ATC 425A-300-Q-20-X-X 425A Series 1/16 DIN LED Digital Display Timer

ATC, 425A-300-Q-20-X-X, 425A Series 1/16 DIN LED Digital Display Timer, Delay Relay (DPDT) without Memory, Standard (Time Up)

Features:

• Easy-To-Read High Intensity Green LED Display
• Timing From .01 Sec. to 999 Hrs in One Unit
• Switch Selectable Timing Ranges Are Tamper Proof When Panel Mounted
• Timing LED Indicates Output Relay Status
• Time Preset Can Be Adjusted While Timing
• Passes NEMA Showering Arc Noise Test
• Panel Mounting or 8-pin Octal Plug-in mounting
• Timing Up From the Set Point

Digital Setting

The 425 is set digitally by rotating each setting knob until the desired Time Preset is displayed by the number wheels on the front of the timer. The digital setting allows exact, accurate and repeatable timing cycles.

High Accuracy

The 425 utilizes a crystal controlled oscillator which provides 0.1% timing accuracy across all rated voltages and temperatures.

Cycle Progress Indication

The 425 offers the industry’s brightest green LED display in a 1/16 DIN package. The three-digit LED display will time Up from the Time Preset.

Through its internal micro controller, the 425 keeps track of the time setting by monitoring each of the three Time Preset switches. Whenever a change is made in the time preset, even during a cycle, the 425 instantly re-computes and adjusts the current timing cycle.

1/16 Din Housing

The 48mm2 (1/16 DIN) housing is compact, allowing the 425 to be panel mounted or plug-in using an 8-pin octal socket. The decimal point and SEC/MIN/HRS switches are located on the side of the unit. When panel mounted, these range switches are not accessible to the operator. This Tamper-proof feature prevents unauthorized or hazardous changes to the timing range.

Delayed Relay Version

 425 comes with DPDT delayed contacts.

Timing starts when power is applied to terminals 2 and 7. The LED display begins to increment from 0 and the timing LED blinks slowly. When the preset value is reached, the LED stops, the timing LED blinks rapidly and the Delayed DPDT relay energizes. The timer remains in this timed-out condition until reset by removing power

Caution

Be advised that the relay(s) will transfer when setting knobs are adjusted to 000 when power is applied.

For more information, please see Data Sheet

Technical Details

Model	ON-Delay Time Up
Ranges	Switch Selectable, 0 to 9.99,99.9 or 999 Sec/Min/Hrs
Load Relay
Type	DPDT
Life	10 Million operations (no load)
Contact Rating	5 AMPS Resistive, 1/10 HP at 120 VAC
Temperature Rating	0° to 140°F (-18° to 60°C)
Noise Immunity	Showering ARC per NEMA ICS 2-230, the 425A will withstand a voltage surge of 4500 volts for 50 microseconds without damage
Mounting	8-Pin Octal plug-in base, Panel Mounting Bracket
Power Requirements	120 VAC, 50/60 Hz;(10%,-20%); 5 WATT maximum
Repeat Accuracy	± .1% over rated voltages
Reset Time	100 mSEC minimum
Display
Cycle Progress	3 Digit Green LED Display, seven segment numeric
Timing LED	Red LED blinks slowly (once per second) during timing; blinks rapidly after time out.
Housing	1/16 DIN (48mm x 48mm) Housing
Weight	5 oz. (140 g) Shipping: 1 lb