Protekdevices 420LE60, 420LE35, 420LE28, 420LB60, 420LB35 Datasheet

...
05048
420LE28
thru
. . . engineered solutions for the transient environment
APPLICATIONS
Multi Process Control LoopsFire & Security SystemsPetro-Chemical PlantsRefineries & Tank Farms
IEC COMPATIBILITY (EN61000-4)
61000-4-2 (ESD): Air - 15kV, Contact - 8kV61000-4-4 (EFT): 40A - 5/50ns61000-4-5 (Surge): 8/20µs - 95A, Level 4(Line-Gnd) & 48A, Level 4(Line-Line)
FEATURES
Designed for 4-20mA Current LoopsAutomatic Reset - Will Not Interrupt ServicePermanent Two-Stage Line Pair ProtectionLine-to-Ground (Common) & Line-to-Line (Differential) ProtectionSubnanosecond Response TimeEffective Against Lightning, Inductive Switching & ESD
420LB60
420LE PACKAGE
MECHANICAL CHARACTERISTICS
Module Weight 160 grams (Approximate)Board Weight 32 grams (Approximate)Flammability Rating UL 94V-0Device Marking: Part Number, Logo, Date Code, and Ter minal Designations for the LE Device
420LB BOARD
DESCRIPTION
The 420LE/B series is a two stage transient voltage protector providing primary and secondary protection against lightning, inductive switching and electrostatic discharge (ESD) transient threats. The first stage diverts the transient current through the ground terminal return path and the second stage clamps the voltage to a safe level without interruption of service.
The 420LE/B series is designed to protect data lines from differential (line to line) and common mode (line to ground) transients. Terminals 1 and 2, 3 and 4 for the 420LE and pins 2 and 3, 4, and 5 for the 420LB are designated as line pairs. Each line pair is referenced to ground. A transient voltage suppressor is connected across each line pair for differential mode protection. Each line pair is referenced to ground.
This product can also be used on telephone, signal/data lines, security, timing and control interface circuits. For most applications, the product should be located as close as possible to the equipment being protected. A low impedance grounding system is impor­tant to maintain a low voltage clamp between the line-to-ground connection.
05048.R2 7/02
1
www.protekdevices.com
DEVICE CHARACTERISTICS
420LE28
thru
420LB60
MAXIMUM RA TINGS @ 250C
Operating Line Current 100mA Operating Temperature -55 to 100 Storage Temperature -55 to 100 Transient Source Voltage 6kV
Transient Current (8/20µs) 10kA
ELECTRICAL CHARACTERISTICS @ 250C Ambient Temperature
MAXIMUM
OPERATING
0
PROTEK
C
0
C
PART
NUMBER
LINE VOLTAGE
V
OP
± VOLTS
420LE28 420LE35 420LE60 420LB28 420LB35 420LB60
28.0
35.0
60.0
28.0
35.0
60.0
MAXIMUM
LEAKAGE
CURRENT
@ V
OP
I
D
µA
5.0
5.0
5.0
5.0
5.0
5.0
MAXIMUM
CLAMPING
VOLTAGE
(8/20µs)
@2,000A
V
C
VOLTS
40 60 85 40 60 85
MAXIMUM
CAPACITANCE
@ 0 V, 1 MHz
C
pF
2800 1500 1000 2800 1500 1000
MAXIMUM
LINE THRUPUT
RESISTANCE
R
OHMS
12 12 12 12 12
12
INSTALLATION INSTRUCTIONS
There are five (5) terminals on the LINE SIDE and five (5) terminals on the EQUIPMENT SIDE of the 420LE, 4 data lines and one ground. Both grounds are connected together internally. A single low impedance is ground sufficient. Incoming data lines are cut or disconnected from the equipment to insert the 420LE/B products. The incoming lines are to be connected to the line side terminals as the equipment side lines are connected to the equipment side terminals. The location of the product should be as close to the equipment as possible. The 420LE/B series is designed with a short circuit failure mode to give maximum protection. A fuse, fussable link, or circuit breaker is recommended for each data/signal line on the input side for those that require an open circuit failure mode.
Caution: A low DC resistance ground may not be a good ground. Lightning contains a broad spectrum of frequencies up to 1 MHz. A low impedance path to ground at the transient frequencies is necessary. A ground strap is recommended or a #6 AWG stranded wire. For wire lengths over 1.5 meters, there may be some excessive line to earth potential under severe thunderstorm conditions.
420LE CASE OUTLINE
420LB BOARD OUTLINE
3.8 MAX (96.5mm)
3.25±0.015
(82.6mm±0.38mm)
WARNING:
EQUIPMENT
LINE
1.125
(28.575mm)
Adhesive Mylar Label T ermi nal Screw
T erminal Strip
0.61 MAX (15.5mm)
COPYRIGHT © ProTek Devices 2001
SPECIFICATIONS: ProTek reserv es the right to change the electrical and or mechanical characteristics described herein without notice (except JEDEC). DESIGN CHANGES: ProT ek reserves the right to discontinue product lines without notice, and that the final judgement concerning selection and specifications is the buyer’s and that in furnishing engineering and technical assistance, ProT ek assumes no responsibility with respect to the selection or specifications of such products.
124 GND3
#6 Screw
21 4GND 3
Mounting Hole for #8 Screw
2.25 MAX (57.2mm)
1.19 MAX (30.2mm)
0.325 MAX (8.25mm)
EQUIPMENT
0.30 MAX (7.6mm)
OUTPUT Connected to Transmit/Receiver Circuits
NOTE: I/O contacts spaced at 0.156 (3.96 mm) centers
Orientation Notch
2
5
3.8 MAX (95.5mm)
3.0 MAX (76.2mm)
1.9 MAX
LINE
(48.2mm)
GND
12 15
0.07
(17.8mm)
INPUT Connected to Lines From Out Side World
ProTek Devices 2929 South Fair Lane, Tempe, AZ 85282 Tel: 602-431-8101 Fax: 602-431-2288
E-Mail: sales@protekdevices.com Web Site: www.protekdevices.com
www.protekdevices.com205048.R2 7/02
CONTINUITY
INPUT
12 13 14 15
OUTPUT
5 4 3 2
Loading...