The Complete System Solution! Highest Grade Electronic Components RoHS Compliant.

Transcription

1 Advantages of the 72 Alternating Relay The Complete System Solution! Highest Grade Electronic Components RoHS Compliant. The Model 72 series Alternating Relay is designed for duplex pumping systems where it is desirable to equalize pump run time. The solid state alternating circuit drives an internal electromechanical relay. A continuous power source and control switch are required. The control switch (float, pressure or other isolated contact) is connected between the L terminal and the control terminal. Each time the control switch is opened the output contacts will change status. Indicator lights on the case show the internal relay status. Setting the top toggle switch to Load or Load 2 will lock the relay in position, preventing alternation. UL Listed when 72 Relay and Octal Socket are Combined UL Approved for Field Replacement. Offers a one stop solution for your pump management system. Several configurations available to meet your individual needs. Switching capabilities up to 2 amps. Two LED status indicators; indicate status of the separate loads independently. Dual oltage Coils eliminate the need to specify AC or DC (AC only for 240 volts). Only 36 mm s wide; does not take up any additional room on the DIN rail. Color and appearance designed for high visibility in all environments. Engineering availability allows for customized control system solutions. 6-7C FLANGE ADAPTER See Section 3 p C4 DIN RAIL ADAPTER 7/6

2 Load Indicator Indicates when Load is Active. Load 2 Indicator Indicates when Load 2 is Active. Top Toggle Switch To Lock Load in Position. Industry Proven Power Relay Technology 2 Amp Relay with Dual oltage Capability. Industry Standard 8 or Pin Octal Socket Compatible Easy Installation and Replacement. 7/7

3 72 Alternating Relay/, 2 Amp Rating C UL US UL Listed When Used With Magnecraft Sockets. Load Indicator Load 2 Indicator Toggle Switch UL Recognized File No. E4364 Optional Flange Mounting Proven Relay Technology 72 Relay with the DL8- Socket General Specifications (UL 508) Contact Characteristics Number and type of Contacts Contact materials Thermal (Carrying) Current Maximum Switching oltage Current rating Switching voltage Minimum Switching Requirement Units A Resistive Resistive HP HP Pilot Duty ma 72XAXC 72XBXC CROSS WIRED 72XBXCK, PIN 9 - NO PIN - NC Silver Alloy /60Hz AC 240 AC B300 5 DC (.5W) 72XBXCK, PIN 9 - NC PIN - NO Coil Characteristics oltage Range Operating Range Average consumption Drop-out voltage threshold Timing Characteristics Time Delay - Fixed Reset Time Alternating Action % of Nominal Maximum W DC s ms 2, 24, % to 0% 80% to 0%.8.8 5% 0% Release of Control Switch Performance Characteristics Electrical Life (UL 508) Mechanical Life Rated insulation voltage Dielectric strength rms voltage Environment Product certifications Ambient air temperature around the device Degree of protection Weight Rated Current Unpowered Between coil and contact Between poles Between contacts Standard version Storage Operation (Resistive) (rms) (rms) (rms) C C grams 00,000 0,000, UR, CSA, CE IP (36) 0.08 (2) 2.6 (65).73 (44) 7/8 0.4 (0.2) 3.3 (83.5)

4 Standard Part Numbers Part Numbers 8 Pin Octal Base, 72XAXC-2 72XAXC-24 72XAXC-20 72XAXC-240A 8 Pin Octal Base, (CROSS WIRED) 72XBXC-2 72XBXC-24 72XBXC-20 72XBXC-240A Pin Octal Base, (PIN NC) 72XBXCK-2 72XBXCK-24 72XBXCK-20 72XBXCK-240A Pin Octal Base, (PIN NO) 72XBXCK-2 72XBXCK-24 72XBXCK-20 72XBXCK-240A Input oltage 2 AC/DC 24 AC/DC 20 AC/DC 240 AC 2 AC/DC 24 AC/DC 20 AC/DC 240 AC 2 AC/DC 24 AC/DC 20 AC/DC 240 AC 2 AC/DC 24 AC/DC 20 AC/DC 240 AC BOLD-FACED PART NUMBERS ARE NORMALLY STOCKED Timing Range Contact Configuration Rated Load Current Part Number Builder Series 72 Contact Configuration XAX = XBX = Pin Orientation C = 8 OCTAL CK = PIN OCTAL (PIN NC) CK = PIN OCTAL (PIN NO) Input oltage 2 = 2 AC/DC 24 = 24 AC/DC 20 = 20 AC/DC 240A = 240 AC Other mating sockets see Section 2: DL-, E8-, E-, , , , Relay Adapters Metal Hold-Down Clip See Section 3 p dl8- SOCKET.45 (37). (28) 0.08 (2) 2.6 (65) 6-7C4 Section 3, p (0.2) 6-7C Section 3, p (75) 3.77 (96) 7/9

5 Theory of Operation Wiring Diagram: 72XAXC 8 Pin Octal, with an 4 72XAXC LA A. is Input oltage If the Top Toggle Switch is in Alternate position closing Switch will alternate the loads between LA and. If the Top Toggle Switch is in Lock position Load LA is ON and Load is OFF. Switch is not used in this mode. If the Top Toggle Switch is in Lock 2 position Load LA is OFF and Load is ON. Switch is not used in this mode. Wiring Diagram: 72XBXC (DUPLEX) 8 Pin Octal, with a Duplex Capabilities. S LA B. is Input oltage S2 is Control Switch #2 If the Top Toggle Switch is in Alternate position closing Switch will alternate the loads between LA and while switch S2 will only control LA. If the Top Toggle Switch is in Lock position Switch will control LA while switch S2 will control. If the Top Toggle Switch is in Lock 2 position Switch will control while switch S2 will control LA. 7/0 Duplex (Cross Wired) Functionality: This model operates the same as alternating relays except when both the control Switches and S2 are closed, Load A and Load B energize simultaneously. The 8-pin, cross wired option, allows extra system load capacity through simultaneous operation of both motors when needed. Relay contacts are not isolated.

6 Wiring Diagram: 72XBXCK Pin Octal with a Pin 9 is Normally Open and Pin is Normally Closed LA C. is Input oltage If the Top Toggle Switch is in Alternate position closing Switch will alternate the loads between LA and. If the Top Toggle Switch is in Lock position Load LA is ON and Load is OFF. Switch is not used in this mode. If the Top Toggle Switch is in Lock 2 position Load LA is OFF and Load is ON. Switch is not used in this mode. Wiring Diagram: 72XBXCK Pin Octal with a Pin 9 is Normally Closed and Pin is Normally Open. 72XBXCK LA D. is Input oltage If the Top Toggle Switch is in Alternate position closing Switch will alternate the loads between LA and. If the Top Toggle Switch is in Lock position Load LA is ON and Load is OFF. Switch is not used in this mode. If the Top Toggle Switch is in Lock 2 position Load LA is OFF and Load is ON. Switch is not used in this mode. Note: Input voltage must be applied at all times for proper alternation. The use of a solid state control switch for or S2 may not initiate alternation correctly. or S2 voltage must be from the same supply as the unit s input voltage (see wiring diagrams). Loss of input voltage resets the unit; Load A becomes the lead load for the next operation. 7/