The AC and pulsed DC sensitive residual current monitor RCM420-D (Type A) from Bender is designed for fault and residual current monitoring in earthed power supply systems (TN and TT systems) where an alarm is to be activated in the event of a fault, but disconnection must be prevented. In addition, the device can be used to monitor single conductors, such as PE conductors, N-PE connections and PE-PAS connections.
The prewarning stage (50…100 % of the set response value IΔn2) allow to distinguish between prewarning and alarm. Since the values are measured with measuring current transformers, the device is nearly independent of the load current and the nominal voltage of the system.
The AC and pulsed DC sensitive residual current monitor RCM420-D (Type A) from Bender is designed for fault and residual current monitoring in earthed power supply systems (TN and TT systems) where an alarm is to be activated in the event of a fault, but disconnection must be prevented. In addition, the device can be used to monitor single conductors, such as PE conductors, N-PE connections and PE-PAS connections.
The prewarning stage (50…100 % of the set response value IΔn2) allow to distinguish between prewarning and alarm. Since the values are measured with measuring current transformers, the device is nearly independent of the load current and the nominal voltage of the system.
Type | Response range IΔn | Frequency range | Supply voltage US* | Art. No. |
---|---|---|---|---|
RCM420-D-1 | 10 mA…10 A | 42…2000 Hz | DC 9,6…94 V / AC 16…72 V, 42…460 Hz | B74014001 B94014001 |
RCM420-D-2 | 10 mA…10 A | 42…2000 Hz | DC 70…300 V / AC 70…300 V, 42…460 Hz | B74014002 B94014002 |
* Absolute values
**(B7… = push-wire terminal / B9… = screw-type terminal)
External measuring current transformers
Type | Inside diameter (mm) | Art. No. |
---|---|---|
CTAC20 | ø 20 | B98110005 |
CTAC35 | ø 35 | B98110007 |
CTAC60 | ø 60 | B98110017 |
CTAC120 | ø 120 | B98110019 |
CTAC210 | ø 210 | B98110020 |
WR70x175 | 70 x 175 | B98080609 |
WR115x305 | 115 x 305 | B98080610 |
WS20x30 | 20 x 30 | B98080601 |
WS50x80 | 50 x 80 | B98080603 |
WS80x120 | 80 x 120 | B98080606 |
Accessories
Type | Art. No. |
---|---|
Mounting clip for screw mounting (one piece per device) | B98060008 |
Mounting frame XM420 | B990994 |
Category | Name | Size | Language | Timestamp | D-/B-Number |
---|---|---|---|---|---|
Declarations of Conformity | UKCA - RCM42x | 122.4 KB | 2023/02/13 06:25:2013.02.2023 06:25:20 | ||
CE Declarations of conformity | RCM42x | 145.3 KB | 2023/02/02 05:49:3502.02.2023 05:49:35 | ||
Manuals | RCM420 | 2.1 MB | DE | 2023/07/11 07:47:2111.07.2023 07:47:21 | D00057 |
Manuals | RCM420 | 2.1 MB | EN | 2023/07/11 07:47:4111.07.2023 07:47:41 | D00057 |
Manuals | RCM420 | 736.1 KB | ES | 2019/05/13 10:31:5413.05.2019 10:31:54 | D00057 |
Manuals | RCM420 | 747.0 KB | FR | 2019/05/13 10:31:5513.05.2019 10:31:55 | D00057 |
Datasheets | RCM420 | 342.3 KB | DE | 2023/07/31 07:37:3331.07.2023 07:37:33 | D00057 |
Datasheets | RCM420 | 336.3 KB | EN | 2023/07/31 07:38:0831.07.2023 07:38:08 | D00057 |
Datasheets | RCM420 | 339.1 KB | ES | 2023/07/31 07:38:4031.07.2023 07:38:40 | D00057 |
Datasheets | RCM420 | 497.1 KB | ZH | 2019/05/13 10:31:3313.05.2019 10:31:33 | D00057 |
Datasheets | XM420-Schnittstellenoptionen | 264.1 KB | DE | 2019/05/13 10:31:3513.05.2019 10:31:35 | |
Datasheets | XM420 interface options | 223.5 KB | EN | 2019/05/13 10:31:3613.05.2019 10:31:36 | D00051 |
Quickstarts | RCM420 | 512.0 KB | DE | 2023/07/11 07:48:0011.07.2023 07:48:00 | D00057 |
Quickstarts | RCM420 | 512.0 KB | EN | 2023/07/11 07:48:0011.07.2023 07:48:00 | D00057 |
Technical information | Changed variants of relays from goldplated to silver-plated contacts | 166.3 KB | EN | 2022/06/27 09:03:0827.06.2022 09:03:08 | |
Technical information | Geänderte Relaisvarianten von vergoldeten Kontakten auf versilberte Kontakte | 166.3 KB | DE | 2022/06/27 09:03:0827.06.2022 09:03:08 |