Description

3300/20-01-01-02-01-00 Input-Output Modules

3500 displays with hazardous certification options (01&-02) have been certified to Division 2/Zone 2 standards (both ATEX/IECEx and North American zones and subzones.) The Division 2/Zone 2 standards specify increased spacing requirements at higher voltages, and the relays do not meet these spacing requirements. For this reason, 3500/32M relays with hazardous area certification options (including country-specific hazardous area certification options) have historically been limited to lower voltages than relays with non-hazardous certification options. The use of higher voltages would be a violation of the Hazardous Area Certification associated with the Hazardous Area Certification option.

If the 3500 is part of a Functional Safety (SIL) system, the Functional Safety Certificate requires voltage limitation. Higher voltages are not permitted for functional safety (SIL) systems.

It is possible to connect field wiring to the relay, exposing the conductors to potential human contact. At high voltages, this can create a shock hazard. The user should only use the relay at the specified voltage. Appropriate safety precautions must be taken against the shock hazard.Appropriate safety precautions must be taken for shock hazards.