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Selection guide for surge protection in information technology

Easy to find!

The right surge protection for your interface.

Back to Product selection and planning assistance

Choosing the right surge protection in information technology is particularly challenging due to the wide range of different interfaces. The STOP-IT (Selection Tool for Protection of Information Technology) selection guide from Phoenix Contact provides support in choosing your ideal surge protection solution.

STOP-IT selection guide

The table below contains surge protective devices for data, telecommunications, measurement and control, and wireless systems, e.g., for Ethernet, ISDN, TTY (4 - 20 mA), INTERBUS, and PROFIBUS.

The interfaces for which we recommend surge protection are listed in alphabetical order in the first column.
The suitable surge protective device for the interface is described in the second column. Each protective device has a link to the technical data of the product.
In the last column, application examples can be downloaded.

Interface	Surge Protection	Application
ADSL 2+	PT 2-TELE & PT-IQ-1X2-TELE-UT DT-TELE-RJ45 MNT-TELE... & MNT-TAE D CTM 1X2-110AC & CTM 10-MAG	Download Application Example
ADVANT	PT-IQ-5-HF-12DC-UT PT 5-HF-12 DC-ST & PT 2X2-BE TTC-6P-3-HF-M-12DC-PT-I
ARCNET (Plus)	C-UFB- 5DC/E DT-LAN-CAT.6+ TTC-6P-3-HF-F-M-12DC-PT-I PT 3-PB-ST & PT 1X2+F-BE
ASI	PT 2+1-S-48DC/FM & PT-BE/FM PLT-SEC-T3-24-FM-PT	Download Application Example
ATM	DT-LAN-CAT.6+ D-LAN-19"...
Audio	PLT-SEC-T3-120-FM-PT

Interface	Surge Protection	Application
BITBUS	PT 5-HF-12 DC-ST & PT 2X2-BE PT-IQ-5-HF-12DC-UT
BLN (Building Level Network)	PT-IQ-1X2-24DC-UT PT-IQ-3-HF+F-12DC-UT TTC-6P-3-HF-F-M-12DC-PT-I TTC-6P-1X2-F-M-24DC-PT-I	Download Application Example
BOS (TETRA)	CN-UB-280DC-3-SB CN-LAMBDA/4-0.47-SB	Download Application Example
Binary switched signal (0-10V)	PT-IQ-4X1+F-12DC-UT PT-IQ-4X1+F-12DC-PT PT 4X1-12DC-ST & PT 4X1+F-BE TTC-6P-2X1-F-12DC-PT-I	Download Application Example
Binary switched signal (0-24V)	PT-IQ-4X1+F-24DC-UT PT-IQ-4X1+F-24DC-PT PT 4X1-24DC-ST & PT 4X1+F-BE TTC-6P-2X1-F-M-24DC-PT-I	Download Application Example
Burglar alarm	PT-IQ-3-HF+F-12DC-UT TTC-6P-3-HF-F-M-12DC-PT-I

Interface	Surge Protection	Application
C-BUS	PT 3-HF-12DC-ST & PT 1X2+F-BE PT-IQ-3-HF+F-12DC-UT TTC-6P-3-HF-F-M-12DC-PT-I
CAN- Bus & CANopen	PT 3-HF-12DC-ST & PT 1X2-BE PLT-SEC-T3-24-FM-PT PT-IQ-3-HF-12DC-UT TTC-6P-3-HF-F-M-12DC-PT-I & TTC-6P-T3-24DC-PT-I	Download Application Example
CC-LINK	TTC-6P-3-HF-F-M-12DC-PT-I TTC-6P-T3-24DC-PT-I PT-IQ-3-HF+F-12DC-UT
CC-LINK IE	DT-LAN-CAT.6+
CCTV	C-UFB- 5DC/E C-UB/E PT 3-PB-ST & PT 1X2+F-BE PT-IQ-3-PB+F-UT	Download Application Example
CCTV (ETHERNET)	DT-LAN-CAT.6+	Download Application Example
CS31	PT 1X2-12DC-ST & PT 1X2-BE PT-IQ-1X2-12DC-UT TTC-6P-1X2-12DC-PT-I
Cathodic protection monitoring	PT 2-F-ST & PT-BE/FM FLT-SEC-T1+T2-2C-350/25-FM	Download Application Example
Common referenced signal	PT-IQ-4X1+F-24DC-UT PT-IQ-4X1+F-24DC-PT PT 4X1-24DC-ST & PT 4X1+F-BE TTC-6P-2X1-F-24DC-PT-I	Download Application Example
Control-Net	C-UFB- 5DC/E
Controller Link (CLK)	PT-IQ-3-HF+F-12DC-UT TTC-6P-3-HF-F-M-12DC-PT-I DT-UFB-485/BS
Current Loop, 0(4) - 20 mA	TTC-6P-1X2-M-24DC-PT-I PT-IQ-1X2-24DC-UT CTM 1X2- 24DC & CTM 10-MAG CT-TERMIBLOCK 10DA	Download Application Example
Current Loop, 0(4) - 20 mA for Ex(i)	TTC-6P-1X2-M-EX-24DC-UT-I S-PT-EX-24DC	Download Application Example

Interface	Surge Protection	Application
DALI	PT-IQ-1x2-24DC-UT PLT-SEC-T3-230-FM-PT TTC-6P-1X2-24DC-PT-I
DCF 77	PT-IQ-1X2-5DC-UT C-UFB- 5DC/E TTC-6P-3-5DC-PT-I
DCS 1800	CN-UB-280DC-3-SB C7/16-LAMBDA/4-2.25-SB CN-LAMBDA/4-2.25-SB
DMX Bus	TTC-6P-3-HF-F-M-12DC-PT-I
DS1	D-DS1-A/RJ45-BB
DSL	PT 2-TELE DT-TELE-RJ45 MNT-TELE... CTM 1X2-110AC & CTM 10-MAG	Download Application Example
DSL on Cable TV	MNT-TV-SAT... C-TV/HIFI C-TV-SAT C-SAT-BOX
Data Highway (Plus), DH+	TTC-6P-3-HF-F-M-12DC-PT-I PT-IQ-3-HF+F-12DC-UT
DeviceNet	PT 3-HF-12DC-ST & PT 1X2-BE PLT-SEC-T3-24-FM-PM PT-IQ-3-HF-12DC-UT TTC-6P-3-HF-M-12DC-UT-I & TTC-6P-T3-24DC-PT-I	Download Application Example
Dupline	TTC-6P-1X2-M-24DC-PT-I PT-IQ-1X2-12DC-UT

Interface	Surge Protection	Application
E-BUS	TTC-6P-1X2-48DC-PT-I PT-IQ-1X2-48DC-UT	Download Application Example
E1	PT 2-TELE DT-TELE-RJ45 D-DS1-A/RJ45-BB
EIB (European Instalation Bus)	TTC-6-2-HC-24DC-PT-I	Download Application Example
ET 200	PT-IQ-3-PB-UT PT 3-PB-ST & PT 1X2-BE PT 5-HF-12 DC-ST & PT 2X2-BE D-UFB-PB
EX(I)	PT-IQ-1x2-EX-24DC-UT PT 2XEX(I)-24DC-ST & PT 2XEX(I)-BE PT 4-EX(I)-24DC-ST & PT 4-EX(I)-BE TTC-6P-1X2-M-EX-24DC-UT-I	Download Application Example
EtherCAT	D-LAN-CAT.5-FP
EtherNet/IP (incl. PoE)	DT-LAN-CAT.6+
Ethernet (10/100 Base T)	D-LAN-CAT.5-FP D-LAN-19"...
Ethernet (10G Base T, incl. PoE)	DT-LAN-CAT.6+
Ethernet Powerlink	D-LAN-CAT.5-FP

Interface	Surge Protection	Application
FIPIO / FIPWAY	PT 5-HF- 5 DC-ST & PT 2X2+F-BE PT-IQ-5-HF+F-5DC-UT TTC-6P-3-5DC-PT-I
FSK	PT 1X2- 5DC-ST & PT 1X2-BE PT-IQ-1X2-5DC-UT TTC-6P-3-5DC-PT-I
Factory Line (100 Base T)	DT-LAN-CAT.6+
Foundation Fieldbus Ex(i)	PT 2XEX(I)-24DC-ST & PT 2XEX(I)-BE TTC-6P-1X2-M-EX-24DC-UT-I	Download Application Example
Foundation Fieldbus Ex(i) with FISCO	TTC-6-3-HF-F-M-EX-24DC-UT-I TTC-6P-3-HF-F-M-EX-24DC-UT-I
Foundation Fieldbus H1	PT 2x2-FF-ST & PT 4-BE	Download Application Example
Four-wire measurement	PT 4-24DC-ST & PT 4-BE LIT 4-24 TTC-6P-3-24DC-PT-I	Download Application Example

Interface	Surge Protection	Application
G.703	PT 2-TELE DT-TELE-RJ45 CTM 1X2-110AC & CTM 10-MAG
GPS	CN-UB-280DC-3-SB C7/16-LAMBDA/4-2.25-SB
GSM (900, 1800)	CN-UB-280DC-3-SB C7/16-LAMBDA/4-2.25-SB CN-LAMBDA/4-2.25-SB
Genius I/O Bus	PT-IQ-1X2+F-12DC-UT TTC-6P-1X2-F-12DC-PT-I
Gigabit-Ethernet (10G Base T)	DT-LAN-CAT.6+

Interface	Surge Protection	Application
HART	PT 2XEX(I)-24DC-ST & PT 2XEX(I)-BE PT-IQ-2X2-EX-24DC-UT TTC-6P-1X2-M-EX-24DC-UT-I	Download Application Example
HDSL	PT 2-TELE DT-TELE-RJ45 CTM 1X2-110AC & CTM 10-MAG
HICOM PABX (UP_0E, U_PN)	CTM 1X2-110AC & CTM 10-MAG DT-TELE-RJ45 PT-IQ-1X2-TELE-UT PT 2-TELE
HomeWay	C-TV DT-LAN-CAT.6+

Interface	Surge Protection	Application
IEC-BUS	PT 5-HF- 5 DC-ST & PT 2X2-BE
INTERBUS Field multiplexer	PT 3-PB-ST & PT 1X2+F-BE MT-2/1-S- 24DC	Download Application Example
INTERBUS Remote Bus	DT-UFB-IB-RBI DT-UFB-IB-RB0	Download Application Example
INTERBUS-INLINE (I/O's)	TTC-6P-2X1-M-24DC-PT-I PT-IQ-4X1-24DC-UT & PT-IQ-2X2-24DC-UT CTM 1X2- 24DC & CTM 10-MAG	Download Application Example
INTERBUS-Inline remote bus	PT-IQ-5-HF+F-5DC-UT PT 5-HF-5DC-ST & PT 2x2+F-BE TT-SLKK5-F/110AC	Download Application Example
INTERBUS-Loop	TT-2-PE/S1- 24DC
IO-Link	PT-IQ-1x2-24DC-UT TTC-6P-1X2-24DC-PT-I
ISDN (S_2M-Bus)	DT-LAN-CAT.6+ CTM ISDN & CTM 10-MAG	Download Application Example
ISDN (S_O-Bus)	DT-LAN-CAT.6+ CTM ISDN & CTM 10-MAG	Download Application Example
ISDN (U_k0-Bus)	DT-TELE-RJ45 CTM 1X2-110AC & CTM 10-MAG PT 2-TELE MNT-TAE D	Download Application Example
ISDN (U_k2-Bus)	DT-TELE-RJ45 2x PT 2-TELE 2x CTM 1X2-110AC & CTM 10-MAG	Download Application Example
Industrial wireless	CSMA-LAMBDA/4-2.0-BS-SET CN-LAMBDA/4-5.9... CN-UB-280DC-3-SB

Interface	Surge Protection	Application
KNX	TTC-6-2-HC-24DC-PT-I	Download Application Example
Kathodischer Korrosionschutz	PT 2-F-ST & PT-BE/FM FLT-SEC-T1+T2-2C-350/25-FM

Interface	Surge Protection	Application
LCN	PLT-SEC-T3-230-FM-PT PLT-SEC-T3-24-FM-PT	Download Application Example
LON (Works)	TTC-6P-1X2-48DC-PT-I PT-IQ-1X2-48DC-UT	Download Application Example
LRE Network	TC-6P-3-HF-F-M-12DC-PT-I PT 2-TELE PT-IQ-1X2-TELE-UT	Download Application Example
LTE	CN-UB-280DC-3-SB CN-LAMBDA/4-2.25-SB CN-LAMBDA/4-5.9-SB VAL-MS-T1/T2 48/12.5/1+1V-FM	Download Application Example
LUXMATE-Bus	PT 2X2-HF-24 DC-ST & PT 2X2-BE	Download Application Example

Interface	Surge Protection	Application
M-BUS (Wattmeter)	TTC-6P-1X2-48DC-PT-I PT-IQ-1X2-48DC-UT
MODBUS RTU	PT-IQ-3-HF+F-12DC-UT TTC-6P-3-HF-F-M-12DC-PT-I
MODBUS(-PLUS)	PT 5-HF-12 DC-ST & PT 2X2+F-BE PT-IQ-5-HF+F-12DC-UT
MODBUS/TCP	D-LAN-CAT.5-FP
MP-Bus	TTC-6P-3-24DC-PT-I	Download Application Example
MPI Bus	TTC-6P-3-HF-M-12DC-PT-I PT-IQ-5-HF-5DC-UT PT-IQ-3-PB-UT
Melsec Net 2	C-UFB- 5DC/E C-UFB-24DC/E
Modem M1	TTC-6P-2X1-12DC-PT-I PT-IQ-2X1-12DC-UT PT 2X1- 5DC-ST & PT 2X1-BE PT-IQ-2x1-5DC-UT	Download Application Example

Interface	Surge Protection	Application
N1 LAN	TTC-6P-3-HF-F-M-12DC-PT-I
N2 Bus	PT 2X1- 5DC-ST & PT 2X1+F-BE PT-IQ-2x1+F-5DC-UT TTC-6P-3-5DC-PT-I
Namur sensors	PT-IQ-1X2-24DC-UT S-PT-EX-24DC TTC-6P-1X2-M-EX-24DC-UT-I	Download Application Example
novaNet (Bus EY3600)	TTC-6P-1X2-12DC-PT-I PT-IQ-1X2-12DC-UT

Interface	Surge Protection	Application
P-NET	PT 5-HF-12 DC-ST & PT 2x2-BE PT-IQ-5-HF-12DC-UT
PCS 1900	CN-UB-280DC-3-SB CN-LAMBDA/4-2.25-SB CN-UB-70DC-6…
Procontic CS31	TTC-6P-1X2-12DC-PT-I
Procontic T200	PT-IQ-5-HF+F-12DC-UT PT 5-HF-12 DC-ST & PT 2X2+F-BE
Profibus DP (FMS)	PT-IQ-3-PB-UT PT 3-PB-ST & PT 1X2-BE TTC-6P-3-HF-M-12DC-UT-I D-UFB-PB	Download Application Example
Profibus PA	PT 2XEX(I)-24DC-ST & PT 2XEX(I)-BE PT-IQ-1X2-EX-24DC-UT TTC-6P-3-HF-F-M-EX-24DC-UT-I S-PT-EX(I)-24DC
Profinet	DT-LAN-CAT.6+
Prozess Bus, Panel Bus (P-Bus)	PT-IQ-3-HF+F-12DC-UT TTC-6P-3-HF-M-12DC-PT-I TTC-6P-T3-24DC-PT-I

Interface	Surge Protection	Application
RS 422A, V.11, X.27, RS 423A	PT-IQ-5-HF+F-12DC-UT PT 5-HF-12 DC-ST & PT 2X2+F-BE
RS 449	PT-IQ-5-HF-12DC-UT PT 5-HF-12 DC-ST & PT 2X2-BE
RS 485	DT-UFB-485/BS TTC-6P-3-HF-F-M-12DC-PT-I PT-IQ-5-HF+F-12DC-PT & PT-IQ-3-HF+F-12DC-PT	Download Application Example
RS 485-iS	PT-IQ-1X2-EX-24DC-UT TTC-6P-1X2-M-EX-24DC-UT-I
RS-232-C / V.24	DT-UFB-V24/S-9-SB DT-UFB-V24/S-SB-SET TTC-6P-3-HF-F-M-24DC-PT-I
Radioline (2.4 GHz)	CN-LAMBDA/4-5.9-SB
Radioline (900 MHz)	CN-LAMBDA/4-2.25-SB

Interface	Surge Protection	Application
SDLC	PT 5-HF-12 DC-ST & PT 2X2+F-BE PT-IQ-5-HF+F-12DC-UT
SDSL	DT-TELE-SHDSL CTM 1X2-110AC & CTM 10-MAG
SERCOS III	D-LAN-CAT.5-FP
SHDSL	DT-TELE-SHDSL CTM 1X2-110AC & CTM 10-MAG	Download Application Example
SIGMALOOP (SIGMASYS)	TTC-6P-1X2-24DC-PT-I PT-IQ-1X2-24DC-UT
SIGMANET (SIGMASYS)	TTC-6P-1X2-24DC-PT-I PT-IQ-1X2-24DC-UT
SINEC L1	PT 5-HF- 5 DC-ST & PT 2X2+F-BE TT-SLKK5-F/110AC TT-SLKK5-S- 12DC	Download Application Example
SINEC L2 DP (~Profibus DP)	PT-IQ-3-PB-UT PT 3-PB-ST & PT 1X2-BE TTC-6P-3-HF-M-12DC-UT-I D-UFB-PB
SIOX field bus	PT 1X2-24AC-ST & PT 1X2-BE
SS97 SINIX	PT-IQ-5-HF+F-12DC-UT PT 5-HF-12 DC-ST & PT 2X2+F-BE DT-UFB-V24/S-9-SB
SSI	PT 4X1-12DC-ST & PT 4X1+F-BE PT 4-24DC-ST & PT 4-BE TTC-6P-2X1-F-12DC-UT-I	Download Application Example
STAEFA integral	PT-IQ-3-HF+F-12DC-UT TTC-6P-3-HF-F-M-12DC-PT-I	Download Application Example
SUCONET K	PT-IQ-3-HF-12DC-UT TTC-6P-3-HF-M-12DC-PT-I
SafetyBUS p	PT 2X2-HF-12 DC-ST & PT 2X2+F-BE
Satellite TV	C-SAT-BOX C-TV-SAT MNT-TV-SAT...	Download Application Example
SecuriLan-LON-Bus	TTC-6P-1X2-12DC-PT-I PT-IQ-1X2-12DC-UT
Six-wire measurement	PT 4-24DC-ST & PT 4-BE LIT 4-24 TTC-6P-3-24DC-PT-I	Download Application Example
Stromschleife, 0(4) - 20 mA	TTC-6P-1X2-M-24DC-PT-I PT-IQ-2X2-24DC-UT CTM 1X2- 24DC & CTM 10-MAG CT-TERMIBLOCK 10DA	Download Application Example
Stromschleife, 0(4) - 20 mA für Ex(i)	TTC-6P-1X2-M-EX-24DC-UT-I S-PT-EX-24DC	Download Application Example

Interface	Surge Protection	Application
T-DSL	PT 2-TELE DT-TELE-RJ45 MNT-TAE D CTM 1X2-110AC & CTM 10-MAG	Download Application Example
T1 (DS1)	D-DS1-A/RJ45-BB
TETRA	CN-LAMBDA/4-0.47-SB CN-UB-280DC-3-SB
TTY, 0(4) - 20 mA	2x TTC-6P-1X2-M-24DC-PT-I PT-IQ-2X2-24DC-UT CTM 1X2- 24DC & CTM 10-MAG
TV, Radio	MNT-TV-SAT... C-TV/HIFI C-TV-SAT C-SAT-BOX
Telephon analog	DT-TELE-RJ45 CTM 1X2-110AC & CTM 10-MAG PT 2-TELE TAE-TRAB FM-NFN-AP	Download Application Example
Temperature measurement with 2 wires (e.g. PT 100, PT 1000, NI 1000)	TTC-6P-2-HC-M-24DC-PT-I S-PT-EX-24DC	Download Application Example
Temperature measurement with 4 wires (e.g. PT 100, PT 1000, NI 1000)	PT 4-24DC-ST & PT 4-BE LIT 4-24 TTC-6P-3-24DC-PT-I	Download Application Example
Thermocouples	PT 4-5DC-ST & PT 4-BE TTC-6P-3-5DC-PT-I	Download Application Example
Three wire sensor	TTC-6P-3-24DC-PT-I	Download Application Example
Token Ring	DT-LAN-CAT.6+ D-LAN-19"... PT-IQ-5-HF-5DC-UT PT 5-HF- 5 DC-ST & PT 2X2-BE
Trusted wireless (Radioline)	CN-LAMBDA/4-5.9-SB
Two wire sensor with power supply	TTC-6P-2X1-F-M-24DC-PT-I TTC-6P-2X1-M-24DC-PT-I	Download Application Example

Interface	Surge Protection	Application
U-BUS	PT 4-F-ST & PT 4-BE	Download Application Example
UMTS	CN-UB-280DC-3-SB C7/16-LAMBDA/4-2.25-SB CN-LAMBDA/4-2.25-SB

Interface	Surge Protection	Application
VDSL 2	DT-TELE-RJ45 PT-IQ-1X2-TELE-UT CTM 2X1-180DC-GS & CTM 10-MAG MNT-TELE… & MNT-TAE D
VG-AnyLAN	DT-LAN-CAT.6+ D-LAN-19"...
Video-Signal	C-UFB- 5DC/E C-UB/E PT 3-PB-ST & PT 1X2+F-BE PT-IQ-3-PB+F-PT	Download Application Example
Video-Signal (Ethernet CCTV)	DT-LAN-CAT.6+	Download Application Example
VoIP	TTC-6P-3-HF-F-M-24DC-PT-I

Interface	Surge Protection	Application
WLAN (2.4 GHz)	CSMA-LAMBDA/4-2.0-BS-SET CN-LAMBDA/4-5.9... CN-UB-280DC-3-SB
WLAN (5 GHz)	CN-LAMBDA/4-5.9… CN-UB-70DC-6…
WiMAX (mobile)	CN-LAMBDA/4-5.9… CN-UB-70DC-6…

Interface	Surge Protection	Application
X.21/X.24	PT-IQ-5-HF+F-12DC-UT PT 5-HF-12 DC-ST & PT 2X2+F-BE CT 10-18FS+F/PE-24	Download Application Example
X.25/X.31	PT-IQ-5-HF+F-12DC-UT PT 5-HF-12 DC-ST & PT 2X2+F-BE CT 10-18FS+F/PE-24

Interface	Surge Protection	Application
0(4) - 20 mA (Current Loop)	TTC-6P-1X2-M-24DC-PT-I PT-IQ-1X2-24DC-UT CTM 1X2- 24DC & CTM 10-MAG CT-TERMIBLOCK 10DA	Download Application Example
0(4) - 20 mA (Current Loop) for Ex(i)	TTC-6P-1X2-M-EX-24DC-UT-I S-PT-EX-24DC	Download Application Example
0-10V (Binary switched signal)	PT-IQ-4X1+F-12DC-UT PT-IQ-4X1+F-12DC-PT PT 4X1-12DC-ST & PT 4X1+F-BE TTC-6P-2X1-F-12DC-PT-I	Download Application Example
0-24V (Binary switched signal)	PT-IQ-4X1+F-24DC-UT PT-IQ-4X1+F-24DC-PT PT 4X1-24DC-ST & PT 4X1+F-BE TTC-6P-2X1-F-M-24DC-PT-I	Download Application Example
2 wire sensor with power supply	TTC-6P-2X1-F-M-24DC-PT-I TTC-6P-2X1-M-24DC-PT-I	Download Application Example
2 wires sensor	TTC-6P-2-HC-M-24DC-PT-I S-PT-EX-24DC	Download Application Example
3 wire sensor	TTC-6P-3-24DC-PT-I	Download Application Example
4 wire measurement	PT 4-24DC-ST & PT 4-BE LIT 4-24 TTC-6P-3-24DC-PT-I	Download Application Example
6 wire measurement	PT 4-24DC-ST & PT 4-BE LIT 4-24 TTC-6P-3-24DC-PT-I	Download Application Example