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SNAP PAC Racks

Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com

SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • [email protected] • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • [email protected]

© 2007–2016 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.

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Features

Compatible with all SNAP PAC brains and R-series 
controllers, including Wired+Wireless

 models

Secure mounting for SNAP I/O modules plus a SNAP 
brain or on-the-rack SNAP PAC controller

Analog, digital, and serial modules on the same rack

Panel or DIN-rail mounting

Modules snap into place

Factory Mutual-approved versions available

Description

SNAP PAC I/O mounting racks are designed to hold an 
intelligent SNAP I/O processor—a SNAP PAC EB-series or SB-
series brain or a SNAP PAC R-series on-the-rack controller—
and several I/O modules. Both standard wired controllers and 
brains and Wired+Wireless models are mounted on these 
racks.

Since SNAP analog, digital, and serial I/O modules all have the 
same footprint, customers using SNAP PAC racks can mix all 
these modules on the same I/O mounting rack. Field devices 
are wired directly to the top-mounted connectors on the 
modules plugged into each rack, or through breakout boards 
when additional wiring space is required. (See form 1756, the 

SNAP TEX Cables and Breakout Boards Data Sheet

, for more 

information.)

SNAP PAC racks can accommodate up to 4, 8, 12, or 16 I/O 
modules. Part numbers ending in -FM are Factory Mutual 
approved.

The module and rack design allows modules to simply “snap” 
on the mounting rack. 

SNAP PAC racks use a retention rail locking system that holds 
modules securely to the rack. Normally, a hold-down screw is 
not required. However, for applications that require additional 

module security, SNAP PAC racks have provisions for two 4-40 
by ½-inch standard machine screws to hold each module in 
position.

All SNAP PAC racks offer panel mounting and the option of 
DIN-rail mounting. DIN-rail adapter part numbers are shown in 
the table below. For more information, see form 1772, the 

SNAP TEX Mounting/Wiring Tools and Spare Parts Data Sheet

.

SNAP PAC racks require a 5 VDC power source. One power 
supply can usually power the rack, the I/O processor 
(controller or brain), and all modules on the rack. See form 
1120, the 

SNAP Power Supplies Data Sheet

, to choose a power 

supply.

SNAP-PAC-RCK8 (8-Module Position I/O Mounting Rack)

Shown with SNAP-PAC-R1 controller and SNAP modules (all 
purchased separately)

Part Numbers

Part

Description

SNAP-PAC-RCK4

4-module SNAP PAC rack

SNAP-PAC-RCK4-FM

4-module SNAP PAC rack, Factory 
Mutual approved

SNAP-PAC-RCK8

8-module SNAP PAC rack

SNAP-PAC-RCK8-FM

8-module SNAP PAC rack, Factory 
Mutual approved

SNAP-PAC-RCK12

12-module SNAP PAC rack

SNAP-PAC-RCK12-FM

12-module SNAP PAC rack, Factory 
Mutual approved

SNAP-PAC-RCK16

16-module SNAP PAC rack

SNAP-PAC-RCK16-FM

16-module SNAP PAC rack, Factory 
Mutual approved

SNAP-FUSE7.5AB

7.5-amp fuse, 25 pack

SNAP-TEX-DRC10

SNAP rack DIN-rail adapter clip, 10-
pack

SNAP-TEX-REC10W

Wide end cap for SNAP PAC racks 
DIN-rail assemblies, 10-pack

SNAP-TEX-REC10N

Narrow end cap for SNAP PAC racks 
DIN-rail assemblies, 10-pack

SNAP-PAC-RCK12

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