277V RCD testing

[ShortCircuited140]

Hi, I have a set of ABB F202 A-25/0.03 RCDs and have them wired to L7-15 outlets for 277V circuits that I use. What tool would you recommend to periodically test these to ensure they are still tripping on time? I have looked at the fluke 1662, but looking at the datasheet the test voltage for the RCD trip time measurements needs to be between 100-265VAC. Any recommendations would be appreciated.

I rather not have to open the enclosure to push the 'test' button on the RCD themselves, but perform this test on the outlets.

 

[Jraef]

RCDs only apply to IEC devices, which will never be used at more than 240V referenced to ground. So 277V would not be a valid voltage to use on any RCD. If someone told you that was OK, they led you astray. In addition, no RCD will be UL listed in any meaningful way, so seeing that you are in California, you can't do what you are doing, whatever it is...

 

[ShortCircuited140]

Hi Jraef, I meant RCCB, the datasheet does say that 277VAC is the max operating voltage under UL/CSA.

 

[zbang]

The datasheet at the end of the link says "Rated Operational Voltage: 230 V"..

Generally, the best test is the on-device button; I doubt that you'll find a tester rated for 277v.