645T Series - Solid State On / Off 10 - 40 Amp $ 64 E52197 The 645T series of solid state relays uses triacs for on/off control of three phase loads. Operation is three pole normally open. Inputs can be AC or DC operated. Load currents can range from 10 to 50 amps and up to a nominal voltage of 480VAC. Both random turn on or zero cross is available. GENERAL SPECIFICATIONS (@ 25 C) Input Characteristics Input Voltage Must Release Voltage Maximum Input Current Reverse Polarity Protection Output Characteristics Min. Load current to maintain on Non-Repetitive Surge Current (1 cycle) Maximum I2T for Fusing (Asquared sec) Suggested Heatsink C/W Load Voltage Range Frequency Range Peak Blocking Voltage Maximum Rate of Rise Off State Voltage (dv/dt) Max. Off state leakage current (rms) Max. On State Voltage Drop Maximum Turn-On Time @ 60 Hz Maximum Turn-Off Time @ 60 Hz DC Input AC Input 3 - 32VDC 1VDC 80mA Yes 90 - 280 VAC 10VAC 30 mA N/A 10 Amp 25 Amp 40 Amp 100mA 100A 50A2 S 1.0C/W 50 to 480VAC 47 to 63 Hz 800 to 1200 250V/uS 10mA 1.6VAC 8.3mS 8.3mS 120mA 250A 312A2 S 0.14C/W 50 to 480VAC 47 to 63 Hz 800 to 1200 250V/uS 10mA 1.6VAC 8.3mS 8.3mS 250mA 300A 450A2 S 0.14C/W+FAN 50 to 480VAC 47 to 63 Hz 800 to 1200 250V/uS 10mA 1.6VAC 8.3mS 8.3mS Miscellaneous Characteristics Dielectric Strength - I or O to case Operating Temperature Range Storage Temperature Range Weight Input Terminal Size Output Terminal Size 3/13 4000Vrms -30 to 80C -40 to 100C 320g M3.5 M4 www.struthers-dunn.com (843) 664-3303 Outline Dimensions Dimensions Shown in inches & (millimeters) Solid State On/Off Wire Diagram 4.14 (105.1) L1 L2 L3 .75 (19.1) 3.72 (94.6) 1.29 (32.8) .93 (23.5) .21 (5.3) Section 3 Motor Relays 15 - 75 Amp 440VAC F1 R F2 F3 S 2.18 2.93 (55.4) 1.88 (74.6) (47.7) .83 (21.6) T + U V .02 (.5) O .50 (12.7) O .21 (5.3) W Motor 3 1.17 (29.7) Derating Curve 45 Ordering Code 645 T Z or R 4 10 3-32VDC Series 645 Load current (Amps) 40 35 30 25 20 15 10 Switching Triac - CODE T 0 10 20 30 40 50 60 70 80 Maximum ambient temperature (C) Turn on Zero cross - CODE Z Random turn on CODE R Load Voltage 480VAC - CODE 4 Maximum Load Current 10, 25, 40 (Amp) Input Voltage 3-32VDC 90-280VAC www.struthers-dunn.com (843) 664-3303 3/14