R68 Series - NTE Electronics

Features
•
•
Universal Voltage − Works on Any 208−480V System
Protects Against:
Phase Loss
Phase Reversal
Phase Unbalance (Adjustable 2−10%)
Undervoltage (Adjustable 80−95%)
Overvoltage (Fixed at 110%)
User−Selectable Phase Unbalance and Undervoltage Settings
User−Adjustable Time Delay Drop−Out on Undervoltage
LED Indicates both Normal and Fault Conditions
Compatible with most Wye or Delta Systems
Compact 8−Pin Octal Plug−In Case
•
•
•
•
•
R68 Series
Phase Monitoring, SPDT, 10 Amp,
AC Relay.
D62
3.000
(77.0)
2.900
(74.0)
SPDT, 1 Form “C”
Phase “B”
4
Phase “A”
5
Phase “C”
Manual Reset
3
6
2
7
1
8
2.400 (60.96)
1.770
(44.95)
LED Status Table *
Electrical Specifications
LED Status
Green Steady
Green Flashing
Red Steady
Red Flashing
Amber Steady
Amber Flashing
Green/Red Alternating
Indicator
Normal/Relay ON
Power Up/Restart Delay
Unbalance
Undervoltage/Overvoltage
Reversal
Loss
Undervoltage/Overvoltage
Trip Pending
Red/Amber Alternating
Nominal Voltage Set Error
* Thi table is on the side of all units for easy reference.
Contact
Rating: 10 Amps resistive at 240VAC/30VDC, 1/2 HP at 120/240VAC
Life: 100,000 operations at full load
Mechanical Life: 10,000,000 operations at no load
Input
Nominal Input voltage: See Chart
Steady state input current: See Chart
Operational Characteristics
OPERATION
Phase Monitoring Relays will protect against premature equipment
failure caused by voltage faults on three−phase systems. These
devices protect against unbalanced voltages or single phasing
regardless of any regenerative voltages. The relay is energized when
the phase sequence and all voltages are correct. Any one of four fault
conditions will de−energize the relay. Re−energization is automatic
upon correction of the fault. An LED indicates normal and tripped
conditions.
AC OPERATED
NTE Type No.
Nom.
Voltage
Contact
Arr.
R68−5A10−480
208−480VAC
SPDT
Adjustable
Under
Voltage
Drop−out
Input
Cur.
Nom.
80−95%
nom. vltg.
50mA
Max.
Response Times: . . Power Up: 2 sec. fixed
Restart After Fault: 1−300 sec. adjustable
Drop−Out Due Fault:
Phase Loss & Reversal: 100ms fixed
Phase Unbalanced: 2 sec. fixed
Undervoltage: 0.1 − 20 sec. adjustable
Overvoltage: Fixed Time Based on
Inverse Time Curve
Hysteresis: 2 − 3%
Load (Burden): Less than 3VA
Protection
Indicator LED: See LED Status table
Reset: Automatic upon correction of fault. When a N.C. switch is wired
across the manual reset terminals (Pin5 & Pin6), the unit switches to
manual reset mode and remote manual reset is available.
Environmental Characteristics
Max.
Contact
Cur. @
30VDC
or 240VAC
Diag
No.
10A
D62
Operating: −28°C to +65°C
ACCESSORIES
MOUNTING
STYLES
DESCRIPTION
NTE
TYPE NO.
SURFACE MOUNT
8−PIN OCTAL
R95−101
PANEL MOUNT
8−PIN OCTAL
R95−118
DIN RAIL MOUNT
8−PIN OCTAL
R95−113
74
NTE Electronics, Inc.
Voice (973) 748−5089
FAX (973) 748−6224
http://www.nteinc.com