Zubr D25t - User Manual

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Supply voltage (100 – 420 V, 50 Hz) served on terminals 1

and 2, phase (L) is connected to terminal location 2, and

the neutral conductor (N) to terminal 1. The connecting

wires of the load phases are connected to the terminal 3

and to the neutral terminal block (not included).

CONNECTION SCHEMES

Voltage relay ZUBR Dt (hereinafter referred to as the

device designed to protect electrical equipment from

critical mains voltage surges. Equipment sensitive to line

voltage deviations: refrigerators, TVs, video and audio

equipment, computers, etc.

)

TECHNICAL DATA

Cutting wires of wiring to which connects voltage relay should

meet the value of electric current, which consumes voltage.

It is also necessary to take into account that the load power

of 3 000 VA at 220 V will be 4 400 VA at 270 V. Therefore,

please, do not allow the relay power handling to exceed its

certified value at the maximum voltage deviation to the

upper limit. If the relay power handling exceeds its certified

value use the electric contactor (magnetic starter, power

relay) which is designed for this power capacity see

diagram 3 in the manual with the appendix on the website,

which is listed under Contacts section

(

Scheme 1. Option of wiring diagram Scheme 2 . Option of the connection diagram

INPUT

РЕL N

ZUBR D63t

Voltage relay

63 A

300 mA

Input

С16

16А

QF1

40 А

QFInput

ZUBR

D50t

1 2 3

Before the installation and operation of the device,

PLEASE READ BY THE END OF THIS

DOCUMENT. This will help to avoid possible danger,

mistakes and misunderstandings.

IT IS FORBIDDEN TO USE VOLTAGE RELAY TO

PROTECT EQUIPMENT, which runs from the

sources of modified sine, uninterruptible power

supply output voltage sinusoid are not Long operation

(more than 5 minutes) from the following sources

voltage may damage ZUBR and lead to not warranty

repair.

IF A NEUTRAL TERMINAL IS NOT USED TO

CONNECT A NEUTRAL WIRE TO THE DEVICE,

the connection of the mains neutral wire to the load

neutral in terminal 1 of the device is allowed only if it

is crimped in the sleeve.

The number of operating cycles without load

Relay type

electromagnetic

not less 00 cycles 1 0 000

not less 50 cycles 0 000

not less 0 cycles 10 000 not less cycles 10 000

polarized

The number of operating cycles under load

Break-time

at lower

Break-time at increasing

Rated power

> 120 V

< 120 V

not more than 1,2 сse

0,01

–0,03 сse

100

420

not less than

not more than

upper 220–280

120–210

lower V

0,01

–0,03 сse

V5 500 А

30 А

25 А

D t25

Model

IP to GOST 14254

IP20

16 mm

66 85 53 mm х х

1,5 month /kWtPower consumption, not more than

Power Volt

Voltage limit

0,21 ±10 %kg

Device weight

Overall dimensions

Connection, not more than

D3 t2 D40t D50t D63t

32 А 40 А 50 А 63 А

Max load current in 10 minutes,

Rated load current

40 А 60 А 80 А50 А

7 0 V 00 А 8 8 V 00 А 11 0 V 00 А 13 9 V 00 А

not more than 1,2 сse

not more than

0,04 сse

not more than

0,04 сse

INSTALLATION

The appliance is installed in a special box, which allows to

conduct the easy installation and operation. Cabinet

should beequipped with standard mounting rail 35 mm

width (DIN rail). The appliance takes in width of 3 standard

module on 18 mm. The height of the appliance should be

in the range 0,5...1,7 m from the floor.

Terminals of the device designed for wire cross section 2

up to 16 mm². It is advisable to use a soft wire, which is

tightened in the terminals with a screwdriver with a tip

width of no more than 6 mm with a torque of 2.4 Nm. A

screwdriver with a blade more than 6 mm wide can cause

mechanical damage to the terminals. Doing so will void

your warranty claim.

For protection against short circuit and excess capacity in

circuit load necessarily need to set in front of the

appliance, the automatic circuit-breaker (QF). The

automatic switch off is established in the open-phase fault

wire, as shown at the schemes 1, 3. To protect person

from electric shock leak is set safety shutdown device.

The appliance is intended for installation inside residences

The risk of moisture or humidity in the installation site

should be minimal.The ambient temperature during the

installation should be within –5...+45 °С.

D 5t, D32t,

D40t, D50t, D63t

Technical passport and installation

and operation manual

Оvervoltage protection for professionals

Voltage relay ZUB tR D

Guarantee card, technical passport,

manual

Shipping box

1 piece

SUPPLY PACKAGE

GUARANTEE CARD

serial №:

a seller, a seal:

place of a seal

date of sale:

an owner contact for a service center:

The warranty for ZUBR devices is valid for

from the date of sale, provided that the instructions are

followed. The warranty period for products without a

warranty certificate is counted from the date of production.

60 months

If your device is not working properly, we recommend that

you first read the section «Possible problems». If you

cannot find an answer, contact Service Center. In most

cases, these actions resolve all issues.

If you continue to have issues with the device, please

send it to a Service Center or to the store where you

purchased the device. If your device is defective due to

our fault, we will repair or replace it under warranty within

14 business days.

Please see the full text of the warranty and the data you

need to send to your Service Center. The website address

can be found in the instructions in the Contacts section.

WARRANTY TERMS

SERVICE CENTER CONTACT:

+38 (050) 450-30-15

Viber WhatsApp Telegram

support@dse.com.ua

Need help?

Do you have a question about the Zubr D25t and is the answer not in the manual?

The ZUBR D25t, D32t, D40t, D50t, D63t series of voltage relays are professional overvoltage protection devices designed to safeguard electrical equipment from critical mains voltage surges. They are suitable for use with sensitive equipment such as refrigerators, TVs, video and audio equipment, and computers.

Function Description:

The primary function of the ZUBR Dt device is to monitor the mains voltage and disconnect the load if the voltage deviates beyond user-defined upper and lower limits. This prevents damage to connected appliances. Once the voltage returns to a safe range and a set delay time has passed, the device automatically reconnects the load. The device also incorporates protection against internal overheating, which can be caused by factors like poor terminal contact, high ambient temperature, or excessive power output. In case of overheating, the device will display "oht" and disconnect the load. It will automatically resume operation once the internal temperature drops. If overheating protection triggers multiple times within 24 hours, the device will lock until the temperature drops and a button is pressed. The device also logs up to 50 events where the load was interrupted due to voltage deviations or overheating.

Important Technical Specifications:

Models: D25t, D32t, D40t, D50t, D63t, each corresponding to a different rated load current.
Supply Voltage: 100 – 420 V, 50 Hz.
Voltage Limit (User Adjustable):
- Upper: 220-280 V
- Lower: 120-210 V
Power Volt: Not less than 100 V, not more than 420 V.
Power Consumption: Not more than 1.5 kWt/month.
Device Weight: 0.21 kg ±10%.
Overall Dimensions: 66 x 85 x 53 mm.
Connection (Wire Cross Section): Not more than 16 mm².
IP Rating (GOST 14254): IP20.
Rated Load Current:
- D25t: 25 A
- D32t: 32 A
- D40t: 40 A
- D50t: 50 A
- D63t: 63 A
Max Load Current (in 10 minutes):
- D25t: 30 A
- D32t: 40 A
- D40t: 50 A
- D50t: 60 A
- D63t: 80 A
Rated Power:
- D25t: 5 500 VA
- D32t: 7 000 VA
- D40t: 8 800 VA
- D50t: 11 000 VA
- D63t: 13 900 VA
Break-time at increasing voltage: 0.01-0.03 sec (not more than 0.04 sec).
Break-time at lower voltage:
- 120 V: Not more than 1.2 sec
- < 120 V: 0.01-0.03 sec (not more than 0.04 sec)
Number of Operating Cycles Under Load: Not less than 100,000 cycles (not less than 10,000 cycles for professional models).
Number of Operating Cycles Without Load: Not less than 1,000,000 cycles (not less than 500,000 cycles for professional models).
Relay Type: Electromagnetic, polarized.

Usage Features:

Installation: The device is intended for indoor installation within residences, in a special box with a 35 mm DIN rail. It occupies 3 standard modules (18 mm width each) and should be installed 0.5-1.7 m from the floor. An automatic circuit-breaker (QF) must be installed in front of the appliance for short-circuit and overcurrent protection. A safety shutdown device should be used for electric shock protection. Terminals are designed for 2 to 16 mm² wires; soft wires are recommended, tightened with a screwdriver (tip width no more than 6 mm, torque 2.4 Nm).
Initial Operation: Upon power-up, the device displays the current voltage. If the voltage is normal, the load is connected after a set delay, and a green indicator lights up. If the voltage is outside the limits, its value will flash alternately with "U¯¯" (over upper limit) or "U__" (under lower limit).
Navigation and Settings: Use the "=" button to navigate the menu. The "+" and "-" buttons are used to change parameters. Pressing a button once makes the parameter flash; pressing it a second time changes the parameter. After 5 seconds of inactivity, the display returns to the mains voltage. All settings are stored in non-volatile memory.
Setting Trip Limits: Factory settings are 242V (upper) and 198V (lower). These can be adjusted using the "+" and "-" buttons. It is crucial to refer to the technical documentation of the protected equipment when setting these limits.
Delay in Load Starting After a Failure: During a voltage jump, an emergency situation is displayed for 1.5 seconds, followed by a flashing dot and countdown. For delays longer than 100 seconds, the current voltage with a flashing dot is displayed; for shorter times, a countdown is shown. For refrigeration equipment with a compressor, a delay of 120-180 seconds is recommended to increase service life.
Reset to Factory Settings: Hold the three buttons ("-", "+", "=") until "dEF" appears on the screen. After release, the device will reset, reboot, and clear the alarm log.
Correction of Voltage: The device allows for voltage correction (±20 V) if its readings differ from a reference device.
Overheating Protection: The device has internal overheating protection. If the internal temperature exceeds 80 °C, the load is disconnected, and "oht" flashes. Operation resumes when the temperature drops below 60 °C. If this protection triggers more than 5 times within 24 hours, the device locks until the temperature drops below 60 °C and a button is pressed.
Error "Ert": If "Ert" displays every 5 seconds, it indicates an open or short circuit of the internal overheating sensor. The device should be sent to a Service Center.
Load Power Considerations: It's important to note that load power increases with voltage. For example, 3000 VA at 220 V becomes 4400 VA at 270 V. Do not allow the relay's power handling to exceed its certified value at maximum voltage deviation. If the required power exceeds the device's capacity, an external electric contactor (magnetic starter, power relay) designed for the higher capacity should be used.

Maintenance Features:

Safety Instructions: Read the instructions carefully before installation and operation. Installation must be performed by a qualified electrician. Always disconnect power before installation or disconnection. Operate the device with dry hands. Do not connect a disassembled device. Avoid water or moisture. Do not expose to extreme temperatures (-5°C to +45°C) or high humidity. Do not clean with chemicals like benzene or solvents. Store in dust-free areas. Do not attempt to disassemble or repair the device. Do not exceed the specified load and power. Use a lightning protector to guard against overvoltage caused by lightning discharges. Keep children away from the working device.
Troubleshooting: If the device is not working properly, first check the "Possible problems" section in the manual. If issues persist, contact the Service Center.
Warranty: The warranty is valid for 60 months from the date of sale, provided instructions are followed. For products without a warranty certificate, the period is counted from the date of production. Defective devices will be repaired or replaced under warranty within 14 business days.
Disposal: The product does not contain harmful substances. At the end of its service life, it must be disposed of according to applicable law and not with household waste.
Transportation: Goods are transported in packaging that ensures product safety, by any kind of transport (rail, sea, motor, air).
Manufacturing Date: The date of manufacture is on the back side of the device.
Application Time: Unlimited.

Zubr D25t Specifications

General

Brand	Zubr
Model	D25t
Category	Relays
Language	English