lead, 85kA
EPD100HZ120V
120VAC, 100HZ primary surge protector,
fused, TD Technology, 120kA
EPD100HZ120240V 120/240VAC, 100HZ, primary surge protector,
fused, TD Technology, 120kA
EPD100HZ240V
240VAC, 100HZ primary surge protector,
fused, TD Technology, 120kA
Lightning
Threat
Direct &
Indirect
Power
Factor
Capacitor
Switching
Utility
Reclosure
Track
Circuits
Entrance
Panel
Vac
Vac
Vac
Vac
Vac
ETSP
Primary Parallel
TVSS & Filter
Load
Center
Typical Signal Bungalow Power Protection Layout
WITH TRANSIENT 31
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Part Number
Description
EPD1224ATAAR
12 & 24VDC secondary power protector, 30A max load
EPD120TDAARB
120VAC secondary power protector, 30A max load
EPD240TDAARB
240VAC secondary power protector, 30A max load
ETSP23050
50VDC / 35VAC Signal Protector, 30kA,
2 terminal arrestor
ETSP33050
50VDC / 35VAC Signal Protector, 30kA,
3 terminal arrestor
ETSP230170
170VDC / 120VAC Signal Protector, 30kA,
2 terminal arrestor
ETSP330170
170VDC / 120VAC Signal Protector, 30kA,
3 terminal arrestor
POWER QUALITY PROBLEMS
Using ERICO
®
Protection Devices For Total Facility Protection
Secondary Series
TVSS & Filter
EPD120TDAARB
EPD240TDAARB
EPD1224ATAAR
EPD1224ATAAR
Vac
Vac
Vac
Vdc
Vdc
Vdc
Vdc
Battery
Charger
Battery
Charger
Batteries
Batteries
Secondary
Series
TASS &
Filter
12V
Sensitive
Electronics
24V
Sensitive
Electronics
Modem,
Computer
Equipment
Etc.
Secondary Series
TVSS & Filter
Secondary Series
TVSS & Filter
TDF Series
DISCRIMINATING (TD) TECHNOLOGY 32
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CRITEC
®
EPD Power Surge Devices Transient Discriminating Technology helps ensure safe operation
during abnormal over voltage events Parallel hybrid TVSS technology Low let-through voltage Visual status indication 5 year limited warranty Transient Discriminating Technology helps ensure safe operation
during abnormal over voltage events Series hybrid TVSS technology Optimal let-through voltage performance Visual status indication 5 year limited warranty
PRIMARY SURGE
PROTECTION
Part Number
Description
EPD120/240TDFL
120/240VAC primary surge protector, TD
Technology, flying lead, 85kA
Part Number
Description
EPD100HZ120V
120VAC, 100HZ, primary surge protector, fused,
TD Technology, 120kA
EPD100HZ120240V 120/240VAC, 100HZ, primary surge protector,
fused, TD Technology, 120kA
EPD100HZ240V
240VAC, 100HZ, primary surge protector, fused,
TD Technology, 120kA
Contact ERICO
®
for additional information on our full line of
CRITEC surge protection devices. 33
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CRITEC
®
ETSP Track Circuit
Protection Devices Hybrid technology comprising gap-type voltage switching and
varistor-type voltage clamping components Design helps ensure a fail-safe, open-circuit, failure mode Visual status indication to aid serviceability Device and cover plainly marked with voltage and part number
to help ensure proper application 50kA maximum surge rating provides protection suitable for
exposed trackside equipment Low let-through voltage Epoxy coating helps ensure stability of operation under adverse
conditions and in locations of high humidity 5 year limited warranty
PRIMARY SURGE
PROTECTION
Part Number
Description
ETSP23050
50VDC/35VAC Signal Protector, 30kA, 2 terminal
arrestor
ETSP33050
50VDC/35VAC Signal Protector, 30kA, 3 terminal
arrestor
ETSP230170
170VDC/120VAC Signal Protector, 30kA, 2
terminal arrestor
ETSP330170
170VDC/120VAC Signal Protector, 30kA, 3 terminal
arrestor 34
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SECONDARY SURGE
PROTECTION
CRITEC
®
EPD Power Surge Devices Series hybrid TVSS technology Universal design for 12VDC & 24VDC applications 30A series filter High surge rating provides a high level of protection and long
operational life Low let-through voltage RFI/EMI filtering Visual status indication AAR terminals 5 year limited warranty
Part Number
Description
EPD1224ATAAR
12 & 24VDC secondary power protector, 30A max
load
EPD120TDAARB
120VAC secondary power protector, 30A max load
EPD240TDAARB
240VAC secondary power protector, 30A max load 35
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PERIPHERAL
POWER PROTECTION
DINLINE SURGE FILTERS
CRITEC
®
Transient Discriminating Filter &
DINLINE Surge Filter (TDF & DSF) Compact design small footprint High efficiency sine wave filtering DIN rail mount Status indication High surge rating, 50kA (TDF), 8kA (DSF) TD technology
DIN SURGE DIVERTER Photo Voltaic and Telepower distribution Surge rating to 40kA - Ideal for exposed wiring 24VDC & 48VDC distribution systems
Part Number
Description
DSF6A30V
24VDC/30VAC 1 phase 2W+G, 6A series filter
TDF3A120V
120V 1 phase 2W+G, 50kA, 3A series filter
TDF3A240V
240V 1 phase 2W+G, 50kA, 3A series filter
TDF10A120V
120V 1 phase 2W+G, 50kA, 10A series filter
TDF10A240V
240V 1 phase 2W+G, 50kA, 10A series filter
TDF20A120V
120V 1 phase 2W+G, 50kA, 20A series filter
TDF20A240V
240V 1 phase 2W+G, 50kA, 3A series filter
Part Number
Description
DSD1402BR24/48
24/48VDC 36 mm DIN 43 880 Profile, 40kA 8/20us 36
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COMMUNICATIONS
& DATA EQUIPMENT
PROTECTION
CONTROL SIGNAL
EQUIPMENT PROTECTION
Universal Transient Barrier (UTB and UTBTA)
Rail Transient Barriers (RTB) Protection of low voltage circuits and transducers Separate plug and base design facilitates ease of module
replacement Efficient multiple stage clamping circuit technology helps ensure
lowest possible residual let-through voltage Common-mode and differential-mode protection protects
against both possible surge conditions Ease of grounding through DIN mounting rail or via terminal Surge rating to 20kA ideal for exposed wiring 5 year Limited Warranty Includes all features of UTB plus fail-safe, open circuit, failure
mode.
Part Number
Description
UTB5
0-7Vpk, 20kA, 1.5A Load Current
UTB15
5-18Vpk, 20kA, 1.5A Load Current
UTB30
15-33Vpk, 20kA, 1.5A Load Current
UTB60
30-64Vpk, 20kA, 1.5A Load Current
UTB110
120V
AC
, 20kA, 1.5A Load Current
UTBTA
UTB, Secondary Telephone Protector
Part Number
Description
RTB12S3
12V
DC
, 20kA, 1.5A Load Current
RTB30S3
30V
DC
, 20kA, 1.5A Load Current
RTB50S2
50V
DC
, 20kA, 1.5A Load Current
RTB60S1
60V
DC
, 20kA, 1.5A Load Current 37
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COMMUNICATIONS
& DATA EQUIPMENT
PROTECTION
RADIO COMMUNICATIONS
PROTECTION
Coaxial Surge Protector - CSP Robust design Simple plug-in installation CSP models to suit N and BNC cable terminations CSP bulkhead N-type versions available High impulse current rating (20kA 8/20s) Wide operating frequency spectrum Low insertion and return loss Mounting bracket and ground lead included CE approved
How to Choose the Correct CSP
For RF circuit protection the CSP is available with a choice of two
nominal clamping voltages. The selection of the CSP unit is based on
the peak transmitting power of the communication circuit. From this
the peak circuit voltage is calculated and the CSP with the next
highest clamping voltage is selected.
The formula is:
Vpeak = VSWR x 1.4 x Sqrt(50 x Transmit Power)
Where VSWR is the Voltage Standing Wave Ratio (use 1.5 if unsure)
and Transmit Power is in Watts.
If Vpeak <72V use CSPxxx90
If Vpeak >72V & <480V use CSPxxx600
Part Number
Description
CSPNMF90
N-Type M to F, 72-108V
CSPNMF600
N-Type M to F, 480-720V
CSPBNC90
BNC-Type M to F, 72-108V
CSPBNC600
BNC-Type M to F, 480-720V
CSPNB90
Bulkhead N-Type F to F, 72-108V
CSPNB600
Bulkhead N-Type F to F, 480-720V