DATA SHEET SNAP Mechanical Power Relay Output Module Form 1967-150302 SNAP Mechanical Power Relay Output Module Features Four isolated channels Each channel switches up to 6 A at 250 VAC or 30 VDC Channel-specific LEDs Operating temperature: -20 to 70 C UL approved Description SNAP-OMR6-C The SNAP mechanical power relay output module, part number SNAP-OMR6-C, offers four channels for switching loads of up to 6 amps at 250 VAC or 30 VDC. wiring and module function are identical. Note torque differences This module handles more current than any other SNAP in Specifications (page 3). output module. Each contact can carry 6 amps, and having more than one channel on at the same time does not reduce the amount of power each channel can carry. I/O Processor Compatibility The SNAP-OMR6-C is a form C module, so each of the four The SNAP mechanical power relay output module is mechanical contacts can be wired as normally open or compatible with all SNAP PAC brains and rack-mounted normally closed. Fusing is not provided you must provide controllers, including both standard wired models and fusing when wiring the module. Wired+Wireless models. The SNAP-OMR6-C provides channel-to-channel isolation. Notes for legacy hardware: This module is also compatible Because channels are not polarity sensitive, each channel can with SNAP Ultimate, SNAP Ethernet, and SNAP Simple brains, switch either AC or DC power, thus potentially reducing the as well as other SNAP brains such as the serial B3000 and the number of modules needed. B3000-B. The module can also be used on B-series and M-series mounting racks. In solid-state SNAP AC output modules, possible leakage current might cause an electronic input to stick in the ON SNAP-OMR6-A state. In contrast, a channel on this mechanical power relay module presents a true open circuit when it is off. In addition, A previous module, the form A SNAP-OMR6-A, is no longer the SNAP-OMR6-C can be used exactly as a solid-state AC available. Use the SNAP-OMR6-C as a pin-identical, drop-in module is used. replacement for this obsolete module. NOTE: This module may not be suitable for low-level switching. Specifications and wiring diagrams for the obsolete SNAP- OMR6-A are included in this data sheet for reference only. Part of the SNAP PAC System, the SNAP-OMR6-C mounts on a SNAP PAC rack with a SNAP PAC brain or rack-mounted controller. Analog, digital, and serial I/O modules can all be on the same rack. Such an I/O unit is also well suited for PC-based Part Number control or for use as intelligent remote I/O for an Allen-Bradley PLC system. Part Description NOTE: SNAP-OMR6-C modules manufactured prior to March 2014 SNAP 4-channel Mechanical Power Relay SNAP-OMR6-C have four black field wiring connectors newer modules have a Module, SPDT (Form C) single large gray connector as shown above. Field connector Opto 22 43044 Business Park Drive Temecula, CA 92590-3614 www.opto22.com PAGE SALES 800-321-6786 951-695-3000 FAX 951-695-3095 sales opto22.com SUPPORT 800-835-6786 951-695-3080 FAX 951-695-3017 support opto22.com 1 20112015 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.SNAP Mechanical Power Relay Output Module Installation The following diagram shows part of a SNAP mounting rack. Modules snap securely into place in the row of connectors on the rack. Each module connector is numbered, starting with position zero. Module Module connectors Processor connector position zero Retention bar 1. Place the rack so that the module connector numbers are right-side up, with zero on the left, as shown in the diagram above. (If your rack has screw connectors, the screw connectors will be at the bottom.) NOTE: Check the data sheet or users guide for the brain or on-the-rack controller you are using to determine any restrictions on module placement. 2. Position the module over the module connector, aligning the small slot at the base of the module with the retention bar on the rack. When positioning modules next to each other, be sure to align the male and female module keys at the tops of the modules before snapping a module into position. 3. With the module correctly aligned, push on the module to snap it into place. 4. (Optional) Use standard 4-40 x 1/2 truss-head Phillips hold-down screws (provided) to secure both sides of each module. CAUTION: Do not over-tighten screws. Torque for hold- down screws: 4 in-lb (0.45 N-m) 5. Follow the wiring diagrams on page 4 to attach the module to field devices. Torque for connector screws: 1.7 in-lb (0.2 N-m) Modules require a special tool (provided) for removal. Opto 22 43044 Business Park Drive Temecula, CA 92590-3614 www.opto22.com PAGE SALES 800-321-6786 951-695-3000 FAX 951-695-3095 sales opto22.com SUPPORT 800-835-6786 951-695-3080 FAX 951-695-3017 support opto22.com 2 20112015 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations. DATA SHEET SNAP Mechanical Power Relay Output Module Form 1967-150302