RM22TR33 Technical Data Sheet
New model RM22TR33C
Product: Schneider Harmony RM22TR33, 3-phase voltage monitoring relay Status: Obsolete (Discontinued from 2025-05-16) Function: Phase loss, phase sequence, overvoltage, undervoltage, 3-phase unbalance monitoring Power supply: Self-powered, no separate auxiliary supply required
Item Specification
Rated measurement voltage 380…480 V AC
Supply voltage limit 304…576 V AC
Frequency 50 / 60 Hz (±10%)
Power consumption 15 VA @ 480 V AC, 60 Hz
Measurement type True RMS, max measuring cycle 150 ms
Voltage threshold adjustment 2% ~ 20% of Un
Switching threshold accuracy ±10% of full scale
Fault time delay (Tt) 0.1 ~ 30 s adjustable, ±10% FS
Max reset time 1500 ms
Power-up run delay ≤ 650 ms
Hysteresis 2% fixed
Output contact 2 C/O (2 SPDT)
Nominal contact current 8 A AC
Max switching voltage 250 V AC
Switching capacity 2000 VA
Minimum load 10 mA @ 5 V DC
Electrical durability 100,000 operations
Dielectric strength 2.5 kV AC, 1 min
Mounting DIN rail
Dimension 95 × 22.5 × 82 mm
Net weight 0.09 kg
Protection Transparent lockable cover against tampering
RM22TR31200–240V
RM22TA33380–480V
RM22TA31200–240V
RM22TU23380–480V
RM22TU21200–240V
RM22TG20
Standard IEC 60947-5-1
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