D2-12TR Relay Output Module, 12 Point | AutomationDirect

The D2-12TR is a 12-point relay output module for AutomationDirect’s DirectLOGIC DL205 PLC series. The module features isolated Form A relay outputs capable of switching AC or DC loads up to 1.5 A for each point and 3 A for the common connection.

Details of the D2-12TR Relay Output Module:

• AutomationDirect makes the DirectLOGIC DL205 line of products. ​
• The model is D2-12TR.
• Function: A separate relay output module for DL205 PLC bases. ​
• 12 physical relay outputs per module. ​
• Type of output: Mechanical relays, Form A (SPST, contacts that are generally open). ​
• Common use: Switching field devices such contactors, solenoid valves, indication lamps, and small motors that need to be electrically isolated and work with both AC and DC. 

Electrical Ratings

• The nominal output voltage range is 6–24 VDC or 6–240 VAC. Third-party listings usually say that the operational range is 5–30 VDC and 5–240 VAC. ​
• The highest voltage is 30 VDC and 264 VAC. ​
• The frequency range for AC loads is 47 to 60 Hz. ​
• Minimum load: About 5 mA at 5 VDC (this makes sure that the contact is always wet and that the status is always shown). ​
• Maximum load current: 1.5 A per point (resistive load). ​& 3 A maximum for each common (the total of the six outputs on that common).
• Maximum inrush current: about 3 A for 10 ms per output and up to 10 A for 10 ms per common. ​
• When the contacts are open, the maximum leakage current is about 0.1 mA at 265 VAC.
• The DL205 backplane needs 5 VDC of base power, which is usually between 450 and 670 mA, depending on the source. For the exact number, see the current DL205 relay output module datasheet. ​

Common Structure and Channel

• 12 separate relay channels, each with a number from 0 to 11. ​
• There are two different commons (CA and CB), each with six outputs. ​
• 6 points per common (for example, outputs 0–5 on CA and 6–11 on CB; see user manual for exact mapping). ​
• Isolation: Relay connections create galvanic isolation between the PLC logic and the field wiring. The module does not feature jumper-selectable isolation groups beyond the two commons. ​

Mechanical Details:

• Mounting: Follows the DL205 user manual’s recommendations for where to put it in any conventional discrete output slot on DL205 bases (e.g., D2-09B, D2-06B, etc.). ​
• Type of terminal: It comes with a removable screw-type terminal block, which is typically called D2-8IOCON style for similar modules. ​
• Field wiring: Terminals can handle standard control wiring (up to about 16 AWG, which is what is suggested for DL205 bases). For torque and insulation standards, see the installation manual. ​
• Fusing: Module versions and distributors list built-in or replaceable fuses (like the D2-FUSE-4 accessory described in the DL205 literature) to keep relay outputs safe. ​
• Indicators: The LED lights on the front panel show whether each output point is ON or OFF. ​
• The average size and weight of a 12-point DL205 module is about 9 × 3 × 9 cm and 0.11 kg. ​

Key features:

• Backplane usage: Uses 16 output image points in the PLC’s I/O map, even though the hardware only has 12 outputs (4 points are left unused by design). ​
• Compatibility: Works with DirectLOGIC DL205 CPUs and bases; the DL205 User and Installation instructions (D2‑USER‑M, D2INST) explain how to use it. ​

Advantages:

1. Can switch both low-voltage DC and mains-rated AC loads directly, as long as they are within certain restrictions. ​
2. Relay isolation keeps field transients from damaging PLC electronics. ​
3. Good for when mixed AC/DC loads or higher voltages make solid-state DC or triac modules less useful.