Features ■ Fits single or dual conduit ports ■ Weatherproof ■ Long life, high operational reliability ■ Stainless steel construction 1669 Series – Transient Protector Used for full weather protection of field transmitters and instrumentation operating on 24-28 V systems, the 1669 Series protects sensitive I/O circuitry from surges of any polarity or magnitude. Principal use is on 4-20 mA control loops and can be used on grounded (+ or -) or ungrounded circuits. Able to survive and protect even from direct lightning strikes to the transmitter ground or field wiring. Automatic recovery after passage of the surge. Long life, high operational reliability. Construction is hybrid 3-stage design, using a high surge capacity Balanced Trigard® Gas Tube protector, coordination impedance and silicon suppressors to provide differential and common mode protection with very low clamping levels for delicate loads. The housing is thick walled schedule 40, type 303 stainless steel. Wiring is #20 (.5 mm2) 1000 V, PVC insulated. Solid red and black colors are used for the input; striped colors signify the protected output. The protector ground wire (green) is electrically bonded to the metallic housing; it is for connection to the grounding screw within the field device. Use Model 1669-02/06 for standard ground resistance conditions. Use Model 1669-01 / 05 with higher voltage isolation to ground for sites with high resistance soil conditions or where significant ground potential differences are known to exist. Characteristics Model 1669-01 Model 1669-02 Model 1669-05 Model 1669-06 Warranty ...................................................................................3 years ................................................. 3 years Maximum Signal Voltage ..........................................................30 Vpk ................................................. 30 Vpk DC Clamping Voltage L-L.......................................................................................36 V ..................................................... 36 V L-G ......................................................................................250 V ................................................... 36 V Capacitance, 1 MHz, max L-L.......................................................................................1200 pF ............................................... 2000 pF L-G ......................................................................................40 pF ................................................... 2000 pF Series Resistance, per line .......................................................22 Ω..................................................... 22 Ω Inductance, per line, max ........................................................1 µH ..................................................... 1 µH DC Leakage, 24 Vdc, max........................................................1 µA ..................................................... 1 µA Impulse Clamping Voltage: L-L ................................................50 V ..................................................... 50 V 1 kA (L+L)-G, 10/1000 µs, 500 V/µs: L-G ..........................750 V ................................................... 70 V Ambient Temperature Range, Storage .....................................65 °C to +130 °C ................................. 65 °C to +130 °C Operating Temperature Non-hazardous areas..........................................................40 °C to +100 °C ................................. 40 °C to +100 °C Hazardous areas .................................................................20 °C to + 55 °C .................................. 20 °C to + 55 °C Maximum Load Current............................................................150 mA ................................................ 150 mA - Except when limited for T5 conditions (.73 W ..................129 mA ................................................ 129 mA Humidity ...................................................................................0 - 95 % Condensing .......................... 0 - 95 % Condensing Altitude, Operating ...................................................................6,000 m ............................................... 6,000 m Weight 1669-01 / 02 .......................................................................150 g ................................................... 150 g 1669-05 / 06 .......................................................................220 g ................................................... 220 g Component Response Time.....................................................1 ns...................................................... 1 ns Surge Life (L+L)-G 20 kA 8/20 µs ......................................................................20 times............................................... 20 times 1 kA 10/1000 µs ..................................................................1000 times........................................... 1000 times Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications 1669 Series – Transient Protector Product Dimensions 1669-05, 1669-06 1669-01, 1669-02 1/2-14 NPT 1/2-14 NPT, 2 PLCS. 100.00 (3.94) 300 TYP. (11.81) 300 TYP. (11.81) DIMENSIONS: This ‘double ended’ type is used when the field instrument has only a single conduit entry port; the protector attaches to the instrument, and the connection to the field wiring is made inside an external, appropriately rated box connected to the other end of the protector. 115.00 (4.53) MILLIMETERS (INCHES) The ‘single ended’ protectors are useful for field devices with dual conduit ports; the field wiring connects to one port while the 1669 protector connects into the second - all connections are made within the instrument’s wiring cavity. This installation simplifies the task of maintenance or of adding a protector into an existing loop. Installation Diagrams 1669-01, 1669-02 (For control room protector use 1820-28-A1/A3) 1669 LINE EQUIP 1669-05, 1669-06 (For control room protector use 1820-28-A1/A3) 1669 Asia-Pacific: Tel: +886-2 2562-4117 Fax: +886-2 2562-4116 How To Order 1669 - XX Model Number Designator 01 05 02 06 Europe: Tel: +41-41 768 5555 Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 Fax: +1-951 781-5700 www.bourns.com REV. G 04/09 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications