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| 05048 420LE28 thru Only One Name Means ProT ek'TionTM 420LB60 TWO LINE PAIR 4-20mA CONTROL LOOP PROTECTOR APPLICA TIONS Multi-Process Control Loops Fire & Security Systems Petro-Chemical Plants Refineries & Tank Farms IEC COMPA TIBILITY (EN61000-4) 61000-4-2 (ESD): Air - 15kV, Contact - 8kV 61000-4-4 (EFT): 40A - 5/50ns 61000-4-5 (Surge): 8/20s - 95A, Level 4 (Line-Gnd) & 48A, Level 4 (Line-Line) FEA TURES 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: 420LB - 28 grams & 420LE - 142 grams (Approximate) Flammability Rating UL 94V-0 Device Marking: Case - Logo, Terminal Designations & Part Number Board - Logo, Date Code & Part Number 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. 420LB 420LE 05048.R3 11/03 1 www.protekdevices.com 420LE28 thru 420LB60 DEVICE CHARACTERISTICS MAXIMUM RATINGS @ 250C Operating Line Current 100mA Operating Temperature -55 to 1000C Storage Temperature -55 to 1000C Transient Source Voltage 6kV Transient Current (8/20s) 10kA ELECTRICAL CHARACTERISTICS @ 250C Ambient Temperature MAXIMUM OPERATING LINE VOLTAGE MAXIMUM LEAKAGE CURRENT @ VOP ID A 5.0 5.0 5.0 5.0 5.0 5.0 MAXIMUM CLAMPING VOLTAGE (8/20s) @2,000A VC VOLTS 40 60 85 40 60 85 MAXIMUM MAXIMUM CAPACITANCE LINE THRUPUT RESISTANCE @ 0V, 1 MHz C pF 2800 1500 1000 2800 1500 1000 PROTEK PART NUMBER VOP VOLTS 420LE28 420LE35 420LE60 420LB28 420LB35 420LB60 28.0 35.0 60.0 28.0 35.0 60.0 R OHMS 12 12 12 12 12 12 INST ALLA TION 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 indicative of a good lightning 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. 05048.R3 11/03 2 www.protekdevices.com 420LE28 thru 420LB60 PACKAGE OUTLINE & DIMENSIONS 420LE CASE OUTLINE 3.8" MAX (96.5mm) 3.25"0.015" (82.6mm0.38mm) WARNING: 420LB BOARD OUTLINE 0.325" MAX (8.25mm) 3.8" MAX (95.5mm) 3.0" MAX (76.2mm) 3 EQUIPMENT 4 LINE GND LINE 1.125" (28.575mm) 2 1 Adhesive Mylar Label 4 3 GND 2 1 2.25" MAX (57.2mm) EQUIPMENT 1.9" MAX (48.2mm) CONTINUITY Terminal Screw Mounting Hole for #8 Screw Orientation Notch 0.30" MAX (7.6mm) Terminal Strip 0.61" MAX (15.5mm) #6 Screw 1.19" MAX (30.2mm) 2 5 GND 12 15 INPUT 12 13 14 15 OUTPUT 5 4 3 2 OUTPUT Connected to Transmit/Receiver Circuits 0.07 (17.8mm) INPUT Connected to Lines From Out Side World NOTE: I/O contacts spaced at 0.156" (3.96 mm) centers COPYRIGHT (c) ProTek Devices 2003 SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteristics described herein without notice (except JEDEC). DESIGN CHANGES: ProTek 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, ProTek assumes no responsibility with respect to the selection or specifications of such products. 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.com 05048.R3 11/03 3 |
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