JZC4 20A 3-Pole Intermediate Auxiliary Contactor JZC4 20A 3-Pole Intermediate Auxiliary Contactor
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JZC4 20A 3-Pole Intermediate Auxiliary Contactor JZC4 20A 3-Pole Intermediate Auxiliary Contactor
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JZC4 20A 3-Pole Intermediate Auxiliary Contactor
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JZC4 20A 3-Pole Intermediate Auxiliary Contactor

Electricity Type:AC or DC
Brand Name:Newtrend or OEM brand
Place of Origin:China
Model Number:JZC4
Phase:3
Main Circuit Rating Current:20A
type:Magnetic contactor
Number of Pole
Main Circuit Rating Voltage
SKU: 60454874153 Category: AC Contactors
  • Description
  • Additional information
  • Technical Datasheet & Downloads
  • Technical FAQ & Selection Guide
Description

Auxiliary Contactor JZC4 CA2 20A 3Pole Contact Intermediate Relay JZC4-04 (CA2-DN04) JZC4-13(CA2-DN13) JZC4-22(CA2-DN22) JZC4-31(CA2-DN31) JZC4-40(CA2-DN40) Contactor type Relay

   

AC COIL: JZC4-04, JZC4-13, JZC4-22, JZC4-31, JZC4-40

DC COIL: JZC4-04Z, JZC4-13Z, JZC4-22Z, JZC4-31, JZC4-40Z

 

The JZC4 auxiliary contactor is a auxiliary suited by controlled circuit whose voltage is 660V,AC 50/60Hz. They control all kinds of magnetic coil and amplify or transfer signal to relative controlled element simultaneously. They are characterized by high performance & long sevice 

 

JZC4 series relay has a double break direct acting type structure with compact design,of which the contact adopts sliding massage contact. Normal open and normal close may have a variety of combinations,and

can install various accessories (auxiliary contact blocks, delay head, mechanical interlocking mechanism, 

etc.) as well as can add many different features.All the live parts are nailed with the protective covers, which 

is safe to use, and can be used for screw mounting and rail mounting is also available.

 

Additional information
Weight 2 kg
Dimensions 25 × 25 × 25 cm
Number of Pole

3

Main Circuit Rating Voltage

380V, 220v, 110v, 24v

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for JZC4 20A 3-Pole Intermediate Auxiliary Contactor.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

AC-1 / AC-3 Duty

How to calculate contactor rating based on motor power and utilization categories (AC-1 vs AC-3 vs AC-4)?

A

AC-3 rating applies to standard squirrel-cage motor starting and stopping during normal run (starting current 5–7x In). For non-inductive or purely resistive heating loads, use the higher AC-1 rating. For severe inching, jogging, and plugging applications (AC-4 duty), derate the contactor or upsize by 1 to 2 frame sizes to prevent contact erosion.

Coil Voltage Selection

How to choose the correct control coil voltage, frequency, and electronic wide-voltage options?

A

Standard AC coils include 24V, 48V, 110V, 220V/230V, 380V at 50/60Hz. For DC control loops or PLC outputs, specify DC coils or electronic wide-range AC/DC coils (e.g. 100V–250V AC/DC) which feature built-in surge suppression, low holding power consumption, and immunity to voltage dips.

Overload Coordination

How to size and coordinate the matching thermal overload relay (TOR) for Type 2 protection?

A

Select a thermal overload relay whose current setting range straddles the motor full-load current (FLA). Set the dial precisely to 1.0x motor nameplate FLA. For IEC 60947-4-1 Type 2 coordination, pair the contactor and relay with backed-up upstream fuses or fast-acting MCB/MCCB to prevent welding under fault conditions.

Auxiliary & Interlocks

What auxiliary contact blocks and mechanical interlocks can be added for motor reversing?

A

Units feature built-in 1NO or 1NC auxiliary contacts, expandable with top-mounted 2-pole or 4-pole auxiliary contact blocks (F4 / AX) and pneumatic timer delay blocks. For forward/reverse motor starters or star-delta starter assemblies, add side-mounted mechanical interlock units (MI) with electrical interlocking.

Ambient & Altitude Derating

How do ambient temperature and installation altitude affect contactor performance?

A

Standard ratings are calibrated for -5°C to +40°C. For ambient temperatures exceeding 55°C or altitudes above 2000m (where reduced air density diminishes heat dissipation and dielectric insulation), derate operational current by 2% per 100m above 2000m and verify insulation voltage limits per IEC standards.

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