Two analog outputs with hazardous-area clearance
The 6ES7332-5TB10-0AB0 is a 2-channel analog output module for the SIMATIC S7-300 family, delivering 4 to 20 mA or 0 to 20 mA signals per channel. It carries both FM (Class I, Division 2, Groups A–D T4; Class I, Zone 2, Group IIC T4) and ATEX (II 3 G Ex nA [ib Gb] IIC T4 Gc) approvals, meaning it is certified for installation in Zone 2 gas and Division 2 classified locations when the associated intrinsic-safety barriers are in place. Each channel is isolated from the others at 2500 V DC, and the module allows a permitted potential difference (UCM) of 60 V DC / 30 V AC between outputs in hazardous-area signal circuits. The open-circuit voltage Uo is limited to 19 V, and the maximum output power Po is 506 mW — figures that keep the loop energy below the ignition threshold for the gas groups listed on the nameplate.
End-of-life — sourcing the 6ES7332-5TB10-0AB0
There is no drop-in replacement that fits the S7-300 rail.
Loop drive and diagnostic capability
The module drives current outputs into a maximum load of 650 Ω per channel at 24 V DC supply. Conversion time is 40 ms per channel, and the cycle time for all channels is 5 ms max. A wire-break detection circuit triggers when the output current falls below 0.5 mA — useful for catching an open loop before the process drifts. Diagnostics are parameterizable: a group error LED (SF, red) and per-channel fault indicators (F, red) report wire-break, short-circuit, and overrange conditions. Substitute values can be configured per channel to hold a safe output state on fault.
Physical fit — S7-300 slot, 20-pin front connector
Rated supply is 24 V DC with reverse-polarity protection. Typical power dissipation is 3.5 W. The maximum ambient temperature is 60 °C, which sets the upper limit for cabinet internal temperature around the module row.