Supported Applications
The Omega DRTB-2 Series consists of DIN rail mountable, fully enclosed thermocouple terminal blocks designed for secure and maintenance-free connections. These audit-capable devices feature built-in miniature female thermocouple connectors (Type SMP) to facilitate easy auditing and troubleshooting in industrial control environments.
Operating Conditions & Performance
The DRTB-2 Series operates within an ambient temperature range of -40 to 85°C (-40 to 185°F). The housing is constructed from gray polyamide 6.6 thermoplastic resin and carries a UL 94 V0 rating for 85°C. Mechanical performance includes excellent vibration resistance, corrosion-resistant connections, and an extreme performance test capability of 20 lb force.
Calibration Support
The series supports the following thermocouple calibrations with specific alloy codes:
• Type K: CHROMEGA® / ALOMEGA®
• Type T: Copper / Constantan
• Type J: Iron / Constantan
• Type E: CHROMEGA® / Constantan
• Type N: OMEGA-P® / OMEGA-N®
• Type U: Copper / Copper
• Type R/S: Copper / RNX/SNX
Configuration Options
The DRTB-2 Series is available in single unit, 10-pack (e.g., -10PK), and 50-pack (-50PK) configurations. The narrow profile measures 10.7 mm (0.422") wide with an overall length/height of 52.8 mm (2.08"]/42.3 mm (1.666"). Electrical connections utilize screw-type terminals.
Mounting and Accessories
The blocks are designed for use with standard 35 mm DIN rails or 32 mm G-type rails. Available accessories include:
• DIN Rails: DRTB-RAIL-3575 (35 x 7.5 mm, 2 m), DRTB-RAIL-3575-1 (1 m), DRTB-RAIL-3515 (35 x 15 mm, 2 m), and DRTB-RAIL-3515-1 (1 m).
• Markers: XBMZB10 white blank marker strip.
• Meters: HH806AU thermocouple dual input meter with USB and DC power jack.
• Cables: REC(*)1-10 retractable extension cable, 0.3 m (expands to 1.5 m); REC(*)4-10 retractable extension cable, 1.2 m (expands to 6.1 m).
Key Product Differences
Variants are distinguished by thermocouple calibration type and packaging quantity. The model number follows the format DRTB--2, where CALIBRATION corresponds to K, J, T, E, N, R/S, or U. Packaging options include single units (e.g., DRTB-K-2), 10-packs (DRTB-K-2-10PK), and 50-packs (DRTB-K-2-50PK). The series is UL Component Recognized and RoHS compliant, holding US Patent No. 8,545,277.
• UL Component Recognized
• Type K, J, T, E, N, R/S and U Calibrations
• Screw Type Terminal for Secure and Maintenance Free Connections
• Built-In Miniature Female Thermocouple Connector for Auditing and Troubleshooting
| Additional Features 1 | DIN Rail Mountable |
| Amperage, Max | 0 A |
| Height | 42.3 mm |
| Insulation Strip Length | 8 mm |
| Length | 52.8 mm |
| Operating Temperature, Max | 85 °C |
| Operating Temperature, Min | -40 °C |
| Series ID | DRTB-2 |
| Tightening Torque | 0.4 ± 10% Nm |
| Voltage Rating | N/A |
| Width | 10.7 mm |
| Wire Gauge | 24 to 16 AWG |