Annex to Certificate
IECEx VTT 14.0021X
1 (5)
Rated values
Voltage: Max 690 V depending on the terminal type and accessories (see Table 1)
Current: Max 35 A according to Tables 3–5
Terminal cross section: According to Table 2
Number of terminals: According to Tables 3–5
Number of cable glands: According to Table 6
Transmitters and proximity transducer amplifiers:
Ex n transmitters: Ui = 42.4 V, Li = 0, Ci = 3.6 nF
Ex n proximity transducer amplifiers: Ui = -28 V
Components
Enclosures:
ROSE Systemtechnik GmbH, types 34…
II 2 G Ex e IIC Gb
II 2 D Ex tb IIIC Db, IP66
Tamb = -55 C …+135 C
Tamb = -50 C …+100 C (with inspection window)
IECEx PTB 07.0059U, PTB 00 ATEX 1101U
Ensto Finland Oy, types Cubo X…
II 2 G Ex e IIC Gb
II 2 D Ex t IIC Db, IP66
Tamb = -55 C …+85 C
IECEx DNV 11.0005U, DNV 11 ATEX 98909U
IECEx PRE 14.0042U, Presafe 14 ATEX 5378U
Terminals:
Phoenix Contact; see types, certificates and rated values in Tables 1–2 and the maximum number of
terminal blocks in each terminal box type in Tables 3–5.
II 2 GD Ex eb IIC
Tamb = -60 C …+110 C
Annex to Certificate
IECEx VTT 14.0021X
2 (5)
Table 1: Rated voltage for each Phoenix Contact terminal type included in this certificate. The
rated voltage may be lower if skipping jumpers or cut to length bridges are used.
Phoenix Contact terminal types
ST 1,5
ST 1,5QUATTRO
Rated voltage [V]
(1
ST 2,5
ST 2,5QUATTRO
ST 4
ST 4QUATTRO
440
- with skipping jumper [V]
ST 6
ST 10
550
690
(2
- with skipping jumper across type PE [V]
352
(2
(3
275
440
176
-
220
- with cut to length bridge and cover type D [V]
- with cut to length bridge and partition plate type
(3
ATP [V]
UT 6
220
275
275
(1
With or without Phoenix Plug-in bridges (unmodified standard plug-in bridges)
With Phoenix Plug-in bridges in which one or more pins are cut off
(3
With Phoenix Plug-in bridges that have been cut shorter
(2
Table 2: The rated terminal cross sections, allowable cable cross sections and the component
certificates for the Phoenix Contact terminal types included in this certificate. In addition, protective
conductor terminal blocks (listed types with suffix –PE) are allowed and the same rated terminal
cross sections and allowable cable cross sections apply.
Phoenix Contact
terminal type
Cable
cross
sections
[mm2]
Rated
terminal
cross
section
[mm2]
ST 1,5
ST 1,5-QUATTRO
ST 2,5
ST 2,5-QUATTRO
ST 4
ST 4-QUATTRO
ST 6
UT 6
ST 10
Certificates
1.5
0.2–1.5
IECEx KEM 06.0043U, KEMA 01 ATEX 2129U
2.5
0.2–2.5
IECEx KEM 06.0051U, KEMA 00 ATEX 2052U
4
0.2–4
6
6
10
0.2–6
0.2–6
1.5–10
IECEx KEM 06.0050U, KEMA 00 ATEX 2129U
IECEx KEM 06.0027U, KEMA 04 ATEX 2048U
IECEx KEM 06.0033U, KEMA 01 ATEX 2260U
current [A]
Table 3: Maximum number of terminal blocks in terminal box types ZWT1 _202012-_BS and
ZWT1 _202012-_SS.
3
6
10
16
20
25
35
1,5
32
28
5
cross section [mm2]
2,5
4
26
26
6
22
22
14
6
15
15
15
10
13
13
13
Annex to Certificate
IECEx VTT 14.0021X
3 (5)
current [A]
Table 4: Maximum number of terminal blocks in terminal box types ZWT1 _323220-_BS, ZWT1
_323220-_SS, ZWT1 _323223-_BW and ZWT1 _323223-_SW.
3
6
10
16
20
25
35
1,5
114
28
5
cross section [mm2]
2,5
4
92
58
6
78
36
14
6
55
55
24
10
47
47
15
current [A]
Table 5: Maximum number of terminal blocks in terminal box types ZWT1 _505020-_BS and
ZWT1 _505020-_SS.
3
6
10
16
20
25
35
1,5
188
28
5
cross section [mm2]
2,5
4
160
58
6
93
36
14
6
90
62
24
10
58
58
15
Note 1. The maximum number of terminal blocks is related only to the current, and thus the actual
number of terminals may be lower than given in Tables 3–5 depending on the dimensions of the
terminal blocks and the available mounting rail space.
When applying the values of Tables 3–5 to determine the maximum number of terminals,
simultaneous factors or load factors to IEC 439 may be considered. Mixed equipment with circuits
of different cross sections and currents is possible if the various values of the tables are applied
proportionally.
The values in Tables 3–5 are selected so that the remaining space can be occupied exclusively by
control terminals (max. 3 A).
The tables for maximum number of terminal blocks are valid only for the Phoenix Contact
terminals mentioned in this certificate or for terminals with the same or smaller terminal resistance.
For higher terminal resistance values the maximum number of terminal blocks has to be reduced.
Annex to Certificate
IECEx VTT 14.0021X
4 (5)
Cable glands:
Hummel AG, type HSK-M-EMV-Ex
II 2 G Ex e IIC Gb
II 1 D Ex ta IIIC Da, IP 66
Tamb = -60 C …+95 C
IECEx KEM 07.0014X, KEMA 99 ATEX 6971X
Hawke International, types 501/421 and 501/414
II 2 G Ex e IIC Gb
II 2 D Ex tb IIIC Db, IP66
Tamb = -60 C …+80 C
IECEx BAS 06.0013X, Baseefa 06 ATEX 0056X
Table 6: Maximum number of cable glands.
ZWT1 _505020-_BS
ZWT1 _505020-_SS
PG
thread
Metric
thread
NPT
thread
All side
walls
Back
wall
ZWT1 _323220-_BS
ZWT1 _323220-_SS
ZWT1 _323223-_BW
ZWT1 _323223-_SW
All side
Back wall
walls
PG 7 or
PG9
PG 11
PG 13,5
or PG 16
M12
32
48
18
32
24
48
36
PG 21
PG 29
M25
M32
13
8
PG 36
M40
3/8”
NPT
1/2” or
3/4”
NPT
1” NPT
1 1/4”
NPT
1 1/2”
NPT
6
M16
M20
ZWT1 _202012-_BS
ZWT1 _202012-_SS
Walls
with
gland
plate
8
Back
wall
27
Walls
without
gland
plate
8
18
16
27
24
8
5
8
5
6
4
20
12
7
4
11
6
3
2
3
2
2
2
9
3
5
2
0
1
Closing devices (plugs):
Hummel Elektrotechnik GmbH, type V-MS-Ex 1.199.****.**
II 2 G Ex e II
II 1 D Ex tD A20 IP68
Tamb = -60 C …+180 C
IECEx BVS 07.0021, DMT 03 ATEX E 049
Hawke International, type 387
II 2 G Ex e IIC Gb
II 2 D Ex tb IIIC Db, IP66
Tamb = -60 C …+80 C
IECEx BAS 06.0029U, Baseefa 06 ATEX 0118U
6
Annex to Certificate
IECEx VTT 14.0021X
Adaptors:
Hawke International, type 476
II 2 G Ex e IIC Gb
II 2 D Ex tb IIIC Db, IP66
Tamb = -60 C …+80 C
IECEx BAS 11.0037X, Baseefa 11 ATEX 0067X
Transmitters:
Rosemount, type 248
II 3 G Ex nA IIC T5
Tamb = -60 C …+80 C
IECEx BAS 07.0087U, Baseefa 03 ATEX 0032U
In 3 D (dust) applications normal industrial components are allowed.
Proximity transducer amplifiers:
Bently Nevada Inc, type 3300XL Proximitor Sensor, 330180-51-05
II 3 G Ex nA IIC T4 Gc
Tamb = -51 C …+100 C
IECEx BAS 04.0057X, Baseefa 07 ATEX 0189X
In 3 D (dust) applications normal industrial components are allowed.
The above mentioned components, excluding enclosures, may be replaced by equivalent Ex
certified components taking into consideration the required equipment group, temperature
classification and creepage and clearance distances.
Degree of protection
IP 66
Documents
The equipment is installed in the enclosure as shown in the following principle drawings:
ABB Oy: 3AFP 9923019 rev D
ABB Oy: 3AFP 9923024 rev D
ABB Oy: 3AFP 9923042 rev D
ABB Oy: 3AFP 9923044 rev D
5 (5)