Schneider Electric NSYTRV42 Linergy TR 4 mm2 Terminal

NSYTRV42: Linergy TR 4 mm² feed-through terminal block

The NSYTRV42 is a Schneider Electric Linergy TR terminal block of the TRV screw-terminal series, supplied in a set of 50 pieces and described as a feed-through type with clip-on rail mounting. The colour is grey and the nominal cross section is 4 mm². Seven Star LLC supplies it from Muscat as an independent supplier to panel builders, system integrators and maintenance stores in Oman and the GCC.

At 4 mm² nominal, this unit steps up to a 32 A IEC current rating and a 6.2 mm width. It is the usual choice for control power and motor-auxiliary circuits where 2.5 mm² is too tight but a power terminal is excessive. The reading of the reference here follows the datasheet title only: TRV is the short name for the screw-terminal family, and the digits in the code track the cross section in the title. The datasheet does not publish a decoding table.

How the NSYTRV42 connects conductors

Each block has two screw terminals, one upstream and one downstream, entering from the side; the screws are M3 size. A conductor is stripped to 9 mm, inserted into the clamp and tightened with a screwdriver to 0.6–0.8 N.m. The same tool releases the conductor, so no special extraction device is needed. Accepted conductors are 0.14–6 mm² solid with cable end; 0.2–6 mm² solid without; 0.2–4 mm² flexible with cable end; 0.2–6 mm² flexible without cable end.

The two terminal points are joined internally by a copper-alloy path, so the block passes the signal or current straight through; the datasheet also lists commoning-link material, which refers to the optional bridging between neighbouring blocks.

Selection checklist for the NSYTRV42

• Conductor size: confirm the cable fits 0.14–6 mm² solid with cable end; 0.2–6 mm² solid without / 0.2–4 mm² flexible with cable end.
• Current and voltage: check against 32 A (IEC), 30 A UL/CSA at 1000 V (IEC 60947-7-1), 600 V UL/CSA.
• Pack size: the reference is sold as a set of 50, so count pieces in sets.
• Width: 6.2 mm per block; measure the available rail length.
• Accessories: add end clamps, covers and bridges if the layout needs them.
• Approvals: verify that the project approval appears on the datasheet.

Technical specifications of the NSYTRV42

Electrical and material data for the NSYTRV42

Rated operational voltage is 1000 V (IEC 60947-7-1), 600 V UL/CSA. Rated current is 32 A (IEC), 30 A UL/CSA. The insulating case is polyamide 6/6 with a UL 94 flame retardance of V0 at 0.8 mm, a dielectric strength of 1000 V per IEC 60243-1 and a comparative tracking index of 500 CTI. The datasheet gives an operating range of -40 to 130 °C, a wide window that suits warm electrical rooms. Net weight is 9.4 g per piece.

Approvals shown on the datasheet are VDE, GL, CSA, DNV. Always check that the approval you need on a project is listed for this exact reference before specifying it on a drawing.

Installation and maintenance of the NSYTRV42

Clip the block onto the rail, keep the screws backed off until the conductor is in place, then tighten to 0.6–0.8 N.m. Re-tighten once after the first thermal cycles because stranded copper settles under the clamp. Where a flexible conductor is used without a cable end the datasheet allows it, but ferrules give a neater clamp and are good practice for vibrating panels.

In Gulf installations the typical failure is a loose screw on a heavily cycled circuit, not a defective block. Include the terminal rows in thermographic surveys, and keep spare sets of this unit in stock so a damaged block can be replaced without waiting for a shipment.

Compatibility and related parts for the NSYTRV42

The datasheet lists compatibility with Spacial enclosures and with the ranges PrismaSeT G, PrismaSeT P, PrismaSet HD, PrismaSeT Pack 250, PanelSeT, Mureva, PrismaSeT XS and TeSys. The matching accessories of the Linergy TR family include end clamps such as NSYTRAABV35, end covers such as NSYTRAC162 and NSYTRAC22, and plug-in bridges such as NSYTRAL410 and NSYTRAL420; check each accessory datasheet against the block width and cross section before ordering.

Siblings of this unit in the same screw-terminal series are the 2.5 mm² block, the 4 mm² earth and fused versions, the 6 mm² block and the 50 mm² block. They look alike on a rail, so colour, width and printed marking should be checked when mixing sizes.

Information to send with an RFQ for the NSYTRV42

• Exact reference NSYTRV42 and the quantity in sets of 50.
• Conductor size and type (solid, flexible, with ferrule).
• Voltage and current of the circuit and the approvals required.
• Accessories needed: end clamps, end covers, bridges.
• Delivery location and project schedule.

Documents and quotation

The manufacturer datasheet for the NSYTRV42 is attached on this page and carries the specification summarised above. Check the revision date against your project.

Send us the reference NSYTRV42, quantity and delivery location and Seven Star LLC will reply to your request. We are an independent supplier based in Muscat.