1sna400272r1600 – d4/8,d2,p,sfd

Why Choose the TE Connectivity D4/8.D2.P.SFD 1SNA400272R1600 Fuse Terminal Block?

The TE Connectivity D4/8.D2.P.SFD 1SNA400272R1600 is a specialised two-level screw-clamp fuse terminal block from the ENTRELEC SNA range, designed for protected signal and control circuits in industrial electrical installations. It combines fused circuit functionality, multiple connection positions and DIN rail mounting in a compact 8 mm-wide terminal format.

The D4/8.D2.P.SFD provides 6 positions across 3 circuits and incorporates a lever disconnect mechanism. Its screw-terminal connections accept conductors up to a nominal 4 mm² / 12 AWG, with flexible conductor capacity from 0.5–4 mm² and rigid stranded conductor capacity from 0.5–6 mm².

Rated at 6.3 A and 300 V IEC, with the same 6.3 A / 300 V ratings under UL and CSA specifications, the terminal is suited to fused signal circuits requiring reliable protection and convenient servicing. Its grey Polyamide 6.6 housing provides IP20 protection and a UL94 V-0 flammability rating for professional industrial panel applications.

Key Advantages

• Integrated fuse terminal function for protected signal and control circuits.
• Two-level design maximises connection functionality within an 8 mm rail width.
• Provides 6 positions and 3 circuits in one compact terminal block.
• Lever disconnect mechanism supports circuit isolation and servicing.
• Rated at 6.3 A and 300 V IEC.
• Compatible with standard TH35-7.5 and TH35-15 DIN rails.

Key Features

• TE Connectivity ENTRELEC SNA modular terminal block.
• D4/8.D2.P.SFD configuration.
• Fuse block function.
• Screw-terminal connection technology.
• 6 positions.
• 5 poles.
• 3 circuits.
• 2 levels.
• Lever disconnect mechanism.
• 8 mm product spacing.
• 6.3 A rated current.
• 300 V rated voltage.
• 6 kV IEC impulse withstand voltage.
• IP20 protection.

Reliable Fused Connections for Signal and Control Circuits

The D4/8.D2.P.SFD combines terminal connection, fuse functionality and circuit disconnection within one compact DIN rail component. Its two-level, three-circuit architecture helps panel designers achieve greater wiring functionality without unnecessarily increasing terminal-strip width, making it particularly useful where enclosure space is limited.

Screw-clamp termination provides a familiar and serviceable connection method, while the 0.5 N·m tightening torque and 9.5 mm stripping length support consistent conductor installation. The integrated lever disconnect arrangement also allows circuits to be isolated conveniently during commissioning, testing and maintenance.

Typical Applications

• Industrial control and automation panels.
• Fused signal and control circuits.
• PLC input and output wiring.
• Instrumentation and process-control systems.
• Machine-building electrical cabinets.
• DIN rail circuit protection and isolation assemblies.