Thermal Detection
5251B 5251B 5251BA
5251B Data Sheet Data Sheet (pdf)
5251B Installation Instructions Installation Instructions (pdf)
5251B Engineering Specs Engineering Specs

Fixed Temperature Thermal Detector


5251RB 5251RB 5251RBA
5251RB Data Sheet Data Sheet (pdf)
5251RB Installation Instructions Installation Instructions (pdf)
5251RB Engineering Specs Engineering Specs

Rate-of-Rise Thermal Detector


5251H 5251H 5251HA
5251H Data Sheet Data Sheet (pdf)
5251H Installation Instructions Installation Instructions (pdf)
5251H Engineering Specs Engineering Specs

High Temperature Thermal Detector



Discontinued Products
Discontinued Model Installation Instructions   Replacement Model
5251PA 5251P Brochure   5251BA
Fixed Temperature Thermal Detector
5251RPA 5251RP Brochure   5251RBA
Rate-of-Rise Thermal Detector
2551TA 2551T Brochure   2251TBA
Photoelectric Smoke Detector with Thermal
2551THRA 2551THR Brochure   2251TBA
Photoelectric Smoke Detector with Thermal
5551A 5551 Brochure   5251BA
Fixed Temperature Thermal Detector
5551BA 5551B Brochure   5251BA
Fixed Temperature Thermal Detector
5551RA 5551R Brochure   5251RBA
Rate-of-Rise Thermal Detector
Protectowire Linear Heat detector      
Protectowire Linear Heat Detector is a proprietary cable that detects heat conditions anywhere along its length.