LOOP PROTECTOR. 420E225 Datasheet

420E225 PROTECTOR. Datasheet pdf. Equivalent

Part 420E225
Description (420E212 - 420E260) DUAL 4-20mA CONTROL LOOP PROTECTOR
Feature 05053 420E212 thru 420E260 DUAL 4-20mA CONTROL LOOP PROTECTOR APPLICATIONS ✔ Security Alarm System.
Manufacture Protek Devices
Datasheet
Download 420E225 Datasheet



420E225
420E212
thru
420E260
DUAL 4-20mA CONTROL LOOP PROTECTOR
APPLICATIONS
Security Alarm Systems
Industrial Control & Monitoring Systems
Remote Tech Site Station
Process Control Loops
IEC COMPATIBILITY (EN61000-4)
61000-4-2 (ESD): Air - 15kV, Contact - 8kV
61000-4-4 (EFT): 40A - 5/50ns
61000-4-5 (Surge): 8/20µs - 95A, Level 4 (Line-Gnd) & 48A, Level 4 (Line-Line)
420E
FEATURES
Designed for 4-20mA Current Loops
Automatic Reset - Does Not Interrupt Service
Permanent Two-Stage Line Pair Protection
Common Mode & Differential Mode Protection
Subnanosecond Response Time
Effective Against Lightning, Inductive Switching and ESD
MECHANICAL CHARACTERISTICS
Weight: 50 grams (Approximate)
Flammability Rating UL 94V-0
Device Marking: Logo, Terminal Designations, Date Code & Part Number
DESCRIPTION
The 420E2 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 420E2 series is designed to protect 4-20mA analog control loops from differential and
common mode transients. Terminals 1 and 2 are designed as the line pairs for both the line and
equipment side of the protector. A transient voltage suppressor is internally 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.
05053.R4 7/04
1 www.protekdevices.com



420E225
DEVICE CHARACTERISTICS
Operating Line Current
Operating Temperature
Storage Temperature
Transient Source Voltage
MAXIMUM RATINGS @ 25°C Unless Otherwise Specified
PARAMETER
VALUE
100
-55 to 100
-55 to 100
6
Transient Current (8/20µs) - Per Line
10
420E212
thru
420E260
UNITS
mA
°C
°C
kV
kA
PART
NUMBER
420E212
420E225
420E228
420E236
420E250
420E260
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified
MAXIMUM
OPERATING
LINE VOLTAGE
MAXIMUM
LEAKAGE
CURRENT
MAXIMUM
CLAMPING
VOLTAGE
(8/20µs)
MAXIMUM
CAPACITANCE
MAXIMUM
LINE THRUPUT
RESISTANCE
VOP
±VOLTS
@VWM
ID
µA
@ 2000A
VC
VOLTS
@ 0V, 1MHz
C
PF
R
OHMS
12.0 5.0
25.0 5.0
28.0 5.0
36.0 5.0
50.0 5.0
60.0 5.0
22 6000 12
44 3000 12
46 2800 12
60 1500 12
80 1200 12
95 1000 12
INSTALLATION INSTRUCTIONS
There are two (2) terminals on the LINE SIDE and three (3) wires on the
EQUIPMENT SIDE of this surge protection device (SPD). The Ground
lead is considered ground for both the input terminal and the equipment
wire connections. For the best results, the ground wire should be
connected to a low impedance ground or the green wire AC power
ground. It is recommended that a #14 standard wire be used for this
connection.
Field (current) loops or incoming signal/data lines are to be cut or
disconnected from the equipment to insert the SPD. The LINE SIDE
terminals of the protector are to be connected to the field loop wires.
The EQUIPMENT SIDE of the protector is connected to the equipment/
controller, etc. The location of the protector should be as close to the
equipment requiring protection.
05053.R4 7/04
2 www.protekdevices.com





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