Linear Heat Detector Junction Box

Junction Boxes

The Protectowire portion of every initiating circuit shall terminate at each end in an approved zone box, end-of-line zone box, or other approved junction box provided as part of the system. The Protectowire Company offers a complete range of end-of-line and zone boxes for use with our systems.

Choose an Accessory Category Tab Below

Compatible with PHSC Digital Linear Heat Detectors = Compatible With PHSC and PLR “Digital” Linear Heat Detectors
CTI-Icon
= Compatible With CTI “Confirmed Temperature Initiation” Linear Heat Detectors
Fiber-Optic-Icon
= Compatible With Fiber Optic Linear Heat Detectors

Commercial Zone Junction Boxes and End-of-Line Boxes

ZB--4-QC

ZB-4-QC-MP – Non-Metallic Moisture Proof Junction Box w/Compression Terminals.
Dimensions: H 4″ x W 4″ x D 2″
Click here for Class “B” detail.
Click here for Class “A” detail.
Click here to view datasheet.
Compatible with all controls.
Note:
 Use as End-of-Line Box for SRP-4×4 to mount 8.2K resistors supplied with panel. 

Compatible with PHSC Digital Linear Heat Detectors

ZB--4-QC

ELR-4-QC-MP (4.7K ELR)Non-Metallic Moisture Proof End-of-Line Box w/Compression Terminals.
Dimensions: H 4″ x W 4″ x D 2″
Click here for detail.
Compatible with FS2000 and 2600HD ZM-3224 modules (Options B & BB).

Compatible with PHSC Digital Linear Heat Detectors

Commercial Junction and End of Line Boxes for CTI Series Linear Heat Detectors

ZB-5-QC-Version-2-120w

ZB-5-QC (10K ELR)Non-Metallic Moisture Proof Junction Box w/Compression Terminals and integrated test jack.
Dimensions: H 4″ x W 4″ x D 2″
Note: Also used as End-of-Line box for mounting detection circuit resistors supplied with interface module.
Compatible with CTM-530 Interface Module and CTI Series Linear Heat Detectors.

Click here for Datasheet

Compatible With CTI Confirmed Temperature Intitiation Linear Heat Detectors

Heavy Duty Junction and End of Line Boxes

ZB-HD-4-QC

ZB-HD-4-QC (N4X) – Fiberglass NEMA-4X Junction Box w/Compression Terminals
Dimensions: H 6″ x W 6″ x D 4″
Compatible with all controls.
Click here to view datasheet.

Compatible with PHSC Digital Linear Heat Detectors

ZB-HD-4-QC

ELR-HD-4-QC (N4X) (4.7k ELR) Fiberglass NEMA-4X End-of-Line Box w/Test Switch and Compression Terminals
Dimensions: H 6″ x W 6″ x D 4″
Compatible with FS2000 and 2600HD ZM-3224 modules (Options B & BB).

Click here to view datasheet.

Compatible with PHSC Digital Linear Heat Detectors

ZB-HD-4-QC

ELR-HD-1A-QC (N4X) (8.2k ELR) Fiberglass NEMA-4X End-of-Line Box w/Test Switch and Compression Terminals
Dimensions: H 6″ x W 6″ x D 4″
Compatible with SRP-4×4 and 2600HD ZM-2 modules (Options A & AA).
Click here to view datasheet.

Compatible with PHSC Digital Linear Heat Detectors

Heavy Duty Junction and End of Line Boxes for CTI Series Linear Heat Detectors

ZB-HD-5-QC-Version-1-120w

ZB-HD-5-QC Non-Metallic NEMA-4X (IP66) Type JIC Enclosure w/Compression Terminals and integrated test jack.
Dimensions: H 6″ x W 6″ x D 4″
Note: Also used as End-of-Line box for mounting detection circuit resistors supplied with interface module.
Compatible with CTM-530 Interface Module and CTI Series Linear Heat Detectors.

Click here for Datasheet


Compatible With CTI Confirmed Temperature Intitiation Linear Heat Detectors

Sealed Strain Relief

SR-502 Junction Box Sealed Strain Relief Connector
Used when Protectowire Linear Heat Detector penetrates junction and end-line boxes. Water and Oil resistant.
SR-502 Material: Malleable iron/zinc plated, rubber seal and O-ring. 1/2″ NPT Thread
Click here for SR-502 detail.

SR-502N-120w

SR-502N Junction Box Sealed Strain Relief Connector
Used when Protectowire Linear Heat Detector penetrates junction and end-line boxes. Water and Oil resistant.
SR-502-N Material: 6/6 Nylon and Buna-N Seal. 3/8″ NPT Thread
Click Here for SR-502-N Datasheet_DS-9239