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Marsh Bellofram
Marsh Bellofram Automatic Timing & Controls Division 400 Series Interval Timer

Marsh Bellofram Automatic Timing & Controls Division 400 Series Interval Timer

Product catalog summary

Specifications
The 400 Series Interval Timer is designed to control an electrical circuit for a set time using a manual setting knob. It features a calibrated dial with time ranges from 1 minute to 24 hours and operates without a clutch for positive setting action. The timer is suitable for various applications, including processing machinery and electric ovens.

Time Ranges
Available in 30, 60 minutes, and 5, 24 hours.

Timing Mode
Interval

Setting Accuracy
Within 0.5% of full scale.

Output
SPDT, 15A, 240 VAC resistive.

Motor Voltages
120 VAC, 240 VAC, 60 Hz.

Display
Dial

Temperature Rating
32° to 120°F (0° to 50°C)

Termination
Rear terminal block-screw.

Mounting
Front panel for the 400 Series.

Weight
1.30 lbs.

Operation
The timer is manually set to the desired time. When the knob is turned from zero, the switch closes, energizing the load. After the set time elapses, the load is de-energized, and the timer stops at zero. An end-of-cycle light or audible signal can be connected to terminal 4. An optional toggle switch allows for more accurate time settings and can turn off the end-of-cycle signal.

Applications
Suitable for controlling electrically operated equipment where accurately timed control is critical, such as in processing machinery, plastic molding, laundry and dry cleaning machinery, electric ovens and furnaces, and photographic equipment.

Dimensions
The dimensions are specified in inches/millimeters, with a basic type open unit model number 4.

Catalog excerpts

Marsh Bellofram Automatic Timing & Controls Division 400 Series Interval Timer-1

Series H W D* WT 400 4-1/2” 2-7/8” 2-1/4” 1-1/4 lbs. *Add 3/4" for knob. 400 Series Automatic Timing & Controls automatictiming.com 800.727.5646 14Interval Timer // 400 Series The pointer is manually set to the desired time. At the instant the knob is turned from zero, the switch MS closes and load A is energized. After the set time has elapsed, the load is de-energized and the timer stops at zero. There is a terminal connection, (terminal 4) load B, for an end of cycle light and/or audible signal. A toggle switch can be furnished as added equipment which allows setting of the time before actuating the load. This provides a means of more accurate time settings. This toggle switch (time start and signal stop) will also turn off the end of cycle signal. APPLICATIONS: Designed to control an electrical circuit for a set time upon operation of the manual setting knob which is directly connected to the switch operating cam. To assure positive setting action, this timer does not set through a clutch. Calibrated dial settings are available in ranges from 1 minute to 24 hours. Designed for control of any electrically operated equipment or operation, such as processing machinery, plastic molding, laundry and dry cleaning machinery, electric ovens and furnaces, photographic equipment, or wherever accurately timed control of electrical operation is critical. I n t e r v a l T i me r M 3 A B 2 MS L1 L2 WIRING Enclosure available \\\SPECIFICATIONS TIME RANGES 30, 60 MIN 5, 24 HR TIMING MODE Interval SETTING ACCURACY Within 0.5% of Full Scale OUTPUT SPDT, 15A, 240 VAC Resistive MOTOR VOLTAGES 120 VAC, 240 VAC, 60 Hz. DISPLAY Dial TEMPERATURE RATING 32° to 120°F (0° to 50°C) TERMINATION Rear Terminal Block-Screw MOUNTING 400 Series: Front Panel WEIGHT 1.30 lbs. \\\ WIRING \\\DIMENSIONS (INCHES/MILLIMETERS) MODEL NUMBER >>>>>> 4 Basic Type: Open Unit 4 06 A Range 0-30 MIN 0-60 MIN 07 0-5 HRS 09 Voltage & Frequency 120 VAC, 60 Hz 240 VAC, 60 Hz C \\\OPERATION

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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