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Circuit-breakers, switch-disconnectors
Earth-fault release, residual-current relay
2010 CA08103002Z-EN
www.eaton.com17/137
Earth-fault release, residual-current relay
For use with
Part no. suffix
Article no. for
ordering with
basic device
Price
See price
list
Std. pack
Notes
Earth-fault release, 3 pole, 4 pole
Not dependent on mains and control voltages
I
g
= 0.35-0.4-0.5-0.6-0.7-0.8-0.9-1.0 x I
n
t
g
= 0-20-60-100-200-300-500-750-1000 ms
Not UL/CSA approved
NZM4
NS4
+NZM4-XT
266721
1 off
Only suitable for use in conjunction with circuit-
breakers with electronic releases.
Not in combination with motor-protective circuit-
breakers NZM…-ME…
Indication of the earth-fault in optional DMI
communication module.
NZM4-4
+NZM4-4-XT
266722
1 off
Part no.
Article no.
Price
See price
list
Std. pack
Notes
Description
Rated current
Energy Motor
I
n
A
I
n
A
Residual-current relays
Pulsed current sensitive
Rated control voltage: U
s
= 230 V AC (50/60 Hz)
Integrated auxiliary contact (1 C/O)
Ring-type transformer must also be ordered.
Not UL/CSA approved
Rated fault current I
ΔN
= 0.03 A
–
–
PFR-003
285555
1 off
–
Rated fault current I
ΔN
= 0.3 A
–
–
PFR-03
285556
–
Rated fault current I
ΔN
= 0.03-5 A
Adjustable fault current and delay time
Fault current early warning by flashing,
red LED
–
–
PFR-5
285557
Adjustable fault current:
0.03, 0.1, 0.3, 0.5, 1, 3, 5 A
Adjustable delay time:
0.02, 0.1, 0.3, 0.5, 1, 3, 5 A
–
–
–
–
PFR-5-110AC
116963
–
Ring-type transformer
Rated operating voltage: 690 V (50/60 Hz)
Not UL/CSA approved
Internal diameter: 20 mm
50
50
PFR-W-20
285558
1 off
Includes fixing clip for DIN rail
mounting
Internal diameter: 30 mm
150
100
PFR-W-30
285559
Internal diameter: 35 mm
150
100
PFR-W-35
285600
Includes screw fixing
Alternative: fixing clip for DIN
mounting rail
Note on engineering:
The current transformer
diameter must be selected 1.5
times larger than the envelope
diameter of the passed through
conductor.
Internal diameter: 70 mm
400
200
PFR-W-70
285601
Internal diameter: 105 mm
600
250
PFR-W-105
285602
Internal diameter: 140 mm
1200
630
PFR-W-140
285603
Internal diameter: 210 mm
1800
800
PFR-W-210
285604
Magnetic shielding
Not UL/CSA approved
PFR-W-35
–
–
PFR-WMA-35
286001
1 off
Required for load circuits with
high inrush currents
> 4 × I
n
, e.g. motors and
capacitors.
PFR-W-70
–
–
PFR-WMA-70
286002
PFR-W-105
–
–
PFR-WMA-105
286003
PFR-W-140
–
–
PFR-WMA-140
286004
PFR-W-210
–
–
PFR-WMA-210
286005
Mounting clip
For the DIN rail mounting current
transformers PFR-W-35 and larger
–
–
PFR-WC
286006
1 off
1 set = 2 off
NZM3, NZM4, PFR-...
HPL17137EN