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Rteck recommends the use of its operation instructions upon installation of its product to ensure safe operation. The operation instructions and IEC product certification are available online at www.rteckpacific.com.
SERIES RTKB IEC Ex (Simtars Australia)
RTKB – 2 RTKB – 1
Features include
•Very high impact resistant glass fiber reinforced Thermoplastic – Polyamide
•Good chemical resistance: see data
•Degree of protection IP66
•Easy fit fixing tabs – (speed up installation and cut down frustration) designed for unistrut, ideal for flat bar, angle irons up to 80mm wide plus large flat surfaces
•3 or 5 entry options – easy to install and easy to terminate
•Enclosure labeling system
SPECIAL NOTE: To minimize the risk of electrostatic discharge, enclosures should not be fitted where they can be subjected to high flow of powder dust that may lead to a prolific charge build up being generated, e.g. pneumatic transfer of powder of discharge spraying. Reference IEC 60079.0:2011 clause 7.4.2. The lid shall have the following warning label applied.
WARNING
Do not open when energized
Potential electrostatic charging hazard
Note: All cable glands and blanking elements e.g. stopping plugs, are separately certified Ex e Ex t as applicable with an ingress protection level of IP66 if fitted as per the manufacturer’s instructions.
IEC Ex
ZONE | 0 | 1 | 2 | 20 | 21 | 22 |
For use in |
| X | X |
| X | X |
ZONE | FLAMMABLE MIXTURE PRESENT |
0 | 1000 hours per year or more (10%) |
1 | Between 10 and 1000 hours per year or more (0.1% to 10%) |
2 | Less than 10 hours per year (0.1% to 0.1%) |
- | Less than 1 hour per year (less than 0.01%) |
SELECTION TABLE
(See Standard Model numbers)
Detail : Rteck terminal boxes are fitted with TS 15 Micro rail terminals
Weidmuller AKZ4 and AKZ1.5 are standard
AKZ4 – 4mm terminal AKZ1.5 – 1.5mm terminal
•Non standard rail options fitted up at customers request as per applicable terminal certification matrix
•Cable glands can be supplied: see Rteck PDF files
•A device fuse option available ≤ 4 amp max (T6) – takes up the space x 3 terminals
Rteck code F - example RTKBF-1
Rteck RTKB-1 Rteck standard terminal box with 3 x 20mm entries
Rteck RTKB-2 Rteck standard terminal box with 3 x 20mm entries plus 2 x 25mm entries with 1 x 25 to 20mm reducer supplied re the 4 x 20mm entry if required.
IMPORTANT : SEE MATRIX with maximum number of terminals withconductor cross section and current reduction of the terminals.
RTKB-1 Rteck standard terminal box with 3 x 20mm entries
Option (1) AKZ4 X 7 terminals plus 2 x earth terminals
RTKB-1-W4-C2 AKZ4 X 4 terminals fitted with 2 x cross connects ( looping / link bars)
Option (2) plus partion plus 2 x earth terminals. Ideal for small lighting and power.
RTKB-1-W1.5-12 AKZ1.5 x 12 terminals plus 2 x earth terminals
Option (3) Ideal for small instrumentation and controls.
RTKB-2 Rteck standard terminal box with 3 x 20mm entries plus 2 x 25mm entries
Option (1) 1 x 25 to 20mm reducer supplied re the 4 x 20mm entry if required.
AKZ4 X 7 terminals plus x 2 earth terminals.
RTKB-2-W4-C2 AKZ4 X 4 terminals fitted with 2 x cross connects (looping / link bars)
Option (2) plus partition plus 2 x earth terminals. Ideal for small lighting and power
RTKB-2-W1.5-12 AK1.5 X 12 terminals plus 2 x earth terminals.
Option (3) Ideal small instrumentation and controls
NOTE : Different rail options will be fitted up at customers request on order.
Fuse option RTKBF-1 / RTKBF-2 available on order
Fuse takes up the space of x 3 terminals
All terminal boxes are supplied standard with the locknuts and stopping Bungs.
Only one terminal box size option available at this stage.
117mm x 117mm x 65mm. Models RTKB-1/2
EXPLOSION PROTECTION:
Explosion protection
Global (IECEx )
Gas and Dust IEC Ex
Ex e IIC T6 Gb IP66
Ex em IIC T6 Gb IP66
Ex tb IIIC T80ºC Db IP66
TECHNICAL DATA:
ELECTRICAL DATA
Rated operating voltage
Terminal boxes RTKB-1 > RTKB-2 without equipment fuse
max 500V AC /DC Depending on terminals used.
Terminal boxes RTKBF-1 /2 with equipment fuse max 500V
AC/ DC Depending on terminals used.
MATRIX:
RTKB enclosure configuration Tables:
Encl Power dissipation (W) | Term Rt AKZ1.5 (Ω) | Rc – 1.5mm2 Cable Ω/m | Term Rt AKZ4.0 (Ω) | Rc – 4mm2 Cable Ω/m | Cable length “L” (m) |
5 | 0.00041 | 0.0165 | 0.00029 | 0.00561 | 0.13 |
Terminal resistance values specified as per certificate IECEx SIR 05.0038U
Cable resistance values specified as per Table 34 of AS/NZS 3008.1.1:2009
Formula applied for calculation of power (pwr) per terminal + cable is P = I2 (Rt + L x Rc)
Table 1: Model and Temperature Classification
| Applied max Current (Amps) | Power per AKZ 1.5 Terminal + cable | Power per AKZ 4.0 Terminal + cable |
1 | 0.002555 | 0.0010193 |
3 | 0.022995 | 0.0091737 |
4 | 0.04088 | 0.0163088 |
6 | 0.09198 | 0.0366948 |
8 | 0.16352 | 0.0652352 |
10 | 0.2555 | 0.10193 |
12 | 0.1467792 | |
14 | 0.1997828 | |
16 | 0.2609408 | |
18 | 0.3302532 | |
20 | 0.40772 | |
22 | 0.4933412 | |
Calculated total maximum power dissipation for enclosure = the sum of the individual calculated power for each terminal and cable combination. Note: Total combined power dissipation not to exceed 5W. | ||
| Table 2: Maximum Enclosure Configuration | |||||
Maximum enclosure configuration & respective current values | |||||
Applied max | Maximum number | Fuse | |||
AKZ 1.5 | AKZ 4 | AKZ 1.5 | AKZ 4 | ||
10 | 22 | 6 | 7 | 1 | |
10 | 22 | 12 | 3 | 1 | |
10 | 20 | 9 | 6 | 1 | |
10 | 20 | 12 | 4 | 1 | |
9 | |||||