SIEMENS 6EP1437-2BA20 Power Supply Instruction Manual
- June 9, 2024
- SIEMENS
Table of Contents
SIEMENS 6EP1437-2BA20 Power Supply
https://support.industry.siemens.com.
Description
The SITOP power supply is a built-in unit, degree of protection IP20, protection class I. Primary switched-mode power supply for connection to 3-phase AC system (TN, TT system in accordance with IEC 60364-1) with rated voltages of 400 – 500 V, 50 – 60 Hz; 24 V DC output voltage, isolated, short- circuit and no-load proof.
Safety instructions
NOTICE
Appropriate transport, proper storage, mounting, and installation, as well
as careful operation and service, are essential for the error-free, safe and
reliable operation of the device/system. Setup and operation of this
device/system are permitted only if the instructions and warnings of the
associated technical documentation are carefully observed. Only qualified
personnel are allowed to install the device/system and commission it.
Mounting
- Mounted on a standard mounting rail TH35-15 (EN 60715).
- The device should be mounted so that the terminals are at the bottom.
- A clearance of at least 40 mm must be maintained above and below the device (max. cable duct depth 50 mm).
Connecting up
WARNING
Before starting any installation or maintenance work, the main system
switch must be opened and measures are taken to prevent it from being
reclosed. If this instruction is not observed, touching live parts can result
in death or serious injury. It is only permissible to use an insulated
screwdriver when actuating the potentiometer.
When installing the devices, the relevant country-specific regulations must be observed.
Important note:
A fuse, a miniature circuit breaker, or a circuit breaker must be provided at
the input. The supply voltage must be connected according to IEC 60364 and EN
50178.
Use copper cable certified for use at 90 °C.
Design
- AC input
- DC output
- 24 – 28 V potentiometer
- Signaling contact (13, 14)
- Indicator light (24 V OK)
- Mounting rail slider
- Convection (natural convection)
- Clearance above/below
Operating mode
-
Signaling
Green LED: Output voltage > 20 V -
Signaling contact
- Signaling contact (13, 14): Output > 20 V
- Contact rating (SELV (ES1) must be complied with): 30 V DC/1 A
Technical Data
Input variables
Rated input voltage Uin rated:
3 AC 400 – 500 V, 50 – 60 Hz
Voltage range: 3 AC 340 – 550 V
Rated input current Iin rated: 2.0 – 1.7 A
Series-connected 3-ph. coupled miniature circuit breaker, characteristic C: 6
to 16 A, alternatively: 3RV2011-1DA10 circuit breaker, thermal overload
release setting: 3 A, or 3RV2711-1DD10 (UL489-
listed, DIVQ)
Power consumption (active power) at full load: 1055 W
Output variables
Rated output voltage Uout rated: 24 V
Setting range: 24 – 28 V, set using a potentiometer
at the front of the device
Derating at Uout > 24 V: 4 % Iout or 3 °C tamb / V Uout
Rated output current Iout rated: 40 A
120 % Iout rated in the range of -25 … 45 °C; max.
power 120% (1152 W) of rated power
Extra power during switch-on and operation: 60 A
for 5 s (pro min)
Ambient conditions
Temperature in operation: -25 … 70 °C
Derating for temperatures > 60 °C: 3 % Iout rated/K
Humidity (no condensation): 5 – 95 %
Overvoltage category: II to 2000 m
Pollution degree 2
Protective function
Current limiting for permanent overload (> 5 s), re-
sponse value: max. 1.6 × Iout rated
Characteristic of current limitation constantly de- creasing, hiccup mode
below 10 V
Dimensions
Width × height × depth in mm: 145 × 145 × 150
Accessories
Functionality can be expanded using the following supplementary modules – redundancy module, buffer module, selectivity module, or DC UPS.
Disposal guidelines
Packaging and packaging aids can and must always be recycled. The product
itself may not be disposed of by means of domestic refuse.
Service and Support
You can obtain additional information from the home page (https://support.industry.siemens.com).