Block BASIC FIX Catalog Page

Electronic circuit breaker with current
limiting and non-adjustable tripping
currents

BASIC FIX

Typ PM-2824-120-0 PM-2824-180-0 PM-2824-240-0 PM-9824-076-0

Special features

Characteristics - - - For establishing NEC Class 2 circuits

Input

Input rated voltage 24 Vdc 24 Vdc 24 Vdc 24 Vdc

Input voltage range 18 - 30 Vdc 18 - 30 Vdc 18 - 30 Vdc 20 - 28,8 Vdc

Maximal residual ripple of supplied input voltage 3 % 3 % 3 % 3 %

Required input voltage for turning-on of outputs 19.5 V (Turn-off Threshold 18 V) 19.5 V (Turn-off Threshold 18 V) 19.5 V (Turn-off Threshold 18 V) 20 V (Turn-off Threshold 18 V)

Max. total input current 12 A 18 A 24 A 7,6 A

Max. input current for each pole of terminal 40 A 40 A 40 A 40 A

Over voltage protection Suppressor diode 33 V Suppressor diode 33 V Suppressor diode 33 V Suppressor diode 33 V

Stand-by current 32 mA @ 24 V 32 mA @ 24 V 32 mA @ 24 V 32 mA @ 24 V

Power losses in stand-by mode 0.77 W @ 24 V 0.77 W @ 24 V 0.77 W @ 24 V 0.65 W @ 24 V

Output

Output rated voltage 24 Vdc 24 Vdc 24 Vdc 24 Vdc

Output rated current 2 x 6 A 2 x 6 A + 2 x 3 A 4 x 6 A 2 x 3,8 A (NEC Class 2)

Maximum voltage drop between input and output 145 mV @ 2 x 6 A 145 mV @ 18 A 145 mV @ 4 x 6 A 125 mV @ 2 x 3.8 A

Initialization time of module 250 ms 250 ms 250 ms 250 ms

Turn-on delay of outputs Load dependent, min. 50 ms / max. 5 s Load dependent, min. 50 ms / max. 5 s Load dependent, min. 50 ms / max. 5 s Load dependent, min. 50 ms / max. 5 s

Waiting periode after switch-off of an output 500 ms (short circuit) … 10 s (overload) 500 ms (short circuit) … 10 s (overload) 500 ms (short circuit) … 10 s (overload) 500 ms (short circuit) … 10 s (overload)

Max. power losses 2.5 W @ 2 x 6 A 3.6 W @ 18 A 4.3 W @ 4 x 6 A 1.6 W @ 2 x 3.8 A

Efficiency 99.0 % 99.0 % 99.0 % 99.0 %

Internal output fuse 15 A 15 A 15 A 15 A

Resistance to reverse feed max. 35 Vdc 35 Vdc 35 Vdc 35 Vdc

Parallel use of outputs Not allowed Not allowed Not allowed Not allowed

Serial use of outputs Not allowed Not allowed Not allowed Not allowed

Signaling

Status indicator LED (red, green, orange) LED (red, green, orange) LED (red, green, orange) LED (red, green, orange)

Signal input S1 24 Vdc (On/Off/Reset) 24 Vdc (On/Off/Reset) 24 Vdc (On/Off/Reset) 24 Vdc (On/Off/Reset)

Signal output S2 24 Vdc, max. 25mA

(status output channels)

24 Vdc, max. 25mA
(status output channels)

24 Vdc, max. 25mA
(status output channels)

24 Vdc, max. 25mA
(status output channels)

Signal output S3 24 Vdc, max 25mA

(Common signalling output)

24 Vdc, max 25mA
(Common signalling output)

24 Vdc, max 25mA
(Common signalling output)

24 Vdc, max 25mA
(Common signalling output)

Approvals

Approvals cURus, cULus, GL cURus, cULus, GL cURus, cULus, GL cURus, cULus, GL

Environment

Storage temperature -25 °C to +85 °C -25 °C to +85 °C -25 °C to +85 °C -25 °C to +85 °C

Ambient temperature -25 °C to +70 °C -25 °C to +70 °C -25 °C to +70 °C -25 °C to +70 °C

Derating - - - -

Type of cooling Natural convection Natural convection Natural convection Natural convection

Required minimum spacing (left/right) 0 mm 0 mm 0 mm 0 mm

Required minimum spacing (over/under) 40 mm 40 mm 40 mm 40 mm

Safety and protection

Protection index

IP 20 IP 20 IP 20 IP 20

Safety class

III, without PE connection III, without PE connection III, without PE connection III, without PE connection

Degree of pollution 2 2 2 2

Order numbers

Order Number PM-2824-120-0 PM-2824-180-0 PM-2824-240-0 PM-9824-076-0

+

-

Power supplies

Electronic circuit breakers

2

Electronic circuit breaker with current
limiting and non-adjustable tripping
currents

BASIC FIX

StandardsZ

Electronic circuit breaker
UL 508, UL 2367

Safety:
EN 60950-1, EN 50178,
EN/IEC 60204-1

EMC:
EN 61000-6-2, EN 61000-6-3

Safety extra-low voltage (SELV/PELV):
IEC 60364-4-41 (DIN VDE 0100-410)

Subject to change

382

CE acc. to 2004/108/EG (EMC-Directive)

General Data

Nominal input voltage 24 Vdc

Output channels 2 / 4

Fixed tripping current

Active current limiting typ. 1,3 x Irated

Ambient temperature -25 °C to +70 °C

Protection index IP 20

Efficiency typ. 99 %

Advantages

Selective immediate switch off of defective circuits in the event of critical
supply voltage

Sequential and load-dependent switching-on of channels

Comprehensive single-channel-diagnostics and remote switching on/off of
each output channel via 2-wire-interface

Group alarm contact

Applications

If circuits are designed with the same safety values in a number of applications,
the BASIC FIX circuit breakers represent the most economical basis. Different
rated current combinations enable use in a wide range of applications. Each
channel features active current limiting to 1.3 times the fixed preset rated
current. The electronic circuit breaker distributes and monitors the load current
over several current circuits. Overloads and short circuits on an output are
reliably recognized. The electronics permit brief current peaks and switch
longer overloads off. The outputs are activated depending on the time delay
and load to avoid an overload current. If the rated current is exceeded for a
certain amount of time, the output will be switched off automatically and can
be reactivated after a waiting time (thermal relaxation) using the pushbutton
or the remote signal input S1. The pushbutton can also be used to switch the
output manually. It is possible to read out the state of each output using the
three signal contacts. The state of each output is also indicated with a multi­colored LED.

Approvals o J U # Z

UL 2367 (E-File: E356250)UL 508 (E-File: E219022)GL

+

-

1.1

1.2

5.1

1.3

2.1

2.2

3.1

3.2

3.3

5.2

4.0

Power supplies

Electronic circuit breakers

2

Electronic circuit breaker with current
limiting and non-adjustable tripping
currents

BASIC FIX

Typ PM-2824-120-0 PM-2824-180-0 PM-2824-240-0 PM-9824-076-0

Special features

Characteristics - - - For establishing NEC Class 2 circuits

Input

Input rated voltage 24 Vdc 24 Vdc 24 Vdc 24 Vdc

Input voltage range 18 - 30 Vdc 18 - 30 Vdc 18 - 30 Vdc 20 - 28,8 Vdc

Maximal residual ripple of supplied input voltage 3 % 3 % 3 % 3 %

Required input voltage for turning-on of outputs 19.5 V (Turn-off Threshold 18 V) 19.5 V (Turn-off Threshold 18 V) 19.5 V (Turn-off Threshold 18 V) 20 V (Turn-off Threshold 18 V)

Max. total input current 12 A 18 A 24 A 7,6 A

Max. input current for each pole of terminal 40 A 40 A 40 A 40 A

Over voltage protection Suppressor diode 33 V Suppressor diode 33 V Suppressor diode 33 V Suppressor diode 33 V

Stand-by current 32 mA @ 24 V 32 mA @ 24 V 32 mA @ 24 V 32 mA @ 24 V

Power losses in stand-by mode 0.77 W @ 24 V 0.77 W @ 24 V 0.77 W @ 24 V 0.65 W @ 24 V

Output

Output rated voltage 24 Vdc 24 Vdc 24 Vdc 24 Vdc

Output rated current 2 x 6 A 2 x 6 A + 2 x 3 A 4 x 6 A 2 x 3,8 A (NEC Class 2)

Maximum voltage drop between input and output 145 mV @ 2 x 6 A 145 mV @ 18 A 145 mV @ 4 x 6 A 125 mV @ 2 x 3.8 A

Initialization time of module 250 ms 250 ms 250 ms 250 ms

Turn-on delay of outputs Load dependent, min. 50 ms / max. 5 s Load dependent, min. 50 ms / max. 5 s Load dependent, min. 50 ms / max. 5 s Load dependent, min. 50 ms / max. 5 s

Waiting periode after switch-off of an output 500 ms (short circuit) … 10 s (overload) 500 ms (short circuit) … 10 s (overload) 500 ms (short circuit) … 10 s (overload) 500 ms (short circuit) … 10 s (overload)

Max. power losses 2.5 W @ 2 x 6 A 3.6 W @ 18 A 4.3 W @ 4 x 6 A 1.6 W @ 2 x 3.8 A

Efficiency 99.0 % 99.0 % 99.0 % 99.0 %

Internal output fuse 15 A 15 A 15 A 15 A

Resistance to reverse feed max. 35 Vdc 35 Vdc 35 Vdc 35 Vdc

Parallel use of outputs Not allowed Not allowed Not allowed Not allowed

Serial use of outputs Not allowed Not allowed Not allowed Not allowed

Signaling

Status indicator LED (red, green, orange) LED (red, green, orange) LED (red, green, orange) LED (red, green, orange)

Signal input S1 24 Vdc (On/Off/Reset) 24 Vdc (On/Off/Reset) 24 Vdc (On/Off/Reset) 24 Vdc (On/Off/Reset)

Signal output S2 24 Vdc, max. 25mA

Signal output S3 24 Vdc, max 25mA

(status output channels)

(Common signalling output)

Approvals

Approvals cURus, cULus, GL cURus, cULus, GL cURus, cULus, GL cURus, cULus, GL

Environment

Storage temperature -25 °C to +85 °C -25 °C to +85 °C -25 °C to +85 °C -25 °C to +85 °C

Ambient temperature -25 °C to +70 °C -25 °C to +70 °C -25 °C to +70 °C -25 °C to +70 °C

Derating - - - -

Type of cooling Natural convection Natural convection Natural convection Natural convection

Required minimum spacing (left/right) 0 mm 0 mm 0 mm 0 mm

Required minimum spacing (over/under) 40 mm 40 mm 40 mm 40 mm

Safety and protection

Protection index

Safety class

Degree of pollution 2 2 2 2

IP 20 IP 20 IP 20 IP 20

III, without PE connection III, without PE connection III, without PE connection III, without PE connection

Order numbers

Order Number PM-2824-120-0 PM-2824-180-0 PM-2824-240-0 PM-9824-076-0

24 Vdc, max. 25mA
(status output channels)

24 Vdc, max 25mA
(Common signalling output)

24 Vdc, max. 25mA
(status output channels)

24 Vdc, max 25mA
(Common signalling output)

24 Vdc, max. 25mA
(status output channels)

24 Vdc, max 25mA
(Common signalling output)

Subject to change

383