645S Series - Solid State On / Off Motor Relays
Motor Relays
The 645S series of solid state relays uses back to back SCRs for on/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 75 amps and up to a nominal voltage of 480VAC. Both random turn on or zero cross construction is available.
Additional contact configurations and coil options are available – please use the RFQ/RFI tab above to submit your request.
Additional contact configurations and coil options are available – please use the RFQ/RFI tab above to submit your request.
| Items |
 645SZ475-3-32VDC 645S Series - Solid State On / Off Motor Relays |
645SR450-3-32VDC 645S Series - Solid State On / Off Motor Relays |
645SZ450-90-280VAC 645S Series - Solid State On / Off Motor Relays |
645SZ475-90-280VAC 645S Series - Solid State On / Off Motor Relays |
645SR450-90-280VAC 645S Series - Solid State On / Off Motor Relays |
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| Series | 645S | |||||||||
| Input Voltage | 3-32 VDC | 3-32 VDC | 90-280 VAC | 90-280 VAC | 90-280 VAC | |||||
| Input Characteristics | DC | DC | AC | AC | AC | |||||
| Must Release Voltage | 1VDC | 1VDC | 10VAC | 10VAC | 10VAC | |||||
| Maximum Input Current | 80 mA | 80 mA | 30 mA | 30 mA | 30 mA | |||||
| Reverse Polarity Protection | Yes | Yes | ||||||||
| Output Characteristics | 75 A | 50 A | 50 A | 75 A | 50 A | |||||
| Rated Load Current (rms) | 75 A | 50 A | 50 A | 75 A | 50 A | |||||
| Min. Load current to maintain on | 250 mA | |||||||||
| Non-Repetitive Surge Current (1 cycle) | 1150 A | 520 A | 520 A | 1150 A | 520 A | |||||
| Maximum I2T for Fusing (Asquared sec) | 2600A2 S | 1035A2 S | 1035A2 S | 2600A2 S | 1035A2 S | |||||
| Suggested Heatsink | 0.14 ºC/W+FAN(2) | |||||||||
| Load Voltage Range | 51 to 480VAC | 52 to 480VAC | 54 to 480VAC | 55 to 480VAC | 56 to 480VAC | |||||
| Frequency Range | 48 to 63 Hz | 49 to 63 Hz | 51 to 63 Hz | 52 to 63 Hz | 53 to 63 Hz | |||||
| Peak Blocking Voltage | 801 to 1200 | 802 to 1200 | 804 to 1200 | 805 to 1200 | 806 to 1200 | |||||
| Maximum Rate of Rise Off State Voltage (dv/dt) | 501 V/uS | 502 V/uS | 504 V/uS | 505 V/uS | 506 V/uS | |||||
| Max. Off state leakage current (rms) | 10 mA | |||||||||
| Max. On State Voltage Drop | 1.8 VAC | |||||||||
| Maximum Turn-On Time at 60 Hz | 8.3 ms | |||||||||
| Maximum Turn-Off Time at 60 Hz | 8.3 ms | |||||||||
| Dielectric Strength - I or O to case | 4000 Vrms | |||||||||
| Operating Temperature Range | -30 to 80 ºC | |||||||||
| Storage Temperature Range | -40 to 100 ºC | |||||||||
| Weight | 320 g | |||||||||
| Input Terminal Size | M3.5 | |||||||||
| Output Terminal Size | M4 | |||||||||
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