PLC for time controller

About the PLC for time controller

The PLC for time controller is part of the ELEHPD Timer range. PLC for time controller - Timer in ELEHPD Electrical Items range. Contact us for specifications and pricing. ELEHPD manufactures and exports low voltage electrical products from Yueqing, Zhejiang, China, supplying distributors, panel builders, M&E contractors and OEM buyers worldwide.

Typical applications

Motor control centres and pump or fan starters
Machine building, conveyors, packaging and CNC equipment
HVAC control panels and building automation
Water treatment, irrigation and pumping stations
Panel retrofits replacing electromechanical control gear

How to specify the right Timer

Size the contact rating for the inductive load, not just the resistive current (AC-3 duty for motors)
Check the coil voltage and frequency available in the panel: 24 V DC, 110 V, 230 V or 400 V AC
Confirm the auxiliary contact count needed for the control and indication circuit
Match the enclosure rating to the environment (IP20 inside a panel, IP65 on the machine)

Specifications

Module for Ringing (PLC)

晶振频率： Frequency	32768Hz	工作电压： Voltage	3V
静态电流： Static Current	7～9uA	高电平驱动电流：High driving Current	2mA
低电平驱动电流：Low Driving Current	2mA	误差： Tolerance	±0.25 second/Day
储存温度： Storing Temperature	-25℃~+70℃	工作温度： Working Temperature	-10℃～+60℃
外型尺寸: Outside Size	57mm×29mm	显示尺寸： Showing Size	17mm×47mm

晶振频率： Frequency	32768Hz	工作电压： Voltage	3V
静态电流： Static Current	7～9uA	误差： Torelance	0.25second/Day
储存温度： Store Temperature	-20℃~+70℃	工作温度： Working Temperature	-15℃～+65℃
可编程数		控制回路数 Control Ways	双回路 Two Ways

晶振频率： Frequency	32768Hz	工作电压： Voltage	3V
静态电流： Static Current	7～9uA	误差： Tolerance	0.25second/day
储存温度： Store Temperature	-20℃~+70℃	工作温度： Working Temperature	-15℃～+65℃
可编程数		控制回路数 Control Ways	双回路 Two Ways

Frequently asked questions about the PLC for time controller

What is the difference between a contactor and a relay?

A contactor is built for switching power circuits repeatedly at high current, often with motor duty ratings (AC-3) and arc-suppressing chambers. A relay switches control signals at low current. In practice: contactor for the motor, relay in the control circuit that drives the contactor coil.

How do I calculate the correct contactor size for a motor?

Use the motor's full-load current, apply the AC-3 rating for the operating voltage, and allow for the number of starts per hour. As a rule of thumb, the contactor's AC-3 rating should be at least equal to the motor FLC, then step up one frame if the duty is heavy.

Do you supply the coil voltage I need?

Coil voltages are specified per order. Send the model number, coil voltage and frequency you require and we will confirm availability and lead time.

Are auxiliary contacts included?

Base models come with the standard auxiliary contact configuration for that frame. Add-on auxiliary blocks and mechanical interlocks can be quoted with the contactor.