Weidmuller WTL 4/STB 1754970000 Terminal Block

The Weidmuller WTL 4/STB 1754970000 is a narrow‑form measuring‑transformer disconnect terminal built for 4 mm² wiring, 32 A nominal rating and 400 V working voltage. Designed for TS 35 DIN‑rail snap‑in installation, this unit features integrated test sockets to facilitate probe access for on‑site meter calibration and circuit troubleshooting tasks.

Its dark‑beige Wemid housing meets UL94‑V0 flammability specifications. M2.5 screw terminals accept 0.13‑4 mm² stranded and 0.13‑6 mm² solid conductors (AWG 26‑10), with tightening torque set between 0.4‑0.7 Nm. It achieves 1 mΩ contact resistance and can withstand impulse surges up to 6 kV under polluted‑environment operating conditions.

Each package holds 50 individual terminals and requires matching end‑cover fittings. Backed by UR and CSA certification alongside RoHS compliance, this compact terminal fits densely populated metering cabinets, delivering safe isolating breaks for low‑to‑medium‑current instrument‑transformer measurement loops.