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AC Contactor Selection: AC-1 and AC-3 Ratings a...

AC contactor selection basics Two markings on a contactor decide the order: the utilization category with its rated current (AC-1 or AC-3), and the coil voltage. AC-1 covers resistive loads...

MCB Trip Curves Explained: What B, C and D Rati...

MCB trip curves explained The letter on a miniature circuit breaker (C32, D25 and similar) sets how much overcurrent trips the breaker instantly: a B curve trips at 3 to...

Delta VFD-EL Drive Model Number Guide: Power, V...

Delta VFD-EL model numbers, decoded A Delta VFD-EL part number such as VFD015EL21A reads as: 1.5 kW, 230 V single-phase-capable input, EL series. The digits after VFD give the power...

Fanuc A90L-0001 Cooling Fan Cross-Reference: Sa...

FANUC A90L-0001 fan cross-reference The label on a FANUC cooling fan carries a FANUC part number such as A90L-0001-0581, while the fan itself was made by Sanyo Denki or NMB...

Omron E5 Temperature Controller Family Guide: E...

Omron E5 temperature controller family guide The E5 family spans dial thermostats to programmable controllers, and several generations share the same 48×48 mm panel cutout, which is why buyers often...

Omron H3Y Timer Relay Delay Code Chart: H3Y-2-C...

Omron H3Y delay code chart The ordering code printed on an Omron H3Y timer case (H3Y3833F and similar) fixes the delay range, series and coil. The chart below maps the...