RST® CLASSIC TECHNICAL DATA
RST20i2/i3

RST25i3

RST20i4/i5

RST25i5

Rated voltage

250/400 V

250 V

250/400 V

Rated current

20 A

250/400 V
20 A

Number of poles
Connectable cable diameter*
Temperature range:
Material

Pollution degree

25 A
25 A
32 A (at 6.0 mm )32 A (at 6.0 mm )2- or 3-pole
3-pole4- or 5-pole
5-pole6.0 - 10.0 mm; 10.0 - 14.0 mm; 13.0 - 18.0 mm
Connector - 40 °C to 100 °C
Cable H05VV max 70 °C, H07RN-F max. 60 °C, H07 RN-F enhanced 90 °C
Contact parts: Brass, surface-treatedhousing parts: Polyamide, halogen-free, V2
Sealing material: NBR
3 (when connected)

RST20i6/i7
250/400 V
20 A (3x20 A; 4x5 A)
no pole specification
6- or 7-pole

Protection rating

IP66 / 68 (3m; 2h) / 69, barrier seal for RST20i6/7 optional
Cable assembly as a shrink hose variant IP66/ 68 (3m; 2h)
The installation instructions must be followed (refer also to the White Paper"Electrical installation for outdoor areas" Order No. 0693.1)

IK codeGlow-wire test

IK 07 (2 joules)
RST20i2-i5/RST25i3/i5: at 850 °C, 30 s
RST20i6/i7: at 960 °C, 30 s
for connectors, distributors, cable assemblies and device connectors

Mating cycles

100 x without load and 50 x under nominal load (cos w = 0.6) to IEC 61535
Up to 5,000 mating cycles for RST20i2/3 / RST25i3 and 3,000 mating cycles for RST20i4/5 / RST25i5 are
possible without load. After approx. 600 mating cycles, the seal should however be tested and re-greased
with a suitable lubricant (e.g. Berulub FR 43 UV) if required.

Certificates / approvalsVDE; TÜV Rheinland; LR; GL / DNV; RINA; BV; ATEX; IECEx; cULus; CSA***; UL**(Observe conditions of acceptability)** No cable assemblies in shrink hose design and connectors in spring force design*** No cable assemblies in shrink hose design

Directives

IEC 61535 (VDE 0606); DIN EN 61984 (VDE 0627);
VDE 0110IEC 60999: UL 2238; CSA: C22.2 No.182.2-M1987;
LR Type Approval System2 PfG 1915

*Other diameters on request

184

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RST® CLASSIC DIMENSIONSRST20i2 – i7
CONNECTORS
femalemale

DEVICE CONNECTOR
femalemale

DISTRIBUTORS
1E / 3A

NOTE: Example illustration based on RSTi3 version.
The drawing for your product can be found in the download area of the relevant Art.No. at eshop.wieland-electric.com
Technical changes reserved

185

RST® CLASSIC CABLE PREPARATION
Connectable cable cross-sections
RST20i2/i3/25i3
Screw connection
Crimp connection 1)
Spring force

Solid0.75 - 6 mm
0.5 - 2.5 mm / AWG 20 - 14

Fine-wired, no cableend sleeve
0.75 - 6 mm
0.75 - 4.0 mm-Fine-wired, withcable end sleeve
0.75 - 4 mm
0.5 - 1.5 mm / AWG 20 - 16

Multi-stranded
ultrason. welded
0.75 - 6 mm / AWG 20 - 14 AWG 10 - 16
0.75 - 1.5 mm / AWG 20 - 16 0.75 - 2.5 mm

RST20i4/i5/25i5
Screw connection
Crimp connection 1)

Solid0.75 - 4 mm / AWG 14 - 18-

Fine-wired, no cableend sleeve
0.75 - 4 mm
0.75 - 4 mm

Fine-wired, withcable end sleeve
0.75 - 2.5 mm-Multi-stranded
0.75 - 4 mm / AWG 14 - 18
AWG 12 - 18

RST20i6/i7

SolidFine-wired, no cableend sleeve 2)

Fine-wired, withcable end sleeve

Multi-stranded

Screw connection

Connectors 0.2 - 1.5 mm
Device connector 0.2 - 2.5 mm-0.2 - 2.5 mm

0.2 - 1.5 mm

0.2 - 2.5 mm / AWG 14 - 20

0.2 - 2.5 mm--

Crimp connection 1)

For spring forces, please use the following cable end sleeves.
These can be found in RST® CLASSIC accessories.

RST® terminals with screw clamping allow the connection ofconductors without special preparation according to EN 60999-1.

Cable cross-section
0.5 mm0.75 mm / AWG 201 mm / AWG 18
1.5 mm / AWG 161) Crimp contacts must always be ordered separately tothe connector. The range of crimp contacts can be foundin RST® CLASSIC accessories.

FerruleDIN 46228-E0.5-10
DIN 46228-E0.75 -12
DIN 46228-E1.0 -12
DIN 46228-E1.5 -12

RST20i7/i6:2) Restriction of the connection section range for fine-wired cables,
when using connectors with the following strain reliefs.
- Double connection: 0.2 - 0.75 mm- straight, for cables Ø 6 - 10 mm and Ø 10 - 14 mm: 0.2 - 1.5 mm

Sheath strip and wire strip lengths
RST20i2/i3/25i3

straight
Ø 6 - 10 mm, Ø 10 - 14 mm

Cable
Screw connection
Spring connection
Crimp connectiony (PE)
31.5 mm
40 mm
42 mm

RST20i4/i5/25i5

straight
Ø 6 - 10 mm, Ø 10 - 14 mm
y (PE)
y31.5 mm26.5 mm
42 mm
37 mm

straight
Ø 13 - 18 mm
y (PE)
y
42 mm
37 mm
49 mm
44 mm

squareØ 6 - 10 mm, Ø 10 - 14 mm
y (PE)
y31.5 mm26.5 mm
42 mm
37 mm

splitter connector
Ø 6 - 10 mm, Ø 13 - 18 mm
y (PE)
y45.5 mm40.5 mm––straightØ 6 - 10 mm, Ø 10 - 14 mm
y (PE)
y30 mm
25 mm
37 mm
32 mm

straight
Ø 13 - 18 mm
y (PE)
y
42 mm
37 mm
44 mm
39 mm

squareØ 6 - 10 mm, Ø 10 - 14 mm
y (PE)
y30 mm
25 mm
37 mm
32 mm

splitter connector
Ø 6 - 10 mm, Ø 13 - 18 mm
y (PE)
y
45 mm
40 mm
––

Cable
Screw connection
Crimp connection
RST20i6/i7
Cable
Screw connection
Crimp connection

y26.5 mm
35 mm
37 mm

straight
Ø 13 - 18 mm
y (PE)
42 mm–57 mm

y37 mm–52 mmsquareØ 6 - 10 mm, Ø 10 - 14 mm
y (PE)
31.5 mm
40 mm
42 mm

y26.5 mm
35 mm
37 mm

splitter connector
Ø 6 - 10 mm, Ø 10 - 14mm,
Ø 13 - 18 mm
2-pole3-poleyy (PE)y
42 mm 45.5 mm 40.5 mm–55 mm
50 mm–––y (PE)xy186Technical changes reserved

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187

RST® CLASSIC DERATING CURVES
RST20i3 (Screw connection - spring force)
Derating curve to IEC 61984 Edition 2 dated 10/2008 Sec. 7.3.8
2.5 mmScrew connection

202.5 mm
Spring force

184.0 mmScrew connection

1614Load current (A)1210864205055

60

65707580859095100

105

Ambient temperature (°C)

RST25i3 (screw connection)
Derating curve to IEC 61984 Edition 2 dated 10/2008 Sec. 7.3.8

6.0 mmScrew connection

30

27.5

4.0 mmScrew connection

2522.5

Load current (A)

20

17.5

15

12.5

10

7.5

5

2.50

20

2530

3540

45

5055

60

65

7075

80

85

90

95100

105

Ambient temperature (°C)

188

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RST® CLASSIC DERATING CURVES
RST20i5 (screw connection – crimp connection)
Derating curve to IEC 61984 Edition 2 dated 10/2008 Sec. 7.3.8
2.5 mmScrewconnection

4.0 mmCrimp connection

204.0 mmScrew connection

182.5 mm
Crimp connection

1614

Load current (A)12108642030

3540455055

60

65

7075

808590

95

100

105

100

105

Ambient temperature (°C)

RST25i5 (screw connection)
Derating curve to IEC 61984 Edition 2 dated 10/2008 Sec. 7.3.8
32

6.0 mmScrew connection

30
2826

4.0 mmScrew connection

2422

Load current (A)20181614121086420202530

3540

45505560

65707580859095Ambient temperature (°C)
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189

RST® CLASSIC ASSEMBLY INSTRUCTION
CABLE ASSEMBLY
Screw connection

Number of poles
RST20i2/i3
RST20i4/i5
RST20i6/i7

Spring force

Torque0.8 - 1 Nm
0.5 - 7 Nm
Type 0.5 Nm

Crimp connection

Screwdriver
PZ1
PZ1
DIN 5264 A, ground 0.8 × 3.0 mm

CLOSING THE CONNECTOR

Tightening torquetyp. 4+1 Nm

OPTIONAL: USE THE MANUALUNLOCKING FUNCTION

INSERT AND LOCKManualunlocking seat

DEVICE CONNECTOR
Modular with M16, M20, M25 cable feed throughNut: Tightening torquetyp. 2.5...3Nm

One-piece with M25 cable feed throughDimension drawing of the opening for
housing installation when anti-twist
protection is requireddD
M16M20M25190

D (mm)
16.4 -0.2
20.4 -0.2
25.4 -0.2

d (mm)
15.0 -0.2
19.0 -0.2
23.9 -0.2

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UNLOCK AND DISCONNECTOPENING THE CONNECTORCABLE REMOVAL
Screw connection

Spring force

Crimp connection

Proceed in the same way for 2 to 7-pole connectors.
Observe the pole configuration.

NOTE: Please note that electrical connections and installations must be carried out only by appropriately trained specialists.
The Assembly instructions accompanying the product must be observed! The relevant Assembly instruction can be found online
in the download area of the product concerned: eshop.wieland-electric.com
Technical changes reserved191