Residual Current Devices
| Product Overview |
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Residual Current Devices
The Bulletin 1492-RCD line includes Residual Current Devices, also known as Residual Current Circuit Breakers, for detecting and interrupting leakage current to ground. By detecting small leakage currents and disconnecting all ungrounded connectors quickly, RCDs can prevent injury to exposed personnel and damage to equipment.
RCDs are used in series with miniature circuit breakers for additional circuit protection from not only overload and short circuit, but also ground fault. Many short circuits begin as undetected ground faults. Using an RCD in an application may detect problems before costly equipment damage and downtime occurs.
These devices are Type A Residual Current Devices to IEC Standards.
Features
- Provides protection against current leakage to ground (earth) caused by an insulation loss between a live conductor and an exposed conductive part (such as an abraded wire, or a grounded person touching the live conductor)
- Suitable for protection against AC and pulsating DC (rectified AC) earth leakage current
- 30 mA sensitivity devices for personnel protection (consult local requirements)
- 100, 300 and 500 mA sensitivity devices for equipment protection
- Dual terminals allow a more secure connection of two wires, or both a wire and bus bar
- Reversible line and load connections
Standards Compliance
- UL 1053
- ANSI/NFPA 70
- IEC/EN 61008
- CSA C22.2 No.144
- GB 16916
Certifications
- cURus Recognized, File E53935
- CE Marked
- CCC Certified
- VDE Certified
- RoHS Compliant
Catalog Number Explanation
Note:Examples given in this section are for reference purposes. This basic explanation should not be used for product selection; some combinations may not produce a valid catalog number.
| 1492 | - | RCDA | 2 | A | 25 | |||||
| a | b | c | d | e |
| a | |
| Type | |
| Code | Description |
| RCDA | Residual Current Device, Type A |
| b | |
| Poles | |
| Code | Description |
| 2 | 2-Pole |
| 4 | 4-Pole |
| c | |
| Sensitivity I∆n | |
| Code | Rated Sensitivity [mA] |
| A | 30 |
| B | 100 |
| C | 300 |
| D | 500 |
| d | |
| Rated Current (In) | |
| Code | Current [A] |
| 25 | 25 |
| 40 | 40 |
| 63 | 63 |
| 80 | 80 |
| e | |
| Delay Option (available on select 4-pole devices) | |
| Code | Description |
| Can be left blank | |
| S | With Delay |
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| Sensitivity (mA) | Rated Current (A) | 2-Pole (1-Pole + Neutral) | 4-Pole (3-Pole + Neutral) | |
| Standard | With Delay | |||
| 30 | 25 | 1492-RCDA2A25 | 1492-RCDA4A25 | — |
| 40 | 1492-RCDA2A40 | 1492-RCDA4A40 | — | |
| 63 | — | 1492-RCDA4A63 | — | |
| 80 | — | 1492-RCDA4A80 | — | |
| 100 | 25 | 1492-RCDA2B25 | 1492-RCDA4B25 | — |
| 40 | 1492-RCDA2B40 | 1492-RCDA4B40 | 1492-RCDA4B40S | |
| 63 | — | 1492-RCDA4B63 | 1492-RCDA4B63S | |
| 300 | 25 | 1492-RCDA2C25 | 1492-RCDA4C25 | — |
| 40 | 1492-RCDA2C40 | 1492-RCDA4C40 | 1492-RCDA4C40S | |
| 63 | — | 1492-RCDA4C63 | 1492-RCDA4C63S | |
| 80 | — | 1492-RCDA4C80 | — | |
| 500 | 25 | — | 1492-RCDA4D25 | — |
| 40 | — | 1492-RCDA4D40 | — | |
| 63 | — | 1492-RCDA4D63 | — | |
| 80 | — | 1492-RCDA4D80 | — | |
| Diagram |
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Accessories
| Right Mount | |||||||
| Photo | Product Description ‡ ⋆ ∆ |
Contacts | Standards | Certifications | UL/CSA Max. Current/Voltage |
IEC Ratings Current/Voltage |
Cat. No. |
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Auxiliary/Signal Contact | 1 N.O./N.C. (1 C.O.) |
UL 1077 CSA 22.2 No. 235 EN 60947-5-1 GB 14048.5 |
UL Recognized CSA Certified CE Marked VDE Certified CCC Certified |
1 A @ 480V AC 2 A @ 277V AC 1.5 A @ 125V DC 2 A @ 60V DC 4 A @ 24V DC |
2 A @ 230V (AC-14) 1 A @ 400V (AC-14) 1.5 A @ 110V (DC-12) 1 A @ 220V (DC-12) 4 A @ 24V (DC-13) 2 A @ 60V (DC-13) |
189-ASCR3 |
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Auxiliary Contact | 1 N.O./N.C. (1 C.O.) |
UL 1077 CSA 22.2 No. 235 EN 60947-5-1 GB 14048.5 |
UL Recognized CSA Certified CE Marked VDE Certified CCC Certified |
1 A @ 480V AC 2 A @ 277V AC 1.5 A @ 125V DC 2 A @ 60V DC 4 A @ 24V DC |
2 A @ 230V (AC-14) 1 A @ 400V (AC-14) 1.5 A @ 110V (DC-12) 1 A @ 220V (DC-12) 4 A @ 24V (DC-13) 2 A @ 60V (DC-13) |
189-AR3 |
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1 N.O. + 1 N.C. | UL 1077 CSA 22.2 No. 235 EN 60947-5-1 GB 14048.5 |
UL Recognized CSA Certified CE Marked VDE Certified CCC Certified |
1 A @ 400V AC 2 A @ 230V AC 1 A @ 50V DC 2 A @ 30V DC |
2 A @ 230V (AC-14) 1 A @ 400V (AC-14) 2 A @ 30V (DC-12) 1 A @ 50V (DC-12) 2 A @ 30V (DC-13) 1 A @ 50V (DC-13) |
189-AR11 | |
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2 N.C. | UL 1077 CSA 22.2 No. 235 EN 60947-5-1 GB 14048.5 |
UL Recognized CSA Certified CE Marked VDE Certified CCC Certified |
1 A @ 400V AC 2 A @ 230V AC 1 A @ 50V DC 2 A @ 30V DC |
2 A @ 230V (AC-14) 1 A @ 400V (AC-14) 2 A @ 30V (DC-12) 1 A @ 50V (DC-12) 2 A @ 30V (DC-13) 1 A @ 50V (DC-13) |
189-AR02 | |
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2 N.O. | UL 1077 CSA 22.2 No. 235 EN 60947-5-1 GB 14048.5 |
UL Recognized CSA Certified CE Marked VDE Certified CCC Certified |
1 A @ 400V AC 2 A @ 230V AC 1 A @ 50V DC 2 A @ 30V DC |
2 A @ 230V (AC-14) 1 A @ 400V (AC-14) 2 A @ 30V (DC-12) 1 A @ 50V (DC-12) 2 A @ 30V (DC-13) 1 A @ 50V (DC-13) |
189-AR20 | |
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| ‡ A maximum of one C.O. type signal contact, and one C.O. type auxiliary contact OR two C.O. type auxiliary contacts may be installed per 1492-RCD. | |||||||
| ⋆ A maximum of one 189-AR11, -AR02, or -AR20 auxiliary contact may be installed per 1492-RCD. They may not be combined with C.O. type contacts. | |||||||
| ∆ A maximum of three accessories of any type may be installed per 1492-RCD. The signal contact must be mounted closest to the RCD, then the auxiliary contact(s). For allowed combinations, and installation instructions please contact your local Rockwell Automation sales office or Allen-Bradley distributor. | |||||||
Bus Bars
| 1492-RCD Cuttable Bus Bars | |||
| Description | Pins | Pkg. Qty. | Cat. No. ⋆ |
| 2-Phase MCB to RCD | 4 | 10 | 189-CL204 |
| 4-Phase MCB to RCD | 8 | 10 | 189-CL408 |
| ⋆ These devices are CE Marked, but not certified to any UL, CSA, or other standard. | |||
| 1492-RCD Bus Bar Accessories | ||
| Description | Pkg. Qty. | Cat. No. ⋆ |
| Terminal Power Feed, 6...25 mm2 | 10 | 189-CLT25 |
| Terminal Power Feed, 6...50 mm² | 10 | 189-CLT50 |
| Dedicated Power Feed, 50 mm² | 10 | 189-CLT50D |
| For 2-phase bus bar‡ | 10 | 189-CL3EC |
| For 4-phase bus bar | 10 | 189-CL4EC |
| Protective Shroud for unused pins | 10 | 189-CLPS |
| ⋆ These devices are CE Marked, but not certified to any UL, CSA, or other standard. | ||
| ‡ 189-CL3EC also used for 2- and 3-phase MCB bus bars. | ||
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Approximate Dimensions
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Accessory Approximate Dimensions
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Bus Bar Approximate Dimensions
Note: Dimensions are shown in millimeters (incles). Dimensions are not intended for manufacturing purposes.
2- and 4-Phase Bus Bars for connection to 1492-RCD
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| General Data | |||
| Poles | 2,4 | ||
| Rated currentIn | 25, 40, 63, 80 A | ||
| Rated sensitivity I∆n | 2-pole | 30, 100, 300 mA | |
| 4-pole | 30, 100, 300, 500 mA | ||
| Electrical Ratings | |||
| Rated short-circuit strength | 10 kA with 63 A gG/gL back-up fuse, 10 kA with 80 A gG/gL back-up fuse for 80 A device |
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| Rated operational voltage Ue per IEC/EN | 230/400V AC | ||
| Rated voltage Ue per UL | 480Y/277V AC | ||
| Max. operating voltage of circuit test | 254V AC | ||
| Min. operating voltage of circuit test | 110V | ||
| Rated frequency | 50/60 Hz | ||
| Rated conditional short-circuit | 10 kA (SCPD - fuse gG 100 A) | ||
| Rated residual breaking capacity | 1 kA | ||
| Rated impulse withstand voltage Uimp (1.2/50ms) | 4 kV | ||
| Dielectric test voltage at ind. freq. for 1 min. | 2.5 kV | ||
| Electrical endurance | 10,000 operations | ||
| Mechanical | |||
| Indicator window | Red ON/green OFF | ||
| Protection degree | Housing | IP4X | |
| Terminals | IP2X | ||
| Environmental | |||
| Ambient temperature (with daily average +35 °C) |
-25...+55 °C | ||
| Storage temperature | -40...+70 °C | ||
| Mechanical endurance | 20,000 operations | ||
| Installation | |||
| Terminal type | Dual terminal | ||
| Cross-section of conductors - solid, stranded, flexible (front/back terminal slot) | 25...63 A | mm2 | 25/25 mm2 |
| AWG | 18...4 AWG | ||
| 80 A | mm2 | 35/35 mm2 | |
| AWG | 18…2 AWG | ||
| Cross-section of bus bars (back terminal slot) | 25...63 A | mm2 | 10/10 mm2 |
| 80 A | mm2 | 16/16 mm2 | |
| Tightening torque | 25...63 A | N∙m | 2.8 N∙m |
| in∙lb | 25 in∙lb | ||
| 80 A | N∙m | 4.8 N∙m | |
| in∙lb | 43 in∙lb | ||
| Mounting | DIN Rail EN 60715 (35 mm) with fast clip device | ||
| Supply | Optional | ||
| Approximate Dimensions and Weight | |||
| Dimensions (H x D x W) | 2-pole | 88 x 67 x 35 mm | |
| 4-pole | 88 x 67 x 70 mm | ||
| Weight | 2-pole | 200 g (7.1 oz.) | |
| 4-pole | 350 g (12.3 oz.) | ||
| Combination with Auxiliary Elements | |||
| Auxiliary contact | Yes | ||
| Signal contact | Yes | ||
Power Loss Due to Current
At rated current in Watts
| Power Loss Due to Current | ||
| Rated Current [A] | Power Loss [W] | |
| 2-pole | 4-pole | |
| 25 | 1 | 1.3 |
| 40 | 2.4 | 3.2 |
| 63 | 3.2 | 4.4 |
| 80 | 8.8 | 33.3 |