1. Catalogs
  2. Terasaki Electric Circuit Breaker
  3. TZS Series - Earth Leakage Relays

TZS Series - Earth Leakage Relays

TZS Series - Earth Leakage Relays

TZS Series - Earth Leakage Relays

Product catalog summary
Overview: The document provides technical specifications and operational guidelines for the TZS Series Earth Leakage Relays and associated components. It includes details on dimensions, mounting options, standard features, and ratings for various models.
Specifications:
  • Control Voltage: Rated for 120V AC and 240V AC, with a frequency of 50/60Hz.
  • Sensitivity and Operating Time: Rated sensitivity current and operating time are specified, with adjustable settings via a dip switch.
  • Dimensions and Weight: Provided for surface and flush mount types, with specific measurements for each model.
Mounting Options:
  • Available in both surface and flush mount configurations.
Standard Features:
  • Includes earth leakage detection, output contact, indication, and reset functions.
  • Power source requirements and relay ratings are detailed.
Ratings of ZCT (Core Balanced Current Transformers):
  • Specifications for diameter, weight, and applicable wire sizes and currents are provided for different models.
Operational Guidelines:
  • Instructions on terminal connections, test button usage, and LED indicators for normal and leakage conditions.
  • Warnings against incorrect voltage application to prevent burnout.
Performance Charts:
  • Graphs illustrating operating times against percent ground-fault current for various time settings (0.04 sec, 0.3 sec, 0.5 sec, 1 sec, 2 sec).
Installation Notes:
  • Details on drilling plans, mounting plate specifications, and terminal screw tightening torque.
See more

Catalog excerpts

TZS Series - Earth Leakage Relays-1

Ratings of Relays Type_ NOTE ' : Standard, this configuration is used unless otherwise specified. • : “yes” or “available”. q : Terminals for 120V AC and 240V AC are provided. CAUTION : DO NOT APPLY 240V AC TO THE 12OV AC TERMINAL., _BURNOUT CAN RESULT._ For 415V AC or 440V AC, Please contact to TERASAKI. Adjustable type by Dip slide swnch. Operating time range and Non-operating time range. ■ RATINGS Rated control voltage [V AC] 50/60Hz Applicable range 120V AC 240V AC Rated sensitivity current [mA] Rated operating time (sec) Dimensions [mm] (surface mount) W/H/D Weight [kg] (surface mount)_ Surface mount_ Flush mount_ Earth leakage detection_ Output contact_ Earth leakage indication_ Reset function_ Power source required_ Rated operating time (sec) t : Solied-state type, current operating type. ® : Ratings of output contact. U : The output contacts remain until the RESET button is operated. Provided the control power supply fails the contacts automatically reset. Ratings of ZCT (Core Balanced Current Transformers) Type Outside view Diameter of transit part [mm] Applicable numbers, size and continuous current of wires (IV cable wires) max. continuous current max. wire size max.diameter of wire

 Open the catalog to page 1
TZS Series - Earth Leakage Relays-2

Connection Diagram • Earth Leakage RelaySurface mount Type • Earth Leakage Relay Drilling plan 2-M4X0.7 ^TZS-AD-ZCT wire length 30mA: less than 3m, 100, 300mA: less than 5m, 500, 1000mA: less than 10m Note: The output contacts are hold until the reset button is pressed. Loss of control power resets the contacts automatically. Terminal screw tightening torque: 0.45-0.73 N.m (4.6-7.4 kgf.cm) Earth Leakage Trip Characteristic 0.5 sec Flush mount Type Drilling plan

 Open the catalog to page 2
*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.