ARP

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Technical content

© 2016 Littelfuse Protection Relays & Controls Protection Relays Alternating Relays www.littelfuse.com/ Rev: 1-A-062116 www.littelfuse.com/arp

Description

The ARP Series is used in systems where equal run time for two motors is desirable. The selector switch allows selection of alternation or for continuous operation of either load. LED’s indicate the status of the output relay. This versatile series may be front panel mounted (BZ1 accessory required) or 35 mm DIN rail mounted with an accessory socket. Operation Alternating: When the rotary switch is in the “alternate” position, alternating operation of Load A and Load B occurs upon the opening of the control switch S1 . To terminate alternating operation and cause only the selected load to operate, rotate the switch to position “ A ” to lock Load A or position “B” to lock Load B. The LEDs indicate the status of the internal relay and which load is selected to operate. Note: Input voltage must be applied at all times for proper alternation. The use of a solid-state control switch for S1 may not initiate alternation correctly. S1 voltage must be from the same supply as the unit’s input voltage (see connection diagrams). Loss of input voltage resets the unit; Load A becomes the lead load for the next operation. Duplexing (Cross Wired): Duplexing models operate the same as alternating relays and when both the Control (S1) and Lag Load (S2) Switches are closed, Load A and Load B energize simultaneously. The DPDT 8-pin, cross-wired option, allows extra system load capacity through simultaneous operation of both motors when needed. Relay contacts are not isolated. Features & Benefits FEATURES BENEFITS Alternating or electrically locked operation Flexibility to run unit alternating between the two loads as normal or lock the relay to one specific load. Low profile selector switch Prevents accidental actuation LED status indication Visual indication of which load is engaged Industry standard base connection Flexibility to use in many applications ARP SERIES Alternating Relay Wiring Diagram L1 N/L2 L1 N/L2 L1 N/L2 V = VOLTAGE LA = LOAD A LB = LOAD B S1 = PRIMARY CONTROL SWITCH S2 = LAG LOAD SWITCH Relay contacts in above are isolated. SPDT 8-PIN DPDT 1 1-PIN DPDT 8-PIN CROSS WIRED

Ordering Information

AR120A-3095 120VAC SPDT 8 pin for alternating applications. Rotary switch allows user to lock internal relay to one specific load. ARP23S 24VAC DPDT 8 pin cross wired for duplexing applications. Rotary switch allows user to lock internal relay to one specific load. ARP41 120VAC SPDT 8 pin for alternating applications. ARP41S 120VAC SPDT 8 pin for alternating applications. Rotary switch allows user to lock internal relay to one specific load. ARP42S 120VAC DPDT 11 pin for alternating applications. Rotary switch allows user to lock internal relay to one specific load. ARP43 120VAC DPDT 8 pin cross wired for duplexing applications. ARP43S 120VAC DPDT 8 pin cross wired for duplexing applications. Rotary switch allows user to lock internal relay to one specific load. ARP61S 230VAC SPDT 8 pin for alternating applications. Rotary switch allows user to lock internal relay to one specific load. ARP62S 230VAC DPDT 8 pin cross wired for duplexing applications. Rotary switch allows user to lock internal relay to one specific load. ARP63S 230VAC DPDT 8 pin cross wired for duplexing applications. Rotary switch allows user to lock internal relay to one specific load. If you don’t find the part you need, call us for a custom product 800-843-8848 8-PIN 11-PIN

© 2016 Littelfuse Protection Relays & Controls Protection Relays Alternating Relays www.littelfuse.com/ Rev: 1-A-062116 www.littelfuse.com/arp Accessories BZ1 Front Panel Mount Kit Provides an easy method of through-the-panel mounting of 8- or 11-pin plug-in timers, flashers, and other controls. NDS-8 Octal 8-pin Socket 8-pin 35mm DIN rail or surface mount. Rated at 10A @ 300VAC. Surface mounted with two #6 (M 3.5 x 0.6) screws or snaps onto a 35 mm DIN rail. Uses PSC8 hold-down clips. NDS-11 11-pin Socket 11-pin 35mm DIN rail or surface mount. Surface mounted with two #6 (M 3.5 x 0.6) screws or snaps onto a 35 mm DIN rail. Uses PSC11 hold- down clips. PSC8 or PSC11 Hold-down Clips Securely mounts plug-in controls in any position. Provides protection against vibration. Use PSC8 with NDS-8 Octal Socket or PSC11 with NDS-11 Socket. Sold in sets of two. C103PM (AL) DIN Rail 35 mm aluminum DIN rail available in a 36 in. (91 .4 cm) length. ARP SERIES Specifications Input Tolerance 24VAC -15% to 20% 120 & 230VAC -20% to 10% AC Line Frequency 50/60Hz Output Type Electromechanical relay Form SPDT, DPDT, or cross wired DPDT Rating 10A resistive @ 120/240VAC & 28 VDC; 1/3 hp @ 120/240VAC Maximum Voltage 250VAC Life Mechanical - 1 x 107; Electrical - 1 x 10 6 Protection Isolation Voltage ≥ 1500V RMS input to output Mechanical Mounting Plug-in socket Dimensions H 81.3 mm (3.2”); W 60.7 mm (2.39”); D 45.2 mm (1.78”) Termination Octal 8-pin or magnal 11-pin Environmental Operating/Storage Temperature -20° to 60°C / -30° to 85°C Weight 5.6 oz (159 g) approx. NOTE: Unit does not have debounce time delay.