Opto 22 SNAP-IT-RM16, SNAP-IT-PM12, SNAP-IT-WM4 Data Sheet

SNAP PAC SYSTEM ENCLOSURES

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Features

Sturdy enclosures provide protection and convenience for
your SNAP PAC System

Just add the I/O modules and processor (brain or rack­mounted controller) needed for your application

Mounting rack and power supply are already wired

Easy to install and use

DESCRIPTION

SNAP-IT enclosures make it easy to install Opto 22 I/O where you
need it. With a choice of rack, panel, and wall mounting, these
enclosures provide convenience and protection for your processor
and I/O.

Each enclosure includes an I/O mounting rack and a power supply,
already wired. You add the I/O processor, either a SNAP PAC R-series
controller or a SNAP PAC Ethernet brain, and the SNAP input and
output (I/O) modules needed for your application.

Adding a Processor

For the processor, if you need programming capability, choose a SNAP
PAC R-series programmable automation controller. The PAC Project
Basic Software Suite is a free download from our website and provides
full-featured control programming plus HMI (human-machine
interface) development and runtime.

DATA SHEET

Form 1240-170922

PAGE 1

SNAP-IT-RM16

See the Products tab on the Opto 22 website ( to
choose your processor and I/O and to download the free PAC Project
software.

Enclosure Models

Three SNAP-IT enclosures are available:

SNAP-IT-RM16—This rack-mounted metal enclosure is a standard
3U box and can also be used as a tabletop unit. It holds one processor
and up to 16 I/O modules. A typical application would be monitoring
and controlling facilities and interior equipment.

If you don’t need programmability, choose a SNAP PAC Ethernet brain.
These brains provide local intelligence and communication and can
be used with a SNAP PAC controller, with an Allen-Bradley PLC or a
Modbus/TCP system, or for PC-based control.

Controllers and brains communicate over a standard 10/100 Mbps
wired Ethernet network. In some enclosures you can also use a
Wired+Wireless™ model, which communicates over a wired Ethernet
network, over an 802.11a, b, or g wireless LAN, or both ways
simultaneously.

Adding I/O

For I/O, you can choose the mix of analog, digital, and serial modules
you require. Modules range from one to 32 points per module, and a
wide variety of signal types is available. All SNAP I/O modules work
with any SNAP PAC brain or R-series controller and all can be mixed in
the same enclosure.

Part Numbers

Part Description

SNAP-IT-RM16

SNAP-IT-PM12

SNAP-IT-WM4

POWERCABLE-US

POWERCABLE-UK

POWERCABLE-INTL

SNAP PAC System 16-module enclosure, metal,
rack-mounted

SNAP PAC System 12-module enclosure, NEMA
3R, metal, panel-mounted

SNAP PAC System 4-module enclosure, NEMA
4, 4X, 6; IP66, IP67; polycarbonate, wall-mounted

120 VAC power cord (United States) for the
SNAP-IT-RM16

240 VAC power cord (United Kingdom) for the
SNAP-IT-RM16

240 VAC power cord (International) for the
SNAP-IT-RM16

© 2012–2017 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-IT-PM12—This panel­mounted enclosure is a
NEMA3R metal housing for
mounting on interior or exterior
walls or equipment. It holds one
processor and up to
12 I/O modules and includes a
24 V loop power supply.

DATA SHEET

Form 1240-170922

PAGE 2

SNAP-IT-PM12 units are ideal for
use in industrial environments,
for example manufacturing and
processing machinery,
communication towers, tanks,
and pipelines.

SNAP-IT-WM4—The NEMA 4/4X/6 wall-mounted WM4 is a sturdy
polycarbonate industrial enclosure that holds one processor and up
to four I/O modules. It includes a 24 V loop power supply.

The SNAP-IT-WM4 has a transparent cover. It is a handy size for small
areas and mounts on any wall.

SPECIFICATIONS

SNAP-IT-RM16 SNAP-IT-PM12 SNAP-IT-WM4

Mounting Rack mounted Panel mounted Wall mounted

Enclosure

Dimensions

Items included

I/O module slots 16 12 4

Power supply

Power consumption 30 W 30 W 10 W

Power cord
(order separately)

LED indicators

Operating temperature

Storage temperature

Humidity 0–95% humidity, non-condensing 0–95% humidity, non-condensing 0–95% humidity, non-condensing

Warranty 30 months 30 months 30 months

1

NEMA 3 or NEMA 4 is recommended for exterior use.

2

See I/O, brain, or controller data sheets for details on LEDs.

3

Operating and storage temperatures listed are for the enclosure only. Temperature limitations for the processor and I/O you install inside the

enclosure are more limiting. See the processor’s and I/O modules’ data sheets for their specifications.

2

Standard 19-inch metal rack-mount
enclosure, 3U

17.25" W x 5.22" H x 7.5" D
(43.8 cm x 13.3 cm x 19.1 cm) Depth
includes modules, which extend 0.88"
(2.3 cm) out the back of the box for wir­ing convenience.

Enclosure, SNAP PAC mounting rack,
and power supply

UL rated 120-250 VAC
Manufacturer rated 100-250 VAC

120 VAC United States,
240 VAC United Kingdom, or
240 VAC International

On front panel, 64 LEDs indicate point
status for 4-channel digital
I/O modules; brain or controller LEDs
are also visible on front.

3

0° to 70° C (32 to 158° F) 0° to 70° C (32 to 158° F) –40 to 80°C (–40 to 176° F)

3

–30° to 85° C (–22 to 185° F) –30° to 85° C (–22 to 185° F) –40 to 80 °C (–40 to 176° F)

Metal enclosure; meets NEMA 3R.1

16.19" W x 18.25" H x 6.57" D
(41.1 cm x 46.4 cm x 16.7 cm)

Enclosure, SNAP PAC mounting rack,
power supply, and 24 V loop power
supply

UL rated 120-250 VAC
Manufacturer rated 100-250 VAC
Loop power supply: 24 VDC

n/a n/a

Status LEDs on I/O and status/commu­nication LEDs on brain or controller are
not visible outside the enclosure.

Polycarbonate industrial enclosure,
transparent cover; meets NEMA 4, 4X,
6 and IP66, IP67

9.84" W x 6.89" H x 5.9" D
(25.0 cm x 17.5 cm x 15.0 cm)

Enclosure, SNAP PAC mounting rack,
power supply, and 24 V loop power
supply

100–240 VAC (50/60 Hz)
Loop power supply: 24 VDC

Status LEDs on I/O and status/commu­nication LEDs on brain or controller are
visible through transparent cover.

© 2012–2017 Opto 22. All rights reserved. Dimen sions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.