https://www.phoenixcontact.com/us/products/2920078
Surge protection plug - PT 1X2-24DC/FM-ST - 2920078
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Surge protection plug with integrated diagnostic and status indicator on the module and remote indication contact
for a 2-wire floating signal circuit.
Product Features
Plugs can be checked with CHECKMASTER
Maximum ease of maintenance thanks to the two-piece design
Base element remains an integral part of the installation
With floating remote indication contact
Permanent and independent monitoring by a diagnostics unit
Consistent plug-in signal circuit protection
Impedance-neutral disconnection of plug for test and maintenance purposes
Optical status indication for the individual arresters
Key commercial data
Packing unit
1 pc
Weight per Piece (excluding packing)
30.0 GRM
Custom tariff number
85369010
Country of origin
Germany
Technical data
Dimensions
Height
45 mm
Width
17.7 mm
Depth
52 mm
Horizontal pitch
1 Div.
Complete module height
90 mm
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https://www.phoenixcontact.com/us/products/2920078
Surge protection plug - PT 1X2-24DC/FM-ST - 2920078
Technical data
Dimensions
Complete module width
17.7 mm
Complete module depth
65.5 mm
Ambient conditions
Ambient temperature (operation)
-40 °C ... 85 °C
Degree of protection
IP20
General
Housing material
PA 6.6
Inflammability class according to UL 94
V0
Color
black
Standards for air and creepage distances
VDE 0110-1
IEC 60664-1
Mounting type
On base element
Type
DIN rail module, two-section, divisible
Direction of action
Line-Line & Line-Signal Ground/Shield & optional Signal Ground/ShieldEarth Ground
Protective circuit
IEC test classification
C1
C2
C3
D1
VDE requirement class
C1
C2
C3
D1
Nominal voltage UN
24 V DC
Maximum continuous operating voltage UC
28 V DC
20 V AC
Maximum continuous voltage UC (wire-wire)
28 V DC
20 V AC
Nominal current IN
450 mA (45°C)
Operating effective current IC at UC
≤ 5 µA
Residual current IPE
≤ 2 µA (Directly grounded)
≤ 1 µA (BE: 1x2+F)
Nominal discharge current In (8/20) µs (Core-Core)
10 kA
Nominal discharge current In (8/20) µs (Core-Earth)
10 kA
Total surge current (8/20) µs
20 kA
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https://www.phoenixcontact.com/us/products/2920078
Surge protection plug - PT 1X2-24DC/FM-ST - 2920078
Technical data
Protective circuit
Max. discharge current Imax (8/20) µs maximum (Core-Core)
10 kA
Max. discharge current Imax (8/20) µs maximum (Core-Earth)
10 kA
Nominal pulse current Ian (10/1000) µs (Core-Core)
33 A (25 °C)
Impulse discharge current (10/350)˽µs, peak value limp
2.5 kA
Output voltage limitation at 1 kV/µs (Core-Core) spike
≤ 45 V
Output voltage limitation at 1 kV/µs (Core-Earth) spike
≤ 450 V
≤ 1 kV (BE: 1x2+F)
Output voltage limitation at 1 kV/µs (Core-Core) static
≤ 40 V
Residual voltage at In, (conductor-conductor)
≤ 40 V
Residual voltage with Ian (10/1000)µs (conductor-conductor)
≤ 50 V
Voltage protection level UP (Core-Core)
≤ 40 V (C1 (500 V/250 A))
≤ 40 V (C3 - 25 A)
Voltage protection level UP (Core-Earth)
≤ 450 V (C2 (10 kV/5 kA))
Response time tA (Core-Core)
≤ 1 ns
Response time tA (Core-Earth)
≤ 100 ns
Input attenuation aE, sym.
typ. 0.5 dB (≤ 1 MHz / 50 Ω)
typ. 0.2 dB (≤ 400 kHz/150 Ω)
Cut-off frequency fg (3 dB), sym. in 50 Ohm system
typ. 6 MHz
Cut-off frequency fg (3 dB), sym. in 150 Ohm system
typ. 2.5 MHz
Capacity (Core-Core)
typ. 1.4 nF
Capacity (Core-Earth)
typ. 4 pF
Resistance in series
2.2 Ω ±10 % (7-8/11-12)
Max. required back-up fuse
500 mA (e.g. T ( IEC 127-2/III))
Surge current resistance (conductor-conductor)
C2 - 10 kV/5 kA
C3 - 25 A
Surge current resistance (conductor-ground)
C2 - 10 kV/5 kA
D1 - 2,5 kA
C3 - 100 A
Alternating current carrying capacity (conductor-ground)
5A-1s
Connection data
Connection method
Screw connection (in connection with the base element)
Connection type IN
PLUGTRAB plug-in system
Connection type OUT
PLUGTRAB plug-in system
Screw thread
M3
Tightening torque
0.8 Nm
Stripping length
8 mm
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https://www.phoenixcontact.com/us/products/2920078
Surge protection plug - PT 1X2-24DC/FM-ST - 2920078
Technical data
Connection data
Conductor cross section stranded min.
0.2 mm²
Conductor cross section stranded max.
2.5 mm²
Conductor cross section solid min.
0.2 mm²
Conductor cross section solid max.
4 mm²
Conductor cross section AWG/kcmil min.
24
Conductor cross section AWG/kcmil max
12
Standards and Regulations
Standards/regulations
IEC 61643-21
DIN EN 61643-21
Classifications
eCl@ss
eCl@ss 4.0
27140201
eCl@ss 4.1
27130801
eCl@ss 5.0
27130801
eCl@ss 5.1
27130801
eCl@ss 6.0
27130807
eCl@ss 7.0
27130807
eCl@ss 8.0
27130807
ETIM
ETIM 2.0
EC000943
ETIM 3.0
EC000943
ETIM 4.0
EC000943
ETIM 5.0
EC000943
UNSPSC
UNSPSC 6.01
30212010
UNSPSC 7.0901
39121610
UNSPSC 11
39121610
UNSPSC 12.01
39121610
UNSPSC 13.2
39121620
Approvals
Approvals
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Surge protection plug - PT 1X2-24DC/FM-ST - 2920078
Approvals
Approvals
UL Listed / GOST
Ex Approvals
Approvals submitted
Approval details
UL Listed
GOST
Accessories
Accessories
Device marking
Zack marker strip - ZBN 18:UNBEDRUCKT - 2809128
Zack marker strip, Strip, white, unlabeled, can be labeled with: Plotter, Mounting type: Snap into tall marker groove, for
terminal block width: 18 mm, Lettering field: 18 x 5 mm
Labeled terminal marker
Zack Marker strip, flat - ZBF 5,LGS:FORTL.ZAHLEN - 0808671
Zack Marker strip, flat, Strip, white, labeled, Printed horizontally: Consecutive numbers 1 - 10, 11 - 20, etc. up to 491 500, Mounting type: Snap into flat marker groove, for terminal block width: 5 mm, Lettering field: 5.15 x 5.15 mm
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https://www.phoenixcontact.com/us/products/2920078
Surge protection plug - PT 1X2-24DC/FM-ST - 2920078
Accessories
Zack Marker strip, flat - ZBF 5,LGS:GERADE ZAHLEN - 0810821
Zack Marker strip, flat, Strip, white, labeled, Printed horizontally: Consecutive numbers 2 - 20, 22 - 40, etc. up to 82 - 100,
Mounting type: Snap into flat marker groove, for terminal block width: 5 mm, Lettering field: 5.15 x 5.15 mm
Zack Marker strip, flat - ZBF 5,LGS:UNGERADE ZAHLEN - 0810863
Zack Marker strip, flat, Strip, white, labeled, Printed horizontally: Odd numbers 1 - 19, 21 - 39, etc. up to 81 - 99,
Mounting type: Snap into flat marker groove, for terminal block width: 5 mm, Lettering field: 5.15 x 5.15 mm
Zack Marker strip, flat - ZBF 5,QR:FORTL.ZAHLEN - 0808697
Zack Marker strip, flat, Strip, white, labeled, Printed vertically: Consecutive numbers 1 - 10, 11 - 20, etc. up to 91 - 100,
Mounting type: Snap into flat marker groove, for terminal block width: 5 mm, Lettering field: 5.15 x 5.15 mm
Marker pen
Marker pen - X-PEN 0,35 - 0811228
Marker pen without ink cartridge, for manual labeling of markers, labeling extremely wipe-proof, line thickness 0.35 mm
Terminal marking
Zack Marker strip, flat - ZBF 5:UNBEDRUCKT - 0808642
Zack Marker strip, flat, Strip, white, unlabeled, can be labeled with: Plotter, Mounting type: Snap into flat marker groove,
for terminal block width: 5 mm, Lettering field: 5.1 x 5.2 mm
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https://www.phoenixcontact.com/us/products/2920078
Surge protection plug - PT 1X2-24DC/FM-ST - 2920078
Accessories
Zack Marker strip, flat - ZBF 5/WH-100:UNBEDRUCKT - 0808668
Zack Marker strip, flat, Strip, white, unlabeled, can be labeled with: Plotter, Mounting type: Snap into flat marker groove,
for terminal block width: 5 mm, Lettering field: 5.15 x 5.15 mm
Drawings
Dimensioned drawing
90
Circuit diagram
DC 1
11 FM
DC 5
12 FM
44,8
8
7
OUT
IN
16
15
10
65,5
9
51,5
*
3
4
The figure shows the complete module consisting of a base element and
connector
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https://www.phoenixcontact.com/us/products/2920078
Surge protection plug - PT 1X2-24DC/FM-ST - 2920078
Catalog photo
Figure may contain other products.
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