Time Delay Relays, R28 Series

Features ±0.1% Repeatability 8-Pin octal base Knob with calibrated scale 3-timing ranges Impact proof dust cover IC hybrid circuitry for timing

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 Characteristics

Contact
Contact Rating: 10 Amps 120 VAC, 30 VDC-8 Amp, 1/2 HP @ 240 VAC, 1/3 HP @ 120 VAC
Life: 500,000 operations @ 120 VAC, 10A resistive
1,000,000 operations @ 120 VAC, 5A resistive
2,000,000 operations @ 120 VAC, 2A resistive
Mechanical Life: 50,000,000 operations

Input
Nominal Input Voltages: See Chart
Steady State Input Current: See Chart

Timing
Timing Adjustment Modes Available:
     0.1 to 10 sec (K-suffix)      1.0 to 180 sec (L-suffix)      2.0 to 300 sec (M-suffix)

Repeat Accuracy
±0.1% - constant voltage & temperature
Percent Timing Range 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: 100mS Max

Protection
Transient: UL508 surge test 5000V for 50mS
Dielectric Breakdown:
     Coil To Contact: 1500 VAC
     Across Open Contact: 1000 VAC
     Noise Immunity: NEMA ICS 2-230 2500 VAC

Environmental Characteristics
Operating: -20°C to +55°C
Storage: -55°C to +85°C

Weight
Std: 4 ozs. (115 grams) - approx

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Dimensional Drawings

D16                                              
Contact Arrangment

DPDT, 2 Form "C"

Timing

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Part Numbers

NTE Type No.	Nom. Volt.	Contact Arr.	Input Cur. Nom.	Max. Contact Cur, @ 28VDC or 120VAC	Diag. No.
AC OPERATED
R28-11A10-120K	120VAC	DPDT	20mA	10A	D16
R28-11A10-120L	120VAC	DPDT	20mA	10A	D16
R28-11A10-120M	120VAC	DPDT	20mA	10A	D16
DC OPERATED
R28-11D10-24K	24VDC	DPDT	40mA	10A	D16
R28-11D10-24L	24VDC	DPDT	40mA	10A	D16

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
	8-Pin Octal	R95-181

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