Features
R28 Series
• ± 0.1% Repeatability
• 8−Pin Octal Base
• Knob with Calibrated Scale
• 3−Timing Ranges
DPDT, 10 Amp AC & DC Adjustable
Delay On Operate Time Delay Relays.
• Impact Proof Dust Cover
• IC Hybrid Circuitry for Timing
D16
.242 (6.2)
Alternate Knob Style
.563 (14.3)
DPDT, 2 Form “C”
4
5
3
2
6
2.875
(73.02)
7
1
8
+
INPUT −
2.374 (60.32)
1.750
(44.45)
OPERATION
DELAY ON OPERATE− The delay period begins when input voltage
is applied. At the end of the delay period, the relay will operate and
will not release until input voltage is removed. Reset occurs when
input voltage is reapplied.
Electrical Specifications
Contact
INPUT
ON
VOLTAGE
Rating: 10 Amps 120 VAC, 30 VDC−8 Amp, 1/2 HP @ 240 VAC,
1/3 HP @ 120 VAC
OFF
Life: 500,000 ops @ 120 VAC, 10A resistive
1,000,000 ops @ 120 VAC, 5A resistive
2,000,000 ops @ 120 VAC, 2A resistive
Mechanical Life: 50,000,000 operations
N.O. RELAY
CONTACTS
ON
TIME
OFF
Input
Nominal Input voltage: See Chart
Steady state input current: See Chart
Timing
Timing adjustment modes available:
0.1 to 10 sec (K−suffix)
1.8 to 180 sec (L−suffix)
3.0 to 300 sec (M−suffix)
AC OPERATED
Max.
Contact
Cur. @
Input
Nom.
Voltage
Contact
Arr.
Cur.
28VDC
Diag
No.
NTE Type No.
Repeat Accuracy
Nom.
or 120VAC
± 0.1% − constant voltage & temperature
R28−11A10−120K
R28−11A10−120L
R28−11A10−120M
120VAC
120VAC
120VAC
DPDT
DPDT
DPDT
20mA
20mA
20mA
10A
10A
10A
D16
D16
D16
Percent Timing change over temperature & voltage range:
± 10%
Timing tolerance at high end of range: −0, +40%
Timing tolerance at low end of range: +0, −40%
Reset Time: 100 mS max
DC OPERATED
R28−11D10−24K
R28−11D10−24L
24VDC
DPDT
40mA
10A
10A
D16
D16
Protection
24VDC
DPDT
40mA
Transient: UL508 surge test 5000V for 50 mS
Dielectric Breakdown
Coil To Contact: 1500 VAC
Across Open Contact: 1000 VAC
Noise Immunity: NEMA ICS 2−230
2500 VAC
ACCESSORIES
MOUNTING
STYLES
NTE
DESCRIPTION
8−PIN OCTAL
8−PIN OCTAL
8−PIN OCTAL
8−PIN OCTAL
TYPE NO.
Environmental Characteristics
Operating: −10°C to +55°C
Storage: −55°C to +85°C
SURFACE MOUNT
PANEL MOUNT
R95−101
R95−118
R95−113
R95−181
DIN RAIL MOUNT
DIN RAIL MOUNT
Weight
Std: 4 oz (115 gram) approx.
41
NTE Electronics, Inc. Voice (973) 748−5089 FAX (973) 748−6224 http://www.nteinc.com