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How to wire Pin timers |
 AH3-3 delay timer and base 12-24-120-240 volt off delay timer/ 0-60 minutes Buy: 120 volt AH3-3 at Amazon Resources: How to wire AH3-3 timer How to wire H3CR timer |  ICM 102 on-delay timer 0 Hp Must use contactor 24/ 120-240 volt AC .03-10 minutes Buy: ICM 102 Dayton off delay timers Resource: Use off delay to control motors |  Off-delay timer/ 19-240 volt AC 15-300 seconds Buy Dayton off delay timers Resource: How to wire Dayton off delay timer |  12-24-120-240 volt digital twin timer 1 second to 99 minutes Buy Uxcell DH48S-S twin timer Resource: DH48S twin timer manual Override air conditioner with timer |  12-24-120-240 volt digital off delay/ twin timer or one shot timer .01 second to 99.99 hours Buy: Twin timers at Amazon Sestos twin timer Omron DH48S twin timer Resource: How to wire twin timers How to wire one-shot timers |
 8-pin timer base Showing example SPDT pin timer wiring NC = Normally closed NO = Normally open |
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8-pin
timer wiring/ assumes both power voltage and output voltage are same Illustration shows typical 120Volt wiring.. Hot and Neutral connect to 2 and 7. Install jumper wire between 7 and 8 to put 120V to timer relay. When timer receives no power on terminals 7 and 2, then timer is OFF, then NC terminal 5 has power. When timer receives power to terminals 7 and 2, then timer is ON, and NO terminal 6 has power, and terminal 5 has no power. vvvv Complete circuit with neutrals at terminal 2 To use other terminals: Add jumper wire between 7 and 1 (or 8 and 1) Then connect load to terminals 4 or 3, with neutral connecting to terminal 2 How to wire AH3 timer How to wire H3CR timer |
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10
or
11-pin
timer wiring Each terminal is independent Wiring shows on side of timer. Illustration shows typical 120Volt wiring.. Hot and Neutral connect to A and B. Install jumper wire between A and 7 to put 120V to timer relay. When timer is OFF, then NC terminal 1 has power. When timer is ON, then NO terminal 4 has power, and terminal 1 has no power. Complete circuit with neutrals at terminal B To use other terminals: Add jumper wire between A and 9 (or 7 and 9) |
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As
general rule, Input voltage will connect to terminals 2 and 10 Once power is applied to terminals 2 and 10, the other terminals should have no voltage, and show no continuity with Input terminals. Always use multi-meter to check which terminals have continuity. Set multi meter to read Ohms, and test each terminal to other terminals. Terminals 1 and 11 are Com terminals. Since these terminals are 'dry' and have no power, a different voltage from Input voltage can be controlled. Or jumper between input terminals and Com terminals to apply power to the Com terminals. Terminals 9 and 3 are NC normally closed output, and will have continuity with Com terminals when timer is OFF Terminals 4 and 8 are NO normally open output, and will have continuity with Com terminals when timer is ON. Terminals 5 6 7 are another set of Com => NO NC terminals. Terminal 5 is another dry Com terminal. Terminal 7 is NC terminal. Terminal 6 will be NO terminal. Test contunity with multimeter H5CX sell sheet + wiring + instructions H5 and H3 product sell sheet JS and HD series timers Buy: H5CX digital timer at Amazon H3CR analog timers at Amazon |
 Off
delay/ 120 voltOff delay means the load turns ON immediately, and then load turns off after delay time expires. 3-way switch is convenient Any switch position will start the delay Click switch up starts delay... click switch down starts delay Load turns off after delay period expires Why the 3-way switch diagram works... because the switch is ON full time. When the timer receives power... the load turns ON until delay period expires... but timer is still receiving power. If you temporarily stop power from going to timer, by clicking the 3-way switch to another position, then the timer resets, the light turns ON again until the delay period expires. Load remains OFF until power is stopped and started again. If you use single-pole switch... then the switch must be turned off and then back on to restart delay. If single-pole switch is turned off, then load remains off Buy from my affiliate links 120 volt AH3-3 at Amazon Off-delay relays at Amazon Resources: How to wire AH3 delay timer/ more wiring diagrams |
 Operate
recirculation system remotely from 1-2-3+ different locationsHow it works: Do NOT connect voltage to bell wire going to push buttons Buy delay timer and base Connect 120volt Hot and Neutral wires to base as illustrated. Buy thermostat or bell wire and connect to push buttons as shown The push buttons receive no voltage or power... do not connect to power source. Plug timer into base. Choose delay time from .05 seconds to 999 seconds Push doorbell button. Activates timer. Timer turns ON and begins countdown. Pump turns ON and runs until countdown stops. Countdown is off-delay. When countdown expires, timer turns OFF, pump turns OFF. Delay timer rated 1/3 Hp.... recirculation pump rated 1/25 Hp Off delay timer for recirculation system Push either button to activate delay timer sequence Another wiring example using push button -or- ST01 programmable timer to start delay Buy project materials: Example 50' thermostat bell wire at Amazon 6A855 Solid State timer at Amazon 11-pin plug-in base at Amazon Push button plate Amazon Intermatic ST01c timer ST01a almond Intermatic ST01K combination timer Resource: Other countdown timers More off delay and pin timer illustrations 6A855 Manual |
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Example Reset: Connect
terminals 3 and 7. Timer resets. Disconnect 3 and 7, and timer starts
new. Example pause: connect terminals 3 and 4. Do not apply power to terminals 3-4-5-6-7. Power is applied to terminals 2 and 10. When the reset is applied, power flows from between terminals 3 and 7. Resource: H3CA manual |
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solid state timer
wiring Inputs are from transistors Resource: H3CA manual |
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Pay attention to amp rating on timer Compare amp rating on circuit breaker with amp rating on timer. See wire size charts Protect timer with Busman fuseholders installed in-line. See fuseholders Use timer to control contactor instead of directly wired to Load. See basic contactors |
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Power
connects to terminals A1 and A2 Jumper power from A1 to COM terminals 12 and 25 Output terminals: -NO (normally open= receive power when timer OFF) -NC (normally closed= receive power when timer ON) Relay is DPDT, double throw relay controls 2 contacts (double pole contacts) |
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This applies to off delay circuit that runs a fan for several minutes after boiler turns off. For this specific application: When boiler is ON, the fan is ON. When boiler turns OFF, the circuit is toggled to the delay timer through a relay. The sequence of operation shown on illustration to the left applies to the delay timer. The delay timer keeps fan running ON. When delay period ends, fan turns OFF and remains OFF until boiler turns ON again. Resource: Add a fan to a boiler |
 | This applies to a twin timer. When power is applied to twin timer, the repeat cycle begins. Load 1 is ON for duration of T1 time setting. After T1 expires, Load 1 turns OFF, and Load 2 is ON for duration of T2 time setting When power to timer is turned OFF, the repeat cycle stops for minimum a second. When power is turned ON again, the repeat cycle resumes at T1 The twin timer has a reset option, same as many types of pin timers. A timer with reset function can remain connected to power continuously, and controlled by the reset circuit. When reset circuit is turned ON by connecting two termials, the repeat cycle stops for minimum .02 seconds. When reset circuit is turned OFF, the time circuit resumes at T1. Resources How to wire twin timer Use twin timer to override thermostat |
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Many
timers and timer
bases mount to DIN rail Typical Din Rail timers: How to wire Din Rail timers Several brands Din rail timers Intermatic Din Rail timers Tork Din Rail series Hagar Din Rail series |
 Contactors/ relays |
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