Mircom MHD-65-135 Series 65 Plug In Heat Detector 135 Degrees Requires MSB-65B Base
The MHD-65-135 is a conventional plug-in heat detector head from the Mircom MIR-65 series, combining a 135 F (57 C) fixed-temperature limit with rate-of-rise detection. It senses heat with a matched pair of thermistors, one exposed and one sealed, and works over a wide 9-33 VDC supply range. The head needs a MIR-65 base such as the MSB-65B two-wire base, ordered separately.
Key Features
- Fixed temperature (135 F / 57 C) plus rate-of-rise heat detection
- Matched thermistor pair sensing
- Red LED flashes in standby and turns steady in alarm
- Magnetic test switch
- Wide operating voltage, 9-33 VDC; can be used on security systems
- Low profile: 1-5/8 in. H x 4 in. diameter
- Separate head/base design; locking feature reduces tampering
- UL file S6299; CSFM 7270-1477:136
Specifications
| Model |
MHD-65-135 |
| Rating |
135 F (57 C) fixed temperature and rate-of-rise |
| Supply voltage |
9 to 33 VDC |
| Standby current (without accessories) |
55 uA at 24 VDC; 50 uA at 9 VDC |
| Alarm current (without accessories) |
52 mA at 24 VDC; 17 mA at 9 VDC |
| Alarm indication |
Steady red LED |
| Size |
1-5/8 in. H x 4 in. diameter |
| Required base |
MSB-65B (2-wire) or MSB-65B-4 / MSB-65B-4R (4-wire relay) |
Compatible With
- Mircom MSB-65B 2-wire E-Z Fit base
- Mircom MSB-65B-4 4-wire standard relay base
- Mircom MSB-65B-4R 4-wire auxiliary relay base
- Conventional 2-wire and 4-wire initiating circuits
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