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Automation boards
Ordering codes - SR2 enclosures

The exchange surface S can be calculated using the following table taken from the CEI 17-43

Disposition of the cabinet Calculating the enclosure surface S (mm ) Dimensions (m)
2
Detached, exposed on all sides S = 1,8 x H x (L+P) + 1,4 x L x P L = width
For closed to a wall structures S = 1,4 x L x (H+P) + 1,8 x P x H H = height
P = depth
Left or right exposed structure S = 1,4 x P x (H+L) + 1,8 x L x H
Left or right closed to a wall structure S = 1,4 x H x (P+L) + 1,4 x L x P
Central exposed structure S = 1,8 x L x H + 1,4 x L x P + P x H
Central closed to a wall structure S = 1,4 x L x (H+P) + P x H
Central closed to a wall structure, with S = 1,4 x L x H + 0,7 x L x P + P x H
covered roof
Using a SRN8630K box, in “for closed to a wall structures” case we will obtain:
T1 = 25 °C; T2 = 20 °C; K = 5,5; ΔT = (25-20) = 5 °C; S = 1,4m 2

The total power dissipation P obtained will be:
P= k * ΔT * S = 38,5 W

The recommended heater is VA7950 (50W).

Temperature management
IP20 Thermostat
Conforms to EN 60730-1, CE and cURus standards, IP20 degree of protection. Grey RAL 7035
colour; electrical life 100,000 cycles. Dimensions (HxWxD) 68x29x45mm, can be mounted on
DIN rail. The version with NO (normally open) contact allows closure of a circuit activating
ventilation, air conditioning, or alarms. The version with NC (normally closed) contact allows
opening of a circuit, disconnecting any anti-condensation resistances.
Package/
Standard power supply No. of
Description V~/50-60Hz Code pieces
NO ventilation thermostat 12-60 V d.c.; 110-250V a.c. EN0101K 1/1
NC heating thermostat 12-60 V d.c.; 110-250V a.c. EN0102K 1/1

Contact capacity
Standard power supply Temperature Type of
Code V~/50-60Hz Load Ω Load L scale contact Weight
EN0101K 12-60 V d.c.; 110-250V a.c. 10A 2A -10 +80 °C NO 54g
EN0102K 12-60 V d.c.; 110-250V a.c. 10A 2A -10 +80 °C NC 54g

Frame for DIN rail
Internal supports for fixing modular panels and DIN rails, colour RAL 7035 orange peel.
Dimensions Package/
(mm) No. of
Description H W Code pieces
Supports 14 mod. DIN x 2 rows 500 400 KD5040K 1/1
Supports 14 mod. DIN x 3 rows 600 400 KD6040K 1/1
Supports 25 mod. DIN x 4 rows 800 600 KD8060K 1/1
Supports 25 mod. DIN x 5 rows 1000 600 KD1060K 1/1 20
Supports 36 mod. DIN x 5 rows 1000 800 KD1080K 1/1
Supports 25 mod. DIN x 6 rows 1200 600 KD1260K 1/1
Supports 36 mod. DIN x 6 rows 1200 800 KD1280K 1/1