Danfoss Type BZ Solenoid Coil Installation Guide
- June 3, 2024
- Danfoss
Table of Contents
Danfoss Type BZ Solenoid Coil
Solenoid coil for control in potentially explosive areas Type BZ
INSTALLATION INSTRUCTIONS
Identification
- Green/Yellow cord for earthing
- Week and year of manufacturing
- External earth terminal
- Code number
- Voltage
- Frequency
- Current
- Ambient temperature range
- Country of manufacturing
- Enclosure
- Approval/Certificate number
Description and approval
Solenoid valve for control in potentially explosive area.
EU Directives
- EMC 2014/30/EU
- ROHs 2011/65/EU
- ATEX 2014/34/EU
Certifications
- Ex mb IIC T4 Gb
- DEMKO 14 ATEX 1314X
- IECEx ULD 14.0001X
- UL21UKEX2020X
The coil may only be installed with following valve combinations
- EVR NC 2 – 25
- EVRA(T) 3 – 25
- EVRS(T) 3 – 20
- EVRB
- EVRF
- EVM NC and EVM NO
- EV220B 6 – 22 NC
- EV220B 6 – 10 NO
- EV220B 15 – 50 NC
- EV250B
- EV251B
- EV222B
- EV224B
- EV227B
Application and specification
Nominal voltage
|
Frequency
|
Nominal current
| Size of fuse in front of the coil|
Ambient temperature
|
Media temperature
| Permissible voltage variation|
Code no.
---|---|---|---|---|---|---|---
[V]| [Hz]| [A]| [mA]| [°C]| [°C]| [%]|
24| DC| 0.43| 500| -40 – 45| -40 – 70| -10 – +5| 018F4705
110
120
| 50
60
| 0.14
0.13
| 250| -40 – 45| -40 – 70| -10 – +6| 018F4703
230
240
| 50
60
| 0.09
0.08
| 150| -40 – 45| -40 – 70| -10 – +6| 018F4704
- Ambient temperature -40 – 45 °C Polution degree 1+2+3 (EN60730-1)
- Media temperature -40 – 70 °C Over voltage category III (EN60730-1)
- Humidity 0% < RH < 100% Mode of operation Type 1 action (EN60730-1)
- Connection 3-core flexible cable 3 x 0.75 mm² Type of control Incorporated control (EN60730-1)
- External earth core Minimum area > 4 mm² Protection against electrical shock Class I (EN60730-1)
- Weight exclude valve 0.4 kg exclude cable Protection degree IP65 (IEC 60529)
Safety instruction
All national safety regulations must be complied with in connection with installation, start-up and operation of Danfoss solenoid valve. Furthermore, the requirements of the declaration of conformity and national regulations for installation in explosion area. Disregarding such regulations involves a risk of serious personal injury or extensive material damage. Work in connection with the solenoid valve mentioned must be performed only by suitable qualified persons. Safety requirements for use in explosive atmospheres are fullfilled through compliance certificates:
- EX mb IIC T4 Gb
- DEMKO 14 ATEX 1314X
- IECx ULD 14.0001X
- UL21UKEX2020X
Installation, operation and maintenance
- Protect the coil against external impact
- Protect the coil against direct sunlight and other ultraviolet sources
- Disconnect the power before dismounting the coil
- An external fuse (standard DIN41571-2) is required to protect coils as follows: 018F4703: 250 mA, 1500 A Breaking capacity, 250 V, Medium Time lag 018F4704: 150 mA, 1500 A Breaking capacity, 250 V, Medium Time lag 018F4705: 500 mA, 1500 A Breaking capacity, 250 V, Medium Time lag The Power supplying the solenoid must be limited to a prospective short circuit current of a maximum 1500 A
- Install the coil and cable according to IEC/EN/ EN BS 60079-14
- The cable supplied with the solenoids must not be handled or flexed, and shall be protected against impact if the ambient temperature is below 0 °C
- Installation and handling of the cable shall be done at temperature above 0 °C
- The cable is only for fixed installation and the minimum bending diameter for fixed installation: r ≥ 55 mm ( 2 )
- The cable jacket material is PVC
- The cable operating temperature range is -40 – 90 °C
- The product is provided with a yellow/green PE wire as well as an external earth terminal. These shall not be used simultaneously. If the external earth connection is connected to earth or bonding system, the Y/G earth wire must be cut off, isolated and not connected. If the Y/G wire is connected to earth, the external earth terminal must be left without any connection. For the external earth terminal the size of the earth core shall be minimum 4 mm² and the installer shall use a suitable method e.g. crimp terminal to ensure secureness of the external earth connection. The screw for external PE shall be mounted with 1.2 Nm ± 0.2.The external earth conductors shall be physically secured close to the coil connection to ensure that the conductors cannot be readily loosened or twisted
- The end user must ensure the earthing of the coil is maintained
- Non-detachable cords method Z repairing not allowed. If the coil failed, it must be replaced by a new coil
UK-CA contact address: Danfoss Ltd. 22 Wycombe End, HP9 1NB, GB CE contact address: Danfoss A/S DK-6430 Nordborg Denmark