RM4TG20 TELEMECANIQUE, RM4TG20 Datasheet - Page 5

• Manufacturer Part Number: RM4TG20
• Description: PHASE MONITORING RELAY, DPDT-2CO, 484VAC
• Manufacturer: TELEMECANIQUE
• Series: RM4r

Specifications of RM4TG20

• Contact Configuration: DPCO
• Phase Type: 3 Phase
• Supply Voltage Max: 484VAC
• Switching Voltage Max: 440VAC
• Relay Mounting: DIN Rail
• Length/height, External: 78mm
• External Width: 22.5mm
• External Depth: 80mm
• Carry Current: 8A

3
Characteristics :
page 3/34
References :
page 3/35
Dimensions, schemes :
page 3/36
Setting-up :
page 3/37
RM4-JA01
RM4-JA32
3/32
Te
Zelio Control - measurement and control relays
Current measurement relays RM4-JA
Presentation
Functions
These devices are designed to detect when a preset current threshold is exceeded, on a.c. or d.c. supply.
They have a transparent, hinged flap on their front face to prevent any accidental alteration of the settings.
This flap can be directly sealed.
Type of
relay
RM4-JA01
RM4-JA31
RM4-JA32
Applications:
- excitation control of d.c. machines,
- control of load state of motors and generators,
- control of current drawn by a 3-phase motor,
- monitoring of heating or lighting circuits,
- control of pump draining (undercurrent),
- control of overtorque (crushers).
- monitoring of electromagnetic brakes or clutches.
Description
RM4-JA01
Width 22.5 mm
1
2
3
4
R Yellow LED: indicates relay state.
U Green LED: indicates that supply to the RM4 is on.
Table showing details for switch 4
Switch
position
< 0
< 1
< 3
< 10
< 30
> 0
> 1
> 3
> 10
> 30
(1) Selection by switch on front face.
(2) Value of current difference between energisation and de-energisation of the output relay (% of the current threshold
to be measured).
R
U
Adjustment of current threshold as % of setting range max. value.
Hysteresis adjustment from 5 to 30 % (2).
Fine adjustment of time delay as % of setting range max. value.
10-position switch combining:
- selection of the timing range: 1 s, 3 s, 10 s, 30 s, no time delay.
- selection of overcurrent (>) or undercurrent (<) detection.
See table below.
1
2
Function
Undercurrent detection
Undercurrent detection
Undercurrent detection
Undercurrent detection
Undercurrent detection
Overcurrent detection
Overcurrent detection
Overcurrent detection
Overcurrent detection
Overcurrent detection
Overcurrent
control
Yes
Yes
Yes
Overcurrent or
undercurrent control (1)
No
Yes
Yes
RM4-JA31
Width 22.5 mm
Time delay
(t)
No time delay
0.05 to 1 s
0.15 to 3 s
0.5 to 10 s
1.5 to 30 s
No time delay
0.05 to 1 s
0.15 to 3 s
0.5 to 10 s
1.5 to 30 s
R
U
1
2
3
4
Measuring
range
3 mA…1 A
3 mA…1 A
0.3 A…15 A
RM4-JA32
Width 45 mm
R
U
1
2
3
4