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Siemens 5SU1354-1KK20 — Residual Current Breakers (RCCB/RCBO)

Siemens SENTRON 5SU1354-1KK20 RCBO, 20 A C-curve, 10 kA

MPN5SU1354-1KK20

Siemens SENTRON RCBO, 1P+N, 20 A, C-curve, 10 kA (EN 60898) / 20 kA (IEC 60947-2), 36 mm wide, IP20.

$38.10Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SU1354-1KK20 — Electrical Ratings
ParameterValue
Number of poles2
Overvoltage categoryIII
5SU1354-1KK20 — Identification
ParameterValue
Product designationRCBO
Product design / constructionInstantaneous
5SU1354-1KK20 — Mechanical
ParameterValue
Mounting positionany
Width in modular units2
Maximum75 °C
Minimum-40 °C
Width36 mm
Height90 mm
Depth77 mm
Installation depth70 mm
5SU1354-1KK20 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU1354-1KK20 — Electrical
ParameterValue
Tripping Characteristic ClassC

Product details

What this RCBO carries

Two modular-width units (36 mm) snap onto standard DIN rail. Depth is 77 mm, installation depth 70 mm — check your enclosure's gland-plate clearance; some shallow consumer units need the 70 mm figure. Mount in any position, feed from top or bottom. IP20 only with conductors connected and the distribution board installed, so it's strictly indoor panel use.

At 40 °C it's 18.8 A; at 50 °C it's 17.4 A; at 60 °C it's 16.2 A; at 70 °C it's 14.6 A.

Frequently asked questions

Where can I buy 5SU1354-1KK20 and get a price?

Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.

What is the closest functional second-source to 5SU1354-1KK20?

The 5SL6550-7BB is a Siemens RCBO in the same SENTRON family, but it's a different pole/current combination — verify your BOM's required rating and curve before substituting. No direct drop-in replacement without checking the spec.

What is the depth of 5SU1354-1KK20?

77 mm overall depth; installation depth is 70 mm.

What is the width of 5SU1354-1KK20?

36 mm, which is 2 modular-width units on standard DIN rail.

Will 5SU1354-1KK20 drop into a panel specified around 5SL6550-7BB without rewiring?

Both are 2-MW DIN-rail devices, so the mechanical fit is the same. But the 5SL6550-7BB is a different rating and curve — check your circuit's load and fault requirements before swapping.

What compliance documentation does Siemens provide for 5SU1354-1KK20?

The part is halogen-free and silicon-free. It carries ratings per EN 60898 and IEC 60947-2. For specific RoHS/REACH/UL declarations, request the manufacturer's compliance pack at order time.

MPN
5SU1354-1KK20