$ 0.96
Test-disconnect terminal block with pivoting lever for safe circuit isolation. Supports 500V/24A, 2.5 mm² rated cross-section, and TS 35 DIN rail mounting.
The Weidmüller WTR 2.5 (Part No. 1855610000) is a high-reliability test-disconnect terminal block designed for industrial control and automation environments. Featuring a pivoting disconnect lever, it allows for safe circuit isolation and testing without removing conductors. The unit utilizes a robust screw connection system (Clamping Yoke) accommodating wire cross-sections up to 4 mm² (solid) and 2.5 mm² (rated). Constructed from Wemid material with a UL 94 V-0 flammability rating, it ensures durability in harsh conditions ranging from -50°C to 120°C. This terminal block is optimized for TS 35 DIN rail mounting and supports diverse voltage/current ratings up to 500V/24A (IEC) and 600V/20A (UL/CSA).
| Technical Parameter | Specification |
|---|---|
| Product Type | Test-disconnect terminal |
| Order No. | 1855610000 |
| Type | WTR 2.5 |
| Width (inches) | 0.201 inch |
| Height (inches) | 2.362 inch |
| Depth (inches) | 1.89 inch |
| Depth including DIN rail | 49 mm |
| Storage temperature | -25 °C...55 °C |
| Ambient temperature | -50 °C…75 °C |
| Continuous operating temp., min. | -50 °C |
| Continuous operating temp., max. | 120 °C |
| Material | Wemid |
| Colour | Dark beige |
| UL 94 flammability rating | V-0 |
| Rated cross-section | 2.5 mm² |
| Rated voltage | 500 V |
| Rated current | 24 A |
| Current at maximum wires | 24 A |
| Rated impulse withstand voltage | 6 kV |
| Pollution severity | 3 |
| Volume resistance | 1.33 mΩ |
| Surge voltage category | III |
| Insulating material group | I |
| Connection type | Screw connection |
| Connection direction | on side |
| Number of connections | 2 |
| Stripping length | 10 mm |
| Tightening torque, min. | 0.4 Nm |
| Tightening torque, max. | 0.8 Nm |
| Clamping range, min. | 0.05 mm² |
| Clamping range, max. | 4 mm² |
| Wire connection cross section AWG, min. | AWG 30 |
| Wire connection cross section AWG, max. | AWG 12 |
| Wire connection cross section, solid, min. | 0.5 mm² |
| Wire connection cross section, solid, max. | 4 mm² |
| Wire connection cross section, stranded, min. | 1.5 mm² |
| Wire connection cross section, stranded, max. | 4 mm² |
| Wire connection cross section, finely stranded, min. | 0.5 mm² |
| Wire connection cross section, finely stranded, max. | 4 mm² |
| Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/1, min. | 0.5 mm² |
| Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/1, max. | 2.5 mm² |
| Mounting rail | TS 35 |
| Open sides | right |
| Integral test socket | No |
| Cross-disconnect | without |
| Slitting | Pivoting |
| Certificate No. (ATEX) | DEMKO14ATEX1389U |
| Certificate No. (IECEX) | IECExUL14.0097U |
| Certificate No. (UR) | E60693 |
| Width | 5.1 mm |
| Height | 60 mm |
| Depth | 48 mm |
| Blade size | 0.6 x 3.5 mm |
| Net weight | 8.01 g |
Enables the safe insertion of measurement instruments into 4-20mA current loops without physically disconnecting field wiring.
Allows technicians to measure process signals or calibrate instruments without disrupting the permanent wiring or causing process downtime.
Provides a reliable means to isolate specific segments of control logic or field devices during maintenance and troubleshooting.
Facilitates rapid identification of short circuits or ground faults by selectively disconnecting circuit branches via the pivoting lever.
Used in marshaling cabinets to organize and test incoming field signals before they reach the I/O cards of a PLC or DCS.
Simplifies the commissioning process by offering accessible test points for voltage verification and simulation without un-wiring connections.
