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Relay Switch Configuration: 32 general purpose independent channels. 28 channels of Form C switching at 2A and 4 channels of Form A switching at 7 A. Relays can be connected to each other and backplane via removable terminal blocks.
Contact Configuration: General Purpose: 1-pole Form C. High Current: 1-pole Form A.
Connector Type: Two 50-pin male D-shells.
3740-ST Screw Terminal Option: #22 AWG typical wire size with 0.062 inch O.D. 84 conductors maximum. #16 AWG maximum wire size with 0.092 inch O.D. 44 conductors per card maximum.
Maximum Signal:
Level Form C: 300 V DC or RMS, 2 A switched (3 A carry), 60 Ω, 125 VA.
Form A: 250 VAC 7 A, 30 VDC 7 A, 210 Ω.
Common Mode Voltage: 300 V DC or RMS between any terminal and chassis.
Volt-Hertz Limit: 8×10^7
Contact Life:
Form C: >105 operations at maximum signal level. >108 operations no load.1
Form A: >105 operations at maximum signal level, >5×107 operations no load.1
Channel Resistance (end of contact life): <0.5 Ω.
Contact Potential: <±3 μV typical per contact.
Isolation: Channel-channel: 109 Ω, <200 pF. Common Mode: >1010 Ω, <150 pF.
Crosstalk (Channel-channel, 50 Ω load–50 Ω source): 100 kHz: <–50dB. 1 MHz: <–35dB. 1 MHz: <–15dB.
Bandwidth: 30 MHz.
General
Over-Temperature: Temperature sensor indicates over temperature.
Actuation Time: Form C: 4 ms. Form A: 10 ms.
Relay Type: Form C: Latching electromechanical. Form A: Nonlatching electromechanical.
Relay Drive Scheme: Direct.
Interlock: Backplane relays disabled when interlock connection is removed.
Operating Environment: Specified for 0° to 50 °C. Specified to 70% R.H. at 35°C.
Storage Environment: –25° to 65 °C.
Weight: 2.5 lbs.
Safety: Conforms to European Union Directive 73/23/EEC, EN61010-1.
EMC: Conforms to European Union Directive 2004/108/EC, EN61326-1.
