924

Sensitive Relay ELK-924 & 924-4 The ELK-924 Sensitive Relay module features DPDT (Form C) dry contacts for general purpose switching of devices or high current loads. It operates on 12 or 24 Volts D.C. and can be triggered with a negative or positive input at an incredible low current of only 1 milliamp. Also available in a 4 pack (ELK-924-4) which is packaged as 4 relay modules grouped on a pre- scored break-off circuit board. Features Super Low 1.2 mA Trigger Current. Positive (+) Or Negative (-) Trigger Input. Double Form C Contacts DPDT. Heavy Duty Contact Rating. On Board LED Status Indicator. Includes Double Sided Mounting Tape. Mounts in Standard 2.75 Snap Track. Packaged in Reusable Poly Storage Box. Lifetime Limited Warranty. Specifications Operating Voltage: 12 or 24 Volts D.C., jumper selectable. Current Draw: 60mA (both relays on). Relay Contacts: Form C, 7A 30 VDC, 10 A 125 VAC. Size: 1.5 x 2.75. Trigger Voltage: 5 - 24 Volts D.C. Trigger Current: 1.2mA 12 VDC. PO Box 100 Hildebran, NC 28637 800-797-9355 828-397-4200 ELK Fax 828-397-4415 www.elkproducts.com info elkproducts.com PRODUCTS, INC.POS NEG -T +T POS NEG -T +T POS NEG -T +T POS NEG -T +T POS NEG -T +T POS NEG -T +T Instructions ELK-924 APPLICATIONS AND WIRING DIAGRAMS Wire Jumper: Relay Contacts: Cut for 24V operation COM and N/C are connected Power Terminals: when ELK-924 is off (no trigger). Connect to Aux. Power. COM and N/O are connected when ELK-924 is on. POS =, NEG = Trigger Terminals: For positive (+) outputs, use +T. Relay Contacts: For negative (-) outputs, use -T. ELK-924 COM and N/C are connected when ELK-924 is off (no trigger). COM and N/O are connected when ELK-924 is on. RED LED (D3): On: The ELK-924 is triggered and BOTH relays are energized (COM and N/0 are connected). Off: The ELK-924 is not triggered and BOTH relays are de-energized (COM and N/C are connected). 120V Control Panel Dual Switch Control Panel AC Parallel Contacts for High +12V (Simultaneously +12V Current Switching Low current GND Floodlight Alarm High Current Switches 12V DC and GND Low current Output Load (12A max) alarm output 120V AC) + - Heavy- gauge Wires + Siren or + ELK-924 - ELK-924 Bell - Heavy-Duty Power Supply + - 12V Power Supply Example 3: Wire jumpers are used to tie Relays and in parallel Example 1: The relays are used to switch two different voltages. The for high current switching. Currents as high as 12A can be switched with ELK-924 is powered by the control panel and triggered by a low-current, this hookup. Note: Use heavy-gauge wire for all high current runs. positive alarm output. Hookup Examples for Disabling Sensitive Trigger Control Panel Access-Activated 24-Hour Control Panel +12V Alarm Zone Shunt GND Output Access 24 hr. GND zone Output Not Jumper between Used POS and +T ELK-924 Control Panel +12V ELK-924 Alarm Output NC Switch Jumper between NEG and -T ELK-924 Example 4: If sensitive trigger is not desired, place a wire jumper between Example 2: Relay is used to bypass a 24 hour zone when an access code is entered on the control s keypad. The Access Output is POS and +T (for positive output controls) or between NEG and -T (for connected to -T on the ELK-924. negative output controls). 05/03 D3 24V OPEN D3 24V OPEN A B N/O COM N/C N/O COM N/C B A N/O COM N/C N/O COM N/C D3 24V OPEN B A N/O COM N/C N/O COM N/C D3 24V OPEN D3 D3 24V OPEN 24V OPEN B A N/O COM N/C N/O COM N/C B B A A N/O COM N/C N/O COM N/C N/O COM N/C N/O COM N/C