Modular, flush and internal panel
mount version, with or without flag
indicator, configurable prealarm
indication and fail safe operation
Versions with automatic toroid
connection control
Choice of supply voltage ranges
Adjustable fault current IDn
Adjustment and choice of tripping
range for both fault current and
delay time.
SEC.-PAGE
Earth leakage relays
With 1 operation threshold ....................................................................................................................................... 16 - 2
With 2 operation thresholds ..................................................................................................................................... 16 - 3
Toroidal current transformers .................................................................................................................................. 16 - 3
External multiplier .................................................................................................................................................... 16 - 3
Dimensions ............................................................................................................ 16 - 4
Wiring diagrams ...................................................................................................... 16 - 5
Technical characteristics ............................................................................................ 16 - 6
Earth leakage relays
16
16
FLUSH-MOUNT VERSION
R1D type
• 1 operation threshold
• External toroidal transformer
• Adjustable tripping In and delay time.
Page 16-2
Page 16-3
FLUSH-MOUNT VERSION
R2D type
• 2 operation thresholds
• External toroidal transformer
• Configurable fail safe operation
• Adjustable tripping In and delay time.
R3D type
• 2 operation thresholds
• External toroidal transformer
• Configurable fail safe operation
• Flag indicator
• Adjustable tripping In and delay time.
MODULAR VERSION
RM1 type
• 1 operation threshold
• External toroidal transformer
• Fixed tripping In and delay time.
RM type
• 1 operation threshold
• External toroidal transformer
• Adjustable tripping In and delay time.
Page 16-2
MODULAR VERSION
RMT type
• 1 operation threshold
• Incorporated toroidal transformer
• Adjustable tripping In and delay time.
Page 16-2
TOROIDAL CURRENT TRANSFORMERS
RT type
• Solid core
• 35mm to 210mm diameter.
RTA type
• Split core
• 110mm and 210mm diameter.
Page 16-3
EXTERNAL MULTIPLIER
RX10 type
• 10-fold multiplier.
Page 16-3
Page 16-3
FLUSH-MOUNT VERSION
R4D type
• 2 operation thresholds
• External toroidal transformer
• Configurable fail safe operation
• Fault current measurement
• Digital display
• Flag indicator
• Shunt tripping circuit
• Adjustable tripping In and delay time.
COMPACT INTERNAL PANEL VERSION
RC type
• 1 operation threshold
• Incorporated toroidal transformer
• Adjustable tripping In and delay time
• 35mm to 110mm diameter.
Page 16-2