概要

FEATURES

The widespread application of normally open DC contactors is not only reflected in the traditional industrial field, but also extends to emerging fields such as smart homes, the Internet of Things, and electric vehicles. In smart home systems, contactors can be used to control the switches of lighting, air conditioning, and other electrical appliances to improve user convenience and comfort. At electric vehicle charging stations, normally open DC contactors are used to manage the charging process to ensure safety and efficiency. Understanding the diverse applications of normally open DC contactors is an important step for electrical engineers and technicians to improve their professional capabilities and meet future technological challenges.

サヨーンモデルの示唆

SZJ	50A	-D	-□	/□
1	2	3	4	5

1	製品種別
2	定格電流
3	Coil type: D-Single coil structure
4	Mounting bracket type: なし-M Horizontal (default); E1-Level embedded single direction; L(N)-Vertical
5	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 1.34)

SAYOON 製品タイプ	SZJ50A-D
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 etc.
Contact voltage (DC V)	≤60V
Rated load current of contact 48V circuit (A)	50A
Rate load current of contact circuit	≯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)	15ms
Pull-in time (n/o contacts to close)	5ms
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	600A/5ms at 48V DC
Coil power (W)	4-9
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	継続的
Contact material	Ag alloy
Load terminal type	M5 Screw
Coil terminal type	M4 Screw
Testing organization certification	CCC,CE,FCC,RoHS

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 M5 tightening torque (N.m)	2.5より大きいのが適切
Coil lead M4 tightening torque (N.m)	≯1.2 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
International Protection	IP40 (According IEC60947)

Order Instruction

SAYOON 製品タイプ	SZJ50A-D
U.N.W.	173g
U.G.W.	189g
梱包数量.	100PCS
Mounting bracket type	None – M Horizontal (default), E1 Level embedded single direction, L (N) 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 SZJ50A-D/24V 100pcs, indicating the load rated current 50A, without auxiliary contact, default mounting bracket, coil control voltage 24V purchase 100pcs. Special voltage specification products, such as user needs can be special order.