1sna400270r2000 – d4/8.d2.p.sf

Why Choose the TE Connectivity D4/8.D2.P.SF Double-Level Fuse Terminal Block?

The TE Connectivity / ENTRELEC D4/8.D2.P.SF, manufacturer part number 1SNA400270R2000, is a compact double-level fuse DIN rail terminal block designed for protected signal and control circuits in industrial automation, machinery and electrical panels. Part of the established ENTRELEC SNA series, it combines fuse functionality with screw-clamp conductor termination in an 8 mm-wide terminal assembly.

The D4/8.D2.P.SF provides two connection levels, three circuits and six connection positions, allowing multiple functions to be incorporated into a compact DIN rail footprint. Its lever-operated disconnect arrangement provides convenient access to the fused circuit, making the terminal suitable for applications where circuit protection, isolation and organised high-density wiring are required.

Rated at 6.3 A and 300 V under IEC, UL and CSA specifications, the 1SNA400270R2000 also provides an IEC impulse withstand voltage of 6,000 V. The terminal accepts flexible conductors from 0.5–4 mm² and rigid stranded conductors from 0.5–6 mm², while its polyamide 6.6 housing, IP20 protection and wide operating temperature range support dependable industrial installation.

Key Advantages

• Combines fuse protection and terminal connection within a compact DIN rail component.
• Double-level construction increases wiring density within control cabinets.
• Provides three circuits and six connection positions.
• 6.3 A rated current under IEC, UL and CSA specifications.
• 300 V rated voltage for industrial signal and control applications.
• Lever-operated disconnect mechanism provides convenient circuit isolation.
• Compact 8 mm width helps conserve valuable DIN rail space.
• Compatible with standard TH 35-7.5 and TH 35-15 DIN rails.

Key Features

• TE Connectivity / ENTRELEC D4/8.D2.P.SF fuse terminal block.
• Fuse block function for protected signal circuits.
• Two-level configuration.
• Three circuits.
• Six connection positions.
• Five poles.
• 6.3 A IEC, UL and CSA rated current.
• 300 V IEC, UL and CSA voltage rating.
• 6,000 V IEC impulse withstand voltage.
• Lever disconnect mechanism.
• Screw-terminal conductor connection.
• 4 mm² / 12 AWG nominal wire size.
• IP20 protection.
• Grey polyamide 6.6 housing with UL 94 V-0 flammability classification.

Compact Fuse Protection for High-Density Control Wiring

Fuse terminal blocks combine circuit protection and conductor termination within the same DIN rail assembly, reducing the need for separate fuse holders and helping panel builders create organised control systems. The D4/8.D2.P.SF extends this concept with a two-level arrangement that accommodates three circuits and six connection positions within an 8 mm-wide footprint.

The lever-operated disconnect function provides convenient circuit separation for maintenance and fault finding, while screw-terminal connections provide secure and serviceable conductor termination. With its 6.3 A and 300 V ratings, IP20 protection and wide operating temperature range, the D4/8.D2.P.SF is particularly suited to protected signal circuits in industrial automation and machinery applications.

Typical Applications

• Fused industrial signal circuits.
• PLC input and output circuit protection.
• Industrial automation and control panels.
• Machine building and OEM electrical systems.
• Instrumentation and process control circuits.
• Factory automation and production machinery.
• High-density protected control wiring.
• Circuits requiring convenient fuse isolation and maintenance access.