Agilent Technologies E2251A user manual E2274A 4-Channel Power Relay Wiring Information

E2274A 4-Channel Power Relay Wiring Information

MAXIMUM VOLTAGE/CURRENT: The maximum voltage that may be applied to any connector on the E2274A is 125 VDC, 141 VAC rms, or 200 VAC peak. These limits apply only if the product is installed in a humidity-con- trolled (<60% RH) environment where airborne contami- nants and transients are controlled, and there is NOT a relay connection made to power mains. If these condi- tions CANNOT be maintained, then the maximum volt- age is 60 VDC, 48 VAC rms or 68 VAC peak.

The maximum current (non-inductive) that may be applied to the E2274A is 5 ADC, 5 AACpeak per switch. Maximum power is 100W DC, 100VA AC, per switch; 300WDC, 300VA AC per M-module.

NC = Normally Closed
NO = Normally Open	No Connection: Pins 7, 19, 26
com = Common	CGND: Pins 14, 15, 30, 37, 44

Caution All three connector pins for each relay contact must be connected together in the field wiring for maximum current capability. For example, for Channel 1, pins 1, 16, and 31 (for NC contacts) must be wired together in the field wiring, likewise pins 3, 18, and 33 (for the NO contact) and pins 2, 17, and 32 (for channel common). You may need to run separate wires from each connector pin and unite them at the device under test or in your cable.

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