RN22/RN42
Installation drawing for installation in hazardous areas
Hazardous (Classified) Locations
I,II,II/1+2/ABCDEFG
Class I, Zone 0, IIC

Non-hazardous area

CSA approved intrinsicallysafe apparatus

enclosurewith at least IP20

e.g. Process transmitter

See Electrical data

e.g. RN22

Zone 0, 1, 2
EPL Ga, Gb, Gc
Zone 20, 21, 22
EPL Da, Db, Dc

CONDITIONS OF ACCEPTABILITY- If several devices are installed side by side, it is important to ensure that the maximum side wall temperature of the individual
device of 80°C (176°F) is not exceeded. If this cannot be guaranteed, mount the devices at a distance from one another or ensuresufficient cooling.
C- For model RN22-CB: the equipment shall only be powered by a power supply unit with a limited energy electric circuit in accordancewith CSA/UL/EN/IEC 61010-1:2010 chapter 6.3.1/6.3.2 and 9.4 or class 2 according to CSA 223/UL 1310.
- The control circuit connection shall be sourced a limited energy electric circuit in accordance with CSA/UL/EN/IEC 61010-12010
chapter 6.3.1/6.3.2 and 9.4 or class 2 according to CSA 223/UL 1310.
- For model RN42-CB: a disconnecting device shall be part of the end-use installation. This shall be accessible for the operator andmarked as required in IEC 61010-1: 2010 clause 6.11.4. (Circuit breaker in end-use installation is considered as disconnectingdevice).
- The external circuit breaker shall be separately certified and rated 10 A for model RN42-CB1, Type B and min. 1.5 kA breaking
capacity.
- The device is intended for installation in a cabinet or similar housing acceptable to the Authority having jurisdiction (AHJ). The
device may only be operated as an installed device.
- Equipment is only to be installed by trained personal in accordance to the installation, set-up.
Temperature range
Ta = -40°C ... +60°C
Electrical data:
Supply RN22:

Local potential equalisation

terminals 1.1 (+), 1.2 (-)

Installation Notes RN22, RN42
- CSA Approved Apparatus must be installed in accordance with manufacturer’s instructions.
- Install per Canadian Electrical Code or National Electrical Code (NFPA 70).
- Use supply wires suitable for 5°C above surroundings.
- For Non-hazardous area install the device of Protection Ratings of least IP 20 or equivalent.

Supply RN42:
terminals 1.1 (L/+), 1.2 (N/-)

terminal 3.1 (+), 3.2 (-)
terminal 2.1 (+), 2.2 (-)- WARNING: SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY”
AVERTISSEMENT: LA SUBSTITUTION DE COMPOSANTS PEUT COMPROMETTRE LA SECURITE INTRINSEQUE”- WARNING – POTENTIAL ELECTROSTATIC CHARGING HAZARD – SEE INSTRUCTIONSAVERTISSEMENT – DANGER POTENTIEL DE CHARGES ÉLECTROSTATIQUES – VOIR INSTRUCTIONS- WARNING - EXPLOSION HAZARD - DO NOT OPEN WHILE CIRCUIT IS LIVE UNLESS AREA IS KNOWN TO BE NONHAZARDOUS
AVERTISSEMENT - RISQUE D'EXPLOSION - NE PAS OUVRIR PENDANT QUE LE CIRCUIT EST SOUS TENSION, ÀMOINS QUE LA ZONE SOIT SUSCEPTIBLE D'ÊTRE NON DANGEREUSENONINCENDIVE Field WIRING INSTALLATION- The device is an Associated Nonincendive safe equipment and must be installed in non-hazardous locations only.
- The Nonincendive Field Wiring Circuit Concept allows interconnection of Nonincendive Field Wiring Apparatus
with Associated Nonincendive Field Wiring Apparatus or Associated Intrinsically Safe Apparatus or AssociatedApparatus not specifically examined in combination as a system using any of the wiring methods permitted for
unclassified locations, when Voc £ Vmax, Ca ³ Ci + Ccable, La ³ Li + Lcable.
- For entity installations use certified equipment that satisfy the following condition
Uo/Voc £ Vmax/Ui
Io/Isc £ Imax/Ii
Po £ Pi
Co/Ca ³ Ci + Ccable Lo/ La ³ Li + LcablePfanzelt
2021-07-13

Revision:
Date:-U = 24 to 230 V AC/DC (-20%/+10%) 50/60Hz
Um = 250V

Output circuit (connection to control unit):

INTRINSICALLY SAFE[Ex ia Ga] IIC / [AEx ia Ga] IIC[Ex ia Da] IIIC / [AEx ia Da] IIIC
Associated Apparatus for Class I, Division 1, Groups A, B, C, D
Associated Apparatus for Class I, Groups A, B, C & D; Class II, Groups E, F & G; Class III- The device is an Associated Intrinsically Safe equipment and must be installed in non-hazardous locations only.
- For entity installations use certified equipment that satisfy the following condition
Uo/Voc £ Vmax/Ui
Io/Isc £ Imax/Ii
Po £ Pi
Co/Ca ³ Ci + Ccable Lo/ La ³ Li + Lcable- The Terminal of the intrinsically safe circuit must be placed at least a distance of 50mm from terminals of thenon-intrinsically safe circuits, or adequate separators (e.g. ground metal partitions) must be used.
- Screw tight the unused terminals for keeping the required distances between intrinsically safe circuits/terminals.

Author:Date:

U = 24V DC (-20%/+25%)

Drawing No.:
Title:

U = 30V DC
I = 0/4-20mA
Um = 30V DC

Input circuit (connection to I.S. unit):
Connection 2-wire (active)
RN22:
terminal 4.1 (+), 4.2 (-)
terminal 6.1 (+), 6.2 (-)
RN42:terminal 4.1 (+), 4.2 (-)
Max connection values* (single appearance):
Ex ia IIC
La = 4.6mH
Ex ia IIB
La = 18.5mH
Ex ia IIA
La = 37mH

Uo £ 27.3V DC
Io £ 87.6mA
Po £ 597mW
Ci = negligibly small
Li = negligibly small
Co = 88nF
Co = 683nF
Co = 2280nF

Connection 4-wire (passive)
RN22:
terminal 4.2 (+), 5.1 (-)
terminal 6.2 (+), 5.2 (-)
RN42:terminal 4.2 (+), 4.3 (-)
Max connection values* (single appearance):
Ex ia IIC
La = 100mH
Ex ia IIB
La = 100mH
Ex ia IIA
La = 100mH
Connection 4-wire (passive)
RN22:
terminal 4.2 (+), 5.1 (-)
terminal 6.2 (+), 5.2 (-)
RN42:terminal 4.2 (+), 4.3 (-)

Uo £ 27.3V DC
Io £ 10mA
Po £ 68mW
Ci = negligibly small
Li = negligibly small
Co = 88nF
Co = 683nF
Co = 2280nF

Ui £ 30V DC
Ii not applicable when keeping Ui
Pi not applicable when keeping Ui
Ci = negligibly smallLi = negligibly small* Permissible maximum values for the external inductances and capacitances to CSA/UL 60079-11

10000011794
Control drawing CSA AIS NIFW

Material: 71535228
XA02684K/09/EN/01.21

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USRN22/RN42
Installation drawing for installation in hazardous areas
Hazardous (Classified) Locations
I/2/ABCDClass I, Zone 2, IIC

Hazardous area

Non-hazardous area

Output circuit (connection to control unit):

I/2/ABCDClass I, Zone 2, IIC

terminal 3.1 (+), 3.2 (-)
terminal 2.1 (+), 2.2 (-)

I=U=certified enclosure
with min. IP54

Um =See Electrical data

e.g. RN22
e.g. Process transmitter

Input circuit (connection to process unit):
Connection 2-wire (active)
RN22:
terminal 4.1 (+), 4.2 (-)
terminal 6.1 (+), 6.2 (-)
RN42:terminal 4.1 (+), 4.2 (-)
Connection 4-wire (passive)
RN22:
terminal 4.2 (+), 5.1 (-)
terminal 6.2 (+), 5.2 (-)
RN42:terminal 4.2 (+), 4.3 (-)

I=
U=

U<

0 to 22mA
0/4 to 20mA
17.5V (± 5%)
12 to 30V
30V

Output signal range (underrange / overrange)
Function range, output signal
Open-circuit voltage, active mode
External voltage, passive mode

0 to 22mA
0/4 to 20mA
17.5V ± 1V
24.5V (± 5%)

Input signal range (underrange / overrange)
Function range, input signal
Transmitter supply voltage (at 20mA)
Open-circuit voltage

7V

Input voltage drop signal (at 20mA)
for 4-wire connection

C

Temperature range

Local potential equalisation

Ta = -40°C ... +60°C

Installation Notes RN22, RN42
- CSA Approved Apparatus must be installed in accordance with manufacturer’s instructions.

- Install per Canadian Electrical Code or National Electrical Code (NFPA 70).
- Use supply wires suitable for 5°C above surroundings.
- Terminal specification:
Screw terminals
cable version,
stripping length =min. 7 mm (0.28 in)
Push-in terminals
cable version,
stripping length =min. 10 mm (0.39 in)TorqueCable version

Cable cross-section

0.5Nmto0.6Nm

Solid or flexible

0.25 to 2.5 mm² (24 to 14 AWG)

-Solid or flexible

0.25 to 2.5 mm² (24 to 14 AWG)

-Flexible with wire end ferrules
with/without plastic ferrule0.25 to 2.5 mm² (24 to 14 AWG)

INCREASED SAFETY
Ex ec IIC Gc
Class I, Zone 2, AEx ec IIC Gc
Class I, Division 2, Groups A, B, C, D- WARNING - EXPLOSION HAZARD – SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I,DIVISIONS 2- AVERTISSEMENT - RISQUE D'EXPLOSION - LE SUBSTITUTION DE COMPOSANTS PEUT NUIRE L'ADÉQUATIONPOUR LA CLASSE I, DIVISIONS 2- WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT, OR OPEN WHILE CIRCUIT IS LIVE UNLESS AREA ISKNOWN TO BE NON-HAZARDOUS- AVERTISSEMENT - RISQUE D'EXPLOSION - NE PAS DÉBRANCHER OU OUVRIR PENDANT QUE LE CIRCUIT ESTSOUS TENSION, À MOINS QUE LA ZONE SOIT SUSCEPTIBLE D'ÊTRE NON DANGEREUSECONDITIONS OF ACCEPTABILITY- For full certification as an electrical equipment the tests according to CSA/UL 60079-0 section 5.2 and 5.3 haveto be carried out. Based on the test results a temperature class shall be assigned.
- These components do not have any surface that achieves a temperature greater than 135°C with a 5K safetyfactor when operated under full load conditions at an ambient of range of 60°C respectively.
- If several devices are installed side by side, it is important to ensure that the maximum side wall temperature of
the individual devices of 80°C (176°F) is not exceeded. If this cannot be guaranteed, mount the devices at a
distance from one another or ensure sufficient cooling.
- For use in the type of protection increased safety Ex ec, and for Zone 2 (EPL Gc), and Class I, Division 2
applications, the active barrier RN22/RN42 shall be installed completely inside an additional enclosure,providing a degree of protection of not less than IP54 according to CSA/UL 60079-0 and CSA/UL 60079- 7. The
ambient temperature within the end use enclosure shall not exceed the limits of the permissible ambient
temperature range. Clearances, creepage distances, and separations as defined in CSA/UL 60079-7 shall beconsidered for the installation.
- For model RN22-CB: the unit shall only be powered by a power supply unit with a limited energy electric circuit inaccordance with CSA/UL/EN/IEC 61010-1:2010 chapter 6.3.1/6.3.2 and 9.4 or class 2 according to CSA 223/UL
1310.
- The control circuit connection shall be sourced a limited energy electric circuit in accordance withCSA/UL/EN/IEC 61010-1:2010 chapter 6.3.1/6.3.2 and 9.4 or class 2 according to CSA 223/UL 1310.
- For model RN42-CB: a disconnecting device shall be part of the end-use installation. This shall be accessible forthe operator and marked as required in IEC 61010-1: 2010 clause 6.11.4. (Circuit breaker in end-use installationis considered as disconnecting device).
- The external circuit breaker shall be separately certified and rated 10 A for model RN42-CB1, Type B and min.
1.5 kA breaking capacity.

Electrical data:
Supply RN22:
terminals 1.1 (+), 1.2 (-)

U = 24V DC (-20%/+25%)

Supply RN42:
terminals 1.1 (L/+), 1.2 (N/-)

Author:Date:

Pfanzelt
2021-07-13

U = 24 to 230 V AC/DC (-20%/+10%) 50/60Hz
Um = 250V

Revision:
Date:-Drawing No.:
Title:

10000011794
Control drawing CSA Cl. 1, Div.2

Material:

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