn = 16.7 Hz / 50 Hz / 60 Hz / 400 Hz 15.7 Hz / 49 Hz / 59 Hz / 399 Hz

Overfrequency for fn = 16.7 Hz / 50 Hz / 60 Hz / 400 Hz 17.7 Hz / 51 Hz / 61 Hz / 401 Hz

Hysteresis frequency Hys Hz 0.1…2 Hz (0.2 Hz)*

Relative uncertainty, frequency in the range of 15…460 Hz ±0.2 %, ±1 digit

Time response

Start-up delay t 0…300 s (0 s)*

Response delay ton1/2 0…300 s (0 s)*

Delay on release toff 0…300 s (0.5 s)*

Resolution of setting t, ton1/2, toff (0…10 s) 0.1 s

Resolution of setting t, ton1/2, toff (10…99 s) 1 s

Resolution of setting t, ton1/2, toff (100…300 s) 10 s

Operating time, voltage tae DC/AC 16.7 Hz: ≤ 130 ms, AC 42…460 Hz: ≤ 70 ms

Operating time frequency tae AC 15…460 Hz: ≤ 310 ms

Response time tan tan = tae +ton1/2

Discharging time energy backup on power failure (VME421H-D-1) 3 s

Discharging time energy backup on power failure (VME421H-D-1) 2.5 s at fn < 42 Hz

Discharging time energy backup (VME421H-D-2) ≥ 4 s at DC 70 V

≥ 6 s at DC 80 V/AC 70 V

Charging time energy backup (VME421H-D-1) 60 s

Charging time energy backup (VME421H-D-2) 120 s

Recovery time tb ≤ 300 ms

Displays, memory

Display LC display, multifunctional, not illuminated

Display range measured value (VME421H-D-1) AC/DC 0…150 V

Display range measured value (VME421H-D-2) AC/DC 0…300 V

Operating uncertainty at 50/60 Hz ±1.5 %, ±2 digits

Operating uncertainty voltage in the range of 15…460 Hz ±3 %, ±2 digits

Operating uncertainty in the frequency range 15…460 Hz ±0.2 %, ±1 digit

History memory (HiS) for the first alarm value data record measured values

Password off/0…999 (off)*

Fault memory (M) alarm relay on/off/con (on)*

Switching elements

Number 2 x 1 changeover contacts (K1, K2)

Operating principle N/C operation/N/O operation

K2: Err, U <, U >, Hz <, Hz >, S.AL (undervoltage U <: N/C operation n.c.)*

K1: Err, U <, U >, Hz <, Hz >, S.AL (overvoltage U >: N/O operation n.o.)*

Electrical endurance, number of cycles 10,000

Contact data acc. to IEC 60947-5-1

Utilisation category AC-13 AC-14 DC-12 DC-12 DC-12

Rated operational voltage 230 V 230 V 24 V 110 V 220 V

Rated operational current 5 A 3 A 1 A 0.2 A 0.1 A

Minimum contact rating 1 mA at AC/DC ≥ 10 V

Environment/EMC

EMC IEC 61326-1

Operating temperature -25…+55 °C

Classification of climatic conditions acc. to IEC 60721

Stationary use (IEC 60721-3-3) 3K23 (except condensation and formation of ice)

Transport (IEC 60721-3-2) 2K11 (except condensation and formation of ice)

Long-term storage (IEC 60721-3-1) 1K22 (except condensation and formation of ice)

Classification of mechanical conditions acc. to IEC 60721

Stationary use (IEC 60721-3-3) 3M11

Transport (IEC 60721-3-2) 2M4

Long-term storage (IEC 60721-3-1) 1M12

Connection

Connection type screw-type terminal or push-wire terminal

Connection screw terminals

Connection properties 

rigid/ flexible 0.2…4 / 0.2…2.5 mm2

 / AWG 24…12

Multi-conductor connection (2 conductors with the same cross section):

rigid/ flexible 0.2…1.5 mm2

 / 0.2…1.5 mm2

Stripping length 8…9 mm

Tightening torque 0.5…0.6 Nm

Connection push-wire terminals

Connection properties

 rigid 0.2…2.5 mm2

 (AWG 24…14)

flexible

without ferrules 0.75…2.5 mm2

 (AWG 19…14)

with ferrules 0.2…1.5 mm2

 (AWG 24…16)

Stripping length 10 mm

Opening force 50 N

Test opening, diameter 2.1 mm

Other

Operating mode continuous operation

Mounting any position

Degree of protection, internal components (DIN EN 60529) IP30

Degree of protection, terminals (DIN EN 60529 IP20

Enclosure material polycarbonate

Screw mounting 2 x M4 with mounting clip

DIN rail mounting acc. to IEC 60715

Flammability class UL94 V-0

Documentation number D00141

Weight ≤ 240 g

( )* = factory

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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