Overview

Sigma Si Hold off units are available with red or green actuators (BS 7273-1 recommends white with red button) and are mounted in a single gang, surface mounting enclosure. For flush mounting, the enclosure may be discarded, and the unit mounted to a standard UK single gang electrical back box.

The unit has a durable, shrouded push button to prevent accidental operation, and a simple two-wire connection to Sigma XT, Sigma XT+, Syncro XT+ or Sigma Si status units is required. Sigma Si Hold off units are fitted with normally open and normally closed contacts to allow operation with monitored and unmonitored systems.

Main Features

  • Shrouded push button to prevent inadvertent operation
  • Activation resistor included
  • Compatible with all Sigma XT and Sigma XT+ models
  • Robust steel surface mount enclosure
  • Flush mount collar available*

*part number M10FCLGT

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