Time Mark 358, 388 Data Sheet

TIME MARK is a division of

MODEL 358

MODEL 388

Recycle Timers

“On Time First”

⚫ Most Common Voltage &
Timing Ranges

⚫ Cycles Load on/off, or
Between Two Loads

⚫ On Time First (before Off time)

⚫ 5-Year Unconditional Warranty

DESCRIPTION

The Models 358 and 388 Recycle Timers (“On” Time
First) are designed to cycle a load on and off, or to cycle
between two loads. The ON and OFF cycles are
independently adjustable on each model. The Model 358

is a DPDT potentiometer (knob-adjust) timer. The Model
388 is a DPDT, high-accuracy digital input timer. Solid-

state circuits in each model drive an internal
electromechanical relay.

Each model is functionally interchangeable. They are
available in a wide variety of voltage and timing ranges, to

cover the majority of application requirements.

An “SG” version of this model is available using silver with

gold flash contacts.

Models 358 and 388 are UL Recognized and CSA

Certified.

UL SPECIFICATIONS*

Models 358 and 388

Input

Voltage (VAC)
Power 3 Watts Max

Output

10-28V AC/DC OR 40-260V AC/DC

240V AC, 10A, Resistive
120V AC, 4A, General Use
240V AC, 2A, General Use

C300, Pilot Duty

SPECIFICATIONS

MODEL 358 (knob adj.) 388 (digital)

Voltage L = 10-28V AC/DC

Timing range 10SEC: 1 - 10 Sec.

Accuracy ± 5% ± 2%
Repeatability ± 2% ± 0.1%

Recycle time 100ms

Operating temp -20°F to +140°F
Contacts DPDT
Contact rating 10A at 240VAC resistive

Transient protection 775V, 80 Joules
Humidity tolerance 0 - 97% w/o condensation
Enclosure material NORYL Plastic
Mounting 8-pin socket**
Weight 5 oz.
Agency approvals* UL Recognized and CSA Certified

Additional Options /C = Custom (Voltage and/or Timing)

Ordering Examples (Model-Voltage-Timing Range [/Options]):
388-H-0.1SEC = Model 388 with a 40-260V AC/DC voltage range

and a timing range of 0.1-102.3 seconds.
358-L-180SEC /SG = Model 358 with a 10-28V AC/DC voltage
range, a timing range of 1-180 seconds, and optional silver with gold
flash contacts.

Contact Time Mark to order a custom programmed unit

60SEC: 1 - 60 Sec.
180SEC: 1 - 180 Sec.
300SEC: 1 - 300 Sec.

H = 40-260V AC/DC

0.1SEC: 0.1 - 102.3 Sec.
1SEC: 1 - 1023 Sec.
1MIN: 1 - 1023 Min.
1HR: 1 - 1023 Hrs.

/SG = Silver with Gold Flash Contacts

** order 8-pin socket number 51X120

* Pilot Duty:
120V: Make 15A, Break 1.5A
240V: Make 7.5A, Break 0.75A

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© 2020 TIME MARK CORPORATION

MODEL 358 / 388

TIME MARK is a division of

Recycle Timers

READ ALL INSTRUCTIONS BEFORE INSTALLING, OPERATING OR SERVICING THIS DEVICE.

KEEP THIS DATA SHEET FOR FUTURE REFERENCE.

GENERAL SAFETY

POTENTIALLY HAZARDOUS VOLTAGES ARE PRESENT AT THE TERMINALS OF THE MODEL 358 OR 388.

ALL ELECTRICAL POWER SHOULD BE REMOVED WHEN CONNECTING OR DISCONNECTING WIRING.

THIS DEVICE SHOULD BE INSTALLED AND SERVICED BY QUALIFIED PERSONNEL.

Installation Instructions

OPERATION

When power is applied to the coil, the relay will energize
immediately and stay on for the time set for the “ON” time.

When the “ON” time elapses, the relay will de-energize and

will time for the “OFF” time. At the end of the “OFF” time, the
relay will energize again and run for the “ON” time setting.
This will continue as long as power is applied to the coil. If

power is removed, the relay will de-energize immediately, or
remain de-energized depending on what part of the cycle is
active when power is removed. Re-applying power will

energize the relay immediately and stay energized for the

“ON” time. Timing will continue as above with the “OFF” time.

“ON” time switch controls the Normally Open contacts timing.
“OFF” time switch will control the Normally Closed contacts

timing.

PIN CONNECTIONS

The Models 358 and 388 Recycle Timers require a

standard 8-pin socket for mounting, and use a standard

pin configuration. Refer to the pin diagram below, or on

the timer, for pin connections.

An LED on top of the unit provides a quick visual indicator of

the relay’s status.

LED Indicator Unit Status

Green Energized
Red De-energized
Flashing (Green or Red) Relay is Timing

DIMENSIONS - Model 358

DIMENSIONS - Model 388

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© 2020 TIME MARK CORPORATION