Dinkle DPT DIN rail disconnect terminal blocks
Dinkle DPT DIN rail disconnect terminal blocks are designed to provide efficient, safe disconnect and testing of current transformer (CT) and voltage transformer (VT) circuits.
These DPT DIN rail series terminal blocks offer easier access in CT circuits, DIN rail mounting with no tools required and push-in design to help ensure secure wiring connection while reducing time and tools required for termination.
The DPTD6 model block also provides direct-testing technology, enabling a user to test the circuit current without undoing any wired connections. To perform direct-test for a single- or three-phase circuit, the user switches a lever on the terminal block to disconnect a de-energised circuit. The user then places a current-measuring device across the block at its test points using either 4 mm test probes or securely fastened 2.3 mm test plugs. The DPTL6 model version is similar to the DPTD6 but without a disconnect lever for testing.
Both blocks are UL rated up to 30 A at 600 VAC. The blocks are DIN rail mountable and measure 8 mm in width by 103.2 mm in height by 50–57.5 mm in depth (depending on DIN rail depth), allowing for easier installation and space saving compared with traditional barrier-type terminal blocks.
These push-in style blocks accommodate wire sizes from AWG20 to AWG8, and also feature plug-in slots for bridges (jumpers), providing continuity between any combination of blocks on the same DIN rail. They are touch-safe — back of hand and finger protection — and operate at temperatures from -40 to 120°C.
Users can employ these DPT series blocks to safely disconnect secondary circuits between measuring instruments and safety equipment in CT shorting and other applications. A safe disconnect can be achieved by placing the block in front of the measurement instrument.
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