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SM99 and SR99: single pole spring clamp terminal blocks offering safety and convenience

A flexible circuit board connection solution for most industrial and building automation applications, METZ CONNECT has developed the SM99 and SR99 a safe and simple single pole spring clamp terminal block specifically aimed at compact and low profile devices, and which meet today’s Safety, Reliability, & Convenience requirements perfectly.

In the race to stay ahead of the competition, demand for smaller devices as well as additional functionality continues to grow. Within the Industrial and Building Automation market, new product design trends focus on integration, migration, miniaturisation, and of course, reliability. As a result, the available space on the PC board for components becomes more and more limited. METZ CONNECT provides ideal solutions for innovative PC board connection to meet these requirements.

As a single pole connector solution and also its compact size, SM/SR99 allows design engineers to take a flexible approach to connector placement on a PCB with the very limited space that is often available to them. At just 6.6mm in height and 5.8mm wide SM/SR99 carries a very small PCB footprint and can be placed on the circuit board in any number of orientations.

For such a compact connector, the SM/SR99 is feature rich. Accepting solid core and stranded cables 0.2sqmm – 1.5sqmm and rated up to 9A, SM/SR99 features a unique finger operated actuator that not only allows for quick and easy wiring but also enables the operator to make multiple connect and disconnect cycles should they require. Once the cable is inserted, the operator will find an inspection window on the top side of the housing and a quick visual check can be made. Next to the inspection window the operator will then find a continuity test point to ensure that a quick, safe, and reliable connection has been made. SM99/SR99, is also offered with different colour actuators for additional colour coding benefits. The single pole spring clamp terminal blocks in SMT and THR versions are available in bulk packaging or on tape & reel.

Push-In technology

Push-In – contact directly and in an easy way without tools. Special spring clamps enable a simple plug-in in assure with a high contact quality. Easy and direct insertion of solid and stranded conductors featuring ferrules and a large finger push-button for wire release.

Colour options

METZ CONNECT also offers the single pole terminal block in seven different colors for the finger latch for your individual coding on the pc board.

Benefits Overview

  • Connection convenience through push-in technology
  • No additional component necessary (e.g. pin header or female connector) => cost benefits
  • Single spring clamp terminal block in SMT and THR designs
  • Reflow-capable acc. To JEDEC 20 MSL 1
  • Automation-compliant packaging (Tape & Reel)
  • Connection direction 90°
  • Compact design (SM99: 5.8 x 6.6 x 14.5 mm (w x h x d))
  • Finger push-button
  • Wire connection indicator
  • Test plug socket
  • Single-wire cable range 0.2-1.5 sqmm
  • Nominal current 9 A
  • Colour variants for finger latch

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