Siemens SITOP

SITOP Add-on Modules

Expansion modules for increasing system availability up to total all-round protection

Siemens SITOP Add-on Modules is a series of Expansion modules for increasing system availability up to total all-round protection. SITOP offers you a unique range of perfectly integrable expansion modules for reliable protection against a wide variety of potential hazards on the primary and secondary side. The SITOP add-on modules allow the completely flexible expansion of SITOP power supply units and extension up to total, all-round protection.

FEATURES

SITOP redundancy module

Highly secure DC supply thanks to a redundant design
Reliable supply even when one power supply fails
Compact redundancy modules for power supply units up to 48 V and 40 A
24-V/NEC Class 2 redundancy module limited to 100 VA
Decoupling of parallel-connected power supply units to enhance performance or of series-connected power supply units to increase voltage

SITOP selectivity module

Protection against overloads and short circuits in the 24-V circuit
Reliable tripping, regardless of the line resistance
SEL1200: switch-off characteristic for standard protection and high starting currents
SEL1400/PSE200U: power limiting to meet high protection requirements by stabilizing the 24 V
Sequential connection reduces total inrush current
Common signaling contact or evaluation of individual channels
SEL1200/1400: 8 outputs, each with diagnostics of voltage, current, set threshold, reason for disconnection (if applicable)
PSE200U: 4 outputs with voltage measuring point for current (1 V ≙ 1 A)

SITOP buffer module

Economical protection against power failure up to the seconds range
Support for the power supply unit when the power demand temporarily increases
High load current up to 40 A
Only two lines connecting to the power supply unit

SITOP inrush current limiters

Maximum service life of current-sensitive components like relays thanks to reduced current inrushes
Space-saving, thanks to narrow width of only 18 mm
Suitable for LOGO! modules and sub-distribution boards, thanks to its stepped profile
Flexible installation on the DIN rail, on the wall or in various other locations
Maximum plant configuration enabled
Flexible application options at temperatures ranging from -40° Celsius to +70° Celsius

ORDERING INFORMATION

Redundancy Modules

Part Number	Article Number	Description
PSU202U, 24 V/10 A	6EP1964-2BA00	SITOP PSE202U 10A Redundancy module Input/output: 24 V DC suitable for decoupling two SITOP power supplies with maximal per 5 A output current
PSE202U NEC Class 2, 24 V/100 W	6EP1962-2BA00	SITOP PSE202U NEC Class 2 Redundancy module Input/output: 24 V DC suitable for decoupling two SITOP power supplies Output power restricted to 100 VA
PSE202U, 24 V/40A	6EP1961-3BA21	SITOP PSE202U Redundancy module Input/output: 24 V DC/40 A suitable for decoupling two SITOP power supplies with maximal per 20 A output current
RED1200, 24/48 V/20 A	6EP4346-7RB00-0AX0	SITOP RED1200 redundancy module Input/output: 24/48 V DC/20 A Suitable for decoupling two SITOP power supplies with max. 10 A output current each
RED1200, 24/48 V/40 A	6EP4347-7RB00-0AX0	SITOP RED1200 redundancy module Input/output: 24/48 V DC/40 A Suitable for decoupling two SITOP power supplies with max. 20 A output current each

Selectivity Modules

Part Number	Article Number	Description
Diagnostic Module, 4x10 A	6EP1961-2BA00	SITOP select Diagnostics module 4-channel input: 24 V DC/40 A output: 24 V DC/4x 10 A Level adjustable 2-10 A
SEL1200 10 A 4x10 A	6EP4437-7FB00-3CX0	SITOP SEL1200 10 A Selectivity module 4-channel with switching characteristic Input: 24 V DC/40 A Output: 24 V DC/4x 10 A Threshold value adjustable 2-10 A With monitoring interface
SEL1200 5 A 8x5 A	6EP4437-7FB00-3DX0	SITOP SEL1200 5 A Selectivity module 8-channel with switching characteristic Input: 24 V DC/40 A Output: 24 V DC/8x 5 A Threshold adjustable 1-5 A With monitoring interface
SEL1200 10 A 8x10 A	6EP4438-7FB00-3DX0	SITOP SEL1200 Selectivity module 8-channel switching characteristic Input: 24 V DC/60 A output: 24 V DC/8 x 10 A Level adjustable 2-10 A with monitoring interface
SEL1400 10 A 4x10 A	6EP4437-7EB00-3CX0	SITOP SEL1400 10 A Selectivity module 4-channel with limiting characteristic Input: 24 V DC/40 A Output: 24 V DC/4x 10 A Threshold value adjustable 2-10 A With monitoring interface
SEL1400 5 A 8x5 A	6EP4437-7EB00-3DX0	SITOP SEL1400 5 A Selectivity module 8-channel with limiting characteristic Input: 24 V DC/40 A Output: 24 V DC/8x 5 A Threshold adjustable 1-5 A With monitoring interface
SEL1400 10 A 8x10 A	6EP4438-7EB00-3DX0	SITOP SEL1400 10 A Selectivity module 8-channel with limiting characteristic Input: 24 V DC/60 A output: 24 V DC/8x 10 A Threshold adjustable 2-10 A with monitoring interface

Buffer Modules

Part Number	Article Number	Description
PSE201U	6EP1961-3BA01	SITOP PSE201U buffer module Buffer time 100 ms to 10 s Depending on load current
BUF1200	6EP4231-7HB00-0AX0	SITOP BUF1200 buffer module Buffer time 300 ms at 40 A Buffer t. depends on load current DC input 24 V

Inrush Current Limiters

Part Number	Article Number	Description
Inrush current limiter	6EP1967-2AA00	SITOP Switch on current limiter Ballast unit for SITOP Power supplies input: 100-480 V AC, 10 A max output: 100-480 V AC, 10 A max
Inrush current limiter LOGO! ICL230	6EP4683-6LB00-0AY0	LOGO! ICL230 Inrush current limiter Input: 100-240 V AC Output: 100-240 V AC/5 A