Solving your relay requirements since 1922
Amperite Co.
567 52nd Street
P.O. Box 329
West New York, NJ 07093
(800) 752-2329
www.Amperite.com
STB Series
Solid State
Triggered
Delay-On-Release
Timers
… 100% solid state circuitry - no
moving parts
… CMOS digital timing circuitry
… Fixed or field adjustable delays from
milliseconds to hours
… 2 amperes continuous load current
(10 amperes available, consult factory)
… UL File # Pending
… CSA File #Pending
Timing Mode:
Power is applied to the relay prior to the timing cycle. Upon application of power to the
trigger input terminal the load is energized. When power is removed from the trigger
terminal the time delay cycle is initiated. At the end of the delay time the load is de-
energized. Reset is accomplished by reapplying power to the trigger input terminal.
Timing Diagram:
Contact Information:
Solid state switching device 1 form A; normally open series connection. Continuous
current rating 2 amperes. Maximum inrush 20 amperes. Voltage drop 2.5 volts RMS or
less @ 2 amperes. (For 10 ampere load current rating consult factory)
Solving your relay requirements since 1922
Amperite Co.
567 52nd Street
P.O. Box 329
West New York, NJ 07093
(800) 752-2329
www.Amperite.com
Timing Specifications:
Timing: factory fixed, or .1 seconds to 100 hours in any of the ranges below. Timing is
set by user supplied resistor or potentiometer. Custom timing available.
Timing ranges:
.1 to 10 seconds
1 to 100 minutes
.2 to 20 seconds
10 to 1000 minutes
1 to 100 seconds
.1 to 10 hours
10 to 1000 seconds
1 to 100 hours
.1 to 10 minutes
Timing tolerance: fixed units +/- 10%
Timing repeatability: 2%
Timing cycle interrupt transfer: none
Outline Dimensions:
AC (60 Hz) and DC Input Voltages & Limits
Nominal
Minimum
Maximum
12V 10V 14V
24V 20V 28V
48V 41V 55V
110V 95V 125V
Solving your relay requirements since 1922
Amperite Co.
567 52nd Street
P.O. Box 329
West New York, NJ 07093
(800) 752-2329
www.Amperite.com
120V 105V 130V
230V 190V 255V
External Resistor Selection:
Wiring Diagram:
Mechanical Information:
Enclosure 2 X 2 X 3/4 inch black plastic, epoxy sealed. Center hole mounting. Four or
six 1/4 inch quick connect male terminals.
Ordering Information:
Solving your relay requirements since 1922
Amperite Co.
567 52nd Street
P.O. Box 329
West New York, NJ 07093
(800) 752-2329
www.Amperite.com
Definition of a part number for the Amperite STB Series Time Delay Relay:
Example:
A: Denotes nominal input voltage. Voltages available: 12V, 24V, 120V & 230V AC;
12V, 24V, 48V & 110V DC. Custom voltages are available.
B: Denotes type of input power required for operation: A = AC - Alternating Current; D
= DC - Direct Current.
C & D: Denotes range of adjustability by using an external resistor or potentiometer,
where C is the minimum timing and D is the maximum timing. Standard timing span is
100:1. For fixed timing units specify a single number.
E: Denotes unit of time delay: S=seconds; M=minutes; H=hours.
F: Denotes Amperite STB Series triggered delay-on-release relay.
Solving Your Relay Requirements Since 1922
