LINETRAXX® RCMA423

AC/DC 靈敏型剩餘電流監視器 RCMA423 設計用於監控接地電源系統 (TN 和 TT 系統)，用於平滑直流故障電流或剩餘電流連續大於零的地方。這些特殊的負載包含六脈衝整流器或單通道平滑整流器，如變頻器、電池充電器、帶變頻驅動的施工現場設備。也可以監視單相線的電流。

預警階段（設定反應值 I_Δn2 的 50% 至 100%）可區分預警和警報。由於這些值是透過測量比流器來測量的，因此該裝置幾乎不受負載電流和系統額定電壓的影響。

特色

AC/DC sensitive residual current monitor Type B acc. to IEC 62020 and IEC/TR 60755
r.m.s. value measurement (AC+DC)
Two separately adjustable response values 30 mA…3 A
Frequency range 0…2000 Hz
Start-up delay, response delay and delay on release
Digital measured value display via LC display
Measured value memory for operating value
CT connection monitoring
LEDs: Power On, Alarm 1, Alarm 2
Internal/external test/reset button
Two separate alarm relays (one changeover contact each)
N/O or N/C operation and fault memory behaviour selectable
Continuous self monitoring
Multi-functional LC display
Password protection for device settings
Sealable transparent cover
Push-wire terminal (two terminals per connection)
Two-module enclosure (36 mm)

AC/DC sensitive residual current monitoring in earthed two, three or four conductor systems (TN and TT systems)
Monitoring of variable-speed drives, UPS systems, construction site equipment, printing machines, battery systems, laboratory equipment, wood working machines, MF welding systems, furniture industry, medical electrical equipment, etc.
AC/DC sensitive current monitoring of single conductors de-energised under normal conditions (e.g. N and PE conductors)

型號	響應範圍 I_Δn	頻率範圍	電源電壓 U_S*	貨號**
RCMA423-D-1	30 mA…3 A	0…2000 Hz	DC 9,6…94 V / AC 16…72 V, 42…460 Hz	B74043023 B94043023
RCMA423-D-2	30 mA…3 A	0…2000 Hz	DC 70…300 V / AC 70…300 V, 42…460 Hz	B74043025 B94043025

* 絕對值
**(B7… = push-wire terminal / B9… = screw-type terminal)

測量比流器

測量比流器的連接線 – RCMA423-D

配件

型號	貨號
Mounting clip for screw mounting (one piece per device)	B98060008
Mounting frame XM420	B990994