Mircom MIR-603 135F Fixed Heat Detector

The Mircom MIR-603 heat detector is a one-circuit fixed-temperature heat detector rated at 135 F (57 C) for conventional fire alarm applications where unusually violent temperature fluctuations may occur. It uses a fusible alloy heat element for dependable fixed-temperature operation, provides visible activation when the external heat collector drops away, and has a low-profile white finish that sits only 1-3/8 inches from the ceiling with junction box mounting. Key Specifications: Type: Conventional one-circuit fixed-temperature heat detector Core Function(s): Responds at 135 F (57 C) using a fusible alloy element for fixed-temperature heat detection Temperature Rating: 135 F (57 C) Circuit Rating: One circuit Electrical Ratings: 6-125 VAC at 3.0 A; 6-28 VDC at 1.0 A; 125 VDC at 0.3 A; 250 VDC at 0.1 A Spacing Allowance: 25 x 25 ft UL, 20 x 20 ft FM Indicators/UI: Visual indication by drop-away external heat collector after operation Mounting: Includes reversible mounting plate for 4 inch junction box, 3-1/4 inch octagon box, plaster ring, or open wiring without a junction box Finish/Profile: Low-profile white exterior finish; protrudes only 1-3/8 inches from the ceiling with junction box mounting Terminals: Screw terminals System Compatibility: Compatible with conventional supervised fire alarm circuits with panel-side battery backup.