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S4 Self Test Detectors

Gent S4T-780-S Self-Test Heat Sensor + Sounder

S4T-780-S — Hero
Operating voltage
35V - 48V
IP rating
IP21C
Enclosure
Terluran GP-35 (ABS) for outer housing
Ambient operating temperature
-10 °C to +50 °C
Sounder current
2 mA average and 4.5 mA maximum in Turbo mode mA
Sounder approval (EN54)
EN54-3: 2001 + A1: 2002 + A2: 2006 / EN54-3: 2014 + A1: 2019
Heat approval (EN54)
EN54-5: 2017 + A1: 2018

Required to operate

Needed to install, power or certify this product.

S4-700
Base - Common for all S-Quad Sensors

Base - Common for all S-Quad Sensors

Mounting base common to all S-Quad Self-Test sensors

£5.68
ex VAT
£6.82 inc VAT
Sold separately

Overview

What it is and how it fits the system.

The Gent S4T-780-S is an S4 SELF-TEST Heat Sensor Sounder, a loop-powered device in the S-Quad Self-Test (S4T) series combining a heat sensor with an integrated sounder. It delivers heat detection and audible alarm output from a single self-test-capable loop device.

Technical overview

The S4T-780-S is a Gent by Honeywell S4 SELF-TEST Heat Sensor Sounder, a loop-powered S-Quad Self-Test series device combining a heat sensor with an integrated sounder. It delivers heat detection and audible alarm output from a single self-test-capable loop device, operating on 35V–48V with IP21C enclosure protection. The device features Terluran GP-35 (ABS) outer housing in white (RAL 9010) or black (RAL 9005) finishes.

It operates in ambient temperatures from -10°C to +50°C and stores between -20°C and +65°C, with 95% non-condensing relative humidity between +5°C and +45°C. The sounder draws 2 mA average and up to 4.5 mA maximum in Turbo mode, with Bluetooth range of 10m. Approvals include EN54-3: 2001 + A1: 2002 + A2: 2006 / EN54-3: 2014 + A1: 2019 for sounder, EN54-5: 2017 + A1: 2018 for heat detection, and LPCB, CE & UKCA certification. Compatible with S4-700 base, and supports optional S4-705 covers, S4-FLUSH kit, and 13449-01 remote LED.

Specifications

Full technical data for this part.

DescriptionS4 SELF-TEST Heat Sensor Sounder
Operating voltage35V - 48V
IP ratingIP21C
EnclosureTerluran GP-35 (ABS) for outer housing
ColourWhite : RAL 9010 Black : RAL 9005
Storage Temperature-20 °C to +65 °C
Ambient operating temperature-10 °C to +50 °C
Relative Humidity95 % non-condensing (+5 °C to +45 °C) %
Bluetooth range10m
Sounder current2 mA average and 4.5 mA maximum in Turbo mode mA
Sounder approval (EN54)EN54-3: 2001 + A1: 2002 + A2: 2006 / EN54-3: 2014 + A1: 2019
Heat approval (EN54)EN54-5: 2017 + A1: 2018
ApprovalsLPCB approval, CE & UKCA

Specifications sourced from manufacturer documentation.

Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know

Enhancements (optional)

Optional additions — this product works without them.

S4-705
IP21 base covers (pack 5)

IP21 base covers (pack 5)

Optional IP21C base cover plate

£11.37
ex VAT
£13.64 inc VAT
Sold separately
S4-FLUSH
S-Quad Semi-Flush Mounting Kit

S-Quad Semi-Flush Mounting Kit

Semi-flush mounting kit for S-Quad Self-Test device

£28.23
ex VAT
£33.88 inc VAT
Sold separately
13449-01
Remote LED (for use with common base S4-700)

Remote LED (for use with common base S4-700)

External repeat LED driven by device I/O

£13.46
ex VAT
£16.15 inc VAT
Sold separately

Compare variants

Alternatives in the same range — pick the variant that fits your install.