RIB,Relay In A Box,Functional Devices RIBTWX2402B-BC Data Sheet

24 Vac/dc

208-277 Vac

IN4004

NETWORK COMPATIBLE RELAY / CURRENT SENSOR COMBOS

RIBMNWX2402B-BC

2.75˝ Track Mount BACnet® MS/TP Network Relay

Device; One Binary Output (20 Amp Relay SPDT +
Override); Two Binary Inputs (One Current Sensor

0.25 - 20 Amp, Relay Load Sensing & One Dry
Contact Binary Input), 24 Vac/dc or

208-277 Vac Power Input, Optional End of Line
Resistor (EOL) Included.

}

REF

A(–)

B(+)

}

1
0

Relay

Override

Baud
Rate

LSB

1 2 3 4 5 6 7 8 9 10 11 12

MSB

SPECIFICATIONS

# Relays & Contact Type:

Expected Relay Life:

Operating Temperature:

Humidity Range:

Network Communication:

Current Sensor Status:

Binary Input Status:

Housing Rating:

Relay Override Switch:

Network Media:

DIP SWITCHES* BAUD RAT E

8 9 10

0 0 0

0 0 1

0 1 0

0 1 1

1 0 0

1 0 1

All other combinations=9600 baud

Dry Contact

Binary Input

MS/TP ADDRESS

Operate Time:

Relay Status:

Dimensions:

Track Mount:

Approvals:

Gold Flash:

Terminations:

Polarity:

Baud Rate:

MSTP

Red LED=Relay Status

Connect Jumper for EOL.
Disconnect for no
terminating resistor.

One (1) SPDT Continuous Duty Coil
10 million cycles minimum mechanical

-30 to 140° F
5 to 95% (noncondensing)
18ms
Green LED
Red LED On = Activated
Pink LED On = Activated
Pink LED On = Activated

6.00˝ x 2.75˝ x 1.75˝ (RIBMNWX2402B-BC)

4.28˝ x 7.00˝ x 2.00˝
with .75˝ NPT Nipple (RIBTWX2402B-BC)
MT212-6 Mounting Track Provided
UL Listed, UL916, C-UL
UL Listed, NEMA 1, C-UL, CE Approved,
UL Accepted for Use in Plenum,
Also available NEMA 4 / 4X
No
DIP Switch Control

Twisted Pair 22-24AWG, shielded recommended
Functional Devices product installed at both ends
of the MS/TP network – Use 120 Ω end of line
resistors. All other cases – Follow instructions
from the device installed at the end of the MS/TP
network.
Network is polarity sensitive
9600, 19200, 38400, 57600, 76800, 115200 (DIP
Switch Selectable)

9600

19200

38400

57600

76800

115200

RIBTWX2402B-BC

Enclosed BACnet® MS/TP Network Relay

Device; One Binary Output (20 Amp Relay SPDT +
Override); Two Binary Inputs (One Current Sensor

0.25 - 20 Amp, Relay Load Sensing & One Dry
Contact Binary Input), 24 Vac/dc or

208-277 Vac Power Input, Optional End of Line
Resistor (EOL) Included.

}

Contacts

Internal
Current

Sensor

Pink LED=Binary Input Status

Pink LED=Current Sensor Status

Green LED=Network Communication

Low Voltage

Power Input

High Voltage

}

Comm

Neutral

DIP SWITCHES* RELAY STATE**

11 12

1 0

X 1

0 0

* 0 = Open ; 1 = Closed
** Device must be powered for override

RIBMNWX2402B-BC or RIBTWX2402B-BC

COM

N/O

N/C

Power Input

}

Contact Ratings:

20 A

mp Resistive @ 277 Vac
20 Amp Ballast @ 277 Vac
16 Amp Electronic Ballast @ 277 Vac (N/O)
10 Amp Tungsten @ 120 Vac (N/O)
1110 VA Pilot Duty @ 277 Vac
770 VA Pilot Duty @ 120 Vac
2 HP @ 277 Vac
1 HP @ 120 Vac

Power Input:

24 Vac/dc ; 208-277 Vac ; 50/60 Hz

Power Input Ratings:

105 mA @ 24 Vac
78 mA @ 24 Vdc
120 mA @ 208-277 Vac

Current Sensor Range:

0.25 - 20 Amps
Threshold xed at .25 Amps.

Auto

Override on

Override o

• Dry contact binary

input is a general
purpose input that is
not tied t

o the relay
internally. Can be used
with any dry contact

ching device, such

swit
as a current sensor,
to report back to the
network.

Half-Wave Device

Made in USA

Meets

“Buy American”

of ARRA 2009

Notes:

• Device can be powered by either 24 Vac/dc or

208-277 Vac, but not both.

• Order NEMA 4 housing by adding “-N4” to end

of model number. (RIBTWX2402B-BC-N4)

• Order with grey lid by adding “-GY” to end of

model number. (RIBTWX2402B-BC-GY)

• Order NEMA 4 housing with grey lid by adding

“-N4-GY” to end of model number.
(RIBTWX2402B-BC-N4-GY)

• When connecting 24 Vac to both the RIB(s)

and a half-wave device, damage to device can
occur. Option 1: Use separate transformers for
each device. Option 2: Add diode between
devices, see Option 2 note below. ^^

BACnet® Details:

• MS/TP Address & Baud Rate must be set prior

to power up via DIP switches.

• Device ID will default to 277XXX where XXX is

the MS/TP Address.
Examples:

MS/TP Address - 004
Device ID - 277004

MS/TP Address - 121
Device ID - 277121

• Device ID can be changed via network

command. Once changed, it will no longer
default to 277XXX. (MS/TP Address & Device ID
must be unique.)

• This model utilizes: BO 1 (Relay output),

BI 1 (Dry contact binary input), BI 2 (Internal
current sensor input)

• Device Instance changed via Object Identier

Property of Device Object

• PIC Statement available on website.

http://www.functionaldevices.com/pdf/
pics/RIBxWX240xB-BC_PICS.pdf

Or scan QR code with your smart phone.

24 Vac

24 Vac/dc

Com

24 Vac

Com

^^ Option 2: Add diode on 24 Vac power (Com) interconnection

between devices. Band on diode faces towards RIB(s).

071717