Marsh Bellofram Diversified Electronics Division SPM Series Temperature Switch Relay - Marsh Bellofram - #1

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800.727.5646 atcdiversified.com Diversified Electronics SPM Series 275 T emp e rat u r e S w i t c h R e l a y The non-volatile latching temperature switch relay monitors a normally-closed-low temperature switch. It incorporates a bistable relay that retains its state during power failures. LEDs indicate the status of the relay, and connections for an external reset button are provided for manual control. The reset inputs of multiple units may be connected to a single push button as long as proper polarity is observed when making the connections. Under normal conditions the temperature switch is closed and the relay is de-energized. When the temperature switch opens, the relay energizes and latches on until the temperature switch re-closes and the reset button is pressed. The unit will function properly with zero to 2k ½ of resistance in series with the temperature switch. Special Controls // SPM Series \\\OPERATION \\\DIMENSIONS (INCHES) \\\SPECIFICATIONS SUPPLY VOLTAGE 120 VAC, 50/60 Hz POWER REQUIRED 2 VA DUTY CYCLE Continuous CONTACT RATING SPM-120-ACA SPDT, 10 A @ 250 VAC, Resistive, 360 VA Ind. SPM-120-ADA DPDT, 10 A @ 250 VAC, Resistive, 360 VA Ind. RESPONSE TIMES Operate 10 ms (approximately) Release 1 SEC (approximately) LIFE EXPECTANCY Mechanical 30 Million Operations Electrical 50,000 Operations @ Rated Load INDICATORS SPM-120-ACA Green LED illuminates under normal conditions Red LED illuminates under fault conditions SPM-120-ADA None TEMPERATURE SWITCH Voltage 12 VDC Current 2 mA max. TEMPERATURE RATING Operate -4° to 131°F (-20° to +55°C) Storage -40° to 185°F (-40° to +85°C) ENCLOSURE 11-Pin plug-in “A” style enclosure WEIGHT 8 oz. MODEL NUMBER >>>>>> SPM 120 Contacts SPDT Contacts ACA DPDT Contacts ADA \\\WIRING ADA ACA RB-11/PF113A RB-11/PF113A