6EP4438-7FB00-3DX0 Siemens · SITOP SEL1200 8-channel selectivity module, 24V DC/60A input, 8x2-10A adjustable outputs, DIN rail.
18 W
10
24
In stock
880.83 SR
Redundancy, Selectivity & DC Converter Modules
51 parts
Redundancy, selectivity and DC converter modules from Siemens, with over 50 products that protect 24 V DC supply systems and drive DC motors. The range includes SITOP RED1200 and PSE200U redundancy modules, SEL1200 and SEL1400 selectivity modules, and SINAMICS DCM converters up to 3000 A. Stoklink ships worldwide from Turkey and quotes project volumes on request.
51 parts
Showing 1–48
Part number · product
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6EP4438-7EB00-3DX0 Siemens · Siemens 6EP4438-7EB00-3DX0 SITOP SEL1400, 8-channel selectivity module, 24V DC/60A in, 8x adjustable 2-10A out, IP20.
18 W
10
24
On request
—
1,194.60 SR
6EP4437-7FB00-3DX0 Siemens · Siemens SITOP SEL1200 selectivity module, 6EP4437-7FB00-3DX0, 8x1-5A adjustable, 24V/40A input, IP20.
10 W
40
24
Low stock
820.34 SR
6EP4437-7FB00-3CX0 Siemens · SITOP SEL1200 selectivity module, 4x 2-10A adjustable outputs, 24V DC/40A input, IP20.
10 W
40
24
Low stock
506.57 SR
6EP4437-7EB00-3DX0 Siemens · SITOP SEL1400 selectivity module, 8x 1-5A adjustable outputs, 24V DC/40A input, per-channel overcurrent trip.
10 W
5
24
Low stock
1,137.89 SR
6EP4437-7EB00-3CX0 Siemens · SITOP SEL1400 4-channel selectivity module, 24V DC/40A input, 4x adjustable 2-10A outputs.
10 W
10
24
In stock
672.91 SR
6EP4348-7RB00-0AX0 Siemens · SITOP RED1200 redundancy module, decouples two 24V DC supplies, 80A output, 97.5% efficiency.
46 W
80—
Low stock
1,066.07 SR
6EP4347-7RB00-0AX0 Siemens · Siemens 6EP4347-7RB00-0AX0 SITOP RED1200 redundancy module, 24/48V DC, 2x20A input, 40A combined output.
25 W
40—
In stock
574.62 SR
6EP4346-7RB00-0AX0 Siemens · SITOP RED1200 redundancy module, decouples two 10A supplies into a 24/48V, 20A DC output.
12 W
20—
In stock
400.72 SR
6EP4297-8HB10-0XY0 Siemens · SITOP BUF8600 buffer module for PSU8600, 300ms ride-through at 40A, electrolytic caps
—
40—
On request
—
1,633.12 SR
6EP4297-8HB00-0XY0 Siemens · SITOP BUF8600 buffer module for PSU8600, 100ms ride-through at 40A, electrolytic caps
—
40—
On request
—
964.00 SR
6EP4295-8HB00-0XY0 Siemens · SITOP BUF8600 buffer module for PSU8600, 10s ride-through at 40A, double-layer caps
—
40—
On request
—
3,194.42 SR
6EP4293-8HB00-0XY0 Siemens · SITOP BUF8600 buffer module for PSU8600, 4s ride-through at 40A, double-layer caps
—
40—
On request
—
2,037.62 SR
6EP4231-7HB00-0AX0 Siemens · SITOP BUF1200 buffer module, 24V DC, 300ms at 40A, standalone, no PSU8600 needed
—
40
24
On request
—
1,485.69 SR
6EP3233-0TA00-0AY0 Siemens · SITOP PSU3400 DC/DC converter, 48V in, 24V/5A out, DIN rail, 92% efficiency.
10 W
5—
On request
—
790.10 SR
6EP1964-2BA00 Siemens · SITOP PSE202U redundancy module, decouples two 24V DC supplies into one 10A output, relay fault signal.
3.6 W
10—
On request
—
272.19 SR
6EP1961-3BA21 Siemens · Siemens SITOP PSE202U redundancy module, 24V DC/40A, decouples two SITOP supplies, 96.6% efficiency, IP20, DIN rail.
34 W
40—
In stock
555.71 SR
6EP1961-3BA01 Siemens · SITOP PSE201U buffer module, 24V DC, 40A, 200ms-1.6s bridging time, IP20.
—
40
24
In stock
952.65 SR
6EP1961-2BA61 Siemens · SITOP PSE200U selectivity module, 4x3A NEC Class 2 outputs, 0.5-3A adjustable, per-output status signal.
9 W
12
24
On request
—
574.62 SR
6EP1961-2BA51 Siemens · SITOP PSE200U selectivity module, 4x3A NEC Class 2 outputs, 0.5-3A adjustable, common signal contact.
9 W
12
24
On request
—
574.62 SR
6EP1961-2BA41 Siemens · SITOP PSE200U 4-channel selectivity module, 24V DC/40A in, 4x10A adjustable outputs, IP20.
10 W
10
24
In stock
635.10 SR
6EP1961-2BA31 Siemens · Siemens SITOP PSE200U 4-channel selectivity module, 24V/12A input, 0.5-3A adjustable per output.
9 W
3
24
Low stock
574.62 SR
6EP1961-2BA21 Siemens · Siemens 6EP1961-2BA21 SITOP PSE200U selectivity module, 4x10A outputs, 24V DC, adjustable 3-10A threshold.
10 W
10
24
Low stock
635.10 SR
6EP1961-2BA11 Siemens · Siemens SITOP PSE200U selectivity module, 6EP1961-2BA11, 4x0.5-3A adjustable, 24V/12A input, marine approved.
9 W
12
24
Critical stock
574.62 SR
6EP1961-2BA00 Siemens · Siemens SITOP select selectivity module, 6EP1961-2BA00, 4x2-10A adjustable, 24V/40A input, IP20.
30 W
40
24
In stock
699.37 SR
6RA8098-4DV62-0AA0 Siemens · SINAMICS DCM four-quadrant reversing DC converter, 400V 3AC input, 420V DC / 3000A output, D420/3000 field rectifier.
—
3000
400
On request
—
273,863.70 SR
6RA8098-4DS22-0AA0 Siemens · SINAMICS DCM two-quadrant DC converter, 400V 3AC input, 485V DC / 3000A output, D485/3000 field rectifier.
—
3000
400
On request
—
219,624.58 SR
6RA8095-4DV62-0AA0 Siemens · SINAMICS DCM four-quadrant reversing DC converter, 400V 3AC input, 420V DC / 2000A output, D420/2000 field rectifier.
—
2000
400
On request
—
185,836.45 SR
6RA8095-4DS22-0AA0 Siemens · SINAMICS DCM two-quadrant DC converter, 400V 3AC input, 485V DC / 2000A output, D485/2000 field rectifier.
—
2000
400
On request
—
149,380.20 SR
6RA8093-4DV62-0AA0 Siemens · Siemens SINAMICS DCM four-quadrant DC converter, 400V 3AC 1328A in / 420V DC 1600A out, (B6)A(B6)C bridge.
—
1600
400
On request
—
151,157.82 SR
6RA8093-4DS22-0AA0 Siemens · Siemens SINAMICS DCM two-quadrant DC converter, 400V 3AC 1328A in / 485V DC 1600A out, B6C bridge.
—
1600
400
On request
—
121,815.40 SR
6RA8091-6DV62-0AA0 Siemens · Siemens SINAMICS DCM four-quadrant DC converter, 400V 3AC 996A in / 420V DC 1200A out, (B6)A(B6)C bridge.
—
1200
400
On request
—
120,928.27 SR
6RA8091-6DS22-0AA0 Siemens · Siemens SINAMICS DCM two-quadrant DC converter, 400V 3AC 996A in / 485V DC 1200A out, B6C bridge.
—
1200
400
On request
—
95,141.08 SR
6RA8087-6DV62-0AA0 Siemens · Siemens SINAMICS DCM four-quadrant DC converter, 400V 3AC 706A in / 420V DC 850A out, (B6)A(B6)C bridge.
—
850
400
On request
—
89,804.87 SR
6RA8087-6DS22-0AA0 Siemens · Siemens SINAMICS DCM two-quadrant DC converter, 400V 3AC 706A in / 485V DC 850A out, B6C bridge.
—
850
400
On request
—
71,756.53 SR
6RA8085-6DV62-0AA0 Siemens · Siemens SINAMICS DCM four-quadrant DC converter, 400V 3AC 498A in / 420V DC 600A out, (B6)A(B6)C bridge.
—
600
400
On request
—
69,088.43 SR
6RA8085-6DS22-0AA0 Siemens · Siemens SINAMICS DCM two-quadrant DC converter, 400V 3AC 498A in / 485V DC 600A out, B6C bridge.
—
600
400
On request
—
55,038.88 SR
6RA8081-6DV62-0AA0 Siemens · Siemens SINAMICS DCM 4-quadrant DC converter, 420V DC / 400A output, 400V 3AC / 332A input.
—
400
400
Critical stock
50,236.96 SR
6RA8081-6DS22-0AA0 Siemens · SINAMICS DCM 2-quadrant B6C DC converter, 400V 3AC 332A input, 485V DC 400A output, D485/400 field rectifier.
—
400
400
Critical stock
40,011.47 SR
6RA8078-6DV62-0AA0 Siemens · Siemens SINAMICS DCM four-quadrant DC converter, 400V 3AC 232A in / 420V DC 280A out, (B6)A(B6)C bridge.
—
280
400
On request
—
39,389.81 SR
6RA8078-6DS22-0AA0 Siemens · Siemens SINAMICS DCM two-quadrant DC converter, 400V 3AC 232A in / 485V DC 280A out, B6C bridge.
—
280
400
On request
—
31,832.43 SR
6RA8075-6DV62-0AA0 Siemens · SINAMICS DCM 4-quadrant DC converter, 400V 3AC 174A input, 420V DC 210A output, D420/210 field rectifier.
—
210
400
Critical stock
32,810.28 SR
6RA8075-6DS22-0AA0 Siemens · SINAMICS DCM two-quadrant DC converter, B6C, 400V 3AC 174A in, 485V DC 210A out, 15.0 kg
—
210
400 3AC input – 485 output
Low stock
26,230.75 SR
6RA8031-6DV62-0AA0 Siemens · SINAMICS DCM 4-quadrant DC converter, 400V 3AC input, 420V DC 125A output, D420/125 field rectifier.
—
125
400
On request
—
24,631.23 SR
6RA8031-6DS22-0AA0 Siemens · SINAMICS DCM 2-quadrant DC converter, 400V 3AC input, 485V DC 125A output, D485/125 field rectifier.
—
125
400
On request
—
19,560.49 SR
6RA8028-6DV62-0AA0 Siemens · SINAMICS DCM 4-quadrant DC converter, 400V 3AC 75A input, 420V DC 90A output, D420/90 field rectifier.
—
90
400
Critical stock
21,163.37 SR
6RA8028-6DS22-0AA0 Siemens · SINAMICS DCM two-quadrant DC converter, B6C, 400V 3AC 75A in, 485V DC 90A out, 15.0 kg
—
90
400 3AC input – 485 output
Low stock
17,070.49 SR
6RA8025-6DV62-0AA0 Siemens · SINAMICS DCM 4-quadrant DC converter, 400V 3AC input, 420V DC 60A output, D420/60 field rectifier.
—
60
400
On request
—
18,404.54 SR
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Guide
Redundancy, Selectivity & DC Converter Modules buying guide
What's in this range
- SITOP PSE200U and RED1200 redundancy modules for two parallel supplies.
- SITOP SEL1200 and SEL1400 selectivity modules that isolate a faulty branch.
- SITOP BUF8600 buffer modules and PSU3400 DC/DC converters.
- SINAMICS DCM 2-quadrant and 4-quadrant DC converters.
How to choose
- Redundancy module: match rated current to the supply and the total load.
- Selectivity module: pick the channel count and trip current per channel.
- DC converter: define armature voltage and current, and choose 2-quadrant or 4-quadrant.
FAQ
Redundancy, Selectivity & DC Converter Modules questions
Why use a redundancy module?
It keeps the load running if one supply fails and stops a faulty supply from pulling down the other.
What does a selectivity module do?
It switches off only the faulty 24 V DC branch. The others stay powered.
When is a 4-quadrant DC converter needed?
When the motor must brake or reverse under power control. Otherwise 2-quadrant is enough.