Spring cage fuse terminal blocks from Phoenix Contact
satisfy two important tasks of electrical connection
systems. Firstly, they act as carriers for fuses and
secondly, they assume the task of potential distribution.
The universal ST bridge shaft makes continuous
bridging possible between ST feed-through terminal
blocks and ST fuse terminal blocks.
ST 4-HESI
can be used for the 5 x 20 mm fuse format,
which is a standard in electrical engineering. It is also
available with a light indicator for signaling a triggered
fuse.
ST 4-HESI (6,3 x 32)
is characterized by the double
bridge shaft located in the same position as in the entire
ST series.
This opens up all options for power distribution. To make
it practical to use, test connections are provided on both
sides of the standardized (6.3 x 32 mm) fuse inserts.
Te rminal blocks with a light indicator are available to
signal the triggering of a fuse.
The large-surface labeling option on the fuse lever
enables fast identification of the fused circuits.
Flat-type fuses in accordance with ISO/DIS 8820/
DIN 72581-3 or alternatively the TCP thermal miniature
circuit breaker can be used as the fuse element in the
ST 4-FSI/C
fuse terminal block. Terminal blocks with a
light indicator are available for quick error diagnosis "at a
glance". A wide range of potential distribution options
can be implemented using the ST bridge shaft which is
integrated in this terminal block.
Attention:
The cartridge fuse holders should be selected according
to the maximum power dissipation (self-heating) of the
cartridge fuse inserts. The thermal conditions in closed
fuse holders should be checked according to the
application and installation.
Higher ambient temperatures
are an additional strain on fuse inserts. In applications of
this kind, the shift of the rated current should be taken
into consideration accordingly.
Spring Cage Fuse Terminal Blocks ST
Phoenix Contact GmbH & Co. KG • 32823 Blomberg, Germany
Phone +49 52 35 3-00 • Fax +49 52 35 3-4 12 00 • www.phoenixcontact.com
Local Contact: www.phoenixcontact.com/salesnetwork
Technical data
Type Order No.
Pcs.
Pkt.
Fuse terminal block,
for mounting on
3
,
for cartridge fuse inserts 5 x 20 mm terminal width 6.2
ST 4-HESI (5 x 20) 30 36 36 9 50
(1)
Plug-in bridge,
for 2-pos.
cross-connections in the 3-pos.
terminal center 4-pos.
5-pos.
10-pos.
20-pos.
FBS 2-6
I
max
.
: 32 A
30 30 33 6 50
FBS 3-6
32 A
30 30 24 2 50
FBS 4-6
32 A
30 30 25 5 50
FBS 5-6
32 A
30 30 34 9 50
FBS 10-6
32 A
30 30 27 1 10
FBS 20-6
32 A
30 30 36 5 10
(2)
Partition plate,
for
visual and electrical separation
of terminal groups, 2 mm thick
ATP-ST 4 30 30 72 1 50
(3)
Screwdriver,
for
actuating the tension spring
SZF 1 - 0,6 x 3,5 12 04 51 7 10
(4)
Zack strip,
flat, for labeling the
center and outer marker grooves white
ZBF 6:UNPRINTED 08 08 71 0 10
(5)
Zack strip,
10-section, for
labeling on the white
fuse lever
ZB 5:UNPRINTED 10 50 00 4 10
Dimensions
Width / length [mm] 6.2 / 61.5
Height (NS 35/7,5 / NS 35/15) [mm] 62.5 / 70
Technical data in accordance with IEC/ DIN VDE
Fuse type ISO/DIS 8820/DIN 72 581-3 / dimensions – / [mm] G / 5 x 20
Max. power dissipation
at 23 °C based on E DIN VDE 0611-6: 2001-04 [W]
1
)
Rated surge voltage / contamination class [kV] / – 4 / 3
Surge voltage category / insulation material group – / – III / I
Connection capacity
Stranded with ferrule with plastic sleeve [mm
2
] 0.25 - 4
Stranded with ferrule without plastic sleeve [mm
2
] 0.25 - 4
Stranded with TWIN ferrule with plastic sleeve [mm
2
] 0.5 - 1
Stripping length
[mm] 10
Internal cylindrical gauge (IEC 60 947-1)
A 4
Insulating material
PA
Inflammability class in acc. with UL 94 V0
Approval data (UL and CSA/CUL)
Nominal voltage / current / conductor sizes UL: [V] / [A] / AWG –
CSA/CUL: [V] / [A] / AWG –
Spring Cage Fuse Terminal Block
ST 4-HESI (5 x 20)
Phoenix Contact page 2 of 7
(IEC) rigid flexible I U
[mm
2
] solid stranded AWG [A] [V]
DIN VDE 0611
with fuse 0.08-6 0.08-4 28-10
1
)
1
)
as disconnect term.bl.0.08-6 0.08-4 28-10 6.3 250
1
) see table below (the current is determined by the fuse used)
Max. power dissipation at 23°C (based on E DIN VDE 0611-6:2001-04)
When selecting cartridge fuse inserts, please ensure that the maximum power dissipation specified below is not exceeded. Details
can be obtained from the fuse suppliers.
Te rminal block type U Overload protection Short-circuit protection only
[V] Single Interconnected Single Interconnected
ST 4-HESI (5 x 20) 250 2.5 W 1.6 W 4.0 W 2.5 W
Cartridge fuse terminal blocks based on
E DIN VDE 0611-6: 2001-04
Technical data
Type Order No.
Pcs.
Pkt.
Fuse terminal block
2
),
for mounting on
3
,
for cartridge fuse inserts 5 x 20 mm, with
light indicator for:
15 - 30 V AC/DC, 3.5 - 8.1 mA terminal width 6.2
30 - 60 V AC/DC, 0.8 - 2.0 mA terminal width 6.2
110 - 250 V AC/DC, 0.5 - 1.0 mA terminal width 6.2
ST 4-HESILED 24 30 36 54 7 50
ST 4-HESILED 60 30 36 55 0 50
ST 4-HESILA 250 30 36 56 3 50
(1)
Plug-in bridge,
for 2-pos.
cross-connections in the 3-pos.
terminal center 4-pos.
5-pos.
10-pos.
20-pos.
FBS 2-6
I
max
.
: 32 A
30 30 33 6 50
FBS 3-6
32 A
30 30 24 2 50
FBS 4-6
32 A
30 30 25 5 50
FBS 5-6
32 A
30 30 34 9 50
FBS 10-6
32 A
30 30 27 1 10
FBS 20-6
32 A
30 30 36 5 10
(2)
Partition plate,
for
visual and electrical separation
of terminal groups, 2 mm thick
ATP-ST 4 30 30 72 1 50
(3)
Screwdriver,
for
actuating the tension spring
SZF 1 - 0,6 x 3,5 12 04 51 7 10
(4)
Zack strip,
flat, for labeling the
center and outer marker grooves white
ZBF 6:UNPRINTED 08 08 71 0 10
(5)
Zack strip,
10-section, for
labeling on the white
fuse lever
ZB 5:UNPRINTED 10 50 00 4 10
Dimensions
Width / length [mm] 6.2 / 61.5
Height (NS 35/7,5 / NS 35/15) [mm] 62.5 / 70
Technical data in accordance with IEC/ DIN VDE
Fuse type ISO/DIS 8820/DIN 72 581-3 / dimensions – / [mm] G / 5 x 20
Max. power dissipation
at 23 °C based on E DIN VDE 0611-6: 2001-04 [W]
1
)
Rated surge voltage / contamination class [kV] / – 4 / 3
Surge voltage category / insulation material group – / – III / I
Connection capacity
Stranded with ferrule with plastic sleeve [mm
2
] 0.25 - 4
Stranded with ferrule without plastic sleeve [mm
2
] 0.25 - 4
Stranded with TWIN ferrule with plastic sleeve [mm
2
] 0.5 - 1
Stripping length
[mm] 10
Internal cylindrical gauge (IEC 60 947-1)
A 4
Insulating material
PA
Inflammability class in acc. with UL 94 V0
Approval data (UL and CSA/CUL)
Nominal voltage / current / conductor sizes UL: [V] / [A] / AWG –
CSA/CUL: [V] / [A] / AWG –
Spring Cage Fuse Terminal Blocks
with Light Indicator
ST 4-HESILED and
ST 4-HESILA (5 x 20)
Phoenix Contact page 3 of 7
(IEC) rigid flexible I U
[mm
2
] solid stranded AWG [A] [V]
DIN VDE 0611
with fuse 0.08-6 0.08-4 28-10
1
)
1
)
as disconnect term.bl.0.08-6 0.08-4 28-10 6.3 250
1
) see table below (the current is determined by the fuse used, the voltage by the
light indicator selected)
2
) If the fuse is defective, the downstream circuit is not off load.
Max. power dissipation at 23°C (based on E DIN VDE 0611-6:2001-04)
When selecting cartridge fuse inserts, please ensure that the maximum power dissipation specified below is not exceeded. Details
can be obtained from the fuse suppliers.
Te rminal block type U Overload protection Short-circuit protection only
[V] Single Interconnected Single Interconnected
ST 4-HESI... 250 2.5 W 1.6 W 4.0 W 2.5 W
Cartridge fuse terminal blocks based on
E DIN VDE 0611-6: 2001-04
Technical data
Type Order No.
Pcs.
Pkt.
Fuse terminal block
, for mounting on
3
,
for cartridge fuse inserts 6.3 x 32 mm, black terminal width 8.2
ST 4-HESI (6,3 x 32) 30 36 38 5 50
(1)
Plug-in bridge,
for 2-pos.
cross-connections in the 3-pos.
terminal center 4-pos.
5-pos.
10-pos.
FBS 2-8
I
max
.
: 32 A
30 30 28 4 10
FBS 3-8
32 A
30 30 29 7 10
FBS 4-8
32 A
30 30 30 7 10
FBS 5-8
32 A
30 30 31 0 10
FBS 10-8
32 A
30 30 32 3 10
(2)
Partition plate,
for
visual and electrical separation
of terminal groups, 2 mm thick
ATP-QTC TWIN 32 06 21 2 50
(3)
Adapter bridge,
for connecting an
ST 4-HESI (6,3 x 32) to an ST 4, ST 2,5 or QTC 1,5
RB ST 6-(2,5/4) 30 30 86 0 50
(4)
Screwdriver,
for
actuating the tension spring
SZF 1 - 0,6 x 3,5 12 04 51 7 10
(5)
Zack strip,
flat, for labeling the
center and outer marker grooves white
ZBF 8:UNPRINTED 08 08 78 1 10
(6)
Zack strip,
10-section, for
labeling on the white
fuse lever
ZB 6:UNPRINTED 10 51 00 3 10
Dimensions
Width / length [mm] 8.2 / 76.5
Height (NS 35/7,5 / NS 35/15) [mm] 69 / 76.5
Technical data in accordance with IEC/ DIN VDE
Fuse type ISO/DIS 8820/DIN 72 581-3 / dimensions – / [mm] G / 6 x 32
Maximum current with single arrangement [A] 10
Max. power dissipation
at 23 °C based on E DIN VDE 0611-6: 2001-04 [W] see table
Rated surge voltage / contamination class [kV] / – 6 / 3
Surge voltage category / insulation material group – / – III / I
Connection capacity
Stranded with ferrule with plastic sleeve [mm
2
] 0.25 - 4
Stranded with ferrule without plastic sleeve [mm
2
] 0.25 - 4
Stranded with TWIN ferrule with plastic sleeve [mm
2
] 0.5 - 1
Stripping length
[mm] 10
Internal cylindrical gauge (IEC 60 947-1)
A 4
Insulating material
PA
Inflammability class in acc. with UL 94 V0
Approval data (UL and CSA/CUL)
Nominal voltage / current / conductor sizes UL: [V] / [A] / AWG applied for 600 / 10 / 24-10
CSA/CUL: [V] / [A] / AWG applied for 600 / 10 / 24-10
Spring Cage Fuse Terminal Block
ST 4-HESI (6,3 x 32)
Phoenix Contact page 4 of 7
(IEC) rigid flexible I U
[mm
2
] solid stranded AWG [A] [V]
IEC 60 947-7-3 0.08-6 0.08-4 28-10 10* 400*
*Current and voltage are determined by the fuse used.
Max. power dissipation at 23°C (based on E DIN VDE 0611-6:2001-04)
When selecting cartridge fuse inserts, please ensure that the maximum power dissipation specified below is not exceeded. Details
can be obtained from the fuse suppliers.
Te rminal block type U Overload protection Short-circuit protection only I
max.
[V]
Single Interconnected Single Interconnected [A]
ST 4-HESI (6,3 x 32) 400 1.6 W 1.6 W 4.0 W 2.5 W 10
Cartridge fuse terminal blocks based on
E DIN VDE 0611-6: 2001-04
Technical data
Type Order No.
Pcs.
Pkt.
Fuse terminal block
1
),
for mounting on
3
,
for cartridge fuse inserts 6 x 32 mm, with
light indicator for:
15 - 30 V AC/DC, 1 - 2.5 mA terminal width 8.2
110 - 250 V AC/DC, 0.5 - 2.5 mA terminal width 8.2
ST 4-HESILED 24 (6,3 x 32) 30 38 76 5 50
ST 4-HESILA 250 (6,3 x 32) 30 38 77 8 50
(1)
Plug-in bridge,
for 2-pos.
cross-connections in the 3-pos.
terminal center 4-pos.
5-pos.
10-pos.
FBS 2-8
I
max
.
: 32 A
30 30 28 4 10
FBS 3-8
32 A
30 30 29 7 10
FBS 4-8
32 A
30 30 30 7 10
FBS 5-8
32 A
30 30 31 0 10
FBS 10-8
32 A
30 30 32 3 10
(2)
Partition plate,
for
visual and electrical separation
of terminal groups, 2 mm thick
ATP-QTC TWIN 32 06 21 2 50
(3)
Adapter bridge,
for connecting an
ST 4-HESI (6,3 x 32) to an ST 4, ST 2,5 or QTC 1,5
RB ST 6-(2,5/4) 30 30 86 0 50
(4)
Screwdriver,
for
actuating the tension spring
SZF 1 - 0,6 x 3,5 12 04 51 7 10
(5)
Zack strip,
flat, for labeling the
center and outer marker grooves white
ZBF 8:UNPRINTED 08 08 78 1 10
(6)
Zack strip,
10-section, for
labeling on the white
fuse lever
ZB 6:UNPRINTED 10 51 00 3 10
Dimensions
Width / length [mm] 8.2 / 76.5
Height (NS 35/7,5 / NS 35/15) [mm] 69 / 76.5
Technical data in accordance with IEC/ DIN VDE
Fuse type ISO/DIS 8820/DIN 72 581-3 / dimensions – / [mm] G / 6 x 32
Maximum current with single arrangement [A] 10
Max. power dissipation
at 23 °C based on E DIN VDE 0611-6: 2001-04 [W] see table
Rated surge voltage / contamination class [kV] / – 6 / 3
Surge voltage category / insulation material group – / – III / I
Connection capacity
Stranded with ferrule with plastic sleeve [mm
2
] 0.25 - 4
Stranded with ferrule without plastic sleeve [mm
2
] 0.25 - 4
Stranded with TWIN ferrule with plastic sleeve [mm
2
] 0.5 - 1
Stripping length [mm] 10
Internal cylindrical gauge (IEC 60 947-1) A 4
Insulating material PA
Inflammability class in acc. with UL 94 V0
Approval data (UL and CSA/CUL)
Nominal voltage / current / conductor sizes UL: [V] / [A] / AWG applied for 600 / 10 / 24-10
CSA/CUL: [V] / [A] / AWG applied for 600 / 10 / 24-10
Spring Cage Fuse Terminal Block
ST 4-HESILED and
ST 4-HESILA (6,3 x 32)
Phoenix Contact page 5 of 7
(IEC) rigid flexible I U
[mm
2
] solid stranded AWG [A] [V]
IEC 60 947-7-3 0.08-6 0.08-4 28-10 10* 400*
*Current and voltage are determined by the fuse used.
1
) If the fuse is defective, the downstream circuit is not off load.
Max. power dissipation at 23°C (based on E DIN VDE 0611-6:2001-04)
When selecting cartridge fuse inserts, please ensure that the maximum power dissipation specified below is not exceeded. Details
can be obtained from the fuse suppliers.
Te rminal block type U Overload protection Short-circuit protection only I
max.
[V] Single Interconnected Single Interconnected [A]
ST 4-HESI (6,3 x 32) 400 1.6 W 1.6 W 4.0 W 2.5 W 10
Cartridge fuse terminal blocks based on
E DIN VDE 0611-6: 2001-04
Technical data
Type Order No.
Pcs.
Pkt.
Fuse terminal block,
for mounting on
3, terminal width 8.2 ST 4-FSI/C 30 36 37 2 50
(1) Insulating stop sleeve, prevents unintentional clamping
of the insulation in the case of smaller cross sections
Cross section range: 0.25-0,5 mm
2
gray
0.75-1 mm
2
black
ISH 4/0,5 30 02 88 5 50
ISH 4/1 30 02 89 8 50
(2) Plug-in bridge, for 2-pos.
cross-connections in the 3-pos.
terminal center 4-pos.
5-pos.
10-pos.
FBS 2-8 I
max
.
: 41 A 30 30 28 4 10
FBS 3-8 41 A 30 30 29 7 10
FBS 4-8 41 A 30 30 30 7 10
FBS 5-8 41 A 30 30 31 0 10
FBS 10-8 41 A 30 30 32 3 10
(3) Test adapter, for 4 mm ∅ test plug PS
and 4 mm ∅ safety test plugs,
making contact in the bridge shaft
PAI 4 30 30 92 5 10
(4) 2.3 mm ∅ test plug
1
), consisting of
metal part and red insulating sleeve MPS-RD 02 01 55 3 10
(5) Screwdriver, for
actuating the tension spring SZF 1 - 0,6 x 3,5 12 04 51 7 10
(6) Zack strip, flat, for labeling the
center and outer marker grooves white ZBF 8:UNPRINTED 08 08 78 1 10
(7) Zack strip, 10-section, for
labeling in the terminal center white ZB 8:UNPRINTED 10 52 00 2 10
Dimensions
Width / length [mm] 8.2 / 86.5
Height (NS 35/7,5 / NS 35/15) [mm] 43.5 / 51
Technical data in accordance with IEC/ DIN VDE
Fuse type ISO/DIS 8820/DIN 72 581-3 – C
Maximum current with single arrangement [A] 30
Max. power dissipation
at 23 °C based on E DIN VDE 0611-6: 2001-04 [W]
1
)
Rated surge voltage / contamination class [kV] / – 6 / 3
Surge voltage category / insulation material group – / – III / I
Connection capacity
Stranded with ferrule with plastic sleeve [mm
2
] 0.25 - 4
Stranded with ferrule without plastic sleeve [mm
2
] 0.25 - 4
Stranded with TWIN ferrule with plastic sleeve [mm
2
] 0.5 - 1
Stripping length [mm] 10
Internal cylindrical gauge (IEC 60 947-1) A 4
Insulating material PA
Inflammability class in acc. with UL 94 V0
Approval data (UL and CSA/CUL)
Nominal voltage / current / conductor sizes UL: [V] / [A] / AWG –
CSA/CUL: [V] / [A] / AWG –
Spring Cage Fuse Terminal Block
ST 4-FSI/C
Phoenix Contact page 6 of 7
(IEC) rigid flexible I U
[mm
2
] solid stranded AWG [A] [V]
Connection data 0.08-6 0.08-4 28-10 30 400
1
) On request.
TNR 5125896/15.03.03-01 Phoenix Contact 2003
Technical data
Type Order No.
Pcs.
Pkt.
Fuse terminal block
1
), for mounting on 3,
with light indicator for:
12 V DC, 2.0 mA terminal width 8.2
24 V DC, 2.0 mA terminal width 8.2
ST 4-FSI/C-LED 12 30 36 49 5 50
ST 4-FSI/C-LED 24 30 36 50 5 50
(1) Insulating stop sleeve, prevents unintentional clamping
of the insulation in the case of smaller cross sections
Cross section range: 0.25-0.5 mm
2
gray
0.75-1 mm
2
black
ISH 4/0,5 30 02 88 5 50
ISH 4/1 30 02 89 8 50
(2) Plug-in bridge, for 2-pos.
cross-connections 3-pos.
in the terminal center 4-pos.
5-pos.
10-pos.
FBS 2-8 I
max
.
: 41 A 30 30 28 4 10
FBS 3-8 41 A 30 30 29 7 10
FBS 4-8 41 A 30 30 30 7 10
FBS 5-8 41 A 30 30 31 0 10
FBS 10-8 41 A 30 30 32 3 10
(3) Test adapter, for 4 mm ∅ test plug PS
and 4 mm ∅ safety test plugs,
making contact in the bridge shaft
PAI 4 30 30 92 5 10
(4) 2.3 mm ∅ test plug
1
), consisting of
metal part and red insulating sleeve MPS-RD 02 01 55 3 10
(5) Screwdriver, for
actuating the tension spring SZF 1 - 0,6 x 3,5 12 04 51 7 10
(6) Zack strip, flat, for labeling the
center and outer marker grooves white ZBF 8:UNPRINTED 08 08 78 1 10
(7) Zack strip, 10-section, for
labeling in the terminal center white ZB 8:UNPRINTED 10 52 00 2 10
Dimensions
Width / length [mm] 8.2 / 86.5
Height (NS 35/7.5 / NS 35/15) [mm] 43.5 / 51
Technical data in accordance with IEC/ DIN VDE
Fuse type ISO/DIS 8820/DIN 72 581-3 – C
Maximum current with single arrangement [A] 30
Max. power dissipation
at 23 °C based on E DIN VDE 0611-6: 2001-04 [W]
2
)
Rated surge voltage / contamination class [kV] / – 6 / 3
Surge voltage category / insulation material group – / – III / I
Connection capacity
Stranded with ferrule with plastic sleeve [mm
2
] 0.25 - 4
Stranded with ferrule without plastic sleeve [mm
2
] 0.25 - 4
Stranded with TWIN ferrule with plastic sleeve [mm
2
] 0.5 - 1
Stripping length [mm] 10
Internal cylindrical gauge (IEC 60 947-1) A 4
Insulating material PA
Inflammability class in acc. with UL 94 V0
Approval data (UL and CSA/CUL)
Nominal voltage / current / conductor sizes UL: [V] / [A] / AWG –
CSA/CUL: [V] / [A] / AWG –
Spring Cage Fuse Terminal Blocks
with Light Indicator
ST 4-FSI/C-LED
Phoenix Contact page 7 of 7
(IEC) rigid flexible I U
[mm
2
] solid stranded AWG [A] [V]
Connection data 0.08-6 0.08-4 28-10 30 400
1
) If the fuse is defective, the downstream circuit is not off load.
2
) On request.
