概要

FEATURES

With the development of smart grid and renewable energy technologies, the application of normally open DC contactors is also expanding. In electric vehicle charging stations and solar power generation systems, they can achieve precise control of current and improve the overall efficiency of the system. Therefore, for electrical engineers and technicians, mastering the working principle and application scenarios of normally open DC contactors is an important part of improving professional capabilities and meeting the challenges of modern electrical systems.

サヨーンモデルの示唆

CZW	300A	-S	-C	-K	-M	-□	/24V
1	2	3	4	5	6	7	8

1	製品種別
2	定格電流
3	Auxiliary switch: None-Without auxiliary switch; S-With auxiliary switch
4	Magnetic blow-out
5	Magetic holding structure: K-Two joint magnetic retention (Single coil, Two joint self-locking); 2K-Three joint magnetic retention (Double coil, Three joint self-locking)
6	Mounting bracket type: M-Horizontal (default); L-One vertical; 2L-Two vertical
7	Other function codes: l-With suppressor diode; R-With pre-charged resistance; CO-Continuous; IN-Intermittent
8	Coil rated voltage: 12V, 24V, 36V, 48V, 60V, 72V etc.

Uses

This product have one normally open contact, for electric vehicles, telecommunication equipment, engineering machinery, car batteries, electric forklift trucks, trains, ships, electronic control systems such as uninterruptible power supply.

Technical Parameters: (Version 1.58)

SAYOON 製品タイプ	CZW300A
お問合せフォーム	1 いいえ
Coil Rated voltage (DC V)	6V,12V,24V,36V,48V,60V,72V,84V,120V,150V,220V etc.
Contact voltage (DC V)	≤80V
Rated load current of contact 48V circuit (DC-1)	300A
100Aあたりの接点における標準的な電圧降下	≯80mV
The cooling pull-in voltage at (20±5)℃ (V)	≯70%
The cooling drop-out voltage at (20±5)℃ (V)	≯35%,≮5%
Working voltage range of 40℃ coil	0.8-1.2Us
Drop-out time (n/o contacts to open)	40ms
Pull-in time (n/o contacts to close)	10ms
Maximum bounce time for contact connection	10ms
Maximum bounce time for contact disconnection	3ms
Insulation resistance	20MΩ
耐電気強度	50Hz/60Hz 1000VAC 1分間
遮断可能な代表的な故障電流	1000A / 5ms（48V/DC）
Coil power (W)	12-18
Temperature rise of coil (K)	≤60
Temperature rise on outgoing terminal (K)	≤65
電気の生活	2万回
機械生命体	300,000 times
仕様書	Continuous (default) or Intermittent
Contact material	Ag alloy
Load terminal type	M8 Screw
Coil terminal type	6.3mm spade terminals
補助接点定格負荷（オプション）	2A/48VDC、5A/24VDC
Testing organization certification	CE,FCC

Note:As regarding to the different using environments of customers which requires different focus of the functions,and in order to improve the comprehensive properties of our products,sayoon may adjust the coil parameters,temperature rise and so on. The above parameters are for reference only, For details, please refer to the guidelines for selection and use of the SAYOON DC contactor.

Load Characteristic Curve

Installation Diagram

Wiring Diagram

Temperature Curve

Mechanical Ability And Use Of The Environment

Contact lead M8 tightening torque (N.m)	≯9.0適切
Coil lead-out torque (N.m)	≯0.8 appropriate
周囲温度	-25〜+70℃
相対湿度	+20℃ 98%
固定位置での振動数	3G、1〜50Hz 振幅0.5mm
脳震盪	(60～100)回/分、加速度≤4g
高度	2000m
取り付け方向	ランダム
国際保護	IP40 (According IEC60947)

Order Instruction

SAYOON 製品タイプ	CZW300A
U.N.W.	740g
梱包数量.	40PCS
Mounting bracket type	M Horizontal (default), 1L One vertical, 2L Two vertical

When ordering, please state the following: name, full model, control coil voltage specification, installation frame type, whether with auxiliary contact, order quantity. For example: DC Contactor CZW300A/24V 100pcs, indicating the load rated current 300A, without auxiliary contact, default mounting bracket, coil control voltage 24V purchase 100pcs. Special voltage specification products, such as user needs can be special order.