1sna115504r1500 – ma2,5/5.sbn short blade switch

Why Choose the TE Connectivity 1SNA115504R1500 MA2.5/5.SNB Short-Blade Disconnect Terminal Block?

The TE Connectivity 1SNA115504R1500, also identified as the ENTRELEC MA2.5/5.SNB, is a compact 2.5 mm² screw-clamp disconnect terminal block with a short grey blade, designed for circuit isolation, testing and maintenance in industrial control panels. Part of the established ENTRELEC SNA series, it enables an individual circuit to be opened without removing the permanently connected conductors.

The MA2.5/5.SNB combines dependable screw-clamp conductor termination with an integrated blade disconnect mechanism. Its short pivoting blade provides a clear and convenient means of breaking the electrical path during commissioning, fault-finding or maintenance, while the compact 5 mm width supports high-density terminal assemblies where DIN rail space is limited.

Rated at 10 A and designed for flexible conductors up to 2.5 mm², the 1SNA115504R1500 provides a practical isolation point for industrial signal and control circuits. Its grey housing, IP20 protection and compatibility with G32, TH35-7.5 and TH35-15 DIN rails make it well suited to professional machinery and automation installations.

Key Advantages

• Integrated short-blade disconnect mechanism enables circuit isolation without removing conductors.
• Compact 5 mm width helps maximise available DIN rail space.
• 10 A current rating for industrial signal and control applications.
• Accepts flexible conductors up to 2.5 mm².
• Reliable screw-clamp termination provides secure and serviceable connections.
• Compatible with G32, TH35-7.5 and TH35-15 DIN rails.

Key Features

• TE Connectivity / ENTRELEC MA2.5/5.SNB disconnect terminal block.
• Part of the ENTRELEC SNA screw-clamp terminal block series.
• 2.5 mm² disconnect terminal.
• Grey body with short grey disconnect blade.
• Blade disconnect function for convenient circuit isolation.
• Screw-clamp connection technology.
• 10 A rated current.
• 5 mm product spacing for compact installations.
• 10 mm recommended wire stripping length.
• 0.4 N·m IEC tightening torque.
• IP20 protection rating.
• Compatible with common 32 mm and 35 mm DIN rail profiles.

Convenient Short-Blade Isolation for Industrial Circuits

Disconnect terminal blocks such as the TE Connectivity ENTRELEC MA2.5/5.SNB provide an accessible means of opening an individual electrical circuit without disturbing its permanent wiring. The short blade disconnect can be operated during commissioning, testing, maintenance and fault-finding, allowing technicians to isolate a circuit while leaving the connected conductors securely clamped in place.

The MA2.5/5.SNB combines this practical isolation function with a compact 5 mm-wide design and proven screw-clamp termination. Its DIN rail compatibility and 2.5 mm² conductor capacity make it particularly suitable for instrumentation, PLC, control and automation panels where numerous disconnect points may need to be installed within limited enclosure space.

Typical Applications

• Industrial electrical control panels.
• PLC and automation cabinets.
• Signal and instrumentation circuits.
• Circuit isolation for testing and commissioning.
• Machine-building and OEM equipment.
• Fault-finding and maintenance disconnect points.