Intrinsic safety relies on the equipment supplies being of low voltage and power and SUITABLE for electronic devices. The operating current of the circuitry should be low enough not to be affected by series resistance, which may be required to limit energy. The circuitry should contain low values of inductance and capacitance. Supply values exceeding 30V and 1.3W are possible but will be increasingly more difficult to certify. A detailed ANALYSIS of the circuit design will LIKELY be necessary, possibly revealing a NEED to modify the circuit design in order to obtain certification. The strength and shape of the enclosure is not as IMPORTANT as full control and knowledge of the circuit design.

Intrinsic safety relies on the equipment supplies being of low voltage and power and suitable for electronic devices. The operating current of the circuitry should be low enough not to be affected by series resistance, which may be required to limit energy. The circuitry should contain low values of inductance and capacitance. Supply values exceeding 30V and 1.3W are possible but will be increasingly more difficult to certify. A detailed analysis of the circuit design will likely be necessary, possibly revealing a need to modify the circuit design in order to obtain certification. The strength and shape of the enclosure is not as important as full control and knowledge of the circuit design.