1sna105077r2200 – ma2.5/5 black

Why Choose the TE Connectivity MA2.5/5 Black Feed-Through Terminal Block?

The TE Connectivity MA2.5/5, manufacturer part number 1SNA105077R2200, is a compact black screw-clamp feed-through terminal block from the Entrelec SNA series. Designed for signal and industrial control wiring, it provides a reliable method of connecting incoming and outgoing conductors within DIN rail-mounted terminal assemblies.

With a nominal conductor size of 2.5 mm² and a compact 5 mm pitch, the MA2.5/5 helps maximise wiring density inside electrical cabinets. It provides two positions, one circuit and one level, while its proven screw-terminal connection system securely clamps conductors for dependable electrical and mechanical performance.

The MA2.5/5 is rated at 24 A and 1000 V under IEC specifications and supports flexible conductors from 0.22–2.5 mm² and rigid stranded conductors from 0.2–4 mm². Its black polyamide 6.6 housing, IP20 protection and compatibility with G32, TH35-7.5 and TH35-15 DIN rails make it a versatile terminal for industrial automation and control panel applications.

Key Advantages

• Compact 2.5 mm² feed-through terminal block for industrial signal and control wiring.
• 24 A, 1000 V IEC rating for dependable electrical connections.
• 5 mm pitch supports high-density DIN rail terminal assemblies.
• Proven screw-clamp termination provides secure conductor retention.
• Black housing enables circuit identification within colour-coded terminal arrangements.
• Compatible with G32, TH35-7.5 and TH35-15 DIN rails.

Key Features

• TE Connectivity / Entrelec SNA series.
• MA2.5/5 feed-through terminal block.
• Black polyamide 6.6 housing.
• 2.5 mm² nominal wire size.
• 5 mm product spacing.
• 2 positions, 2 poles, 1 circuit and 1 level.
• 24 A IEC rated current.
• 1000 V IEC rated voltage.
• 30 A UL rated current.
• 600 V maximum UL / CSA operating voltage.
• IP20 protection rating.
• UL 94V-0 flammability rating.

Reliable Feed-Through Connections for Industrial Control Wiring

Feed-through terminal blocks provide a straightforward method of joining conductors while maintaining an organised and serviceable DIN rail wiring system. The TE Connectivity MA2.5/5 uses screw-terminal technology to establish a secure connection between conductors, making it well suited to control, signal and automation circuits where reliable long-term connectivity is required.

Its narrow 5 mm width helps conserve valuable DIN rail space, while compatibility with both symmetrical TH35 rails and G32 rail systems provides installation flexibility. The black housing can also be incorporated into colour-coded terminal arrangements to distinguish particular circuits or wiring functions within complex industrial panels.

Typical Applications

• Industrial control panels and electrical cabinets.
• PLC and automation system wiring.
• Signal and instrumentation circuits.
• Switchgear and electrical distribution assemblies.
• Machine control and OEM equipment.
• Colour-coded DIN rail terminal assemblies.