About the Photoelectric sensor infrared switch NPN PNP E70
The Photoelectric sensor infrared switch NPN PNP E70 is part of the ELEHPD Photo Sensor range. Photoelectric sensor infrared switch NPN PNP E70 from the ELEHPD Photo Sensor range. 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 Photo Sensor
- 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
photoelectric sensor infrared switch NPN PNP E70 | 外形尺寸
OVERALL DIMENSIONS | |
| 漫
反
射
型
D
i
f
f
u
s
e
T
y
p
e | | 检测距离 Detection distance | 20cm～100cm |
| 直流
10-
10
VDC |
负逻辑
NPN
| 常开NO | E70-3A20NA |
| 常闭NC | E70-3A20NB |
| 一开一闭NO+NC | E70-3A20NC |
| 正逻辑
PNP | 常开NO | E70-3A20PA |
| 交流
90～
250
VAC | 常闭NC | E70-3A20PB |
| 一开一闭NO+NC | E70-3A20PC |
| SCR
可挂硅
ControHable
silicon | 常开NO | |
| 常闭NC | |
| 继电器输出Relay output | |
| 漫
反
射
型
R
e
t
r
o
r
e
f
l
i
c
t
i
v
e | | 检测距离 Detection distance | 2m |
| 直流
10-
10
VDC |
负逻辑
NPN
| 常开NO | E70-3B2NA |
| 常闭NC | E70-3B2NB |
| 一开一闭NO+NC | E70-3B2NC |
| 正逻辑
PNP | 常开NO | E70-3B2PA |
| 交流
90～
250
VAC | 常闭NC | E70-3B2PB |
| 一开一闭NO+NC | E70-3B2PC |
| SCR
可挂硅
ControHable
silicon | 常开NO | |
| 常闭NC | |
| 继电器输出Relay output | |
|
对
射
型
T
r
o
u
g
h
b
e
a
m
| | 检测距离 Detection distance | 5m |
| 直流
10-
10
VDC |
负逻辑
NPN
| 常开NO | E70-3C5NA |
| 常闭NC | E70-3C5NB |
| 一开一闭NO+NC | E70-3C5NC |
| 正逻辑
PNP | 常开NO | E70-3C5PA |
| 交流
90～
250
VAC | 常闭NC | E70-3C5PB |
| 一开一闭NO+NC | E70-3C5PC |
| SCR
可挂硅
ControHable
silicon | 常开NO | |
| 常闭NC | |
| 继电器输出Relay output | |
| 输出电流DC/SCR／继电器Control output | DC:200mA、AC：300mA |
| 消耗电流DC/AC Consumption current | DC<15mA、AC:<10mA |
| 晌应时间DC/AC Response time | Dc<2ms、AC<20ms |
| 指向角Directional angle | 3。-10。 |
| 检测物体Detected object | 透明或不透明体transparent or opaque body |
| 工作环境温度WoJrking envlrOnment temDerature | -25℃～+55℃ |
| 工作环境照度Intensity ofillumination ofworking environment | 太阳光10000LX以下Sunlight underlOOOOLX白炽灯3000LX以下incandescentlamp under 3000LX |
| 外壳材料Shell materia | 塑料Plastic |
| 防护等级Protection grade | IP54 |
Frequently asked questions about the Photoelectric sensor infrared switch NPN PNP E70
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.
Further reading
